M2896-63_Maintenance_Manual.pdf - bitsavers.org

TJ2-G430SD

II

OPERATION MANUAL

1.

2.

3.

4.

CONTENTS

SCOPE

RELATED DOCUMENTS

MECHANICAL COMPONENTS

3.1 3.2

Component List ..... Operation .' ... 3.2.1 Spindle motor (drive motor) 3.2.2 Stepping motor (stepper motor) 3.2.3 Index sensor, LD ASSY ..•.•. 3.2.4 3.2.5 3.2.6 3.2.7 3.2.8 3.2.9 3.2.10 3.2.11 3.2.12

Index sensor, PT ASSY ••.•.. TKOO sensor ...•..•.•.•.•..••• Magnetic heads ......••.••.......•••.•..... Head load magnet. .••.....••... . ..••••• Write-protect sensor ..•••..•. • ..•.••.•••.... Door-lock magnet .••....•.•..•....••. . ..••••.• Indicator . . . • . . • • . . . • • . . . • . • • • . . ..•••••• Detector coil .....•.........•......••.•.••.••••.••... Disk mounting detectin switch ••••••••••••••••••••••••

CIRCUIT OPERATION

4.1

4.2 4.3 4.4

4.5

4.6 4.7

Input/Output Signals 4. 1. 1 Input signals ••.•••..••••••.•.•.••••••••.•••.•••••.••• 4.1.2 Output signals 4.1.3 Timing charts PCB Circuits Circuit Functions Operation 4.4.1 Line driver circuit .......••.••••••••••.••.•.••••••.. 4.4.2 4.4.3 4.4.4 4.4.5 4.4.6 4.4.7 4.4.8 4.4.9 4.4.10 4.4.11 4.4.12 4.4.13

Line receiver circuit ..•..•.••.••.••••..••.•.••••••.. Write circuit ...........•.••••••••••••.•..••.•••••••. Erase circuit· .•..••...•.••••..•••.••.•.••.••••.•.•... Wri te-protect circuit· ....•••....••••••.••..••••.••••. Read circuit ....••.••...•.••••••••••.••••••.....••••• Positioning circuit .••.••••••••.•••••••••.•.••••••.•• Head-load circuit ••..••.••••••.•••••••••.•...••..• Head select circuit . Drive select circuit Door-lock circuit .•.•.••••.... Track 00 detection circuit Index detection circuit .••

4.4.14 Gate array clock circuit .• Optional Functions 4.5.1 Selection with jumper plug Test Points Block Diagram

Page

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1. SCOPE

This manual describes the mechanical components and PCB circuits of the M2896-63 8-Inch Half-Height FDD.

2. RELATED DOCUMENTS

3.

3.1

3.2

3.2.1

TJ2-G4301 Circuit Diagrams for Maintenance Purposes

MECHANICAL COMPONENTS

Component List

Component Abbreviation

1 Spindle motor (drive motor) SPM

2 Stepping motor (stepper motor) STM

3 Index sensor LD IXLD

4 Index sensor PT IXPT

5 TKOO sensor TKOO DT

6 Magnetic head HEAD 0, HEAD 1

7 Head-load magnet HLMG

8 Write-protect sensor WPDT

9 Door-lock magnet DLMG

10 Indicator IN USE LED

11 Detector coil DTCL

12 Disk mounting detection switch MICRO SW

Operation

Spindle motor (drive motor) - SPM

This 24-V DC direct drive motor rotates the disk at a constant speed. The drive PCB and motor are installed as one unit.

- 1 -

3.2.2

3.2.3

3.2.4

3.2.5

3.2.6

3.2.7

3.2.8

stepping motor (stepper motor) - STM

This motor determines the position of the magnetic head. It rotates one step (3.6°) with each input pulse, advancing or retracting the head one track (0.529 rom) with each step by means of a steel band that converts the rotary motion of the motor to linear motion. The direction of rotation of the motor is determined by application of pulses to combinations of two of the four phase-excitation coils.

Index sensor, LD ASSY - IXLD

IXLD is composed of two LEDs, which are used as the light source for a circuit that detects the index holes in single- or double-sided disks.

Index sensor, PT ASSY - IXPT

IXPT is composed of two phototransistors that send a pulse to the index pulse detection circuit when illuminated by light passing through the index holes of a single- or double-sided disks.

TKOO sensor - TKOO DT

This photoelectric switch consists of light-emitting and lightreceiving elements; it is turned on and off by a plate attached to the carriage that moves between the elements.

The switch is normally on. When the carriage is positoned at track 00, however, it turns off and a TKOO position detection signal is emitted.

Magnetic heads - HEAD 0, HEAD 1

These two heads contact the surfaces of the disk to record and play back data, and for tunnel erasure at recording.

Head-load magnet - HLMG

This solenoid brings the magnetic heads into contac~ with the disk surface for recording and playback. They normally are exc~ted only at recording and playback.

Write-protect sensor - WPDT

This photoelectric switch consists of light-emitting and lightreceiving/elements and is used to detect the write-protect hole

- 2 -

3.2.9

in the disk. When an ordinary disk (one without a write:;"protect hole) is inserted in the drive, the light path between the elements in the switch is blocked so the switch is off and write operation is enabled. When a disk with a write-protect hole is inserted, the switch is on and write operation is inhibited by the write-protect circuit.

Door-lock magnet - DLMG

Under standard specifications, the door-lock magnet operates when the DRIVE SELECT signal is received so the door cannot be opened while the controller is accessing the drive. It may also be operated with the IN USE and HEAD LOAD signals if so required (see 4.5 for details).

3.2.10 Indicator - IN USE LED

This LED, mounted on the front panel, indicates that the controller is accessing the drive. It operates when the drive is in READ status and a DRIVE SELECT or IN USE signal is received.

3.2.11 Detector coil - DTCL

This coil is mounted on the head-load magnet. It detects (by means of the induced voltage) the speed at which the head is loaded or unloaded and outputs a feedback signal to the closed-loop circuit in the head-load circuit.

3.2.12 Disk mounting detection switch - MICRO SW

This is a microswitch to detect insertion of a disk into the disk drive.

- 3 -

4. CIRCUIT OPERATION

4.1 Input/Output Signals

4.1.1 Input signals

CD - WRITE GATE

0 - WRITE DATA

CD - WRITE CURRENT SWITCH

® - STEP

® - DIRECTION SELECT

® - HEAD LOAD/(-MOTOR ON)

(2) - SIDE SELECT

® - IN USE

® - DRIVE SELECT 1

@ - DRIVE SELECT 2

@ - DRIVE SELECT 3

© - DRIVE SELECT 4

© - MOTOR START

4.1.2 Output signals

@ - TRACK 00

@ - DISK CHANGE

@ - TWO SIDED

@ - INDEX

@ - READY

@ - ALTERNATE I/O 2

@ - ALTERNATE I/O 3

@ - ALTERNATE I/O 4

@ - READ DATA

@ - WRITE PROTECT

- 4 -

4.1.3 Timing charts

The primary I/O signal timing is shown in figures 4.1-1 through 4.1-6.

-DRIVE SELECT

1\

CONTROL signal ___ -+-'"-' r-------------------, -- ---- ~-'I'----......;...-----------

-Tlr---

Tl ~ 500 ns

A CONTROL signal must alwasy be output after the DRIVE SELECT signal.

Figure 4.1-1 DRIVE SELECT and CONTROL Signals

-DIRECTION

-STEP

/ Direction of

___ -J outer edge

~ r1 ~s min.

~ection of inner edge

U Ur-------f,U-U-

~. T2 I T3 I

Tl: l~s to 1 ms

T2: 3 ms min.

T3: When DIRECTION is inverted, the next s"tep pulse is output a minimum of 18 ms after the step pulse previous to inversion.

Figure 4.1-2 DIRECTION and STEP Signals

- 5 -

-SIDE SELECT

-WRITE GATE (OR READ GATE)

Tl: Head select

T2 : Erase delay (In reading

Figure

-WRITE GATE

(Side 1 is selected)/ ~

(Side . ~,

I I} I selec

I T2 I I

Tl I I I.

(Read) (WRITE) I (Read) ., I

I I

delay time Tl :;;; 100 11s (R/W inhibited)

time T2 :;;; 590 11s T2 :;;; 100 11s)

4.1-3 Head Select and WRITE GATE signals, and Playback Operation

(Playback signal) __________________ ~----------~~~--J e a 8 e

o .is ted)

:;;;590 )..ls

F~gure 4.1-4 Read Recovery Time

- 6 -

DC POWER

VALID. CONTROL OUTPUT SIGNAL

-DRIVE SELECT

-SIDE SELECT

J"'---,-----i(f--f -----4HJ----

-, j-- 200 ms maximum

~I--------~'~f--------------~f~f--------------1~ 500 ns maximum

------,'----------~ I II~------------~'~I--------------

-----......:....-H H

_-----:....-.;.....-1-1,..---1 l~_~X_~Sr-----4(I--,L--__ ~11 l ~ 590 ~~ax.

-DIRECTION SELECT . ~ '" !

-i min. %~ ~: :~:: I -1 ~ ;i~~ -STEP

-WRITE GATE

-WRITE DATA

-VALID READ DATA SIGNAL

-YJ--+II~o ~s II ~i~~~ I ~~~·i -1 I 18 ms minimum.

---------~------~fI ~-----------II 1-: 11Oo~smin..1 I~ r-i sec min. = 11-4 ~s ma~ ( ru,....:..-----~ ~ 18 ms min. ~ r- 590 ~s max.

~~1-3? -ms Wlf'U Ir----u-u-r-mln. l

1 sec I max.

Figure 4.1-5 Write Operation

- 7 -

READ

-HEAD LOAD

-WRITE GATE

-WRITE DATA

-READ DATA

100 l-1s m~n~mum -SIDE SELECT (Read inhibit)

Note: R/W operation is impossible in the shaded areas.

Figure 4.1-6 Read Operation (following write operation)

4.2 PCB Circuits

CD POWER CIRCUIT

0 READ CIRCUIT

CD WRITE CIRCUIT 1, 2

8) DETECT CIRCUIT

® CONTROL CIRCUIT 1, 2, 3

@ MOTOR, SOLENOID DRIVE CIRCUIT

4.3 Circuit Functions

<D Line Driver Circuit

® Line Receiver Circuit

CD Write Circuit

G) Erase Circuit

® Write-Protect Circuit

@ Playback Circuit

G) Positioning Circuit

® Head-Load Circuit

- 8 -

~ Head-Select Circuit

@ Drive-Select Circuit

@ Door-Lock Circuit

@ Track 00 Detection Circuit

@ Index-Detection Circuit

@ Gate Array Clock Circuit

4.4 Operation

4.4.1

4.4.2

The interface signals between the controller and the FDD are indicated by *s.

Line driver circuit

When the AND condition occurs for th drive select signal and signals output by internal circuits, the drive circuit outputs an interface signal for the selected drive. The driver is an open-collector IC (SN7438N or equivalent) having a sink current (IoL) of 48 mAe

The following signals are ANDed:

READ DATA TWO SIDED DISK CHANGE READY INDEX WRITE PROTECT TRACK 00

Signals from internal circuits

_____________________ ~. Interface signal

DRIVE SELECT

Note: PC is showing an open-collector IC

Line receiver circuit

An interface signal is input only to a drive that has been selected as a result of an AND condition of the drive select signal and receiver output. The receiver uses a Schmitt trigger IC (SN7414 or equivalent) to obtain a stable logic level.

- 9 -

The following signals are ANDed:

WRITE DATA WRITE GATE DIRECTION SELECT STEP IN USE HEAD LOAD MOTOR START SIDE SELECT

*Interface

+DRIVE SELECT

Logic level

Note: ST is showing a Schmitt trigger IC

4.4.3 write circuit

I DATA write I Write

- WRITE DATA circui t I @I

amplifier

- WRITE GATE

B4 F/F

IC E3, C7

AND gate circuit

®I

WRITE CIRCUIT - I

- WRITE

IJ LnnJ DATA

I I I I ® I I I I

I I I I ® ----.J I I I

- 10 -

B6

Head-select circuit circuit

WDI R WI Head 0 C a

R/W WD2 R/W2 LC R/Wl A9 CTI R/W

WRITE CIRCUIT - 2

~ U I

I I I I I I

4.4.4

WG

* The WRITE DATA (interface signal) passes through the receiver circuit and determines head write timing in the data write circuit.

- WRITE CIRCUIT - 1 -

The write amplifier circuit supplies current to the magnetic head in accordance with the data write circuit timing. Head select for a write operation and write current control are performed by hybrid ICs (A9, B9).


* The WRITE GATE interface signal (after it has passed through the receiver) is ANDed with DRIVE SELECT (+DS) and READY (+RDY). The output is then ANDed with -WP OR -RST OR -RDY to produce +WG AND +WP.


The +WG AND +WP signal is input to WE of the hybrid IC (A9). Write operation is then begun, provided that the drive is selected, in the ready status, and not write-protected.


- CONTROL CIRCUIT - 2 -

Erase circuit

I I I

: Head select, erase driver I I

+ER I CNT Head 0

I A9 3 06 1 Hybrid Gate EG IC

ERASE

array

~ ERASE

Head 1

CONTROL CIRCUIT - 2 WRITE CIRCUIT - 2

- 11 -

The erase signal (+ER CNT) is generated with the gate array (06) using the WRITE,GATE signal. Its rising edge occurs 200 ~s after the falling edge of the WG signal, and its falling edge is 520 ~s after the rising edge of the WG signal.


The erase signal generated by the gate array (06) is currentamplified by the hybrid IC erase driver (A9) and supplied to the head.


-WG I ~

ERASE CONTROL \

r---

200jJs flO jJs 520 jJs flO jJs

4.4.5 Write-protect circuit

OPAMP I WP I o AND GATE

WRITE PROTECT ~W~T * -WRITE PROTECT

" I I '" Fa I J D3 J I Hybrid J OR GATE

I IC I I A9

I ~ E3 I -WP OR -RST OR l t·ybr'id I I +ROY . I IC

DS2 I -RST I

I

+RDY I I

6 I I

RDY

DETECT CIRCUIT CONTROL CIRCUIT - I CONTROL CIRCUIT - 2

- 12 -

4.4.6

Head 0

R/W

R/W

Head 1

The write-protect hole in the disk is detected by the optical sensor and a stable logic level is obtained using a hybrid Ie (Fa).

- DETECT CIRCUIT -

Logic level WPT is ORed with the gate array RDY and RST to produce the WP OR RST OR ROY signal.


At data write, the WP OR RST OR ROY signal inhibits a write operation on a write-protected at disk, at power-on reset, and during not-ready condition of the drive.


WPT is ANDed with DRIVE SELECT and output as the WRITE PROTECT interface signal.


Read circuit

The read circuit consists of diode matrixes in hybrid ICs (A8, B8), a multifunctional IC (AS), and associated external components.

- READ CIRCUIT -

Diode

A9, 89 Hybrid IC

READ DATA

ADl I

+PC Post ________ ~. compensa

AD3 tion

Low-pass filter

I AD4 I I L ________ J

Zero-, crosslng discriml.nator

Pulse shaping

Iln\ I circui t ~ II MC3470 A6

IL-----------------------------------I

WRITE ClRCUIT - 2 I I

READ CIRCUIT

(1) Diode matrix

Heads are selected by the diode matrixes in the hybrid ICs.

- 13 -

(2) Differential amplifier

A linear amplifier amplifies the read signal voltage from the selected head.

(3) Low-pass filter

LCR filter used to remove high frequency noise.

(4) Differentiating amplifier

Used to differentiate the read signal voltage peak for zero conversion.

(5) Post compensation.

The timing margin at reading is increased by switching the filter of the differentiating amplifier in response to the position of the reading track.

(6) Zero-crossing discriminator

Generates a pulse with ,the rising edge at the zero crossing of the differentiating amplifier output.

(7) Pulse shaping circuit

This arranges an output pulse shape into a certain width.

(8) Waveforms

Read signals

I I I I I I READ DATA @

- 14 -

4.4.7 Positioning circuit

* -STEP ¢l

06 ¢4 Gate

* -DIRECTION SELECT

r-~~array I

>-------------~~T>-------~

I I I I I

STM driver

EIO

CONTROL I MOTOR SOLENOID CIRCUIT - 2' DRIVE CIRCUIT CONTROL CIRCUIT - 1

The STEP interface signal is input to the gate array (06) after passing through the receiver.


The DIRECTION SELECT interface signal is input to the gate array after passing through the receiver.


The two signals (above) input to the gate array are output from 01 and 02 of the gate array as step motor control pulses.


The stepping motor is driven by the STM driver.

- MOTOR SOLENOID DRIVE CIRCUIT -

- 15 -

4.4.8 Head-load circuit

I I I I

Step PUlse'

-HEAD LOAD

CONTROL CIRCUIT - 1

, I I I I I j+RD'i

I I I I I I

Q~--------------~ Oneshot IC _ E5 Q 1------1-----,

6 Gate array

'06

CONTROL CIRCUIT - 2

HL

I

Detector coil r---- --------DTCL---: I Closed-loop control circuit l I , I , I I , , L __________ .J

Head-load magnet Hybrid ~LMG

IC F5

+24 V

: SOLENOID DRIVE CIRCUIT

The HEAD LOAD interface signal is output to the gate array after passing through the receiver.


After the HEAD LOAD signal goes low, a logic level signal ,(HEAD UNLOAD DELAY) is generated for approximately 0.5 second in the gate array_ This is ORed with the HEAD LOAD signal to increase the actual time for which the head is ~nloaded. The delay may be eliminated by setting the HUD optional plug to HUN.

The HEAD LOAD signal is ORed with the output from the one-shot IC and the driver in the hybrid IC applies +24 V to HLMG for approximately 50 ms. The head loading speed is optimized by the closedloop control circuit.

If a step pulse or door lock signal is not input to the one-shot IC approximately 50 ms later, the current applied to HLMG decreases so as to reduce the heat dissipation from the magnet.

- 16 -

4.4.9 Head select circuit

Head 0 *-SIDE SELECT HEAD

C SEL R/W Gate array C Erase

D6 C R/W CTI

A9 C Erase

Head 1

CONTROL CIRCUIT - 1 CONTROL WRITE CIRCUIT - 2 CIRCUIT - 2

The SIDE SELECT interface signal is input to the gate array SIDE SEL all after passing through the receiver.


The HEAD SEL signal is input to HSO and HSI of the hybrid IC (A9) to select a head for a read or write operation.


The delay with which the change occurs in the output after the SIDE SELECT signal is switched is shown in the diagram below.

HEAD SELECT INPUT

SIDE SELECT OUTPUT

SIDE 1

SIDE 1

SIDE a

SIDE a

~ 100 11s maximum

- 17 -

~. SIDE 1

~ SIDE 1

- 100 11S maxim urn

4.4.10 Drive select circuit

1 Gate array

2 06 *-ORIVE

SELECT 3

4)

Drive select pin CONTROL

CONTROL CIRCUIT - 1 CIRCUIT - 2

The DRIVE SELECT signal is only effective if specified with the drive select pin on the PCB. The ~nput signal for the. specified drive is input to the gate array after passing through the receiver.

- CONTROL CIRCUIT - 1

The DRIVE SELECT signal hardware gates the following I/O signals (brackets indicate that the signal is optional):

Input signal

(WRITE CURRENT SWITCH)

WRITE GATE

WRITE DATA

(IN USE)

(HEAD LOAD/MOTOR START)

SIDE SELECT

DIRECTION SELECT

STEP

Output signal

WRITE PROTECT

(DISK CHANGE)

(TWO SIDED)

READ DATA

INDEX

TRACK 00

READY

- 18 -

4.4.11 Door-lock circuit

Step pulse -~~--~

HEAD LOAD signal E3

One-shot

IC

ES

Door-lock magnet

DOOR-LOCK signal -t+"-----------f--...I

CONTROL CIRCUIT - 1, CONTROL CIRCUIT - 2 SOLENOID DRIVE CIRCUIT

I ,

An option setting allows the DOOR LOCK signal to be activated by the DRIVE SELECT, HEAD LOAD, or IN USE signal.


The one-shot IC (ES) is triggered by a step pulse, the HEAD LOAD, or DOOR LOCK signal. Output is active for approximately 50 ms.

- CONTRO~ CIRCUIT - 2 -

For approximately 50 ms after the DOOR LOCK signal is input, full current is supplied to the door-lock magnet by IC F2. The current is then decreased to reduce the heat dissipation by the magnet.

- SOLENOID DRIVE CIRCUIT -

- 19 -

4.4.12 Track 00 detection circuit

OP AMP c;> TKOP

F8 TKOO 14 04 +TKOP 11 Gate 8 ,...,

Hybrid array IC

D6

+DSI TKO

• • I

I I *-TRACK 00

D3 I

I I

AND GATE

DETECT CIRCUIT CONTROL CIRCUIT - 2

Track 00 is detected by the optical sensof and a $tabl~ logic level is obtained using a hybrid IC (F8).

- DETECT CIRCUIT -

The +TKOP signal is input to the ga~e array (pin 11).


The TKO signal is output upon a step pulse input when the DIRECTION signal is high (revers~) and the step driver STM (green) (connector P2, pin AI) and STM (red) (connector P2, pin B2) are both low.

-STEP PULSE 1 I \ I I' I ~ f , I '--' L-I 1'--' 1\.....1 LJ

-DIRECTION Outer edge {REVERSE \ \

Inner ed ~e (FORWARD)

TKOO (PHOTO)

TKL

-TRACK 00

2.7 ms maximum 4 llS maximum

- 20 -

4.4.13 Index detection circuit

OR GATE

-B I "IX

~

- DE * IN X

OP AMP

INDEX 0 F8

,.. I2 02 .() IXO ~

I3 03 Gate ,...

~ IXl '" INDEX 1 array Hybrid D6

Ie

DETECT CIRCUIT CONTROL CIRCUIT - 2

The IXO and IXl signals are detected by the optical sensor and a stable logic level is obtained using a hybrid IC (F8).

- DETECT CIRCUIT -

IXO and IXl signals are ORed and the output is applied to the gate array for output as the INDEX signal.


4.4.14 Gate array clock circuit

The gate array clock signal is generated by a 6-MHz ceramic oscillator and capacitor.

- 21 -

4.5

4.5.1

Optional Functions

Selection With Jumper Plug

Hardware selection of functions is possible, using the plugs on the PCB.

Plug: Cut:

Insert plug Cut pattern

Open: Remove plug Jumper: Jumper wire

Jumper plug

Plug RS

Open RM

Function

When single-sided disks are used, system is not in ready status when SIDE SELECT goes low.

~------------. ------------------------------------------------------Open RS When single-sided disks are used, system remains in

ready status when SIDE SELECT goes low. Plug RM

Plug D

Plug IT*

Open HI

Jumper DL

Plug A

Plug B

Plug X

Open C

IN USE is latched with DRIVE SELECT and used as DOOR LOCK and IN USE.

DRIVE SELECT is ANDed with READY and used as HEAD LOAD.

- 22 -

(con. )

Jumper

Plug

Open

Plug

Plug

Jumper

Jumper

Open

Open

Open

plug

HI

IT

A

X

DL

HLL

B

C

D

Function

Latched with DRIVE SELECT for HEAD LOAD input and HEAD LOAD output.

HEAD UNLQAD is obtained by setting HEAD LOAD high and inputting DRIVE SELECT again.

~------------. ------------------------------------------------------Open

Plug

Plug

Plug

Jumper

Jumper

Open

Open

Plug

HI

IT*

A

X

DL

HLL

B

C

D

Latched with DRIVE SELECT for IN USE Input and HEAD LOAD output.

HEAD UNLOAD is obtained by setting IN USE high and inputting DRIVE SELECT again.

* with a daisy chain configuration, jumper plugs may be installed only in drives connected to terminals.

** When the disk drive is used with "YI" open, nyn must also be open.

*** If a plug to short "YIn is not available, short ny" with a jumper instead.

NOTE: "YI" applies only to the PIN DC447248-04-E and latter versions.

- 23 -

Jumper plug Function

Open Sl SIDE SELECT and DIRECTION SELECT input separately.

Plug S2

Open S3

~------------.------------------------------------------------------Plug Sl

Open S2

Open S3

DSI to DS4

IB to 4B

Plug WP

Open NP

SIDE SELECT and DIRECTION SELECT input on same line in succession.

Used for DRIVE SELECT allocation.

Used for SIDE SELECT when a DRIVE SELECT line is used with two drives.

In this case TRACE "Sl" "S2" OPEN "S3" CLOSE.

Write-protect hole in disk is used and WRITE PROTECT signal is sent to host computer.

~------------ ------------------------------------------------------Open WP

Plug NP

Plug D

Plug IT*

Open Yl**

Plug Z

WRITE PROTECT signal ignored so that write operation is always possible.

IN USE is ORed with DRIVE SELECT to light IN USE LED.

~-------------------------------------------------------------------Open D HEAD LOAD lights IN USE LED.

Plug IT*

Plug HI

Open Z

Open Yl**

- 24 -

(con. )

Jumper plug

Plug D

Plug IT*

Open HI

Open Z

~------------Plug D

Plug IT*

Plug Yl***

Opep z

Plug C

Plug x

Plug SE

Open SI

Function

IN USE lights IN USE LED.

IN USE or HEAD LOAD lights IN USE HEAD.

"Low current" controlled with signal from pin 2 of connector Jl (external device).

------------- ------------------------------------------------------Open SE

Plug SI

Plug D

Plug IT*

Open HI

Cut v

Plug Yl***

"Low current" controlled with gate array TRACK COUNTER' value.

Door locked by IN USE.

------------- ------------------------------------------------------Open D Door locked by HEAD LOAD.

Plug IT*

Plug HI

Cut V

Plug Yl***

- 25 -

(can. )


Plug D Door locked by IN USE Or HEAD LOAD.

Plug IT*

Plug C

Plug X

Open B

Jumper V

Open Yl** -------------~.------------------------------------------------------Plug D

Plug IT*

Open C

Plug X

Plug B

Jumper V

Open Yl**

Plug A 1-------------

Plug D

Plug IT*

Open HI

Jumper DL

Plug A

Door locked by IN USE or DRIVE SELECT.

Latched with DRIVE SELECT for IN USE input and door locked status maintained.

The IN USE line is set high ·and a low DRIVE SELECT is input again.

- 26 -

(con. )

Jumper plug

Open HUN

Plug HUD

Function

The head unload status is maintained for approximately 50 ms after HEAD LOAD goes from low to high in order to provide a delay in head unloading (head unload delay) .

~------------ ------------------------------------------------------Plug HUN

Open HUD

First drive

Plug R

Cut RR

-------------Other drives

Open R

cut RR

Jumper wire between alternate I/O and R

First drive

Plug I

Cut RI f-------------Other drives

Open I

Cut RI

The head unload status is assumed immediately after HEAD LOAD goes from low to high (head unload normal).

The ready line of each drive is monitored without drive selection.

(To use alternate I/O pin No.2, Cut "0-2" and Open "SE" , Plug "SI".)

The index line of each drive is monitored without drive selection

- 27 -

(con. )


Plug A DRIVE SELECT is ANDed with HEAD LOAD to load head.

Plug B

Plug C

Open X

Open HI

Plug A Used for seek with the door open and the head unloaded.

Open B

Plug C

Plug X

Open HI

Open A Used for disk-to-disk copy.

Plug B

Plug C

Plug X

Open R Used for star connection of READY.

Jumper

Alternate I/O

Open I Used for star connection of INDEX.

Jumper

Alternate I/O

- 28 -

(con. )

Jumper plug

Plug DC

Plug 2S

Jumper wire between alternate I/O and I

Plug MO

Open MS

Function

Necessary when DISK CHANGE is used.

Necessary when TWO SIDED is used.

(To use alternate I/O pin No.2, cut "0-2" and Open "SE", Plug "SI".)

HEAD LOAD start motor.

~------------~-----------------------------------------------------------Open MO DRIVE SELECT starts motor.

Plug MS

~------------~-----------------------------------------------------------Plug MO HEAD LOAD is ANDed with DRIVE SELECT to start motor.

Plug MS

~------------~-----------------------------------------------------------Open MO

Open MS

Plug JFG

Open JSG

Motor starts when DC power is supplied and disk is inserted.

Frame and signal grounds connected via capacitor.

~------------------------------------------------------------------------Open JFG Frame and signal grounds separated.

Plug JSG

Plug PS HEAD LOAD ANDed with standard READY.

Open PH

-------------~~----------------------------------------------------------Open PS HEAD LOAD ANDed with ho ld READY.

Plug PH

- 29 -

(con. )


Open HR Standard READY output to interface line.

Plug HY

--------------~----------------------------------------------------------Plug HR Hold READY output to interface line.

Open HY

Plug M1 MOTOR START (signal connector J1 pin 4) starts motor.

Open M2

Plug MO

Open MS

Open M1 MOTOR START (signal connector J1 pin 18) starts motor.

Plug M2

Plug MO

Open MS

- 30 -

(con. )

Jumper plug

Jumper V3

Cut V4 (pattern)

Jumper V5

Cut V6

Jumper V7

Cut V8

Function

Power-down is canceled after DRIVE SELECT or STEP pulse is received, and is effectuated again after 50 ms irrelevantly HEAD LOAD.

-------------~-----------------------------------------------------------Cut V3 Power-down is canceled after HEAD LOAD or STEP pulse is

Jumper V4

Jumper V5

Cut V6

Jumper V7

Cut V8 -------------

Jumper V3

Cut V4

Cut V5

Jumper V6

Cut V7

Jumper V8

received, and is effectuated again after 50 ms.

------------------------------------------------------------Power-down is canceled whenever HEAD LOAD is received (factory setting).

- 31 -

4.6 Test Points

Test points are shown in Table 4.6-1.

Table 4.6-1 Test Points

Test pin Description

number

AD 3 ANALOG DATA (Amplified Signal)

AD 4 ANALOG DATA (Amplified Signal)

(RFa) +READ DATA

WG +WRITE GATE (This is ANDed signal with -WRITE PROTECT and -WRITE GATE.)

LC -WRITE LOW-CURRENT SWITCH

HS -HEAD SELECT (HEAD 1)

EG -ERASE GATE

RDY + READY

WP -WRITE PROTECT

IXO -INDEX 0

IX1 -INDEX 1

TKOP +TRACK 00 PHOTO

HL -HEAD LOAD

TKOO +TRACK 00

STP +STEP

IX +INDEX (This is ORed signal with -INDEX 0 and -INDEX 1)

DE +DRIVE ENABLE

HLA, HLC +HEAD LOAD ANALOG, +HEAD LOAD CONTROL

- 32 -

4.7 Block Diagram

-WRITE DATA

-WRITE

GATE

iREAD-CIRCuIT-----------l

, I

r -....,. --------, I WRITE

I I POST COM, PENSATION

I

READ CIRCUIT H-

I CIRCUIT - 2 I I

I L--~-T..----J I L..-_-+

1 -+-+-i, , DIODE

MATRIX , I

LINE RECEIVER L ____________________ ::.l

r-- PRITECIRCUIT---Il r-------------

>- Jl l-------------t-I--I' WRITE DATA I I WRITE I I TRIGGER I I DRIVER ~~-~

J

>-L __________ J I

CURRENT SOURCE DRIVER

HYBRID IC

HEAD ° ~i--~,. ...... -3-1 R/W

i 13' .- I

~J EPASE

~i-+-..--J-f__--L~ ..... ~ R/W

~'-~I ....:::J I ERASE

..J

HEAD 1

-t--WRITE

CURRENT >SWITCH

!v( >-L _______ --,

r-- HEAD SELECT + r- ERASE DRIVER ---!-

I

-STEP >-

>-

, , I i

lOR GATE I L_

1 PSR WRG

HIS STP

ERG

SEL CUO COO

GATE

WRITE 1 PROTECT I

I HYBRID IC 1

_ ________ .J

LINE DRIVER

,.-

Jl f- - READ DATA

f-- - INDEX

'-- - TRACK 00

r-r--- - - READY -MOTOR

START ARRAY I- - WRIT.E PROTECT

TKO -HEAD LOAD

MOTOR START >- lOR GATE ~ ,--- I- - DISK CHANGE

-SIDE SELECT

-IN USE

-DRIVE SELECT

WRITE PROTECT

INDEX 0

INDEX 1

1

2

3

4

HLD I- - TWO S IDED

2 DIR ROY g 0-- - - ALTE RNATE

4 0-- - - ALTE RNATE

HSL 6 >-0-- - - ALTE RNATE

>-T

>-SOK

>- DRIVE-SELECT

L IXR

IXH

,----------, ¢4 1----I4--..-----~il ~-1

1 .----4' STEPPING rTf fllr I >- CIRCUIT 1 I MOTOR ........-- I STM

>-r ------, I lOR GATE I

MICRO SW ' I

I 'DRIVER 1':': I ¢ 1 1----14---6----..... " I L ~ '.! _ J

r=rl I ! ~J;---+--+-+I-+--+-ll---~I+-~

r-------- - .J I

I I , 4------H=-= -- ___ J '-+11--+---+------.., I J WRITE- ! I I _, PROTECT H-+--~~--. OR GATE t f-'

o-l DETECTOR I

1Q=j' I I-e- STM CT1.2

POWER L-I CONTROL I , I

FF I HYBRID IC I r----' , HEAD LOAD ~.' DTCL

L! CONT,ROL I L..,. __ J

llJ HEAD LOAD I r---- HLMG nl DRIVER I L ___ _

I MOTOR I I SOLENOID ,

HUD I--

TOL

- I 11 I ,--

TRACK 00 o-t HYBRID IC H-1-+-T-RA-C-K-O-O--4lkJ--+-------I I AND GATE lOR GATE

'I I I ! DETECT I FF t====~-I--t=~~ !_C_I_~C_U_IT __ ...JI 1.1 - AND GATE JJ------1

I DRIVE CIRCUI~ ~ UJ DOOR LOCK I r:::-ll DLMG 11 DRIVER ~~~~_J L __________ J

MOTOR ON DRIVER

SPM

- 33 -

IN USE LED DRIVER

IN USE

I/O

I/O

I/O

TJ2-G4296D

MAINTENANCE MANUAL

CONTENTS

Page

1. INTRODUCTION. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . • . • . . . . . 1

2. RELATED DOCUMENTS AND D AT A . . . . . . . . . . . . . . . . . . . . . . . . . • . . . . . . . . . . • . . . . . 1

3. MAJOR COMPONENTS ... ~ . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 2

4. OPERATION. .. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .. . . . . . . . . . . . ... . . .. . . . . . . . . . . . 3

4.1 Opera ting Environmen t . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 3 4.2 Disk Handling ........................................................ 4

4.3 Mounting and Dismounting Disks ......................................... 5 4.4 Cable Connections· . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 6 4.5 Grounding ................................................•......... 6 4.6 Tennination Resistor Setting . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 7 4.7 Select Plug Setting . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 7

5. MAINTENANCE PRECAUTIONS AND TOOLS. . . • . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 8

5.1 Maintenance Precautions. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 8 5.2 Tools .............................................................. 8

6. PERIODIC MAINTENANCE ..........................................•... 0. • • . 9

6.1 Maintenance Tasks. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 9 6.2 Maintenance Procedures. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .. 10

6.2.1 Confirmation of operation byCE disks ....................... 10 6.2.2 Track 00 detection confirmation ahd adjustment .............. 15

1. INTRODUCTION

This manual describes the operation, maintenance, and adjustment of the M2896-63 Double-Sided, Double-Density, 8-inch half-height Flexible Disk Drive.

2. RELATED DOCUMENTS AND DATA

SJ2-G3404D M2896-63 Standard Specification

TJ2-G4302D Logic Manual

TJ2-G430SD Technical Manual

TJ2-G4308D Illustrated Parts List

TJ2-G43l4A Packing Procedure

TJ2-G4311D M2896-63 Maintenance Parts List

- 1 -

3. MAJOR COMPONENTS

CARRIAGE ASSEMBLY

TKOO SENSOR ~SSEMBLY (See ~ig. 11)

DC POWER CONNECTOR (J 5 )

EXTERNAL SIGNAL

FRAME

STEPPING MOTOR ASSEMBLY (STM)

FRONT PANEL

CONNECTOR (Jl) (SPM)

Fig. 1 Major Components

- 2 -

4. OPERATION

4.1 Operating Environment

This disk drive operates properly in a normal office environment. 'rhe disk drive and disks may be damaged or operate poorly, however, if operated under the conditions except the following:

CD Temperature and humidi ty

Temperature

Relative humidity

41 to 109°P (5 to 43°C)

20 to 80% (non-condensing)

Non-Oper.ating

-14 to 122°P ( -1 0 to 50 ° C )

20 to 80% (Non-condensing)

(Wet bulb 84°P (29°C) maximum)

Shock and vibration

CD Dust

Less than 0.25 G (IO to 100 Hz)

Less than 2G

continuous vibration (IO to 100 Hz)

Be sure dust cannot enter the equipment; it damages the magnetic heads and recording surfaces of disks.

QD Temperature change rate

Less than 20°C per hour (when not packed)

* All values are general specifications.

- 3 -

4.2 Disk Handling

Especially be careful about the following items (see Fig. 2):

CD Do not put a disk near the equipment that radiates a magnetic field (radios, TV sets, motors, generators, and other electrical equipment).

GD Do not move magnetic materials near the disk (rubber magnets, round magnets for blackboara, screwdrivers, tweezers, etc.).

CD Do not fold or bend a disk under any circumstances.

GD Be sure to put the disk in an envelope and dedicated box when carrying or storing it.

CD Absolutely never touch a disk in the data area. Do not use alcohol, etc. for cleaning disk.

~ Do not place in direct sunshine, where the temperature is high, or where it is dusty.

CD Do not write on the jacket with hard-tipped pen except in the label area. Use only soft-tipped markers, such as felt-tip pens.

Fig. 2 Disk Handling

- 4 -

4.3 Mounting and Dismounting Disks

To mount the disk,

CD Open the insertion door by pressing the release pushbutton on the front panel.

CD Insert the disk until spring pressure stops and a click is heard. (See Fig. 3 for the disk label surface, etc.).

CD Close the insertion door by moving the door handle, preferably holding the handle at its center. Mounting of the disk is now complete.

To dismount the disk,

CD Release the head load and door lock, then

CD Press the release pushbutton.

The disk springs out of the insertion opening.

Cautions for insertion

CD When inserting a disk, do it slowly and hold the disk as shown in Fig. 3.

PUSH THE DISK A'l' MIDDLE OF THE OUTSIDE EDGE

DISK INSERTION DIRECTION ~ ..

DISK LABEL SURFACE

Fig. 3 Disk Insertion

- 5 -

4.4 Cable Connections

Connect cables as follows

.Turn off the power supply before connecting or disconnecting a connector, or moving the disk drive.

CD . Connect the DC power cable connector, J5.

GD Connect the signal cable connector, Jl.

4.5 Grounding

Either of two grounding types position. (See Fig.

CD 0

Frame ground and

Frame ground and

DC POWER CONNECTOR (J 5)

EXTERNAL SIGNAL CONNECTOR (Jl)

4. )

signal

signal

can be

ground

ground

selected by setting the jumper

are

are

tied --------- JFG jumper

separate ----- JSG jumper

JUMPER PLUG (JFG is jurnpered when drive is shipped from factory)

COMPONENT SIDE OF THE PCB

Fig. 4 Grounding Selection

- 6 -

plug

4.6 Tennination Resistor Setting (Daisy-chain connection configuration)

A termination resistor (TERMINATOR RT in Fig. 5) should be inserted into the printed-circuit board IC socket of only the disk drive to be connected to the farthest terminal of the signal cable. An M16A-150 OHMJ (Iwaki Musen) or 898-3-R150 (Beckman) shall be used as the termination resistor.

RIBBON OR TWISTED-PAIR. CABLE 3 m MAX. I

(DRIVE SELECT

SIGNAL

HOST SYSTEM

FDD NO. 1 FDD NO.2 FDD No.3

DC POWER

Fig. 5 Daisy-Chain Configuration

4.7 Select Plug Setting (Daisy-chain qonnection configuration)

RT TERMINA

FDD NO.

I I I I I I I

Insert select plugs into printed-circuit boards on loc~tion Dl according to the drive numbers as shown in Fig. 6.

FDD NO. 1 FDD NO. 2 FDD NO. 3 FDD NO. 4

o 10 01 0 0 0 0 -0 0 0 0 0 DSI

0 0 0 0 10 01 0 0 0 0 0 0 DS2

0 0 0 0 0 0 0 10 01 0 0 0 DS3

0 0 0 0 0 0 0 0 0 0 10 01 DS4

~ SELECT PLUG

Fig. 6 Drive Select Plug positions

- 7 -

5. MAINTENANCE PRECAUTIONS AND TOOLS

5.1 Maintenance Precautions

CD Be careful during maintenance work that dust does not get into the disk drive and that the heads, etc., are not damaged.

GD Do not proceed with maintenance work before confirming that the DC power supply is turned off.

® Do not mount or dismount printed-cir.cuit board connectors before confirming that the DC power is turned off. This is impqrtant to prevent damage to semiconductor devices.

QD Under any circumstances do not touch the disk surface or magnetic head surface by hand, or move magnetic material near them.

CD When using this drive in read-only mode (for example when using the CE disk), be sure that the disk is write-protected and the drive is in write-p~otect mode; otherwise do not attempt write operation to prevent destruction of written records.

® Never touch the steel band by hand nor adjust the related mechanism.

G) Do not apply undue force, impacts etc. to the head carriage assembly; it has been precisely adjusted. Do not loosen and readjust nuts, screws, etc. unless it is specifically required by procedures given in the manual.

5.2 Tools

Use only designated tools for maintenance or adjustments. Work will be difficult and drive function may be impaired if the specified tools are not used.

CD Special tools and equipment

~ Maintenance tester: PiN KEISAKI-J20944

@ Alignment disk (CE disk) : PiN DC342795-001

® General-purpose tools and equipment

~ phillips screwdriver:

@ Oscilloscope (with pro~e) :

- 8 -

No. 2

Triggerable, frequency band more than 10 MHz

CD Maintenance supplies

® Sy 1 von paper

~ Isopropyl alcohol (95% reagent 1st class)

6. PERIODIC MAINTENANCE

Parts and devices corrode and wear out during use over a long period of time. Periodic and special visual inspection, cleaning, exchange of consumable supplies, confirmation of operation, and other steps help to maintain drive functions and to discover trouble at an early stage.

The maintenance period is 12 months.

6.1 Maintenance Tasks

Maintenance items are shown in Table 6-1.

No.

1

2

Table 6-1 Periodic Maintenance Tasks

Item

Cleaning and visual check

Confirmation of operation by CE disk

Details and Method

1) Remove dust and corrosion from contact surface of Guide L, Guide R, Guide rod, sensors, and connectors.

2) Tighten the screws if anyone of them is loose.

1) R/W head radial alignment

2) R/W head azimuth

3) Index sensor alignment

3 Confirmation and 1) Track 00 output timing adjustment of Track 00 detection 2) Adjustment of TKOO sensor

- 9 -

Remarks

6.2 Maintenance Procedures

6.2.1 Confirmation of operation by the CE disk

Head and track number for confirmation items are shown on Table 6-2.

Table 6-2 Operation Confirmation

Item Head Track No.

0 38 R/W head radial alignment ~---------------- r-----------------

1 34

·0 76 R/W head azimuth ~---------------- -----------------

1 72

Index alignment 0 00 sensor

(Index photodetector alignment) ~---------------- r-----------------0 73

CAUTION: To protect the data, the CE disk should not be written on. Be sure the disk is write-protected and the write-protect circuit is operating.

(1) Read/write head radial alignment

CD Connect TP-WP to ground to prevent recording on the CE disk even in the event of a malfunction.

@ Mount the CE disk.

CD Connect an oscilloscope

Synchronous trigger EXT: +INDEX (TP-IX) polarity + DC mode

CHl/CH2: TP-AD3/TP-AD4 ADD (differential) AC mode

Vertical deflection: 100 mV/div

Horizontal deflection: 0.2 ms/div

- 10 -

® Seek Track 38 (Side "0"), Track 34 (Side "I")

® ®

~ When seeking Track 38 (34) from Track 00

~ When seeking Track 38 (34) from Track 76

Load the head.

The oscilloscope waveforms should be within the tolerances shown in Fig. 7 for both cases @ - 0 and @ - @.

Read/write head radial alignment is not acceptable when the readings are out of tolerance. Replace the deck.

A: AMPLITUDE OF PEAK {ENVELOPE}

B: AMPLITUDE OF VALLEY (ENVELOPE)

< INDEX TRIGGER STANDARD FOR CHECKING

B

A x 100 x a 0 ±85 wm

at 23 ±3°C and 50% ±5% RH.

NOTES: GY a is a coefficient supplied by CE disk correction guide.

QV Radial alignment readings may exceed the standard for checking slightly when checked with the drive in an upright position.

~ Do not adjust the radial alignment in the field, as the adjustment requires other procedures and standards.

~ Standard specification for checking is 60% on Dysan CE disk at 23 ±3°C and 50% ±5% RH.

Fig. 7 Read/Write Head Radial Alignment

(2) Read/write head azimuth

CD Connect TP-WP to ground to prevent recording on the CE disk even in the event of malfunction.

o Mount the CE disk.

- 11 -

@ Connect an oscilloscope.

Synchronous trigger EXT: + INDEX (TP-IX) polarity + DC mode

CHI/CH2: TP-AD3/TP-AD4 ADD (differ~ntial)

AC mode

Vertical deflection: 50 mV/div

Horizontal deflection: 0.2 ms/div

® Seek Track 76 (Side "0"), Track 72 (Side "1").

® Load the head.

QD Confirm that oscilloscope readings are similar to the patterns and within the tolerances shown in Fig. 8.

Read/write head azimuth standard for check: 0° ±18'

(V Read/write head azimuth is not acceptable if the readings are outside the tolerance. Replace the deck.

- 12 -

0'+18' D

D

Fig. 8 Azimuth Burst Patterns

- 13 -

(3) Index sensor alignment (index photodetector)

CD connect TP~WP to ground to prevent recording on the CE disk even in the event of malfunction.

o Mount the CE disk.

CD Connect the oscilloscope.

Synchronous trigger EXT: +INDEX (TP-IX) polarity + DC mode

CH1/CH2: TP-AD3/TP-AD4 ADD (differential) AC mode

vertical deflection: 500 mV/div

Horizontal deflection: 100 lls/div

® Load the head.

GD Readings on the oscilloscope shall be within the following tolerance:

t = 700 ±200 lls (for both Track 00 and Track 73)

GD The index sensor alignment is not acceptable if readings are outside the tolerance. Replace the deck.

+INDEX (TP-IX)

AD3/AD4

TRACK 00

t AD3/AD4

TRACK 73 II I I

I .. t

Fig. 9 Index Sensor Alignment

- 14 -

6.2.2 Track 00 detection confirmation and adjustment

(1) Confirmation of Track 00 output timing

CD First, confirm that the read/write head radial alignment is within tolerance.

NOTE: Perform read/write head radial alignment check according to paragraph 6.2.1-(1).

(]) Mount the disk.


CHI: TP-STP

CH2: TP-TKOO

Synchronous trigger: +STEP (TP-STP)

Vertical deflection: 1 V/div

Horizontal deflection: 1 ms/div

GD Repetitively seek Track 00-01 and confirm that the TP-TKOO timing is within tolerance. (Refer to Fig. 10.)

Standard: within 2.7 ms

NOTE: The step time (track-to-track time) of the head carriage

assembly must be 3~~·2 ms.

CD Confirm that the output of TP-TKOP is within tolerance:

Track 00: Above +2.5 V

-Track 01: Below +0.5 V

+STEP (TP-STP)

TKO!

----+TRACK 00 (TP-TKOO)

n TKOO

Less than 2.7 ms

-

n TKO!

wi

Fig. 10 Track 00 Detection

- 15 -

thin 100 11s

(2) Adjustment of Track 00 (TKOO) sensor

Q) Perform steps Q) through 0 in Confirmation Procedure (1).

GD Turn the setscrew of the Track 00 sensor counterclockwise to loosen it (rotate 1/2 to 1 turn).


CHI: TP-STP

CH2: TP-TKOP

Synchronous trigger: +STEP (TP-STP)

Vertical deflection: 1 V/div

Horizontal deflection: 1 ms/div

® Repeti ti vely seek Track 00-02.

GD Move the Track 00 sensor right or left (toward Track 00) or Track 76), adjust to the standard level, and tighten the setscrew (see Figs. 11 and 12) .

Standard: TP-TKOP timing: Tl = 4.0 to 5.0 ms T2 = 6.0 to 8.0 ms

TP-TKOP output: Track 00; +2.5 V or above Track 02; +0.5 V or below

NOTE: Move the Track 00 sensor right or left for adjustment while pushing the sensor toward the padded surfaces of the frame.

+STEP (TP-STP)

(TP-TKOP)

I t- 3 ms

-----!fUl fUl

f-Tl T2

Fig. 11 Track 00 Sensor Adjustment

- 16 -

HLMG ASSEMBLY

FRAME

o /

SENSOR FLAG

Fig. 12 Detail of Track 00 Sensor

- 17 -

TKOO SENSOR /OSITION

INDICATOR

TKOO SENSOR ASSEMBLY

TJ2-G430SD

ILLUSTRATED PARTS LIST

PARTS LIST OF PCA, NAFHG (PIN DC447248-03-D)

Reference Part Number Description

Qty Designation per PCB

DC447093.;..G01 PWB,NAFHG 1 * * (See page 7)

E1 IC-31-2803 IC-SOCKET 1 YAMAICHI (JAPAN)

P7 IL-2P-S3FP2-1 CONNECTOR 1 JAF (JAPAN)

P3 65625-114 #6 or CONNECTOR 1 BERG -214 #6

P2 PS-32PA-D4LT1-A1 CONNECTOR 1 JAF (JAPAN)

B5,C1,C1,D1, 00-8261-0232-10-854 PIN, MODULE 16 ELCO D2,D2,D3,D4, INTERNATIONAL D4,D9,E2,E6, E6,E8,F1,E8

A1,B7,C1,C2, 00-8261-0333-10-854 PIN,MODULE 14 ELCO C3,C5,C5,D1, INTERNATIONAL

I D1,D4,F2,F9, F9,C3,D1,D2

D1,D2 00-8261-0632-10-854 PIN,MODULE 2 ELCO INTERNATIONAL

D1 00-8261-1233-10-854 PIN,MODULE 1 ELCO INTERNATIONAL

Al,Cl,Cl,Cl, 00-8261-0282-00-878 PIN,MODULE 18 ELCO C3,C4,C6,D1, INTERNATIONAL D1,D1,D1,D1, D1,D1,D3,D3, . F2,F9

IC D4 M53202P IC,DIGITAL 1 * * * (See page 7)

IC C3 E8 M53204P IC,DIGITAL 2 * * *

IC B5 C9 M53206P IC,DIGITAL 2 * * *

IC C5 M53208P IC,DIGITAL 1 * * *

- 1 -

(con)



IC E2 M532I4P IC,DIGITAL I * * *

IC C2 D2 M53238P IC,DIGITAL 4 * * * D3 E9

IC D9 M74LS02P IC,DIGITAL 1 * * *

IC D5 C7 M74LS04P IC,DIGITAL 2 * * *

IC E3 M74LSIOP IC,DIGITAL I * * *

IC B4 DIO C4 SN74LS74AN IC,DIGITAL 3 TEXAS INSTRUMENTS

IC E4 E5 M74LSI23P IC,DIGITAL 2 * * *

IC D8 M74LSI93P IC,DIGITAL 1 * * * IC CIO M74LS393P IC,DIGITAL 1 * * *

IC C6 M74LS08P IC,DIGITAL 1 * * *

IC A6 MC3470P IC,LINEAR I MOTOROLA

IC EIO ULN2003AN IC,LINEAR 1 TEXAS INS'l;'RUMENTS

IC B6 SN75472P IC,LINEAR 1 TEXAS INSTRUMENTS

IC FI F2 SN75473P IC,LINEAR 2 TEXAS INSTRUMENTS

IC E7 NE555P IC,LINEAR I TEXAS INSTRUMENTS

IC B9 AS-14I2-02 IC,HYBRID I * *

IC A9 AS-14I3 IC,HYBRID 1 * *

IC F8 722053A IC,HYBRID 1 * *

IC F5 J20037 IC,HYBRID I * *

- 2 -

(can) -Reference

Part Number Description Qty

Designation per PCB

IC D6 MB14079M GATE,ARRAY 1 * *

C12,13,14,18, RPE122-127C103K50 CAPACITOR,CER. O.OlfJF 27 MURATA WORKS 28,29,45,46, 50V ±10% (JAPAN) 47,48,49,19, (CER.=CERAMIC) 101,102,103, 104,105,106, 107,108,109, 110,111,112, 113,114,115

C33 DE1105E472Z1KV CAPACITOR,CER. 4700pF 1 MURATA WORKS

lkV +80% (JAPAN) -20%

C3,4,50,51 RPE122-127CH471J50 CAPACITOR,CER. 470pF 4 MURATA WORKS 50V ±5% (JAPAN)

C8 RPE122-127CH151J50 CAPACITOR,CER. l50pF 1 MURATA WORKS 50V ±5% (JAPAN)

Cl1 RPE122-127CH101J50 CAPACITOR,CER. 100pF 1 MURATA WORKS 50V ±5% (JAPAN)

C36,60,7l RPE122-l27CHlO2J50 CAPACITOR,CER. 1000pF 3 MURATA WORKS 50V ±5% (JAPAN)

C34,61 RPE123-127F155Z25 CAPACITOR,CER. 1.5fJF 2 MURATA WORKS

25V +80% (JAPAN) -20%

C7 RPE122-127CH331J50 CAP AC I'I'OR , CER. 330pF 1 MURATA WORKS 50V ±5% (JAPAN)

C1 f 2 MFLP5002-223K CAPACITOR,PLA. O. 022~IF 2 MATSUO ELEC-50V ±10% TRIC (JAPAN) (PLA.=PLASTIC)

C5 MFLP5002-222K CAPACITOR,PLA. 2200pF 1 MATSUO ELEC-50V ±10% TRIC (JAPAN)

C6 MFLP5002-102K CAPACITOR,PLA. O.OOluF 1 MATSUO ELEC-50V ±10% TRIC (JAPAN)

- 3 -

(COll ) , ... ~~



,

C9 242M2502-475M CAPACITOR,TANT. 4.711F 1 MATSUO'ELEC-25V ±20% TRIC (JAPAN) (TANT.=TANTALUM)

CIO 242M1602-226M CAPACITOR,TANT. 2211F 1 MATSUO ELEC-lOV ±20% TRIC (JAPAN)

C15,26 242M3502-155M CAPACITOR,TANT. 1.511F 2 MATSUO ELEC-35V ±20% TRIC (JAPAN)

C40 242M1602-106M CAPACITOR,TANT. lOllF 1 MATSUO ELEC-16V ±20% TRIC (JAPAN)

C24,30 242MIOO2-156M CAPACITOR,TANT. 1511F 2 MATSUO ELEC-lOV ±20% TRIC (JAPAN)

C22,31,32 242M3502-225M CAPACITOR,TANT. 2.211F 3 MATSUO ELEC-35V ±20% TRIC (JAPAN)

C21,23 244M1602-335M CAPACITOR,TANT. 3.311F 2 MATSUO ELEC-16V ±20% TRIC (JAPAN)

CLI CSA6.00MS OSCILLATOR,CER. 1 MURATA WORKS (JAPAN)

Dl,2 DC447733-GOI DIODE, PAIR 1 * *

D5 NDPl15 DIODE 1 NATIONAL COMPONENT INC.

D12 SRIFM-2 DIODE 1 * * *

D3 MZ312 DIODE, ZENER 12V 1 * * *

D4 MZ306-B DIODE, ZENER 6V 1 * * *


DIO RD3.0EB2 DIODE, ZENER 3V 1 NEC (JAPAN)

Dll RD15FB DIODE, ZENER 15V 1 NEC (JAPAN)

D19 RD6.8FB DIODE,ZENER 6.8V 1 NEC (JAPAN)

- 4 -

(con)



Ll,2 TP0410-331J INDUCTOR 33011H ±S% 2 TDK (JAPAN)

L3,4,S TP-0206-101K INDUCTOR 10011H ±10% 3 TDK (JAPAN)

R81 NLl/4J8201F RESISTOR 1 SEF (JAPAN) 8.2kS"t 1/4W ±1%

Rl,2 NLl/4J6801F RESISTOR 2 SEF (JAPAN) 6.8Jru 1/4W ±1%

R4,S NLl/4J4700F RESISTOR 2 SEF (JAPAN) 4700 1/4W ±1%

R6,7,28,70, NLl/4J1001F RESISTOR S SEF (JAPAN) 71 lk.Q 1/4W ±1%

R9,19,26,27, NLl/4JlS00F RESISTOR S SEF (JAPAN) 82 ISm 1/4W ±1%

RI2,22,S3,S4 NLl/4J2201F RESISTOR 4 SEF (JAPAN) 2.2~ 1/4W ±1%

RI3,IS,18 NLl/4J3301F RESISTOR 3 SEF (JAPAN) 3.3~ 1/4W ±1%

R14,30 NLl/4J4702F RESISTOR 2 SEF (JAPAN) 47J<r2 1/4W ±1%

R17 NLl/4J1200F RESISTOR 1 SEF (JAPAN) 120D 1/4W ±1%

R20,21,23,24, NLl/4J4701F RESISTOR 16 SEF (JAPAN) 2S,33,40,43, 4.7kS"2 1/4W ±1% 4S,46,60,48, 11,80,83,84

R38 NLl/4JlS02F RESISTOR 1 SEF (JAPAN) lSKr2 1/4W ±I%

R37 NLI/4J2701F RESISTOR 1 SEF (JAPAN) 2.7J<r2 1/4W ±1%

R8,29,S9,72 NLl/4JlS01F RESISTOR 4 SEF (JAPAN) 1. skJ 1/4W ±19q

- S -

(con)



R31 NL1/4J3902F RESISTOR 1 SEF (JAPAN) 39kst 1/4W ±1%


R57 NL1/4J5601F RESISTOR 1 SEF (JAPAN) 5.6kst 1/4W ±1%


R51,52 NL1/4J3900F RESISTOR 2 SEF (JAPAN) 390st 1/4W ±1%

R55,56 NL1/4J3300F RESISTOR 2 SEF (JAPAN) 330st 1/4W ±1%

"

R42 NL1/4J1800F RESISTOR 1 SEF (JAPAN) 180st 1/4W ±1%

RM2 PSR1.5A301J RESISTOR, MODULE 1 IWAKI MUSEN 300st ±5% (JAPAN)



RM5 PSR1.5B821J RESISTOR ,MODULE 1 IWAKI MUSEN 820st ±5% (JAPAN)

RMl M16A-151J RESISTOR ,MODULE 1 IWAKI MUSEN 150st ±5% (JAPAN)

R10 3321P-1-503 RESISTOR ,VARIABLE 1 MURATA WORKS (JAPAN)

R34 3321P-1-202 RESISTOR,VARIABLE 1 MURATA WORKS (JAPAN)

R35 3321P-1-103 RESISTOR,VARIABLE 1 MURATA WORKS (JAPAN)

- 6 -

(con)

Reference Part Number Description Qty

Designation ;per PCB

TR1 MPF970 TRANSISTOR,FET 1 MOTOROLA

DC446629-001 BRACKET ,CONNECTOR 1 * * *

J5 1-480271-0 CONNECTOR 1 AMP INC.

60618-1 CONTACT ,CONNECTOR 5 l\Ml? INC.

DCPS-112002-006 SCREW,PAN HD,WASHERED, 2 M3 x 0.5 x 6BS

UL1061';WG24 (7)-2 WIRE ,VINYL O.lMR * *

UL1061AWG24 (7)-0 WIRE ,VINYL O.l~MR * *

* This parts list applies to the PCA, NAFHG part No. DC447248-03-D.

* * Means "Custom-maoe for MELCO Computer Works".

* * * ~11eans parts made by MELCO Semiconductor Division.

- 7 -

ex>

L4 +SV .........4..---...oJ L I "-~_-",,,Rr.J4\r-_-4~M __ -+< c,o~"tz+l :be. 45 :~R61..C4 .LrC3 •••

.. L2 ~5 ~~~~~--~~----~

® (4/4)C24=.

II I~ 15 41 31sT IHEAO +5V -E~ r-- 10 (AS-1412-02)

P3-A7 ,... ...., f6», r{-~~ RM" .. I RF~

L.-~~4-~~~~ ______ ~0~.2 __ ~7iRl"AI RIW'2P5~----------~~~~ ...... A 06

P3- A6 ....... ...., L:,~J 2 I I 181 51 13 12 6i~. 7 8l~ 9

L-__________ ~~--~p~l~----~8iRA2~WI~6~----------~~~~~ . .,.. (MC 3470)

r±- 1.......-1", I RIO 3 C1

7i- C~L. WRITE JI-2 SE ,. I.

CURRENT SW' ::Orl--t+-...n R58 l ~l ~ =)~ ...c ,.... 2 .~RII ;~RI2 S I ~ rrr C.~ R9 . ....

i5 ~ ., )~S G C36 't'+SV 01"':"6 I C5 H~ 00 C03 • 0 B05 ~ I - 2""" TR I 9 .... 8 +SV ~7~+5V -"

G 0 ""(04) ~14,.Jf\ (~6) C 3 tho J1-24nY".'t'

(NOT USED>? ,141-_&:. DOS ~1~ +24V-AN OSE~ MFM~ "Y I ~ - ,I ~

- 6 14 (S .: 0 -4) 2 5' - 6 SN 4 9 7 L 3 I '~

JII 1

.--~-""Xl ...... --'"' ·~N5\r1---"10~01 RIWI2F3-------, !l?~

~,.-.-_r5"rA-+-..Jf!V\.7r...Zr----'I..,1 W02 RlWII1-4"--___ -.., _'1t~ B09

~· .. --+-~~r_~1~4LC ZO-K~ ~~7 '" ~['D4

't' .9 15 or "+:-::2:-:4-:"":V--A-:-:N;.;-.:qwE ,ZO -At=-

:~CII t-----+-------,-:;I3=-t,V+ GNO f!!-~

MFM 9 ... rtW -.... 009 C09

2 PST (2/4) +1 ~s v ,......::: 0 aD 009 ( -06) OA r-o .,JQ C ac 6 5 4 (LS02) B05

- - -l 005 - - ~ B aB 2 6 ) ___ 1-------~f__.+......:.1..:..14 ..... ~:)_I:.::0'_t--J r2 DR'I OR2rl ~'"

RISI 'Y

+TKO (214) 9~Li-1- ~A aA~ (LS02) (~6) -COO (2/4) (~04 IJ,. 008BO~ +SV +24V-~; (AS-,1413)

P3 -AS" -~~CI2 I

P3-A4 -0

P3-A3 " -

P3-A2 .-. ~

P3-AI .-. ~

I HEAD

P3-B7 ()

P3-B6 ,... ....,

P3-B5 -CUO (214) L..!.l L CA~ f

RMI I ~OIU r---, 4 5 ILS 193) I ~ 7 r - - -~-'-t-=S'---t""'-' ~ +24V ER I FI6=--...... __ -;-+-+-"'--"'-~

P3-B4 " -P3-B3 '"'

~

,... L __ ~ E02 B04 2111 BO,6 ,4 - +SV -WRITE JI-38 3 -" 4 II T C 8 ~;t'

CI4::= =~CI3 + S V ~ NC ERO..,.15=--+-----....

. t 1'r I +SV C TI ~6=--..... ----++-=-....::.:=_<:,)

01

R/W-O

R/W-O

ER-O

GNO-O

CT-O

GNO

GNO

I I R/W-I

R/W-I

ER-I

GNO-I

CT-I

+ 5V..f... 13.1 ,.. 4 lli1 0 S N 9 6] ~

DATA .. ~) ~R L___ r-- ~ 13 ILS74) (472) 3L.. __ -+ ____ ....I 'R5S ~ 12 5

.---4-~~----------..:.=...I R56 .. !" L.-___ -:..:.;. =lV+ CTOF---------~ P3-B2 ~ ( KEY)

I ~054 A09 RM7~ 12/4) BOS . JUY EG I 13 WP EA214 L-::---* P3-B I {)GND

-PST ....:..:..:.....:..!..-~~_+_+_+II-i~-'1 ... 3I<1CO~2 (LS 4) 11 ..... -101f!...· tl ~ J. -"A il. -WP (4/4) ('0~6) 5~5 6T ~!8 'Y T "

( SIO) WP ,~IOEO L __ ...1

L :t. 12 C07 WG - 1(06) 05"Y

. EA I ..,.1.:-1 -------' 11~~0210 ) II 13 .,.... 1j!:;"'2 3 HSO CT R7

(14) NP (02) ~~53f +C26 C07 Cos) B05' Oil 05 i ~t:I I I' 1-..... 2 3 .... 4 4 I1S I GNp 8

._---oJ . 9~SHota. I~ ~41' r (b6) "

.

. ~ R83 1 L .1:!!J BYCCfj., 15 CHS-1----12-D-0--3-1-1----~.......;~ 45 E03

6 +-V In,,' - , ~ TC7t'" E04 C 12 .--_____ -+-'_....----:.;13=-ll~.r

JI-48 ':"'READ

J 1-46 -READ

+OS (2/4) (4/4)

DATA

DATA

'-"';;;':'-"';---++-t-+-+---:3~(LSI0) * ~~~_~~ , ~OE (38) J I-50 ':'WINDOW @

J ERG

(214)

HIS (214)

® (2/4)

I

II 9~6 10

(LS08)

(2/4) -WG

IREAD/WRITE CIRCUIT (1/4)\

(214 4/4) ® ~-------~~ + STP -, °EI

.---- ------~rjt=_=_~o-~~)--~=_ _______ ==J(lJ3~/~4=)L- - 0 L MG ----------.. ------- - 1 ,2 <314'_ +lNUSE

-WG -! _1/_4)_~ 1 ------ Ji- -r- "14 ;:~ -~S JI - 36 ~_=2-........ r---- Ia STP ,I ====t1~===----__ =====J(~3LL~~4~) © -STEP > ~-. (14) 009 1~5 3 DLMG r (4/4L +SIDE SEL

! ·~lr-- 13 _~12~-' 13 1 ~ I (1/4L +os +5V~'r- II(LS02) II 2 10e , (3/4, -HLD +L5RvM::~ ~b_T >1LO I Ii r ~_ _~ :::: =~~~ ..,-- ._- +5V 2--,,?9

3 IN USELE~ , 11/4 3/41 PST.

JI-16 Qo

2 4 J ~I I +5V r ~ 1 -INUSE ;> - - -, ;., 9 EA.::'",-,8~_2"'DS N~ I (38) -'1 V ~ I uL Il • "r ,. ~ \ HI 14' 010 E08 - .1 _ TI lLJ

+5Vo/ ~- ---' Ll-J +5,... iV

_ ..... AJ'v--.. 3,T R C~ ~IQ. ~ _? II 't

010

e07 HR' R2

RM I §=8 IV -R'2; '--,ii- I 04' ~~ i3~ '" C 10 L-J -HOLD 1 J I - lew? ! ~LS74) I + (U;04) ~OOI

002

9 MOTOR ON ? I C PS ~.- I I RI" *C15 IG4

20CI

OC>;';j

T:f~~~}8 r{~® l:::~ J r P~ s=- "lc~ .. +-5l,VJbR--'2:.....~0-b(~:~:-):-5'V-l--~O'-~'.l~~Jz-.. ~! I -LW-+-+-t--t---7_'"_I'~.I.._ ~13_E_0_e_I ... ~~11Ir--=-~~~:II~T~~~3M:;, RM I X ::1[ .5.D

4

----, DL • <I>- 'Wv I ,rI; _ 1 (0'4) 1 g

e07

e

U"" 1 (02) l...O·+-1LL Y IC992---1 I ,,.. II (LS04)(4/4)

MI M2 BI QJ~04 9009 ~ 23, _ 0 11/4,3/42.... -PST MOTOR > J 1-4 .!.r;;-..oJ 1.[0\ l 1 8 10 lOG, - J PST CLK ~ _ (1/4) ERG

START - r::-L==T18 ~ ~ 1102' ILS02' - G ERG~ HIS

~~ CUO HIS r---® (4/4) ~- ~ COO ~!'.O L ___ G _________ ~;_;----l, 03 I (MB 14079) ~~Y-I}-- 002 5 C 6 ! ~ WRG rHO R27 10 8 ---, p

A-\ ... -:.w~-1""'-----9:J (~4 ) L-__ ST e07 + 5 V dr I 9 +5\1 2 ' 18 05:'._1381 E02 MO - R24 • 006 .2 ~

t-F<> !i ()J L5-<{> 6 1....., .0-~~ I .2,HLO (LS04) 6

- J 114' _ C50 C51 -DRIVE ~ 2B -2_ 5002

6

_2USR ttl-EC T I ! I ,---l.!. EUR 3 SEL Len" -'1. 1c.J+5V .40 R25 4 yt.,...:'--__ rlr tJ04h

- OR I VE J 1- 28 I '-=-::J 4> •• +5V ¢>- -m (38) E02 .2 01 R 1,0 I 1314'_

SELECT 2 >- 3B ..:.3t:J ----!..cI.p~.l2~+_t_---,__:_:_-i71i7 IXR USFr19 _1 ____ ---,-"-__ ~..I' U .26 +5V I 114' 1

-DRIVE JI-30 -...J .or--"~ MS ,--......... --~SEL SELECT 3 ? ~ _2.-b -'---_L ..... 'V~ ~ 2

r---;'5 +~ ~ ~ IXH

- J ~ ~ 1.. ___ ..1 't' -OR IVE J 1-32 52 53 ,..!§ SO,

5 E L E C T 4 .> r -.., ,.....,LJ.. __ R..."M_I~c)0~3L ...... ---t1r-71 HSL ~-l..£:2_~-r--v I~.I 9.'" 8

J 1- 14 L ______ +_

5

_

V

_'Y_-_-·~L_R -_'M_'~=I:::: -Y . .I=J=~::- 1041 I I~S :JOL -SIDE SEc .> •. L _ _

DIRECTION .iJ~i-~3t=4==================================================================== (SIDE SELl ~ (~~'/~4~)================================ _____________________ .. __ - IX (4/4)

+SOK (~4) - TKOP

'04

12 (3~ '0 I 1101 r-- --

19 (3~ +HUO HU Dr-

~4/4l Y 9 ,'_5. .. ~ .. __ -ROY RD

oj ('04) TK

(1/4 J( 414) +TKO

8 ~

(2/4) I fCoNTRO~. Cl RCUIT

~ 04 (214)

(214)

+ 24 V - P W <t>..--__ .....:p..,:2=--....:A;;:,.;�:.,::°O SP IN 0 L2 4 ...-'-_--'P ..... 2~---'B .... I'""'"41 0 SP I N 0 L OV J

L---------------~------------------------------~~P~2=-~A~I~~STM-(G) ~~~~2..~>_...l~~h.!.i..------------------------------,------------------------IP~2~-:_jA32~ - STM - (B) I~ r------------------------------------_-P~2~-~B~I~-STM-(Y)

,...------------------------------,~~------~P~2--~B~2~-STM-(R) C09

r------~----------------------~3~-4~--~P2-B3 +STM-CTI

+5V

+5V 011 9 R30

R84 (06)

~~12=--_.J\f\1\r-----W +5 V

( 4/4 )

PST ~(£2/~4~) __________________________________ ~ ,OiSK-OUT- -N2 P7-

I ..... LRED) P7 - 2 - PST ~(2~/~4!.!.) __________________ _____,

+ 5V

+5V

- 0 S (214)

+ ST P (214)

- H L 0 (214)

+HUD (214)

-DLMG 1(£2~/4~)------------~~=====-~t>~--1_--~~~tt

©

+ 5V R39

(214)

+ C40

2 6 5

E07

2.6 S

3

7

l~ tE~~ ~N ___ NQ.;

7 P2-A14 +HLMG

~-------4-~6,+24V~TN~9-----~

6

7

6

CT • ~--------....:8~+5VHLMG 14 P2-A16 -HLMG

HLA 12 OUTI IN I ~-----~P=-2--=-B....:13~ HLSN

P2-A13 HLSP ....------....;.4<l1LOAD I N2 2

GA 5

1

R34 3

(J20037 )

+24V-PW

P2-B16 -DLMG

+ 5V R42

r------------------------~~------~------------~--~~~U+INUSE

® + INUSE

(214) (NE555)

I MOTOR ISOLENOID DRIVE CIRCUIT (3/4) I

(w. P .) LEO -A ("\P2-A6 ...,

E04 5 6 .... (LS04)

PT R- C P2-A5 ~~~ ____ ~~2 QI~5~~ ______ ~ ________ ~

cr-=-.=..:. ___ -+_4-'-1 ~ WP PT R-E "P2- B7 ...,

LED -K "P2-B8 -

IX

r----ti.Q ,J,.GNO

(INOEXO/I) P2-A7 R82 LE 0 - AO ••

PTR-C 0/I("\lrP~2~-~A~8~~~~ ..., ~

PTR-EO 8 P2 - A9 018

PTR-EI O~P~2~-~B~10~ __ -+~

9 02 6 1 ~9 R43 +5V

.~~) A. .. 't"

15

7 F 08

IXO F7. 9 II 03 12 010

II T C 8

-MOTOR ON . 91 )~8 ___ ~ ________ P=2_-_A_I~I~

10 004

~r-______ ~ ______________ ~r--(38) 9~02 e 101~ I

+5V +5V ~~

(38)

812C02 13 II

(38

........ RV\4fvS __ --<nA. + 5 V ••• 't'

P2-A15

,IT B 15 0 GNO IN USE

2S LEO-KI OP2-B9

(T K 00) ().P2- A4 LEO-A ...,lr~~~---+~

8 r k:h ~

GNO

E08

10

120 S N 9

C04 f-f- ITRCS

~ JID s N~

Q-ilt--....:Jc-I_-_I_O __ - T WO S I 0 E J

PTR- C OP2-A3

PT R-E "P2-B5 ..,

LE O-K "P2-B6 ~

r." ® ( 3/4)

ROY ( 2/4)

+SIOE SEL ( 2/4)

® ( 2/4) ( 2/4)

+ TKO ( 2/4) PST

+5V ().J5-5 .., J5-4

N .C)O C46

GNO ,...J5-3 ...,

GNO " J5-2 ...,

0413

6 3..... 4

14 QS04)

@ (3/4) TKOP

5EQ9 1722053A) - 6

f 7h~

C03 04 3" 4 3 T C~ 0 C

..... R L-.fo I J I - 12 (04) ~C'l--< ""r-,,:,,;,---==-. -DISK CHANGE

I ~ (~4) ~_----l 00 0/4,214) r- @

l 9 004

s1ft-~;:.L.. (02)

RML:..J J,

~ ,---(LS74)

10 I '\ S

RS 9 COS

(OS)

R

QTPG x 7 1 BS I

~-+----~--~~--------------~----+--~ 0

1 I - B ~ 0 I 002 I C47:: C31 C32 C4S:~ ", '\.. 3 I A' "">..1 J I - 20

+24V "JS -I + L5 + +51 R46 ~------2~LI3)8~----I~",,0D-1 _jr.-----~--..;;..;;.. v JSG JFG I +24V-AN 't' ''IV 1~52

GNO 0 J5 - 6 -:~' L...----------------'-<I,....~=-------:~~OrO-3~3:....---~J!JIl...:.-~4~4. -WP

M>JI-h~~ C33 L...--------·~~1_~j==========(:L:S:0:4:)==~1=L=~:3j~~0~0~3~~~-+24V-PW =-!. 6 ~1-42 +24V FG,~ ~ -TKOO

A L3 TKOO~ -ANL RS9 ~~ __ =~~ ____________________________ ~ __ ~~~ _______________________________ (_3~S_) __ ~(~I/~4~)_

~ I ,.Jr I (2/4) @ 03 I C34i C9,J, !C49

RI

HRIHY R,£,Y

~2 -J2T ) II l ./ '0 lr.-____ ...:J;..:.I_---=2'-=2. - READ Y

RR r (3S)

R~5 A.. + 5V ,. 't'

-INDEX

@

POWER / DETECT CI RCU IT (4/4 )

ft-----n I P:I I

~'IP'----. -~'7 19J •• I:I-____ ~.7

el2

o FG

A 8

J..NAFHG

•

. ~ NO 0 E2 E. HY HR IEm

o 0 0 01JElQl CL. 00 0 14 8 t;

08 ?:M:l3Z04P 7: I ~ IOCI030 I IOIMOOI ~

c

PIN OC447248 - 03 -0

'" on o N N ,..

c. 00

N CL

"""'~-=--0""1 ~ ~ . 00

012 "'814079101

~rIeJ:===:!l.-o-1--!; ~ ~ hr----------------~~

JI

o E

,.. '" o o

2 R34

4

0-

MFM09 .. :lVO 0

0

'" GO :s 000 IE 010

o 0 s~:

r----O

F

10

9

8

7

6

5

4

3

2

I PC B (PCA, NAFHG) COMPONENT LOCATIONS

PARTS LIST OF PCA, NAFHG (PIN OC447248-03-E)

Reference Part Number Oescription Qty

Oesignation per PCB

OC447093-G01 PWB, NAFHG 1 * * (See page 19)

E1 IC-31-2803 IC-SOCKET 1 YAMAICHI (JAPAN)



P2 PS-32PA-D4LT1-A1 CONNECTOR 1 JAF (JAPAN)

B5,C1,C1,01, 00-8261-0232-10-854 PIN, MOOULE 16 ELCO 02,02,03,04., INTERNATIONAL 04,09,E2,E6, E6,E8,F1,E8

A1,B7,Cl,C2, 00-8261-0033-10-854 PIN,MOOULE 14 ELCO C3,C5,C5,01, INTERNATIONAL 01,04,F2,F9, F9,C3,01,02

01,02 00-8261-0632-10-854 PIN,MOOULE 2 ELCO INTERNATIONAL

01 00-8261-1233-10-854 PIN, MOOULE 1 ELCO INTERNATIONAL

Al,Cl,Cl,Cl, 00-8261-0282-00-878 PIN,MOOULE 18 ELCO C3,C4,C6,01, INTERNATIONAL 01,01,01,01, 01,01,03,03, F2,F9

IC 04 M53202P IC,OIGITAL 1 * * * (See page 19)

IC C3 E8 M53204P IC,OIGITAL 2 * * *

IC B5 C9 M53206P IC,OIGITAL 2 * * *

IC C5 M53208P IC,OIGITAL 1 * * *

- 13 -

(con)



IC E2 M53214P IC,DIGITAL 1 * * *




IC E3 M74LSI0P IC,DIGITAL 1 * * *

IC B4 DI0 C4 SN74LS74AN IC,DIGITAL 3 TEXAS INSTRUMENTS

IC E4 E5 M74LS123P IC,DIGITAL 2 * * *


IC CI0 M74LS393P IC,DIGITAL 1 * * *


IC A6 MC3470P IC,LINEAR 1 MOTOROLA

IC EI0 ULN2003AN IC,LINEAR 1 TEXAS INSTRUMENTS

IC B6 SN75472P IC,LINEAR 1 TEXAS INSTRUMENTS

IC Fl F2 SN75473P IC,LINEAR 2 TEXAS INSTRUMENTS

IC E7 NE555P IC,LINEAR 1 TEXAS INSTRUMENTS

IC B9 AS-1412-02 IC,HYBRID 1 * *

Ie A9 AS-1413 IC,HYBRID 1 * *


IC F5 J20037 IC,HYBRID 1 * *

- 14 -

:.:on) 'a ••




C12,13,14,18, PRE122-127C103K50 CAPACITOR,CER. O.Ol1JF 27 MURAT!\. WORKS 28,29,45,46, 50V ±10% (JAPAN) 47,48,49,19, (CER.=CERAMIC) 101,102,103, 104,105,106, 107,108,109, 110,111,112, 113,114,115


1kV +80% (JAPAN) -20%

C3,4,50,51 RPE122-127CH471J50 CAPACITOR,CER. 470pF 4 MURATA WORKS 50V ±5% (JAPAN)'

C8 RPE122-127CH151J50 CAPACITOR,CER. 150pF 1 MURATA WORKS 50V ±5% (JAPAN)

C11 RPE122-127CHIOIJ50 CAPACITOR,CER. 100pF 1 MURATA WORKS 50V ±5% (JAPAN)

C36,60,71 RPE122-127CH102J50 CAPACITOR,CER. 1000pF 3 MURATA WORKS 50V ±5% (JAPAN)

C34,61,22, RPE123-127F155Z25 CAPACITOR,CER. 1.51JF 6 MURATA WORKS 23,31,32 25V +80% (JAPAN)

-20%


Cl,2 MFLP5002-223K CAPACITOR,PLA. O.0221JF 2 MATSUO ELEC-50V ±10% TRIC (JAPAN) (PLA.=PLASTIC)


C6 MFLP5002-102K CAPACITOR,PLA. O. 0011J F 1 MATSUO ELEC-50V ±10% TRIC (JAPAN)

- 15 -

(can)



C9 242M2502-475M CAPACITOR,TANT. 4.7lJF 1 MATSUO ELEC-25V ±20% TRIC (JAPAN) (TANT.=TANTALUM)

CIO,30 242M1602-226M CAPACITOR,TANT. 22lJF 2 MATSUO ELEC-10V ±20% TRIC (JAPAN)

C15,26 242M3502-155M CAPACITOR,TANT. 1.5lJF 2 MATSUO ELEC-35V ±20% TRIC (JAPAN)

C40 242M1602-106M CAPACITOR,TANT. 10lJF 1 MATSUO ELEC-16V ±20% TRIC (JAPAN)

C24 242M1002-156M CAPACITOR,TANT. 15lJF 1 MATSUO ELEC-10V ±20% TRIC (JAPAN)

C21 244M1602-335M CAPACITOR,TANT. 3.3lJF 1 MATSUO ELEC.., 16V ±20% TRIC (JAPAN)

CL1 CSA6.00MS OSCILLATOR,CER. 1 MURATA WORKS (JAPAN)

D1,2 DC447733-G01 DIODE,PAIR 1 * *

D5 NDPl15 DIODE 1 NATIONAL COMPONENT INC.

D12 SR1FM-2 DIODE 1 * * *

D3 MZ312 DIODE,ZENER 12V 1 * * *

D4 MZ306-B DIODE,ZENER 6V 1 * * *


D10 RD3.0EB2 DIODE,ZENER 3V 1 NEC (JAPAN)

D11 RD15FB DIODE, ZENER 15V 1 NEC (JAPAN)

D19 RD6.8FB DIODE,ZENER 6.8V 1 NEC (JAPAN)

L1,2 TP0410-331J INDUCTOR 3301JH ±5% 2 TDK (JAPAN)

L3,4,5 TP-0206-101K INDUCTOR 100lJ H ±10% 3 TDK (JAPAN)

- 16 -

(can)


Designation per PCB

R81 NLl/4J8201F RESISTOR 1 SEF (JAPAN) 8.2kD 1/4W ±1%

Rl,2 NLl/4J6801F RESISTOR 2 SEF (JAPAN) 6.8kD 1/4W ±1%

R4,5 NLl/4J4700F RESISTOR 2 SEF (JAPAN) 470D 1/4W ±1%

R6,7,28,70, NLl/4JI00IF RESISTOR 5 SEF (JAPAN) 71 1kD 1/4W ±1%

R9,19,26,27, NL1/4J1500F RESISTOR 5 SEF (JAPAN) 82 150D 1/4W ±1%

RI2,22,53,54 NL1/4J2201F RESISTOR 4 SEF (JAPAN) 2.2kD 1/4W ±1%

R13,15,18 NL1/4J3301F RESISTOR 3 SEF (JAPAN) 3.3kD 1/4W ±1%

R14,30 NLl/4J4702F RESISTOR 2 SEF (JAPAN) 47kD 1/4W ±1%

R17 NL1/4J1200F RESISTOR 1 SEF (JAPAN) 120D 1/4W ±1%

R20,21,23,24, NL1/4J4701F RESISTOR 16 SEF (JAPAN) 25,33,40,43, 4.7k~ 1/4W ±1% 45,46,60,48, 11,80,83,84

R38 NLl/4J1502F RESISTOR 1. SEF (JAPAN) 15k~ 1/4W ±1%

R37 NL1/4J2701F RESISTOR 1 SEF (JAPAN) 2.7k~ 1/4W ±1%

R8,29,59,72 NLl/4J1501F RESISTOR 4 SEF (JAPAN) 1.5k~ 1/4W ±1%

R31 NLl/4J3902F RESISTOR 1 SEF (JAPAN) 39kD 1/4W ±1%

- 17 -

(con)


Designation per PCB

R58 NLl/4JlOO2F RESISTOR 1 SEF (JAPAN) lOkst 1/4W ±l%

R57 NLl/4J5601F RESISTOR 1 SEF (JAPAN) 5.6kst 1/4W ±l%

R39 NLl/4J2203F RESISTOR 1 SEF (JAPAN) 220kst 1/4W ±l%

R51,52 NLl/4J3900F RESISTOR 2 SEF (JAPAN) 390st 1/4W ±l%

R55,56 NLl/4J3300F RESISTOR 2 SEF (JAPAN) 330st 1/4W ±l%

R42 NLl/4J1800F RESISTOR 1 SEF (JAPAN) 180st 1/4W ±l%

RM2 PSRl.5A301J RESISTOR, MODULE 1 IWAKI MUSEN 300st ±5% (JAPAN)

RM3 PSRl.5A441J RESISTOR,MODULE 1 IWAKI MUSEN 440st ±5% (JAPAN)

RM7 PSRl.5A561J RESISTOR, MODULE 1 IWAKI MUSEN 560st ±5% (JAPAN)

RM5 PSRl.5B821J RESISTOR, MODULE 1 IWAKI MUSEN 820st ±5% (JAPAN)

RMI M16A-151J RESISTOR, MODULE 1 IWAKI MUSEN 150st ±5% (JAPAN)

RIO 3321P-1-503 RESISTOR, VARIABLE 1 MURATA WORKS (JAPAN)

R34 3321P-I-202 RESISTOR, VARIABLE 1 MURATA WORKS (JAPAN)

R35 3321P-I-I03 RESISTOR, VARIABLE 1 MURATA WORKS (JAPAN)

TRI MPF970 TRANSISTOR,FET 1 MOTOROLA

DC446629-001 BRACKET,CONNECTOR 1 * * *

- 18 -

(can)


Designation per PCB

JS 1-480271-0 CONNECTOR 1 AMP INC.

60618-1 CONTACT ,CONNECTOR 5 AMP _,INC.

DCPS-112002-006 SCREW,PAN HD,WASHERED, 2 M3 x 0.5 x 6BS

UL1061AWG24 (7)-2 WIRE,VINYL O.lMR * *

UL1061AWG24 (7)-0 WIRE ,VINYL O.lSMR * *

* This parts list applies to the PCA, NAFHG part No. DC447248-03-E.

* * Means "Custom-made for MELCO Computer Works".

* * * Means parts made by MELCO Semiconductor Division.

- 19 -

N o

+5V L4

CIO'~ too LI R4 .....-4 __ -+--J

~R6.J..C4T LC3 . ,.

L2 R5 ~~~'~~_.-~_Y~----TO

,--__ -, C2.l.. @.:..( 4...:..;/:,...4:..,:.1 ___ 7~---,

+5V",,;r r-- 10 (AS-1412-021 II I~ l"i 4 3 16T IHEAD

16 a Ori---r-:<f 02 r ~, ~ ~ I-- A 06 L...---=~-f---~...-----t .... ~_-"""-t7 RAI R/W'=?I-"S'---------'--'----'---o

RM II 1 RF ~ ( M C 3 4 70 ) 01

P3-A7 -0

L I .,..J 2 L--_______ --ti~ .... t---__,8 RA2 R!WI J..:6=--_____ --"-....;...._'--<

~ 51 13 12 61 C:~ 7 81c8 9 ...... WRITE ~J~-2d- SE ", I RIO 3 q~~ y8t- ...--__ -....,.....---""'RfY5\r1-.-:..;10~01 R/WI2Io=3----,

CURRENT SW' R58 r ~l" ~ ~?3 ,. d-0.4~--l~h ...c ..... ,~... 2 ~RII ~R 12 ~,--...,....,......--+-_J,~l/\5~2_--,-1"-I1 W02 RlWII~4.:.....-_--,

: S I '--- TTT CI~ ~9 S .... +5V'tt~" 8 09

o I ~ " ~ C36 't' ,. 14 LC ZD- K==t12 : DO ~6=--___ ...... r C03 ~; O~TR I ~~ 9~058 ~P..' A,. 04

+5 V +---<t>+5V ~~2~------:...:..!...!...f-------~'-D ..... 0-='---+-+--... .,~~:-:'I"'c;---'9'WE ZO A IS

~ °3 fir J1-24 (04) t----JRV\,~4f1r--R-13-<D~ +24V_(OA6N) oiq +24V-AN 13v

+ G~DUCII I (NOT USEO~~ 005 t~ I. ~

OSE~ -MFM~ ~. [20RI OR211 M F M : -;: ----.!.1L I I (L 504 ) _L -----;l.o.~OIO_':\-!-1 _-+--==5~,~~Ooo9.!26'--.J

SN (2/41 +5V ~ITo~ ~ tr" RI5 OA ~ PST n: 10 OC 6 5 009 (LS021 (06) 805

S---r-J'" ~c 1 4 '. - - ~ 00 L.- r--!- 8 08 2 6 .--_~ ______ ~---,I~I 10

+TKO (2/4) 9 .~LI- ~A OA~ (LS02) (';6)

-COO (2/4) (L~04 IJ,. 00880~ +5V

-CUO (2/4) I L4 LTO~t~ f r_£!~1 ~LSI93) b~ 7 r -- -._1-+.:::5'--_1---1

+5V A'\ 13j. LA ..A4

........ I" 12 0 5 N 9 61 ~ 'Y L_~-, 21 806 4

E02 804 +5V -WRITE ,').-:J:..:.I_-.::..3.::;.8~_--+-+-+-__ ..:::3'<4..:~4 ___ I-t1 T C 8 II 1 ~

DATA '" "(14) 'J3Yii:SR L_ - - r-- ~ 13 (LS74) (472) 3L_---1~----A R55 12 5

.---4--t-4~---------:''='''' - R56" '-------"'=iV+ CTOJ=--------'

JII

+24V-~; (AS-1413)

~ +24V ER I J.!1.:.6_.-----+--f-+-"--~~J C 14~ ~ :;: C 13

+5V ~ NC EROI'-IS"'---f--_~

t 1" I +5V C TI t-:6'---...... ___ --+-+_---"-_u

P3- A6

P3 -A5 -0

:~CI2

P3-A4

P3-A3 ()

P3-A2 ()

P3-AI .()

I HEAD

P3-87 -0

P3-86 ()

P3- 85 -0

P3-84.()

P3-B3 -0

P3-82.11

01

R/W-O

R/W-O

ER-O

GNO-O

CT-O

GND

GNO

I I R/W-I

R/W-I

ER-I

GNO- I

CT- I

(KEY) 05 A09 r~..?..,

I ~ 805 I '. EG ~ WP EA2J!:14::!.-_Q.-.Jl""'fI,-41..., P3-8 I 8 GND - PST ...!.(=.2:.-/4..:...;):..-.--+ ...... +--f-+.--t un-,I"",.31 q-CO~2 WP (LS04) II", 10 1fr C T 1 ... '

- WP ( 41 4) ~L (06 ) r--.:;5-1~~°1()5..;::6_ ....... r_-'l~1oJ18v-__ 1..,0 EO L ~'': J 7J'

(LSIO) ~ 12C07 WG '-- lO6) 805 EAI II -WRITE JI-40

GATE ",.

+05 (214)

(4/4)

11~(1042110 NP) II (02)13~H5Vtl C26 C07I-fo;~ 805

.. ~, I R37 +12 1-";" 2 3-" 4

f 9~SHOfU l .. '.:..Lc"5>c

0>=4'-) -"'-:r=-C(b-1

":6>-'-) --'-I

~ R83 1 L.l~8]"c~15 . OHS l..-------------::.-:.,-~ 5 E03 +5V 10 - rt-tt=====j=::===JiC»l.L.":-'---~~~~ 4 6 TC71 I E04 C 12 1

'HSOCT R 0/1 05

4 HS I GNO 8

JI-48

.12 003 II J 1""46 131

(38)

-READ

-READ

O~

Dl

~~~~~==~=~~=~:~==:::;3~ 'L S 10) ", L~ ~ _~Rr-.J J ~----------------+--------T.III~ r-_~9~~~ti--~-------~

® ~OE JI-50 I -WINDOW

ERG HIS

®

(2/4)

(2/4)

(214)

I

10

(LS08)

(214) -WG

IREAD/WRITE CIRCU IT ( I /4>\

( 1/4) -WG

_STEP,JI-36

+SVh. '!' 1~::-13 ~ ___ l

I E02

13 -'" 12

(14)

RMI IT

+SV ¢ RI9 Q

1

-INUSE JI-16 r--~ >-=-....:...---.,;;.--t-o;.- D EO 2

+SV'+" II r--j6 9 8 T l. ___ J HI "V'"(l4)

STP

~13 ILS02)

+SV

4

2 D S N~ DIO

3 T C 6 R t-

RM I +SX (J)-----"W\r---..~

I COS

~' (OS)

2 E09 ---- 3

~ EOS

11...f':l 10

1~4)

DLMG

HLO

IN USE LED

+5V ~:r

12/4,4/4) 1314 )

1314 )

1314 )

1 1/4 4/4)

1314 ) (314 )

14/4 )

1 1/4)

1314 )

( 1/4)

1114 )

I 1/4 3/4)

® + STP - OLMG + I N USE

® -os ©

+ S I DE SEL + DS -HLD -coo -CUO PST

L

~74) l

I CO2

203

=~~~~~ ON ,JI-IS 't' R21

T LT- PS +SV ® (4/4)

9r-----~8 Mn ~~lrR~MN~~·I-~~~x--i±J~~J--I--~--;-0-;:4:~~==~-P~_H __ _+~.-I---+--------~~~

L~V2f ~~010 C07 r-1- RI141 R2~ .----<t--1""'3..q~ "". C 10

,. +1ILS04) ..§. 001 a02~ R 17 < C 15 . 2. ac I ac:< ~

-MOTOR START

(3S)

+~ R23 1/64 .-7" ~ aB I aB2f.2-

't'

l~ 11..-_(_0_2_) _++-=-+r----orr-_-:Cl 0 L Q + ~ V R 20 q' Y fu 13E08

12 T2 6MHZ ~ 2aAI aA2~

M 1M2 B i rl H LL I '!' 1 ... J 1- 4 4 ~ c;7'c;> I f-f- 3 004 9 009 C09 I

r---, '---t I A::J 2~ ~8 10 1 I .2 I > 18 L--..J -o<-l ~---'.-<l'1~0~2) ILS02) (06)

1 (04) 1~3LS393)

C07 ~S_

23], l VI LS04)(4/4) ~ ~---------~------~ ® (4/4) PST CLK ~ (1/4,3/4) _ PST

+5Vqr~ __ ~RN2~7--1:------~lq~~OrO~2~~~ __ ~ __ ~~S~~tO>3~6_ ::~ CUO ~CDO

ERG 24 ( 1/4) ERG HIS27 (1/4) HIS

IB OS-1 (38) ('04)

L...L......r. ,< E02 r-T---

J Y ~ ~S ..... 6

- DR I VE '>-,-J_I_-_2_6-t __ =-~ ~ ;I SELECT I 2B -2 17'4)

MO

1MB 14079)

~WRG '------"'-f

l S TP

D 06

H-o <;> q

SE~~~-fV~ ~-+--3-B-....J1 -3

+5V ,+,. T

R40 <0,

I '~'DD2 '¥ '-----6-01HLo

R2S ~ 6 _2USR +5Vch--¢---'.;w.-;.~ __________ -1L)r::::'-'---J .---f.l EUR

~~ -DR I VE J 1- 30 I

S E L E C T 3 >-':....:....~~t--4-B---' _ 4 R26 +5V ,.,

'1"

. 13S) E02 'I1T

r----~I~~>~2~~~----~2~0IR M) ~IXR MS

H-09( ~ '----+--4-tSEL '01~1-2---------1~3~/-4-)~

S E ~ ~~ + V~ ~>-,J,,-,-I _-.;:;.3..;;;2-+ .... __ -_-_-_-_....J ______________ ~....J 2 r - - -..., S +~ S 2 S3 I. - - -,.; 'Y H U 0 t-'-"19:......-___ ----"1...;;;3-'-1_4""-)

5 It\. ISr :A-j,2 f---I RM I C03 ~ SOK DOS

~IXH

-S I DE S E L ' J I - 14 + V<.V-T--"'~L~_fV_V-_-..Jc,>=---1~-T-LtU IS I 1L--1--___ --'9~J,,:r>...!:8~ ...... ----+_1---7~HSL R DY ~ ~

RM I (04) t(4) 01 RECTI ON J 1-34 CRS TaL TKO

(4/4)

(1/4 H 4/4) +SOK ~(~4~/~4_)~ _________________________________ ~

J04

II 0 I

+HUO

- ROY

+TKO (S IDE :~~) '~1:!...4.!../-:-4=:)=--------------------------------------4---~ 161 I II 8l

-TKOP (4/4) .-______________ ,

/CONTROL CI RCUIT (2/4) I

~ 04 ( 2/4)

~Ol

PST (2/4)

- PS T (2/4)

N N (2/4)

- D S

+ ST P (2/4)

- H L D (2/4)

+HUD (214)

®

- OLMG (2/4l

+ SV

© (2/4)

+ INUSE (2/4)

+ 24V-PW<t>~---!.P...!:.2=--....!A::..:I~OO SPIN OL24 __ ----ip ...... 2~-....JB.wIc...:..1 0 S PIN 0 L 0 V

JO L--------------------------------;P~2-~A~I~-STM-(G)

~JL~~L_~~------------------------------------------------------_--~P~2~-~A~~2 -STM-(B) r--.:..-j[::'O-==------=--HlI P2 - B I 0 _ ST M _ ( y)

---------------------------~C_---~P2~-~B=2~-STM-(R)

D II 9

+ SV

+SV

R39

2 E07 3 6

+ S 2.6 S 7 C40 C29r (NES55)

- C09 ~:-_-~~_-~_-~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~3~~4~--~P2-B3

+SV R30

+SV

6

7

CGO!

6

R3S

+STM-CTI

+5V (414 ) @

iDiSK- o"lh - -NCl P7-1

I _!..REO) P7-2

I~ ~~~':'N ___ N9.J

__ -..J P2-A14 +HLMG

9

P2-A16 -HLMG

IN I P2-B13 HLSN

4 LOAD IN2 2 P2-A13 HLSP

I I OFF I

F05 R34 10 OFF GA S 3

3 (J20037 1

+24V-PW

+ SV R42

P2- BI6 - OLMG

.. P2-BI2 +INUSE (4/4) ®

I MOTOR ISOLENOID DRIVE CIRCUIT (3/4) I

tv W

o E 4 +5V~ ~ ~T +24V-AN 5",," 6 .....

(W. LE

C2S ~-H (L504)

3f ,),. I 16 P.) ,....P2-A6 O-A 10 .....

PT

PT

LE

....... P2-AS 2 5 R- C ..... 01

~WP P2- 87 4 IX

R-E ----o=~ ~2~~

GND D-K

(I NO LED

PTR-

PTR

PTR

LED

(TK LE

R82 EX 01 I),.... P2- A 7 9 02 6 1 E09 R43 -;"SV -AO .....

6r-+.?, C 0/IOP2-AS

..,.. ..... 15

~ F 08 IXO ~ -EO ~P2-A9 7 10 FO S N 9 -EI nP2-B10 II 03 12 010 .....

II T C S ~~ ~ n P2 - 89 -KI ~

00) IXI

n P2 - A4 8 GNO O-A ....,

PT

PT

LE

+SI DE

EOS R-C n P2 - A3

04 13 3 .... 4 ....,

~ .....

",P2-BS 14 (LS041

R-E V

® (3/4) TKOP

n P2 - B6 (7220S3AI S EG9 O-K ..... ,...,

r - 6

7131, ® ( 3/4)

ROY ( 2/41

SEL ( 2/41

+ ®

( 2/4)

( 2/41 TKO ( 2141 PST

+SV ()JS-S +5V - JS-4

+ 019t YCIOI- C114 :!: N .C) 0 C46: ;: C30

GNO OJ5-3 ITPG x 7

JS-2 GND

J, C47

-I LS

+ o C31f C..y C48,~

24V ~ J5

I J5G JFG

J 1-1,3--·49 C33

FG

GNOOJ5

-6 :~

"to R59 L 3 ":" ... S.G >

+24V -AN

03 i C34f C:± fC49

+24V-AN

+24V-PW

TKOO:::

(2/4 3/41 ® , F

(214) -lX

+CJ4 (2/4)

+SOK +SV,h ~31 +SV A.. R3S + ... C27 ~ "'" ... ~

..,.. ~ .. 14 J,. IS I 5E--t-~...., JI-S

SHOT ~NESHOT -I i-TRUE ROY II .h... ---., 113

I ~ If.-I ""Ja~.~ 121 ,... 18·.l.:l 13

U.LJ 220m5 C 4 122m5 I 14 ICO~ L~~ __ R\...J 2J 4 CO2 LE...9~....B;f ...J(LS 123) (LSI23) 3 (LSOS) S 6 8

( 1141 (3S1 -WP

(2/41 -TKOP

10 004 9 S P2 -A II ~-MOTOR ON

(3S1 9C02 8 ~~S

I A-+SV 101~ 't' ~3S)

~ P2-AIS

13 II 81S 0 +SV GNO IN USE +5V '(r (38 JT

25 10 ~ ~ I J 1-10

~D S N~ ~O 5 N~ I -TWO S I DE

C04 C03 04 --~TRC~ ~4 3 T CL DC

~ ..... R y..o ~ J I -12 (04)

~~41 -DISK CHANGE

~I

~(LS74) 0/4,2/41 r--®

9 COS RS 1 9 004

sT)!Q-I 10 j ~S

~ (08 ) (02)

CllSi 100l' RM

HR L HY ROY -0

~ R

12 .11 : ~ b ~ JI - 22 -READY

Rl RR r (38) R45 A..

aSI ... 'Y + SV 0 .,.. B~O 1002 J

3 1...(' hi J I - 20

+5'i 21 1'-' '-'I -INDEX

R46 38 T" '. 005

1.J"o,. 2 1003 ...... 2 3 JI-44 -WP (LS04) ~3S!.OO3

51 6 JI-42 -TKOO (381 ( 1/41 @ (2/41 ®

POWER 1 DETECT CIRCUIT (4/4 )

o FG

A

J.NAFHG 8

I >-(II NO 0 E2 EI HY HR ~m .... ; 0 0 0 0 r:I:IQI 0...

00 0 14 8 Iii

'0 ! o. ?,: .m.4, ,: I ~ I OCI03C) I 10IMoo! ~

I

PIN DC447248 - 03 - E

101814079101

1 7 0 8 mJ Xaa. V:)OIOR370! OC260

.... '" o o

'" on 0 N N ....

Q

t~l ~:~:

'-r' 6

0-14 I:I;IV70 080V8V:~4 ~ ):M:)3238P : I M74LSIOP ~ 2 R~4 ~ DC G 1 I 7 RF d Ii I

14~IOR=4=:!OTI.:;'I·~!8 ~:O : ~~:r > M~3214 P I ~ !~~~

___ ..... :"1 I 18 I 4

IOR24o!o O~MO 00 HL

~6 9 2 8 :).

5 SH75 _"w:-r::'~ RM I 0 473P

I 8 4

JI

8 c o E F

10 .. . 00

9

N

0.. 8

7

6

• ~ 5 • .\c&L-."".. • ~ 4

~ MFM09. ~:)vo

'" GO : 000

010

o SN 0 o CO

3

2 040

0"·' 0

/PCB(PCA,NAFHG) COMPONENT LOCATIONS

PARTS LIST OF PCA, NAFHG (PIN OC447248-04-E)

Reference Part Number Oescription Qty

Oesignation per PCB

OC447093-GOI PWB, NAFHG 1 * * (Se~ page 31)

El IC-31-2803 IC-SOCKET 1 YAMAICHI (JAPAN)



P2 PS-32PA-04LT1-Al CONNECTOR 1 JAF (JAPAN)

BS,Cl,Cl,Ol, 00-8261-0232-10-854 PIN,MOOULE 16 ELCO 02,02,03,04, INTERNATIONAL 04,09,E2,E6, E6,E8,Fl,E8

A1,B7,C1,C2, 00-8261-0033-10-854 PIN,MOOULE 14 ELCO C3,C5,CS,01, INTERNATIONAL 01,04,F2,F9, F9,C3,01,02

01,02 00-8261-0632-10-854 PIN,MOOULE 2 ELCO INTERNATIONAL

01 00-8261-1233-10-854 PIN,MOOULE 1 ELCO INTERNATIONAL

A1,Cl,Cl,Cl, 00-8261-0282-00-878 PIN,MODULE 18 ELCO C3,C4,C6,01, INTERNATIONAL 01,01,01,01, 01,01,03,03, F2,F9

IC 04 MS3202P IC,OIGITAL 1 * * * (See page 31)

IC C3 E8 MS3204P IC,OIGITAL 2 * * *

IC BS C9 MS3206P IC,OIGITAL 2 * * *

IC C5 M53208P IC,OIGITAL 1 * * *

- 25 - \

(con)


Designation per PCB

IC E2 M53214P IC,DIGITAL 1 * * * or M74LS14P




IC E3 M74LS10P IC,DIGITAL 1 * * *

IC B4 D10 C4 SN74LS74AN IC,DIGITAL 3 TEXAS INSTRUMENTS

IC E4 E5 M74LS123P IC,DIGITAL 2 * * *




IC A6 MC3470P IC,LINEAR 1 MOTOROLA

IC E10 ULN2003AN IC,LINEAR 1 TEXAS INSTRUMENTS

IC B6 SN75472P IC,LINEAR 1 TEXAS or SN75462P INSTRUMENTS

IC F1 F2 SN75473P IC,LINEAR 2 TEXAS or SN75463P INSTRUMENTS

IC E7 NE555P IC,LINEAR 1 TEXAS INSTRUMENTS

IC B9 AS-1412-02 IC,HYBRID 1 * *

IC A9 AS-1413 IC,HYBRID 1 * *


IC F5 J20037 IC,HYBRID 1 * *

- 26 -

(can)




C12,13,14,18, PRE122-127C103K50 CAPACITOR,CER. 0.01 PF 27 MURATA WORKS 28,29,45,46, 50V ±10% (JAPAN) 47,48,49,19, (CER.=CERAMIC) 1Q1,102,103, 104,105,106, 107,108,109, 110,111,112, 113,114,115


1kV +80% (JAPAN) -20%

C3,4,50,51 RPE122-127CH471J50 CAPACITOR,CER. 470pF 4 MURATA WORKS 50V ±5% (JAPAN)

C8 RPE122-127CH151J50 CAPACITOR,CER. 150pF 1 . MURATA WORKS 50V ±5% (JAPAN)


C36,60,71 RPE122-127CH102J50 CAPACITOR/CER. 1000pF 3 MURATA WORKS 50V ±5% (JAPAN)

C34,61,22, RPE123-127F155Z25 CAPACITOR,CER. 1.5l1F 6 MURATA WORKS 23,31,32 25V +80% (JAPAN)

-20%


C1,2 MFLP5002-223K CAPACITOR,PLA. 0.022l1F 2 MATSUO ELEC-50V ±10% TRIC (JAPAN) (PLA.=PLASTIC)


C6 MFLP5002-102K CAPACITOR,PLA. O.OOll1F 1 MATSUO ELEC-50V ±10% TRIC (JAPAN)

- 27 -

(con)


Designation per PCB

C9 242M2502-475M CAPACITOR,TANT. 4.7WF I MATSUO ELEC-25V ±20% TRIC (JAPAN) (TANT.=TANTALUM)

CIO,30 242M1602-226M CAPACITOR,TANT. 22WF 2 MATSUO ELEC-IOV ±20% TRIC (JAPAN)

C15,26 242M3502-155M CAPACITOR,TANT. 1.5WF 2 MATSUO ELEC-35V ±20% TRIC (JAPAN)

C40 242M1602-106M CAPACITOR,TANT. IOWF I MATSUO ELEC-16V ±20% TRIC (JAPAN)

C24 242MIOO2-156M CAPACITOR,TANT. 15WF I MATSUO ELEC-IOV ±20% TRIC (JAPAN)

C21 244M1602-335M CAPACITOR,TANT. 3.3]JF I MATSUO ELEC-16V ±20% TRIC (JAPAN)

CLI CSA6.00MS OSCILLATOR,CER. I MURATA WORKS (JAPAN)

DI,2 DC447733-GOI DIODE,PAIR I * *

D5 NDPl15 DIODE I NATIONAL COMPONENT INC.

Dl2 SRIFM-2 DIODE I * * *

D3 MZ312 DIODE, ZENER 12V I * * *

D4 MZ306-B DIODE, ZENER 6V I * * *

Dl8 MZ305 DIODE, ZENER 5V I * * *

DIO RD3.OEB2 DIODE, ZENER 3V 1 NEC (JAPAN)

DII RD15FB DIODE,ZENER I5V 1 NEC (JAPAN)

D19 RD6.8FB DIODE, ZENER 6.8V 1 NEC (JAPAN)

LI,2 TP04I0-33IJ INDUCTOR 33O]JH ±5% 2 TDK (JAPAN)

L3,4,5 TP-0206-I0IK INDUCTOR IOO]JH ±IO% 3 TDK (JAPAN)

- 28 -

(can)


Designation per PCB

R81 NLl/4J8201F RESISTOR 1 SEF (JAPAN) 8.2k&'"21/4W ±1%

Rl,2 NLl/4J6801F RESISTOR 2 SEF (JAPAN) 6.8k&'"21/4W ±1%

R4,5 NLl/4J4700F RESISTOR 2 SEF (JAPAN) 470&'"2 1/4W ±1%

R6,7,28,70, NLl/4J1001F RESISTOR 5 SEF (JAPAN) 71 lk&'"2 1/4W ±1%

R9,19,26,27, NLl/4J1500F RESISTOR 5 SEF (JAPAN) 82 150&'"2 1/4W ±1%

R12,22,53,54 NL1/4J2201F RESISTOR 4 SEF (JAPAN) 2.2k&'"2 1/4W ±1%

R13,15,18 NL1/4J3301F RESISTOR 3 SEF (JAPAN) 3.3k&'"2 1/4W ±1%

R14,30 NL1/4J4702F RESISTOR 2 SEF (JAPAN) 47k&'"2 1/4W ±1%

R17 NL1/4J1200F RESISTOR 1 SEF (JAPAN) 120&'"2 1/4W ±1%

R20,21,23,24, NLl/4J4701F RESISTOR 16 . SEF (JAPAN) 25,33,40,43, 4.7k&'"2 1/4W ±1% 45,46,60,48, 11,80,83,84

R38 NL1/4J1502F RESISTOR 1 SEF (JAPAN) 15k&'"2 1/4W ±1%

R37 NL1/4J2701F RESISTOR 1 SEF (JAPAN) 2.7kr2 1/4W ±1%

R8,29,59,72 NL1/4J1501F RESISTOR 4 SEF (JAPAN) 1.5kr2 1/4W ±1%

R31 NL1/4J3902F RESISTOR 1 SEF (JAPAN) 39kr2 1/4W ±1%

,...-:.

- 29 -

(con)


Designation per PCB

R58 NL1/4JI002F RESISTOR 1 SEF (JAPAN) 10kD 1/4W ±1%

R57 NLl/4J5601F RESISTOR 1 SEF (JAPAN) 5.6kD 1/4W ±1%

R39 NL1/4J2203F RESISTOR 1 SEF (JAPAN) 220kD 1/4W ±1%



R42 NLl/4J1800F RESISTOR 1 SEF (JAPAN) 180D 1/4W ±1%

RM2 PSRl.5A301J RESISTOR,MODULE 1 IWAKI MUSEN 300D ±5% (JAPAN)

!

RM3 PSRl.5A441J RESISTOR, MODULE 1 IWAKI MUSEN 440D ±5% (JAPAN)

RM7 PSRl.5A561J RESISTOR, MODULE 1 IWAKI MUSEN 560D ±5% (JAPAN)

RM5 PSRl.5B821J RESISTOR, MODULE 1 IWAKI MUSEN 820D ±5% (JAPAN)

RMI M16A-151J RESISTOR, MODULE 1 IWAKI MUSEN 150D ±5% (JAPAN)

RIO 3321P-1-503 RESISTOR, VARIABLE 1 MURATA WORKS (JAPAN)

R34 3321P-1-202 RESISTOR, VARIABLE 1 MURATA WORKS (JAPAN)

R35 3321P-I-I03 RESISTOR, VARIABLE 1 MURATA WORKS (JAPAN)

TRI MPF970 TRANSISTOR,FET 1 MOTOROLA

DC446629-001 BRACKET,CONNECTOR 1 * * *

- 30 -

(con)



J5 1-480271-0 CONNECTOR 1 AMP INC.

60618-1 CONTACT ,CONNECTOR 5 AMP INC.

DCPS-112002-006 SCREW , PAN HD,WASHERED, 2 M3 x 0.5 x 6BS

UL1061AWG24 (7)-2 WIRE ,VINYL O.lMR * *

UL1061AWG24 (7)-0 WIRE ,VINYL 0.15MR * *

* This parts list applies to the PCA, NAFHG part No. DC447248-04-E.

* * Means "Custom-made for MELCO Computer Works".

* * * Means parts made by MELCO Semiconductor Division.

- 31 -

W N

JII

01 DO

+5V G

C

DSE MFM

SN DA

+5V L4

+ CIO*

(4/4) 1'7

@ +5V -0- -

16 a r "">- , r--"-~

~I b I--

RM,!' RF~ L,>-J 2

WRITE JI-2r±- SE CURRENT SW"

SI~~ 1 , ~

6 r ~+5V 0

1J.,. J1-24 3 ~

(NOT USED>' ~ -MFM~

9

4 6

~ PST (2/4)

LI R 4 R6

t" ~+C3" L2 B.5 R.?

'C2-b ::.C I II 14 15 4 3 1'6T I

10 A 06

(MC 3470)

~ ;J, 13 12 6G' 7 8 9

I ~IO 3 CI~ Ci ......

R,~. 'i; ~j RII ",. CI~ ~9 ~~

)~ C36 C03 ~~ o Ht---;J,. ~2 'r TR 1

.... (04) RI4 A-

Y'Y

R13't' DOS 1~12

~J (Lro4) 2 009 3 I

+5V ~ 0 ~o 7 5 009 (LS02)

-f'l AD3

~IGND I ~ IAD4 L':.J

2 R~. (AS-1412-02)

T -~ ~! 7 RAI R/W~ 5 I 11. 1 .....

T R81 D~ , 8 RA2 RlWI 6

R51 10 WDI RIWI~ 3 r ~?_3

~R 12 ,y ~52 II WD2 RlWII 4 r R.t~

'Y+5V , y BOg

I4 LC ZO-K~ B05 ~~7 A-

04 g" 8 't'

9 WE ZD-A 15 +24V-AN

(06) r-f' 13 V+ GNDI6

+24V-AN LC rOR' OR21

C09 I 5~

RI5 (06) B05 __ ....J l~~C OC 6 005 - - I OB 2

6) 4 II" 10

9 ~L __ I---'- B v (2/4) ~A OM~ (LS02 ) (06) +TKO (214) (L~04 ~ 13 +24V-AN -COO I'~ D0880~ tV (AS-1413) (214) I L CA~ -1;7 -CUO

I TDTU ~ +24V ERI 16 RMI 7 r ---'5

+5V A-13:-:---' 4 ~LSI93) ~~

61 ~ CI4;~

15 : ~C13 I.. __ ---1 12 0 S N 9 +f ~ NC ERO 'I" 21 ~B06 4 E02 604 +5V ,~ I

-WRITE ... JI-38 3 4 II T C 8 III I -0' +5V CTI 6 DATA ". "'V R L_ -- r--1141 ~74) (472) 3 R55.

12 V+ CTO 5

I ~ R56 ..

[R-:!l A09

B05 Jr ''OY EG ~ (214)

~2 'LSD" WP EAZI4 -PST II" 10 ? 1 (4/4) (rsl 5~56

.L

RI8 L~'~J -WP

EO~LS'O' ].t 10 ED IZC07 WG L-- to6) B05 EAI II 13 H

-WRITE JI-40 II~ 11 1+5\;-

I.i'.: 2 'HSOCT R GATE' v I NP (021 R37 +;"Z6 C07 106) B05 Oil 05 (14)

RMI

l I ..... 2 3 .... 4 4 HSI GND 8 r--...,

7U, IV" ~ ~ +5V A- 121.. i5 9!&{,SHOT - (LS04) (061 I.. __ J R83 .."

~6 +5. .L L ...l Z1 B 1 C~ 15 HS I

12 003 II 10 -(2/4) I C71 I E04 "I RC 12 I 13 I" '

+DS T ~oE ® (4/4) 3 L ~ ~S _~ '"':I (38)

(LSIO) r (2/4) \I 9~6S ERG (214) 10

HIS (214) (LSOS)

I HEAD

P3-A7 -0

P3- A6 ,..., 'V

P3 -A5 -0 :;:CI2

P3-A4 " 'V

P3-A3 -0

P3-A2

P3-AI ..()

!HEAD

P3-B7 " '-'

P3-B6 -0

P3 - 65 ,... '-'

P3-64 ,... '-'

P3- 63 -o

P3-62 -0

P3-BI ,... '-'

7."

J 1 - 48

J 1-46

JI-50 .. (2/4)

r ® /READ/WRITE CIRCU IT (I

I

01 R/W-O

R/W-O

ER-O

GND-O

CT-O

GND

GND

R/W-I

R/W-I

ER-I

GND- 1

CT-I

(KEY)

GNo

-READ DATA

-READ DATA

-WINDOW

-WG

w w

-M S

( 1/4) -WG

1 E02

-STEP ..... JI - 36 13 12

STP , M)

~i3 +5V A.. 14r:,~ --i3

~3 l. ___ l OlMG 'f'

RMI

RI9 ~ (LS02) (08)

+5V th. HLO

'f' 'yy ~

- +5V 2 E09 -INUSE "JI - 16 ~ 0 ~3

IN USE LED

E02 4

!' ~ II r~.-"""}6 9 8 2 S N ~ (38)

+ 5V 't' 1_' __ 1 () HI 14) I V -f- +S,'( 010 E08

RM I 3 T C~ _II~ 10 -HOLD I '" J 1- 18 I.~IJ 't'

R2i R (04) L- Y -MOTOR ON ,

LT PS 1KS74) ~2

T:;----~e ® (4 14)

Pij 11 I

I CO2 L ,,3 2 ,/

T "l"

xm I (38) L ___ ...J

6 004 +~ R23 RM I ] ,4 'Y 'yy

5 J - +1V R20 r (02) oly Z 4 MI M2 B~ ~ lL 't' 1 WJ OTOR ..... J 1- 4

~I 3 004 9 009 C09 I TART ,

A ~ 2]~'O I ...... 2

18 L-- (02) (LS02) 1 (06) '----

® (4/4)

I +5V A. R27 10 002 C03

9 8 5 ..... 6 't' IY

('04 ) 18 05-1 (38)

~ cf E02 MO R24 +SV

~6 A. -DRIVE", J 1-26 j 17"4)

~ , 'I' SEl EC T I ' 2B -2

H-o 9 +SV S 002 - DR I VE R40 SELECT 2 ,

J 1- 28 I th. ~2S 4r-:,. 6 3B -3 'I' IYY

+5V ,.. 't' YW

rt<> 9 ) (38) E02 -DR I VE "J 1-30 J R26 +SV I ........ 2

SELECT 3 , " A. MS 041 48 -4 '1"

K-<> 9 ,... .C+-

- DR IVE JI-32 I

WS3

2[---'S +Sl SELECT 4 ' L ___ ..J 'Y

r---, RM I C03 +SV,.. IS h. ..1.2

-SIDE SEl ::;. J 1- 14 T .. T

~g 9J'oo. 8 L ___ .... RM I (b4)

DIRECTION J 1- 34 (SIDE SEll" (414)

-IX +SOK (4/4 )

(4/41 -T P KO

(2/4 414) °EI

, (314 )

12 (314 )

(314 )

(1/4 414)

(314 )

(314 )

® F

+STP - OLM + IN U

® -OS

©

G SE

(4/4 ) ( 1/4)

+ SID E SEL

(314 ) +OS - HLO

( 1/4) -COO

( 1/4)

(1/4 314) -CUO PST

+SV ~r L ~ IJ ~ 4~010 C07 ~RI TI R212

13~ 1)" CIO

RI7 +*, (LS04) ....§.pOI 002~

~ CIS 1/64.2.. OC I OC2~ 7'1 r.1r ~PBI OB2~

.l. OAI OA2~

~ 13 12 T2 6MHz

'~tlS3931 (04) C07 9" 8

231- I ~1(4/4) PST CLK ~ (114,3/4) -PST

24 ( 1/4)

2~ ERG

27 ( 1/41 ERG

CUO HIS HIS ~ COO

(MB 14079) ~60 .y

~ WRG ~LI I STP .or

R221 C07 o 06 ~ 6

HLO (L504) 2 USR

~fiS~ _--.£!. EUR J; 13 .04

~l 20IR 17 ( 3/4) ,-- IXR USF .04

4 SEL ~ 01 12 (3/4)

'01 ~ IXH

HUO 19 ( 3/4)

+HUO ~ SOK DOS

7 ROY 9 5" 6 (4/4) HSl -ROY

(iQ4) CRS TOl TKO 161 " 81 (1/4)( 4/4)

+TKO

/CONTROL CI RCUIT (2/4) I

+ 24V-PWCP P2 - A 100 SP IN OL24 P2-BIIOSPINOLOV

(214) J P2- A I tI 04 -STM-(G)

P2-A2 -STM- (B) P2- B I -STM-(Y) P2-B2 -STM- (R)

C09

3 4 P2- 83 +STM-CTI (2/4) tlOI

+5V R30 011 9 R84 (06)

12 +5V +5V

( 4/4 ) @ (2/4)

,OiSKOUT- -N2 P7-1 PST

I ..... i.REO) P7 - 2 - PS T (2/4)

:~ + 5V

tE::>~ ~N ___ N~

+24V-PW P2 -A14 +HLMG

1 7 +5V

6 PD 9 +24V STN

CT P2-A16

8 +5V HLMG 14 -HLMG

:22 W (214) HLA 120UTI P2-B13 ~ - 0 S

IC23 IN I HLSN

4 LOAD 2 P2-A13 HLSP IN2 (214) HL I + ST P

R34 (2/4)

6 FOI 5 GA 5 3 - H L D

7 R:35 :3 (J20037 )

+HUD (2/4)

RM2

® (214,414 )

E08 +24V- PW

- OLMG (2/4) 5 6

+5V (06) (04)

C60l + 5V R39

P2- BI6 :3 7 F02 -DLMG (2/4) 2 © 6 E07

6 +5V R42 + 5 2.6 S 7

~ P2 - BI20 + I NUSE C40

C29r (4/4) ® (214) (NE555)

(3/4) I IMOTOR ISOLENOID +INUSE

DRIVE CIRCUIT

W U1

E04 (2/4,4/4) ® ~ ____ ~5~»~6 ______________________________________ ~ ______________ (~2~/~4~)~_lX

~ ~ ____ -+ ____________ ~(:2~/~4~)_+SOK (LS04) +5V .J... R31 "tCJ4 +5V \tm-~ ___ J\&.,.. .... &",IR...:3;...;;8 __ ... +.0ft4 ... C,~27 __ ---,

+SV ~~ ~;r +24V- AN

C28 .. .. I 16 ~ 'YY 15· ... ~ Jr' ow IS r"}4

!(i.E SHOT I-ll r:loNE SHOT -1-'1 iJI-

8 -TRUE ROY

31 Jr (W. P .)

~P2-A6 10 LED -A ...... II.... &........j 1J3 I.............

~ 121 "IB~:tT.-3 Lilli "YJBAJ#± 122mS I L,-l,..;14_~I_CO~ 2 220mS C 4 c..- I· C02

"P2-AS 2 01 5

PTR -C U"

1wp IX

PTR -E P2- B7 4 ~<;i LB_0_4 __ R !....J 2J 4 L E_05_ D"3 ....J(LS 123) 5 6 ~, (LSI23) 3 (LS08) 8

~===j==t========J========~======~~~~~~~~~~~~(~li/~4±)~ (38) -wp

,),.GNO LED -K ~P2-B8 .....,

(INOE X 0/I)~P2- A 7 R82 9 02 6 I E09 R43 ~5V (2/4) -TKOP

LED

PTR-

PTR

PTR

LED

(TK LE

PT

PT

LE

+51 DE

-AO '-'

C 0/1()P2-AB 15

F*I ~ ~) L..-__ 't"_-t--,r-+-r

IO~4 rt----------------1~59~~)~8~--~~-----.lP~2~-~A~I~I~~-MOTOR ON

~~------++----------------~ (38) 9C02 B

-EO OP2-A9 F 08

018 7 IXO It'll

~

03r1;12 fOo~o N 9

10] ~ ~~8 A. +5V T

-EI

-KI

00) O-A

R-C

R-E

D-K

®

f"IP2-B10 II

f'\,P2-B 9 ....,

~P2-A4 8 ...,

~P2-A3

P2-BS 14

(3B)

lIT C~8~~-+-++r~-------+~ R +5V

r; ~(}-., ~74) +5V "0· ~

2C02 13 II

(38

IXI-* .... ~ 10 ~ GNO 5' ~

E08 12 0 N~ J~ S N~ 04 13 3~ 4 C04 C03 I'" 04

(L504) .-~·n T CI-=-~ - f-+_"TRC~ I 3 .... 4 3 6

L.-__ .... TKOP EG9 H ( 574)

25

DC

P2-A15

J BI5 0 GNO IN USE

o-1l~~J=-..:....1 _--=-1 0--t~ _ TWO SID E J

J I -12 - -DISK CHANGE

® (3/4) ~ (~4) ~R'o'('JL?;-574) ()P2-B6 (722053A) 5 ~ 6 ~ L

..!.(...:3:..:.1....,:4:..,:) __ r," ________________ .-If 713{b) ..:::.....-------' 9 COS R S ~4.~ (1/4,2/4) .---

®

( 2/4) 10 I ,,8 -"'81---y2-~~~ (214) (08) L; ~ (02)

® ( 214) ~ RML:.J J, + TKO (214) 1c115~ t--t--1iO~~0'"'0~....,~"--------------'

P 5 T ..l(~2:..!/~4:.!..) --------------------iH-+-.:..:..;....-t----.J H R tHY ~Y +SV f"\J5-5 +5V ~2 -

...., J 5 -4 + tTL ~ J II I ./ b If--____ ....:J::...;I~-....:2::..;2~ - REA 0 y N .. C) 0 C46 ;:: C30 019 TC101""C1I4 _~ I J 1 I

1 R 1 RR r (38)

GNO OJ5-3 ~TPGx7 1~45 ~+5V G N 0 ~n-:J:..;5.....,:-2=-~~---, J...----------------~l ...... -----i>--~J,l B ~ I 'Y --y

_ B~ 0 1002 r C47:~~C31 C32 C48·I~ ~-----2~~L_'~3~--rl~O ~Ch:~ __ --~J~I--~2~0.

+24V tl J5 -I _ I ~ I - : +SV¢(f)o---,RVl41L6~ 38

'oJ J S G J FG L.. _____________ +_2_4 ... V - AN . ,yy DOS GNO 8' J5 -6 :~I _ 1;::- 2 ~~~ 3 J 1-44_ -wp

5 .. G ~J 1-1,3---49 C33 +24V PW (LS04) r-(381oo3 FG 51 6 J 1-42_ -TKOO

+24V~ R59 L3 ':' TKOO:! (38) (1/4) -AN ~+-----+----------------------------~~(~2~/~47)--~----------------------------~~~~~

O'i C34f C"± fC09

R

-INDEX

@

POWER 1 DETECT CI RCU IT (4/4)

A 8 c

M8 14079 M

J I

o E

MFM09

"~VO ... GO

Go

: ~~: SMO

00 CO

0::~'

r----~O

F

10

9

8

7

6

5

4

3

2

I PC B (PCA I NAFHG) COMPONENT LOCATIONS

TJ2-G4311D

II

SP ARE PARTS LIST

Introduction

The following is a spare parts list for the M2896-63 8-inch Half-Height FDD. Part numbers given in this list correspond to those in the illustrated parts lists (TJ2-G4308D). Use of the corresponding index number to reference the illustrated parts list permits the user to obtain an idea of the shape and structure of parts.

Spare parts are normally replaced only by the OEM customer or dealer.

- 1 -

Table 1 Spare Parts List

Corresponding index No. Part number Name number in illustrated

parts list

1 DC242325-00l Panel front (FW) Figure 1-2 (Pl)

2 DC242325-002 Panel front (FB) Figure 1-2 (P4)

3 DC446630-00l Button (FW) Figure 1-3

4 DC446630-002 Button (FB) Figure 1-3

5 DC343258-G02 HLMG assembly Figure 3-1 (P4)

6 DC343259-G02 STM assembly Figure 3-2

7 DC343262-G02 DLMG assembly Figure 3-3

8 DC34326l'-GOl Guide R assembly Figure 3-4

9 DC343260-GOl Guide L assembly Figure 3-5

10 DC343249-GOl Carriage (F) assembly Figure 3-6

11 DC24328l-G02 Bridge assembly Figure 3-7

12 DC343l56-GOl Handle assembly Figure 3-8 (P4)

13 DC343l56-G02 Handle assembly Figure 3-8

14 DC446807-G02 Spindle motor assembly Figure 3-9 (P4 )

15 DC446806-G02 Indicator LED assembly Figure 3-10

16 DC446808-G03 TKOO sensor assembly Figure 3-11

17 DC446808-G04 WP sensor assembly Figure 3-12

18 DC446809-G02 .Index sensor PT assembly Figure 3-13

19 DC446608-00l Plate, latch, F Figure 7-4 (P9)

2"0 DC446610-002 Hinge, plate Figure 7-5

21 DC4466ll-00l Ejector, kick Figure 7-6

Note: The PCB assemblies are listed in table 2 (P3). P: page

- 2 -

Table 1 Spare Parts List (con.)


parts list

22 DC446816-G02 Index sensor LED assembly Figure 7-7

23 DC446817-G01 Collect assembly Figure 7-8

24 DC342725-G02 Fastener kit See table 3

25 DC448090-G01 Micro switch assembly Figure 3-31

Note: The PCB assemblies are listed in table 2 (P3). P: page

Table 2 PCB Assemblies


parts list

1 DC447248-00-A PCB (peA, NAFHG) Figure 1-5

2 DC447248-01-B PCB (PCA, NAFHG) Figure 1-5

3 DC447248-02-C PCB (PCA, NAFHG) Figure 1-5

4 DC447248-03-D PCB (PCA, NAFHG) Figure 1-5

5 DC447248-03-E PCB (PCA, NAFHG) Figure 1-5

6 DC447248-04-E PCB (PCA, NAFHG) Figure 1-5 (P1)

Not~: The respective sections of each part number have the following meanings:

L....-..........----' - ~ - fA] t ~ PCB compatibility

~updated every time component locations are changed.

~-------------Manufacturing drawing number of PCB

- 3 -

Table 3 Fastener Kit

Corresponding

Part number Name Q'ty index number in illustrat-ed parts list

DCPS-112002-006 Screw, pan head, washered M3xO.5x6 BS 20 Figure 1-7 Figure 3-24 Figure 5-3 Figure 7-12

DCPS-112003-00l Screw, pan head, washered M3xO.5x8 FE 20 Figure 1-6 Figure 3-22 Figure 7-13

DCPS-112003-0l0 Screw, pan head, washered M3xO.5xlO FE 10 Figure 3-23 Figure 4-12

DCPS-112004-002 Screw, pan head M3xO.5x6 FE 10 Figure 3-27 Figure 7-10

DCPS-112004-003 Screw, pan head M3xO.5x8 FE 10 Figure 6-7

DCPS-112004-0l6 Screw, pan head M2.5x5 FE 10 Figure 4-11

DCPS-112005-009 Screw, pan head M3xO.5x6 BS 10 Figure 3-26

DCPS-112005-0l4 Screw, pan head M4xO.7x8 BS 10 Figure 3-25

DCPS-112009-00l Bolt, sockets M2x6 FE 10 Figure 3-29

DCPS-1120l9-008 Nut, hexagonal M3xO.5 BS 10 Figure 4-13

DCPS-132003-002 Washer, plain M3 FE 10 Figure 3-28 Figure 7-11

DCPS-132003-008 Washer, plain M3 BS 10 Figure 4-14

DCPS-132003-009 Washer, plain M4 BS 10 Figure 3-30

DCPS-132004-008 Washer, spring M3 BS 10 Figure 4-15

DC446754-00l Washer C 10 Figure 3-19

3M-PC Washer 10 Figure 3-21

DCPS-J20002-002 Ring, E, 4¢, SUS 10 Figure 7-9

DCPS-J20003-006 Clamp, wire HP-2N 10 Figure 7-14

- 4 -

Table 3 Fastener Kit (can.)

Corresponding

Part number Name Q'ty index number in ilillustrat-ed parts list

DCPS-J20004-00l Band, wire 10 Figure 8-D

.DCPS-172023-00l Clamp MM type 10 Figure 8-B

PS-100 Clamp 10 Fiqure 8-C

- 5 -

TJ2-G4302D

SCHEMATICS AND LOGIC MANUAL

CONTENTS

1. Flexible Disk Drive (Figure 1)

PCA-NAFHG (Figure 2)

2. Full Mechanism Assembly (Figure 3)

3.

STM (Stepping Motor) Assembly (Figure 4)

DLMG (Door Lock Magnet) Assembly (Figure 5)

Guide R Assembly (Figure 6)

Cartridge Guide Assembly (Figure 7)

Flexible Disk Drive Wiring Diagram (Figure 8)

(NOTICE)

The figures in the Illustrated Parts List are above or preceding the parts listings.

The quantity listed is the quantity used in one drive.

The index number is cross referenced to the figure and the corresponding list.

PAGE

1

3

4

7

8

9

10

12

Parts with circled index numbers are provided as maintenance parts.

Figure I , k Drive 'ble DlS FIexl

- I -

Fig. & index number

Figure 1

- 1

- @

- G)

- 4 - ® - 6

- 7

- 8

Part number

DC141400-G01

DC141400-G02

DC141400-G03,

DC141400-G04

DC141401~GOl

DC141401-G02

DC141401-G03

DC141401-G04

DC243225-G01 DC243225-G02 DC446630-001 DC446630-002 DC447255-001 DC447278-04-E DCPS-112003-001

DCPS-112002-006

DC447256-001

Description Qt'y

Flexible disk drive (M2896-63-00M)

Flexible disk drive (M2896-63-02M)

Flexible disk drive (M2896-63-00U)

Flexible disk drive (M2896-63-02U)

Full mechanism assembly 1 (See figure 3)

Full mechani$m assembly (1) (See figure 3)

Full mechanism assembly (1) (See figure 3)-

Full mechanism asse~ly (1) (See figure 3)

Panel, front, F (Ivory white) 1 Panel, front, F (Black) ; (1) Button (Ivory white) 1 Button (Black) (1) Nameplate (F) 1 PCA-NAFHG 1 Screw, pan head, washered 3

M3xO.5xO.8 FE Screw, pan head, washered

M3xO.5x6 Revision level (F)

- 2 -

BS 4

1

3

Figure 2 PCA-NAFHG

Fig. & index Part number Description Q'ty number

Figure 2 DC447248-04-E PCA-NAFHG

- 1 65625-114 #6 Connector, PWB (P3) 1

- 2 PS-32PA-D4LT1-A1 Connector, PWB (P2) 1

- 3 1-480271-0 Connector, PWB (J5) 1

- 4 IL-2P-S3FP2-1 Connector, PWB (J7) 1

- 3 -

Figure 3 Full Me chanism A ssembly

- 4 -

Fig. & index number

Part number

Figure 3 DC14140l-GOl

DC141401-G02

DC141401-G03

DC14140l-G04

- CD DC343258-G02

- (3) DC343259 .... G02

- CD DC343262-G02

- ® DC343261-GOI

- ® DC343260-GOI

- ® DC343249-GOI

- 0) DC243281-G02

- ® DC343156-GOI

DC343156-G02

- ® DC446807-G02

- @ DC446806-G02

- @ DC446808-G03

- © DC446808-G04

- @ DC446809-G02

- 14 DC141389-001

DC141389-002

- 15 DC343150-004

- 16 DC446561-001

- 17 DC446607-00l

- 18 DC446616-00l

- 19 DC446754-001

- 20 DC441073-004

- 213M-PC

- 22 DCPS-112003-00l

- 23 DCPS-112003-010

Description

Full mechanism assembly(M2896-00M)

Full mechanism assembly(M2896-02M)

Full mechanism assembly(M2896-00U)

Full mechanism assembly (M2896-02U)

HLMG assembly (See figure 4)

STM assembly (See figure 5)

DLMG assembly (See figure 6)

Guide R assembly

Guide L assembly

Carriage (F) assembly

Cartridge guide assembly

Handle assembly (Ivory white)

Handle assembly (Black)

Spindle Motor assembly

Indicator LED assembly

TKOO sensor assembly

write protect sensor assembly

Index sensor PT assembly

Frame (M2896-M)

Frame (M2896-U)

Spring BR

Clamp (F)

Plate, arm

Cartridge guide, stopper

Washer C

Guide, rod

Washer

Screw, pan head, washered M3xO.5x8 FE

Screw, pan head, washered M3xO.5xlO FE

- 5 -

Qt'y

1

1

1

1

1

1

1

1

(1)

1

1

1

1

1

1

(1)

2

2

1

1

2

2

1

16

3

(can. )

Fig. & index Part number Description Q'ty number

- 24 DCPS-112002-006 Screw, pan head, washered 2 M3xO.5x6 BS

- 25 DCPS-112005-014 Screw, pan head M4xO.7x8 BS 3

- 26 DCPS-112005-009 Screw, pan head M3xO.5x6 BS 2

- 27 DCPS-112004-002 Screw, pan head M3xO.5x6 FE 2

- 28 DCPS-132003-002 Washer, plain M3 FE 1

- 29 DCPS-112009-001 Bolt, socket M2x6 FE 2

- 30 DCPS-132003-009 Washer, plain M4 BS 3

- @ DC448090-GOl Micro switch assembly 1

- 6 -

II-i

5~

2

4

~IO Ii II

3

II~

6~ \ , \

Figure 4 STM (Stepping Motor) Assembly

Fig. & index Part number Description

number

Figure 4 DC343259-G02 STM assembly

- 1 DC4468l0-G02 STM Subassembly - 2 DC4468ll-GOl Band assembly - 3 DC343ll4-00l Sub frame - 4 DC3432l5-GOl Arm band - 5 DC446562-00l Holder, band (F) - 6 DC446563-00l Clamp, band - 7 DC446858-00l stopper, capstan - 8 DC446859-00l Dumper, STM - 9 DC446860-00l Spring, S - 10 DC446666-00l Spring, leaf (CR) - 11 DCPS-112004-0l6 Screw, pan head M2.5x5 - 12 DCPS-11200 3-0 10 Screw, pan head, washered

M3xO.5xlO - 13 DCPS-112019-008 Nut, hexagonal M3xO.5 - 14 DCPS-132003-008 Washer, plain M3 - 15 DCPS-132004-008 Washer, spring M3

- 7 -

Q'ty

1

1 1 1 1 1 1 1 1 1 1

-FE 3 1

FE BS 2 BS 2 BS 2

._-_'~L_""_""""'·

3

2

Figure 5 DLMG (Door Lock Magnet) Assembly

Fig. & index Part number Description Qt'y

number

Figure 5 DC343262-G02 DLMG assembly

- 1 DC343337-GOI DLMG subas sembly 1 - 2 DC4468l2-G02 Solenoid DL assembly 1 - 3 DCPS-112002-006 Screw, pan head, washered 2

M3xO.5x6 BS

- 8 -

3

4

Figure 6 Guide R Assembly

Fig. & index Part number Description Qt'y

number

Figure 6 DC343261-GO 1 Guide R assembly

- 1 DC343151-003 Spring E 1 - 2 DC343154-GO 1 Guide R 1 - 3 DC343160-001 Ejector 1 - 4 DC 4 4 6 618- 00 3 Cushion sheet 1

- 9 -

Figure

®- 3

7 Cartrl "de Assembly "dge GUl

- 10 -

®

Fig. & index Part number Description

number Qt'y

Figure 7 DC24328l-G02 Cartridge guide assembly

- 1 DC14l37l-00l Cartridge guide, F 1

- 2 DC446462-00l Spring, cup, A 1

- 3 DC446464-00l Washer 2

- ® DC446608-00l Plate, latch, F 1

- ® DC446610-001 Hinge plate 2

- CD DC4466ll-00l Ejector kick 1

- (j) DC4468l6-G02 Index sensor LD assembly 1

- ® DC4468l7-GOl Collect assembly 1

- 9 DCPS-J20002-002 Ring, E 4¢ SUS 1

- 10 DCPS-112004-002 Screw, pan head M3xO.5x6 FE 1

- 11 DCPS-132003-002 Washer, plain M3 FE 1

- 12 DCPS-112002-006 Screw, pan head, washered 1 M3xO.5x6 BS

- 13 DCPS-11200 3-00 1 Screw, pan head, washered 4 M3xO.5x8 FE

- 14 DCPS- J 20003-006 Clam, wire HP-2N 1

- 11 -

A

o

IIAII IISII "Cit "Oil

~ $:> 9 q§ Clamp, wire Clamp Clamp Band, wire Type HP-2N Type MM Type PSIOO Type SSTIM

Figure 8 Flexible Disk Drive Wiring Diagram

- 12 -

7. PACKING PROCEDURE

(One drive)

n V

- 4 -

(1) Insert the head protection sheet, close the door handle, and place the drive in the polyethylene sack.

(2) Fold the opening of the polyethylene sack, fasten it with adhesive tape, then fit buffers on both sides of the drive.

(3) Insert the drive(s) into the package, and fasten the cover.

(Two drives)

TJ2-G4314A

PACKING PROCEDURE

CONTENTS

Page

1. OBJECTIVE......................................................... 1

2. ENVIRONMENT AL CONDITIONS ........................................ . 1

3. HANDLING OF PACKAGED DRIVE ..................................... 1

4. UNPACKING AND PACKING ........................................... 1

5. PACKING FOR INCORPORATION IN SYSTEM ............................ 2

6. UNPACKING PROCEDURE ............................................ 3

7. PACKING PROCEDURE ................................................ 4

1. OBJECTIVE

This procedure describes the packaging of the flexible disk drive in its container and provides handling and unpacking instructions.

2. ENVIRONMENTAL CONDITIONS

(1) Vibration and shock: Less than 3.0 G

(2) Temperature: -10 to 50°C (-14 to 122°F)

(3) Relative humidity: 20 to 80% (noncondensing)

(4) Temperature gradient: Less than 20°C per hour

3. HANDLING OF PACKAGED DRIVE

(1) No more than ten drives should be stacked vertically. Observe stacking directions for the drives when stacking.

NOTE: Instructions are given on packing case.

(2) Handle with care.

(a) Do not throw packages.

(b) Do not drop packages.

(c) Do not store outdoors.

NOTE: Impacts or temperature extremes may seriously damage the drive.

(3) Be sure the drive does not get wet.

4. UNPACKING AND PACKING

(1) Unpacking

Follow the unpacking procedure given in section 6.

(2) Packing

Follow the packing procedure given in section 7.

- 1 -

5. PACKING FOR INCORPORATION IN SYSTEM

(1) Pack an entire system so as to satisfy the conditions shown in section 2.

(2) Insert the head protection sheet provided in the unit, and close the door handle.

- 2 -

6. UNPACKING PROCEDURE

(One drive)

- 3 -

(Two drives)

(1) Open the lid, and pullout the drive(s).

(2) Remove buffers.

(3) Take the drive out of the polyethylene sack, push the release button, and take out the head protection sheet.

HEAD PROTECTION SHEET

I ~7TI

'.

a

b

c

d

e

./

I

M2896-63 DISK DRIVE

SCHEMATICS AND

LOG Ie MANUAL

Sheet Tit Ie. Page Revision M2896-63 015(\ DRIVE WIRING DIAGRAivl -------------------'l8 ------- E M 2896 - 63 PC 8 N A FH G SC HE tvl AT I CS - - - - -- - - - - - - - - - - - --- - -- - - - - 0/ 8 -- -,- - -~-E . M·2·896 -63 . PCB NAFHG PART LOCATION 0 lAG RAM ---------------- 7/8 ----.-- E iv12896 -63 . SPI NDLE MOTOR ASSY SCHEMATIC ------------------- 8/s ------- E

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ELECT ATE 1/& ATE I/&

USED) f)R IvE SELECT -1 DRIVE SELECT -2

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,i So- k A 14 L.J \,1 c:B HLMG e . 814 g (BLU) 1"\

A15 L.J V 815 g (YEL) n (~ A16

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NOTE: ,--, , I '-- _----oJ

~ IXPT·

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OV\ .

~ BLMG

BLK---~

WHT ----REf) ----BLU ----

~.(BLACK ) ) B (WHITE

mz (RED) ~ (BLUE)

YEL - --- ~ (YELLO w) N) GRN -----~it(GREE

SH&'NS VF& QPTI&N

SCALE I fl=,~ 9 11 OA iE ~ 8 ;Ji .( 20) .~

NTS I . \v12896-63 0 15K DRIVE g+"'a. f;1ITSU8ISHI ELECTRIC CORPORATiON

WIRING Dli\G Ri\rvl I I

:t~ -:" ~.'"= I~ 0.,5 ,r-

APPROVED DP.AW~1

I ;'"":~ I ,." .So

-

A

B C a

E

b

c

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l --- '-- J r -r- I --I

-

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P3-A7 r-R/W- 0

P3-A6 R/W- 0

P3-AS ER-a l -'-C12

.Ol)L

---

P3-A4 GNf)- 0

P3-A3 -oCT- o r::z ~'"' I ~ "c..:.. GND

P3-Al GND

IHEA D 11 P3-87 R/w -1

P3-86 R/W-l

Ip3-B5 ,E R-l

JRS B4 OGND -1

P3-83 r"\CT - 1

PS2

~1 4) WRG ~~------~

-STEP 1-:2,6 RM 1 EOl

1.1 r- - - -.., 3 +5V ,_-..r-

STP

~--~---------~E~2~El~ ~04)

.--.---=-=~ 13 13 12,

STP ~------+-i-------~-----~~~ -DLtv1G

+IN.USE DSE

~-----~---------------------=~~-BS

® -r----i--+--------------------::~....:....!.....- +S IBE SEL

2 - :0-3:=--___ -:---'

2) (08) IT

- IN USE rJ~1_-~'~6 __ ~~

,_ R tv! 1 EOl +5~----'6

L ___ -1

150 18

+5V 150

-r5V R42 +5V Y , 3 N\1~

(lS74)b4 cv

'---=':-(:1 >-,~.....;;;;2~ S N 5

3 {) 10 6 T R C

1

SEL ~-+--------------------~~---HLD

~-----------------~~--CBO

~---------------~~---CUO

+5V

3VYRD3PEB2 ~10

C072 1 1

, R17~ 120_

/II

23

~'---'-'-~.....;.....;;..'""---'-- PS T

1 .--.2=-;R1 T1 R2 12

QD 2 1-='-8_--,

1---~---I(lS 39 3)

PST elK 20 ERGF2~4 __ +-~~~

CUO H 1 S F2'-'.-7 --+--~-'---'---'----C03 25 CBO

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p.-----=-.;;;,--=,""-+--t E02 fv10 R ? d +5 V '---_--"-11 S T P

~>-=l~-)--+-I,g G'+-: -----&G---'''~ " "---~'""<-lHL-D 1)06. SELECT 1

--DRIVE SELECT 2

- CRIVE 5EL=:CT .3

- {)F-.IVE SELECT 4

Jl-28

Jl- 30

Jl- 32

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I I

+5V +3.25 4~:O/ 6 21 USR v v r~~-------~(-3~8) E02 ~EUR , 4.7k

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1

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(LS04)

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I CQNTRGL CIRCUIT -,. (2/4)\

RDY ( 1/4)(4 I 4 '>

so 01, 2/4)

__ PSR ·2/4)

- PS T (2/4)

-DS -(2/4)

C09 .. 3 4

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1 k V~19 1/ 12.

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P2-A14 +HLMG

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I ~

CQNTR0L C IrCU I i\ IT-2 (3/4:

[WRITE PR'QTE

LE8-A

PTR-C

PTR-E

lED-K [INDEXYI]

LE8-A,o

PTR-Co/,

PTR-Eo

PTR-E1

LED-K1 (TKOO]

LE{)-A

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GR0UNO GR~Ut\8

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Gf;QUN{) J

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(2/4) _ I X (1/4)" WP

11~ ____ I 2 ~ IY: J B FCENt--~',13~ _____ - ________ ~(~2~1 4::!..-P2-A5 ~1~5~~~ __ ~ _______ ~

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C I

I 220ms I L _____ " __ ~

P2-87 ~ _I

WPT 4

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P2-B8

P2-A7 (2/4)

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P2-A9

P2-810

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(38) "

a

b

c

d

e

f •

D5

AS-1413 AS-1412-02

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I

o FG

A B

MB14079M

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Par 5 NO.

C44724

rrt)

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1.2 ~950 ~~~----------------------------~

c D E F

• ~ • e • Itrl

NOTE "1m" Ind icates plugged l\ ~" / nd ico tes tes t pain t. ( Term ina (s)

\~lool" Indicates option pins.

. a )E

A

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C ~

-

10 b

9

8 ~

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6 c

5 C> -

4

3 d

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