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NOVEMBER, 1999 Prepared by: ALVIE RODGERS C.E.T.
This training package is geared specifically to the 61HDX98B HDTV. However, most of
the material will cross over to the 60SDX88B progressive scan HDTV capable set. The
necessary understanding that the 60SDX88B requires a Set-Top-Box to receive SDTV and
HDTV signals is important. The 60SDX88B does NOT have a DM-1 module. This moduleis built into the 61HDX98B which allows this set to receive all ATSC formats as well as
Direct TV, NTSC, SDTV or HDTV. It does not have Component Inputs.
The 60SDX88B has a built in FLEX converter that translates any input into either 480P for
NTSC or SDTV and/or 1080I for HDTV. It does have Component Inputs.
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CONTENTSSECTION PAGE
DP-85 CHASSIS TRAINING and INFORMATION HDTV
1): GENERAL BLOCK DIAGRAMS, SECTION:
Power SupplyBlock Explanation --------------------------------------------------------- 01-01 Power SupplyBlock Diagram ------------------------------------------------------------- 01-02 DM-1 Module Front EndBlock Explanation -------------------------------------------- 01-03
DM-1 Module Front EndBlock Diagram ------------------------------------------------ 01-05
AV SelectorBlock Explanation ------------------------------------------------------------ 01-06
AV SelectorBlock Diagram ---------------------------------------------------------------- 01-07 System ControlBlock Explanation ------------------------------------------------------- 01-08 System ControlBlock Diagram ----------------------------------------------------------- 01-10 2H VideoBlock Explanation --------------------------------------------------------------- 01-11 2H VideoBlock Diagram ------------------------------------------------------------------- 01-12
Deflection Circuit Block Explanation ---------------------------------------------------- 01-13
Deflection Circuit Block Diagram -------------------------------------------------------- 01-16
CRT Block Diagram ------------------------------------------------------------------------- 01-17
Audio Output Block Diagram ------------------------------------------------------------- 01-18 Rear Panel Diagram ------------------------------------------------------------------------- 01-19 4X3 Displayed on 16X9 Four Possible Modes ------------------------------------------- 01-20
2): POWER SUPPLY INFORMATION, SECTION: Digital Circuit Power Supply SHUT DOWNBlock Diagram -------------------------- 02-01 Digital Circuit Power Supply SHUT DOWNCircuit Diagram ------------------------- 02-02 Digital Circuit Power Supply Visual Trouble Shooting LED'sDiagram ------------- 02-03 Digital Circuit Power Supply DistributionDiagram -------------------------------------- 02-04
Deflection and High Voltage Power Supply SHUT DOWN Block Diagram --------- 02-05 Deflection and High Voltage Power Supply SHUT DOWN Circuit Diagram -------- 02-06 Deflection Power Supply Visual Trouble Shooting LED'sDiagram ------------------ 02-07 Deflection Power Supply DistributionDiagram ------------------------------------------ 02-08
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CONTENTSSECTION PAGE
DP-85 CHASSIS TRAINING and INFORMATION HDTV
Digital Convergence OVERLAY Information -------------------------------------------- 06-02 Digital Convergence OVERLAY DIMENSIONS --------------------------------------- 06-03 Digital Convergence REMOTE CONTROLButton Identification ------------------- 06-04
7): MICROPROCESSOR Microprocessor PortDefinitions ...................................................................................... 07-01 Microprocessor Data Port Block Diagram ....................................................................... 07-03 Microprocessor Data Communications Block Diagram ................................................... 07-04
8): ADJUSTMENTS Adjustment Order ............................................................................................................... 08-01 I
2C BusAlignments in the Field........................................................................................... 08-02 Centering MagnetsLocation ...............................................................................................08-06 Pre HeatRun Condition .......................................................................................................08-07
Cut Offand Focus Adjustment ............................................................................................08-08 Digital Convergence Unit Crosshatch Phase ......................................................................08-09 Horizontal PositionCoarse Adjustment ..........................................................................08-10 Raster Tilt(Deflection Yoke) Adjustment ..........................................................................08-11 Beam AlignmentAdjustment ..............................................................................................08-12 Centering Magnet and Beam Shape Magnet Identifications............................................08-13 Static Centering and Center Adjustment ........................................................................ 08-14 Horizontal BlankingPhase Adjustment ..............................................................................08-15 Horizontal & Vertical SizeAdjustment ................................................................................08-16
TrapezoidDistortion Adjustment ....................................................................................... 08-17 Side PincushionDistortion Adjustment ..............................................................................08-18 Beam FormAdjustment ...................................................................................................... 08-19 OpticalSystem Alignment (Lens) ........................................................................................08-20
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CONTENTS
SECTION PAGE
DP-85 CHASSIS TRAINING and INFORMATION HDTV
Red and Blue 7X5Adjustment ..........................................................................................................08-34
Green 13X9Adjustment ....................................................................................................................08-35
Red and Blue 13X9Adjustment ........................................................................................................08-36
StoringNew Dig. Conv. Data ...........................................................................................................08-37
Magic FocusInitialization ................................................................................................................08-38
SMOOTH MODE
Change Screen F ormat to SMOOTH Mode and repeat steps below.
Green 7X5Adjustment (If necessary) ...............................................................................................08-33 Red and Blue 7X5Adjustment (If necessary) ...................................................................................08-34
Green 13X9Adjustment ....................................................................................................................08-35
Red and Blue 13X9Adjustment ........................................................................................................08-36
StoringNew Dig. Conv. Data ...........................................................................................................08-37
Magic FocusInitialization ................................................................................................................08-38
Static Centering Adjustment ..........................................................................................................08-39
Minor Digital Convergence Adjustment
Minor Adjustments Needed ............................................................................................................08-40
Accessing Digital ConvergenceError Codes ..................................................................................08-41Adjustments Continued
Memory Initialization Procedure .......................................................................................................08-42
9): TROUBLE SHOOTING
No Raster No Power ..........................................................................................................................09-01
A and B: No Relay Click, Def. Red LED Blinking ...................................................................09-02
C and R: No Red LED B+ ......................................................................................................... 09-03
D, E and F: All LEDs going off at the same time Def. and Power PWB .............. .......... ........ 09-04
G One LED going off a little before the others Dig. and Sig. Power PWB .............................. 09-05
DM-1Trouble Shooting Figure .......................................................................................................09-06 DM-1 Troubleshooting Checks ........................................................................................................09-07
DM-1 Waveforms used for Troubleshooting ..................................................................................09-08
DM-1 Video Waveforms Troubleshooting Checks ........................................................................09-08
Deflection Waveforms Troubleshooting Checks 09-10
ADJUSTMENTS CONTI NUED
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The 61HDX98B utilizes two switching power sup-
plies.
DP-85's stand by switching mode operation is different
from AP-7X and 8X chassis's. Switching frequency of
AP-7X and 8X chassis is dropped to 20kHz during
stand by mode. But the DP-85's power supply is not
dropped during stand by mode. DP-85's is operated
about 100kHz.
Normally Power Supply switching is operated as fol-
lowing.
T901: 25- 56 kHz (Normal)
100-200 kHz (Stand by)
TP91 30- 53 kHz (normal)
POWER SUPPLY UTILIZED FOR THE DIGI-
TAL AND SIGNAL CIRCUITS:
(Sub Power Supply PWB)This supplies power primarily to the Digital circuits, i.
e. DM-1 module. This supply runs anytime the set is
plugged into an AC outlet.
The voltages produced are;
+33V,
Power for the Satellite dish which is switched be-
tween 13V and 19V dependant upon the channel
being received.
Stand By 12V also called A12V TV9V
TV5V
3.3V
circuits.
6.3V to drive the CRT Heaters.
+28V for the Convergence, Velocity modulation
and Audio Out circuit.
+13V for Vertical.
-13V for Vertical and also converted down to
the 5V for the Digital Convergence Unit.
The TV9V supply generated from the Power Supply
for Digital listed above, is regulated down to +5V forthe Digital Convergence Unit and the A12V for the
Power Supply for Digital is used as a switched On/Off
for the Deflection Vcc by the Rainforest IC.
BLOCK DIAGRAM EXPLANATION POWER SUPPLY BLOCK
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IP01Main
SwitchingRegulator
EE49
Relay
Line
Filter
R
I901Sub
SwitchingRegulator
EE42
Line
Filter
STAND BY
C21V
R/F 28V
-7V
24.5V
SWITCHED
Def. +B V1&V235V
CRT &Vm Out
ConvergenceVelocity Mod.Audio Out
Convergence
Vertical
Vertical (M13)
DCU
Heater
ToSignalBlock
POWER SUB P.W.B.
DP85 POWER SUPPLY BLOCKDIAGRAM
Fuse
(130V) Reg
220V
+28V
-28V
+13V Reg.
-13V Sw. Reg.
-5V Reg.
6.3V
AC108-132V/60Hz.
AC Inlet Type
ToDe
flectionBlock
Page01-02
POWER DEFLECTION P.W.B.
+33VS Reg
-5V Sw. Reg.
28V
21V
Power Fail
L. NB Sw. Reg.
A12V Sw. Reg.
9V Sw. Reg. TV9V
5V Sw. Reg. TV5V
3.3V Sw. Reg.
3.3V Sw. Reg.
HVcc12VA12V
+5V Reg.TV9V DCU
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The 61HDX98B utilizes a non-repairable Front End
Assembly called the DM-1 Module. This module con-
tains the main System control center, NTSC Front
End, Direct TV Receiver and ATSC Tuner. The block
diagram indicates the internal blocks contained within
the Front End Assembly, hear after called the DM-1.
Starting counterclockwise from the upper left.
SATELLITE:This represents the Direct TV satellite dish connection
to the back of the set.
SATELLITE TUNER/IF:
This is the internal IRD, (Integrated Receiver and De-
coder). This receives the satellite signal from the LNB
(Low Noise Block) located on the Dish. This block
converts the signal to a usable signal for decoding.
SATELLITE CARD and SATELLITE LINK
BLOCK:To receive Direct TV signals, the customer is required
to insert an active Security Card into the back of the
set. This care contains a programmable chip that con-
tains the consumers information and the channels that
the consumer is allowed to receive. Also, this card is
used when billing information is retrieved by Direct
TV.
LINK/MIX:This block passes the particular signal that the cus-
tomer has decided to view on screen. Either the Direct
TV signal or the ATSC tuner.
line labeled Composite Video to the Signal Selec-
tor IC which selects the appropriate signal accord-
ing to the consumers choice. Either Tuner,
AVX1, 2 or 3 and/or S-In 1,2 or 3.
The NTSC audio IF signal is routed to the MTS
STEREO DECODER.
SPLITTER:
The splitter routes the NTSC signal out to the RF
Out PinP Tunerpath to the PinP Tuner.
MTS STEREO DECODER:
Decodes the NTSC Audio IF signal an decodes it into
Left Total and Right Total. This signal is routed to the
DolbyPro-Logic decoder.
HDTV LINK:
This block routs the ATSC signal received by the
ATSC tuner to the Link Mix.
NTSC YUV A/D:
This block receives the NTSC luminance and chroma
signals and converters them to a digital signal to be
utilized by the MPEG VIDEO decoder.
FROM MAIN MICRO:
This is communication in and out for the Sub-
Microprocessor. Information such as the Selector IC
selection, power on/off commands, etc.., are routedfrom the ARM/Transport or Main Microprocessor sec-
tion.
BLOCK DIAGRAM EXPLANATION FRONT END
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MPEG VIDEO DECODER, NTSC UPCONVER-
SION, OSD:
What ever signal is requested by the consumer as thesource for viewing is processed through this block and isoutput to the YUV D/As.
YUV/DAs:This block takes the digital signals provided to it and
converts them to an analog signal which is usable by the
signal processing circuits.All signals are routed out through the line labeled 2.14
YUV/YIQ, (NTSC Signal up converted to 480P or 2.14HYPBPR which is the HDTV output as 1080I.
MPEG/AC-3 AUDIO DECODER:This block processes the audio component from the
ARM/TRANSPORT or the block A/Ds AUDIO, whichis the NTSC audio processed by the Pro Logic decodingcircuit, labeled as 5.1, (Front Left, Front Right, Center,
Rear Left and Rear Right + Sub Woofer audio also calledLFE. Then this block processes the signal and outputs allaudio to the Audio D/As.
AUDIO D/As:This block is the Digital to Analog converter which con-
verts the digital audio signal sent to it by the ARM/TRANSPORT block and converts it to a usable analogsignal to be processed by the audio output section.
The audio labeling is comprised of the following:L/R= Audio Front Left and Right
LS/RS= Rear or Surround audio Left and RightC/LFE= C for Center and LFE for Sub Woofer, alsocalled Low Frequency Effects.
BLOCK DIAGRAM EXPLANATION FRONT END
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SATELLITE
TUNER/IF
SATELLITE
LINKLINK
MIXHDTV
LINK
HD/NTSC
TUNER/IF
SPLITTER
MTS
STEREO
DECODER
NTSC YUV
A/D
ARM/
TRANSPORT
DRAM
ROM
NRSS/ISO7815
MPEG/AC-3
AUDIODECODER
MPEG VIDEO
DECODER
NTSC
UPCONVERSION
OSD
YUV
D/As
SRAMA/D's
AUDIO
EEROM
AUDIO
D/A's
SD-A/V MODEM
PhoneSD-Satellite
Card
DM -1 M odu le
Satellite
RF OutPinP
Tuner
Cable
Terrestrial
L/ R CompositeVideo
1HYIQ FromMainMicro
L/RLS/ RSC/LFE
L/R
Data
AddressHandshake
5.1 Audio
DP85 FRONT ENDBLOCK
From Main Micro
2.14YUV/ YIQ2.14 HYPBPRP
age0
1-05
VSB
IR from Ft. PanelDimmer, AD, Key In
To 2H Video Circuit
Digital
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C. VIDEO (MAIN) and R/L (AUDIO MAIN):
NTSC Video and NTSC Audio is routed from the
DM-1 Block diagram. They are shown in the Block
Diagram as one line, but they are separate signals.
Anytime a signal is routed from the DM-1 or going to
the DM-1 module, they must be sent through a DM-1
I/F block. This block reduces the noise by a noise can-
cellation process. This process uses the output of a
comparator and routes the output back to the negative
input to subtract the noise. It also level shifts the signalto make it useable by the circuit to which it is routed.
DM-1 I/F BA4558:
This is the noise cancellation and level shift block.
AUDIO/VIDEO SELECTOR TA8851BN:
This is the selector IC. Dependant upon the customers
viewing preference, the DM-1 will communicate via
I2C bus communications and select the NTSC signalwhich is sent to the demodulator. The demodulator
prepares the NTSC signal for the DM-1 module.
This IC selects the following inputs;
Main tuner
Video One, Two or Three
S-In One, Two or Three
PinP Video and Audio outputs. This can be any of the
input provided above except the PinP has its own
tuner.
Note: PinP isnt available when the customer has se-
lected Direct TV or ATSC as its source. This is be-
cause, as will be shown later,the PinP Video is super
exposed upon the NTSC video only
BLOCK DIAGRAM EXPLANATION A/V SELECTOR
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A/V SELECTOR BLOCK DP85CHASSIS
TERMINAL P.W.B.
Comp. Video (Main) R/L (Main)
PinP Video andMonoAudio
C. Video (Main)R/L (Audio Main)
Selected L/ R(NTSC Main Audio)
Video 4 V4, S4, L/R4PinP Videoto PinP Unit
Video D YCTo 3DYC
9V
DM-1I/F
B4558
AUDIO/VIDEOSELECTORTA8851BN
PinPTuner U001
RF from DM-1
VT+33VLockClockDataEnable
+5V +9V
PinPVideoMono
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MAIN VIDEO FROM SELECTOR IC:
At the bottom left hand side is shown the Main Video
from Selector label. This is the NTSC video from the
selector IC. This is routed to two blocks.
3D Y/C:
The 3D Y/C separates luminance from the chroma. It
also add the 3D effect, (if the 3D Y/C is turned on
within the menu). Noise is canceled and the two sepa-rate components are output to the Video/Chroma De-
modulator.
VIDEO/CHROMA DEMODULATOR:
This IC decodes the signal down to its Luminance and
Chroma. components and outputs it as 1HYIQ.
DM-1 I/F:
Noise cancellation and level shifting preparing the sig-nal for the DM-1 module.
1HYIQ:
1HY = Standard NTSC format luminance. (Also
known as 480I).
I and Q = Standard NTSC format, demodulated
chroma components.
SYNC DET.:Separates the Sync signal from the composite video sig-nal.
SYNC DET.:
the signal in one of 4 ways.Normal: This will display a standard 4X3 picture
with black panels on each side of the picture.Fill: This will expand the picture to fill the screen.The top and bottom will be cropped.
Full: This will expand the picture side ways and fillthe screen. However the picture will be non-linear.Smooth Wide: This will keep the center of the pic-
ture linear and stretch the outside edges to fill thescreen.
With the four choices above, the DM-1 module controls
the signal for 3 of them; Normal, Fill and Full. However,during Smooth Wide, the deflection circuit is switched to
perform the stretching of the sides. The slave Microproc-
essor outputs S.Wide during this time.
CUT OFF:= Output; labeled as V. Stop, during the Ser-vice adjustments for Cut Off, (Screen Background con-
trols), the vertical must be collapsed. This output causesthe B+ to the vertical output IC front end to be groundedand grounds the vertical trigger pulse called V. Saw.
D. SIZE:= Output; labeled as Digicon Size, duringSmooth Wide mode, the Digital Convergence Unit, hearafter called DCU, must know that the set is in the dis-
torted deflection mode. This signal tells the DCU justthat.
MAGIC SW:= Input; when the customer presses theMagic Focus button on the control panel, the DCU noti-
fies the slave micro. That it is busy performing MagicFocus. The slave micro. Notifies the DM-1 module and
BLOCK DIAGRAM EXPLANATION
SYSTEM CONTROL AND SIGNAL PROCESSING
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selection to activate AFC.
MAIN SYNC DET.= Input; This input is used for Ser-vice OSD positioning and Auto Programming channeldetection.
PinP SYNC DET.= Input; This input is used for judge-ment of the Slave Microprocessor to determine the AFC
Loop activity of the PinP Tuner.
MUTE (Audio):= Output; during channel change, ex-ternal video selection with no input, power up or poweroff, and loss of Vertical Blanking, the audio and videoare muted.
V.MUTE (Video):= Output; during child lock, channelchange, or power on/off, the video is muted.
POWER:= Output; when the front power button or theremote power button is pressed, the DM-1 module noti-fies the sub-micro. And the sub-micro. Outputs a poweron/off command to the relay driver Q-007. Outputs high
for ON and low for OFF.
OSD & OSD BLK:= Output, this is the on screen char-acters for the Service Menu only. OSD Blk is OSD
blanking. This cleans us the video where the OSD is tobe inserted.
HV BLK: = Input; this inputs are utilized by the Micro-processor for Service OSD positioning.
of a quad Or Gate and outputs the signal to be superim-posed upon the video signal path from the DM-1 Mod-
ule.
PinP VIDEO FROM SELECTOR IC:The video fromthe PinP tuner is routed to the PinP unit and the Sub Mi-croprocessor for Closed Caption decoding.
BLOCK DIAGRAM EXPLANATION
SYSTEM CONTROL AND SIGNAL PROCESSING
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TV uCOMMicroprocessor
DP-85 CHASSIS SYSTEM CONTROL & SIGNAL PROCESSINGBLOCK
SIGNAL P.W.B.
Page0
1-10
H Sync
PinPSync Det.
PinP V
F PanelMain Sync DetPinP Sync DetMute (Audio)V.Mute (Video)PowerOSD & OSD Blkfor Service Menu
HBlkS. Wide
Cut. OffD. Size
Magic Sw.Closed Cap. Data
MEMORY I2C
I2C
VIDEO/CHROMA
DEMOD
3DY/CUnit
PinPUnit
Sync Det.
Sync Det.
DM-1
I/F
OSDMIX
+
Digital OSD / Busy
OSDRGBYs
OSD
RGB
Ys
V Sync
I2
C
Y/ C
Y
PinP
Video
Y/ C
PinP Video from SelectorIC
1 H CompositeSync
1HYIQ
Main Video from Selector IC
YIQ
YIQ
MixClamp
AD8056
CCDV
ideo
Main
CCDV
ideo
PinP
H BLK PH
HV BLK
Side PanelAPLfrom 2HVideo PWB
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The 2H Video PWB is similar to the Rainfor-est circuits used in the past. The YUV/YIQ
(480P) and/or the Y-PR/PB (1080I) is routed
through another DM-1 Interface IC for noise
cancellation and level shifting and into theRainforest chip, IX01. Here the signal is pre-
pared for the CRTs. Pedestal level detection,
Chroma preparation, OSD RGB from eitherthe DCU or the Slave Microprocessor is input
here.
Remember that the OSD for Customer usagesuch as the Channel numbers, clock, Main
Menu, etc.. is generated by the DM-1 Mod-
ule.
Also, ABL controls the brightness andContrast; as well as the color level at this
chip.
The Velocity modulation control signal is
produced from the Rainforest IC. This signalis a representative of the Peak White compo-
nents of luminance and drives the Velocity
Modulation coils on each CRT.
BLOCK DIAGRAM EXPLANATION 2H VIDEO
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YUV/ YIQ/Y PB PR
RGB PROCESSORTA1276AN
2 H VIDEO BLOCK DP-85CHASSIS
2H VIDEO P.W.B.
YUV RGB+9V
RGB
APLDETECT
HV Blk HBLK PH
DM-1
I/F
+5V -5V
2 14 HV SYNC
2.14
HVSYNC
SPANEL
Side PanelAPL
+5V
Clamp H/ V Blk.
VM
YUVYIQYPBPR
Y
YUV/ YIQ/Y PB PR
2.14 HV SYNC
OSD RGBABLI2C
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The 61HDX98B deflection circuit differs from con-
ventional Hitachi product. It utilizes in a sense, two
horizontal output circuits. One for Deflection and on
for High Voltage. The notations around the Block dia-
gram will be described in a counter clock wise fashion
as best a possible.
CUT OFF:
Cut of collapses the Vertical circuit during I2C Bus
alignments, during CRT Set Up.
I2C:
Communication from the Sub Microprocessor I001
during sweep variations due to Standard/NTSC 480P
mode and 1080I High Definition mode.
ABL:
ABL voltage is generated by monitoring the current
through the flyback transformer. This voltage willfluctuate down when the scene is bright and up when
the scene is dark. The ABL voltage will manipulate
the screen brightness and contrast to prevent blooming
under these conditions.
HV SYNC:
The composite sync is routed into the Sync processor
which determines the sweep condition for the signal
being provided.
H and V BLK:
Horizontal and Vertical Blanking is developed within
the Deflection circuit. The Horizontal Blanking pulse
Busy notifies the sub Microprocessor I901 which in
turn notifies the DM-1 module that the DCU has en-
tered the DCAM. During this time, the DM-1 module
ignores the remote control commands.
MAGIC SW:
When the customer presses the Magic Focus button on
the front of the set, it produces a command for the
DCU to begin the Magic Focus process.
D SIZE:
Digital Size is a control signal for raster enlargement
when MAGIC FOCUS is operated. Raster enlarge-
ment is required for the MAGIC FOCUS PATTERN
to hit the photo sensors.
This signal is output from DCU and input to the Sub
Microprocessor I901. The Sub Microprocessor con-
trols the I702 on the DEF.SUB PWB) for enlarging
raster size.In case of AP-85, this control signal is called "A.
SIZE". It's the same function between DIG.SIZE and
A.SIZE.
S WIDE:
Smooth Wide is a condition entered through the Menu
by the customer while watching an NTSC 4X3 aspect
video source and the customer wants to fill the screen.
TO CONVERGENCE YOKES:
The DCU provides compensation signal for deflection
abnormalities to the convergence output IC. The Con-
vergence output IC in turn, amplify the signals and
BLOCK DIAGRAM EXPLANATION DEFLECTION BLOCK
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is superimposed upon the static focus voltage to com-pensate for beam shape abnormalities which occur on
the outside edges of the screen because the beam has
to travel further to those locations.
HV PARABOLA:
Described above.
SCREEN 700V: 700V Supplied to the screen grids on
the CRTs.
FOCUS 9KV:
Focus voltage supplied to the CRTs.
32Kv HV:
32,000 volts DC supplied to the CRTs anodes.
TO DEFLECTION YOKES:
Horizontal and Vertical deflection wave forms driving
the deflection yokes.
I NTERNAL BLOCKS DESCRIPTI ON
HV CONTROL:
The uPc1344C IC generates the horizontal drive signal
utilized by the High Voltage circuit. The HV control
IC receives its locking pulse from the Deflection cir-
cuit. A feed back voltage is sampled from the High
Voltage Regulation Detector circuit and comparedwith a reference voltage to maintain an accurate 32KV
on the CRTs.
I702 on the Sub Deflection PWB generates the Verti-cal Saw signal. This signal is controlled by several
factors. The Sync Processor detection and I2C data
communication.
DIST CONTROL:
Distortion control is another signal produce by I702
and sent to the Side Pin cushion circuit. These com-
pensation parabolic wave forms are combined with the
horizontal circuit to compensate for Side pincushionerrors.
H-SIZE SIDE-PIN CONTROL:
This circuit generates the Side Pincushion Distortion
compensation pulse which is impressed onto a coil
located in the output side of the Deflection Output sec-
tion and compensates for Pin Cushion distortion.
HORZ. DRIVE and HORZ. OUT:
This circuit comprises the Drive and Output for the
Deflection output circuit.
S-CORRECT (SMOOTH MODE):
During Smooth mode, the deflection circuit is manipu-
lated so that the outside 1/3 of the picture is stretched
to fill the screen. The center 2/3 of the picture is left
undistorted. When an S Wide signal is received, a ca-
pacitor is switched off on the output side of the De-
flection output circuit.
PHOTO SENSOR:
There are 8 sensors located on the internal outside
BLOCK DIAGRAM EXPLANATION DEFLECTION BLOCK
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vice Switch is pressed. This switch is located on thedeflection PWB. By removing the front speaker grill,
the Service Technician has access to this switch.
CONV. OUT:
The Convergence output block represents the two (2)
Convergence output ICs. These two ICs contain the
amplifiers for the Red, Green and Blue convergence
outputs.
HDT T752:
Represents the Deflection output transformer. By
separating the Deflection circuit from the High Volt-
age, any distortions that would be generated by fluc-
tuations within the High Voltage wont be visible
within deflection.
DYNAMIC FOCUS OUT:
This circuit amplifies the parabolic signals provided
by the Deflection circuit and I702 on the Sub Deflec-
tion PWB and impresses these wave forms onto the
static DC voltage use for focus. This keeps the beam
as sharp or focused as possible in the corners of the
screen.
HIGH VOLTAGE REGULATION DETECTOR:
This circuit monitors a feed back voltage produced
from the High Voltage Flyback transformer and routes
an output signal to two circuits.1.) A sample voltage is sent to the Horizontal Driver
IC for regulation of the High Voltage and;
2.) If the High Voltage climbs too high, a shut down
BLOCK DIAGRAM EXPLANATION DEFLECTION BLOCK
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DP-85 DEFLECTION BLOCKDIAGRAM
Page01-1
6
HV Control
(uPC1344C)
HV DRIVE
(MC3415IP)
HV OUT
(IMB12-140)
FBT
THO1HIGHVOLTAGE
REGULATION
DETECTOR
DYNAMIC
FOCUS OUT
2SC4686X3
FOCUS
PACKVERTICAL
OUT
LA7648
SYNC.
PROCESSOR
DIST.
CONTROL
H-SIZE
SIDE-PIN
CONTROL
+
S CorrectedV-SAW
DC couple
/3
HORZ.
DRIVE
HORZ.
OUT
S-CORRECT(SMOOTH MODE)
SENSOR
DISTRIBUTION
PHOTO
SENSOR
SERVICE
SWITCH
CONV.
OUT
+
Focus(9KV)
Screen(700V)
+
ABL
6/
8/
/ 8
DIGITAL
CONV.
UNIT
+B (130V)
34v, -34v
6/
HVParabola
1100V
Vcp
+26V,
26VS Wide
S Wide
D Size
Magic SW
V
Blk
H Blk
HV
Blk
DigRGB
Bu
sy
IR
H Blk
V Parabola
Saw
Size RegulationControl
VERTICAL
RAMP
GEN.
DiodeModulator
To Deflection YokesTo Deflection Yokes 32KvHV
Focus12Kv
3/
/3
DFOut
Retrace Pulse
HDT
T752
Cut Off
I2C
I2C
ABL
HV Blk
IR
Dig RGBBusy
To ConvergenceYokes
HV Sync
H Drive
Deflect ion Tran sform er
High Vol tage
Trans former
FromuP
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VIDEO OUTPUT
AMP
CPT P.W.B. (R)
VM OUT
VM OUT P.W.B.
SCREENFOCUS CONV.
VIDEO OUTPUT
AMP
CPT P.W.B. (G)
VIDEO OUTPUT
AMP
CPT P.W.B. (B)
Def.
Yokes
30KV
HV
R
G
B
Beam Shape, Beam Alignment,Focus, VM Coil,
Deflection and Convergence Yokes
Page01-17
DP-85 CRT PWB BLOCK DIAGRAM
RGB
VM
220V
12V
220V
12V
220V
12V
220V
26V
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DP-85 REAR PANEL (61HDX98B)
DSS IN
SMARTCARDSLOT
TelephoneInterface
DM-1 MODULERear Panel 1
ANT B
ANT A
L
VI DE O
(MONO)
AU DI O AU DI O AU DI O
(MONO)
VI DE O VI DE O
INPUT 1 INPUT 2
L
R
S-VIDE O S-VIDEO
L
R
L
R
+
-
L
-
+
R
+
-
R
-
+
TRANSMITTEROUT
R L
R L
FIX/VARIABLEOUT
INT.
EXT.
FRONT SPEAKER8 ONLY
REAR SPEAKER8 ONLY
LFE/SUBWOOFER OUT
INPUT 3
(MONO)
Page01-19
AC-3 Jack
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Linear
Linear
Stretched Stretched
FILL MODE (4x3)
Deflection Circuit remains at 33.75KHz for all modes, (NTSC & SDTV =540P, HDTV =1080I. (Labeled in schem ati c as 2.14H )
Slightlyaboveblack
to avoid4X3
burningan image
Page01-20
Side PanelSide Panel
Cropped
Cropped
DP-85 CHASSIS 4 MODES TO DISPLAY A (4x3) IMAGE ON (16X9) DISPLAY
DM-1 Module controls the video content for Normal, Full and Fill modes,
while the deflection circuit is manipulated for the Smooth Wide mode.
NORMAL MODE (4x3) FULL MODE (4x3)
SMOOTH WIDE MODE (4x3)
Full Mode 4X3 Stretched to fit (Non-Linear)Normal Mode 4X3 with Black Mask (Linear)
Fill Mode 4X3 Cropped (Linear)
Smooth Wide Mode 4X3 Center (Linear)
Outside edges Stretched to fit (Non-Linear)
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DP-85 DIGITAL CIRCUIT POWER SUPPLY SHUTDOWN BLOCK
I905
Photocoupler
I901
ShutDown Pin (7)
on Power Supply
Driver &
Output IC
7 3 2
Shut Down SCR
+5V Short Det.+3.3V Short Det.
+9V Short Det.-5V Loss Det.
+3 3Vs Too Hi Det+5V Too Hi Det
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DP-85 DIGITAL CIRCUIT POWER SUPPLY SHUTDOWN DIAGRAM
I905Photocoupler
I901ShutDown Pin (7)
on Power Supply
Driver &
Output IC
DIGITAL & SIGNAL
POWER SUPPLY SHUT-DOWN
Active Low
D908Red LED
Shut Down
IdentificationR919
STBY +12V
R9A
0
D958
Q916
Vcc
Q917 D972
D925
+5V
+9V
7 3 2Q913
ShutDown
S.C.R.
D953D952R975
TV 5V Short Det.
TV 9V Short Det.
-5V Loss Det.
B
E C
PQS1
OffOn
OffOn
No Start Up B+ = Off
Normal = Glowing
Blinks during Shutdown because
of the internal current draw.15.1V ~ 22.5V pin 5 I901
DIGITAL & SIGNALPOWER SUPPLY SHUT-DOWN
Active High
5
R907
R908
D964
1/2 AC In
D905
Run B+
Start Up B+
NOTE: +12VS is the same as A12V and STBY12V
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R919
7
I901Driver/Output IC
I905
100% Dead Time &IC B+ Detection
5
Osc B+
4R916
I905 Shutdown
Photocoupler
Q913
Shutdown
SCR
D908 is a RED L.E.D.
Off = No I901 B+
On (Mid) = I901 B+
On (Bright) = Shutdown
R928 R945
TV 9V
R9E3
TV 5V
R927
AudioF/R 28V
R956
+12VS
R939 R965
+5VS
R966
-5VS
DP-85 CHASSIS L.E.D. (VISUAL TROUBLE DETECTION) DIODES
(SUB POWER PWB) DIGITAL POWER SUPPLY 10 GREEN L.E.D.s and 1 RED L.E.D.
(11 Total L.E.Ds. for visual trouble sensing observation)
3
1
2
Vcc
ALL GREEN L.E.D.s
12 Shut Down
Inputs
Start Up or Run
24.2V
1.9V
24.2V
1.9V
AudioCenter 21V
LNB Power
13V/19V
R969
+3.3VS
R972
D3.3V
Page0
2-03
D947D920 D930 D971D919 D928 D924 D943 D962 D945
D908
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DP-85 DIGITAL CIRCUIT POWER SUPPLY DISTRIBUTION DIAGRAM
Page
02-
04
ProtectorE996 : 5K
Rectifier
+28V : D911
Rectifier
+24V, 5:D914
Voltage
Control24, 5V
Q915
Switching
Transformer
T901
FUSEF901
SwitchingControl
I901
Feedback
I904
Protect
I905TV ON/OFF
SwitchQ914, Q918
ProtectorSCR: Q913
D908:Protect Red LED Over
VoltageDetector
"D"
Short CircuitDetector
D
ZD
33VS :
+33V
Audio
+21V
STAND BY +12V
CENTER +21VD920 : C21
D925:14.7VD928 : +12V
D930 : TV9V D925:
10.8V
D933 : >6.7V
Protector
E995 : 7K
Protector
E994 : 7K
Rectifier
+21V : D912
Rectifier
+35V : D918
REAR +28VD919 : F28
DP86Only
= RED OR GREEN L.E.D.
A12V
RelayS902
RelayS903
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DP-85 DEFLECTION POWER SUPPLY SHUTDOWNBLOCK DIAGRAM
-M13V
Heater TooHigh Det.
QP05
ShutDown
S.C.R.
IP06Photocoupler
IP01ShutDown Pin (7)
on Power Supply
Driver &Output IC
220V Short Det.
Heater
Short Det.
DP23
DP34
Flyback
Excessive
DP25
X-RAYPROTECT
QP06
Deflection B+ (130V)
Excessive Voltage Det.
Deflection B+ (130V)
Excessive Current Det.
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DP-85 DEFLECTION POWER SUPPLY DISTRIBUTION DIAGRAM
Page0
2-08
ProtectorEP96: 7K
ProtectorEP97: 7K
ProtectorEP95: 7K
ProtectorEP94: 7K
ProtectorEP93: 5K
ProtectorEP92: 4K
Rectifier+220V:DP07
Rectifier+7V:DP08
Rectifier+15V:DP09
Rectifier+15V:DP10
Rectifier+28V:DP12
Rectifier-28V:DP13
Rectifier+130V:DP11
Regulator+6.3V: IP02
Regulator+13V: IP03
Regulator-13V: QP01
ProtectorEP96: 7K
SwitchingTransformer
TP91
ProtectorEP91: 4K
SwitchingControlIP01
FeedbackIP05
ProtectIP06
Voltage Control+130V: IP04
Protector
SCR: QP05
DP06:ProtectRed LED
HVccSwitchQP08
HVcc+12V
PowerOn/Off
DP-85 DeflectionCircuit Protection
Protect In
OverVoltageDetector
ShortCircuit
Detector
D
D
D
D
D
D
D
ZD
ZD
ZD
ZDDeflection
+130V
Conver:-28V
Conver:+28V
Vert:-13V
Vert/HVcc:+13V
Heater+6.3V
DP22: +130V QP04: >1.4V
DP21: -28V DP25: >-24V
DP20: +28V DP31: -13V
DP15: +13V DP30: 20V
DP36,DP37:32V
DP18:>166
V
Video
+220VPower Supply
Block
Live Cold
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QP08
I001
Slave MicroPower On/Off
DM-1
ModulePower On/Off
by Remote orFront Pannel
53
Q007
PQS1
3
A12V
1
2
I7021
I701
23 DVccVRef-In
Power ON
Driver
(Relay Driver)
DP-85 DEFLECTION Vcc PRODUCTION CIRCUIT
Other Power
On/Off Circuits
PQD2
5
5
DP41
Start Up Power
DEFLECTION PWBSUB POWER PWBSIGNAL PWB
From I907 A12V Reg.A12V or STBY +12V
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HV Sample
I702
18 16H Out
17 FBP In
AVCCSwitched AVCC
29Osc.
26 H. Sync In
Q701
PDD1
7
6
1 7
8130V V1
1112
Def.H Pulse
+28V
+28P
Q751
1
3
28V
Q777T751
H. Def. Yoke G
H. Def. Yoke B
H. Def. Yoke R
T752
4
6
C770
C771
Q755PSD2
6To I001 OSDPosition
To PinPUnit
H.Blk.
9
To Convergence Circuit
To Sweep Loss Det. Circuit
IH01
1 A1Q1 12
IH0210 Osc 7
Error13
Clamp
12 14
1
Drive
9
10
HighVoltage
TH01
QH08 QH01
QH09
QH10
130V V2
12
QH05
QH04FBP In
Ref. V.
QH06HV Sample too HighX-Ray Protect
DP-85 SERIES CHASSIS HORIZONTAL DRIVECIRCUIT
Page0
3-01
To Side Pin Circuit
To Dynamic Focus
To Deflection Loss
To X-Ray Protect
910
M28V
M28P
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Signal
PWB
DP-85 CHASSIS A.B.L. CIRCUIT DIAGRAM
DX02 RX82
CX39
45
3
B+
To
Focus
CH25
C
RH59RH58
High Voltage B+
130V V2
13V
9V
RX78 RX80
IX01
Rainforest
ICABL
SDA2
PSZ2
SDA216
To Anodes
ABL
To QH01
Collector of Horz.
Output Transistor
Signal Sub
PWB
Deflection PWB
Clamp
ABL Pull-Up Resistors
As Brightness goes Up, ABL Voltage goes Down. (Inverse Proportional)
[Current Path ]
QX14RX79
CX21RX81
9
27
See uP
Data
Signal
Path
Page04
-02
DH33
RH23
RH22
QH03
CH18
See XRay Protect
RH56Deflection B+ 130V
V1
PSD2
1
DX01 CX20
CX24PSZ1
SCL2SCL2
17 28
TH01
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PSU1
16
15
VMUTE2DS20 DS21
QS05
CS86RSH3CS73
MUTE2DS22 DS23
QS06
CS87RSH4CS74
Transmiter Right
Transmiter Left
VMUTE2
DS24 DS25 QS11
CS84RSH1CS77
MUTE2
DS26 DS27QS12
CS85RSH2CS78
Fixed/Variable Right
Fixed/Variable
Left
CS83CS82
DP-85 MUTE CIRCUIT DIAGRAM (SURROUND PWB)Also see Audio and Video Mute Circuit Diagram
Also see Mute Circuit Diagram (Audio Output PWB)
Transmiter Right
Out
Transmiter Left
Out
Fixed/Variable
Right Out
Fixed/Variable
Left Out
RSC6
RSC4
RSC5
RSC7
RSF2
RSF4
RSF5
RSF3
RSF8
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H. SIZE1350
46.7
26 119 269511910710710710410411495
DIGITAL CONVERGENCE OVERLAY DIMENSIONS
BR
H. SIZE
V. SIZE
Centering Offset
1350
41
49
97
97
97
97
97
97
4941
20 88 113.4 2088113.4113.4113.4113.4113.4113.4113.4
762
DIGITAL CONVERGENCE OVERLAY FULL MODE
DIGITAL CONVERGENCE OVERLAY SMOOTH MODE
Part Number H312182A
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"MOVE" = "RASTER ADJ"
Used to align Red and Blue
raster with Green.
(2 Additional lines will Appear)
DP85 SERIES CHASSIS "CLU-614MP" REMOTE CONTROL
REMOTE PERSONALI TY WHI LE I N THE
DIGITAL CONVERGENCE ADJUSTMENT MODE D.C.A.M.
V O L C H
MUTE
LAST
TV / CABLE / SAT
V C R
AU DI O
GUIDE
INFO EXIT
L
I
GH
T
T V S A TCABLE
DT V /SAT S W A PPI P
PIP CH M O V EA N T
P O W E R
"PIP" = "ROM READ"
Reads old R.O.M. data.
(Last data stored in R.O.M.
(Press 2 times)
"SWAP" = "ROM WRITE"
(STORE)
Stores data into R.O.M..
(Press 2 times)
"PIP CH" = "INITIALIZE"
Perform after
STORE&before EXIT
[SWAP + PIP CH]
"MENU" = "REMOVE COLOR"
Removes color
not being adjusted.
(Will NOT remove GREEN )
"ANT" = "PHASE"
(Aligns Cursor to Grid)
"INFO" = "CALCULATION"
(Calculates mid-points)
"EXIT" = "ENTER & EXIT"
Enter or Exit the D.C.A.M.
Must initially enter D.C.A.M. with
Service Button on chassis.
(Press 5X)
Toggles between External Video
and Internally generated Cross
hatch. After exiting the DCAM,
set can change channels or
To Clear R.A.M. data.
Turn set OFF.
Press and hold the Service Button on
deflection P.W.B. Then Power
Button.
*
*
D.C.A.M.
Digital convergence adjustment
mode
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Page07-01
DP-85 CHASSIS SLAVE MICROPROCESSOR I-001 PIN/PORT DESCRIPTIONPin No. ID Port Identification Function Active
1 HSYNC OSD H. Pulse Receives Horizontal Blanking pulses 5VP/P for Service OSD positioning Pulse
2 VSYNC OSD V.Pulse Receives Vertical Blanking pulses 5VP/P for Service OSD positioning Pulse
3 AD4 AFC Receives the AFC S-Curve signal produced by the PinP tuner indicating the accuracy of the PinP tuning. Signal
5 TIM2 PIP Sync Det Detection of PinP Tuner Sync for Auto Programming and AFC Low
6 P43 AC (50/60 Hz) Detection of A/C line frequency from Schmitt Amp Q015 and Q016 Pulse
7 AD3 Side Panel APL Timing Pulse input for OSD creation of Side Panels Pulse
8 AD2 Dimmer (Not Used) n/a
9 P26 V.STOP Cutoff. This output Stops the Vertical circuit and shuts off the Spot circuit High
10 P27 CH Change Mute Mutes Audio through Q022 to Surround PWB during channel change High
11 PWM4 H.BLK-HP Outputs a control signal to the RC network attached to IZ06 controlling the phase of the Side Pannel pulses. High
12 P50 MAIN/PinP Outputs a control signal to I012 for selection of Main Sync or PinP Sync. High
13 P01 SCL Clock for the EEPROM Data
14 P47 Smooth Wide Outputs control signal to Q753 and I751 to switch deflection to Smooth Wide High
15 P02 SDA Data for the EEPROM Data
16 P51 4:3 When Fill, Full or Smooth Wide mode is selected in NTSC, output high to prevent generation of Mask Pulse
since no side panels are used.
High
17 SIN Tx Data output from Slave Micro to DM-1 module Data
18 N/A N/A No Connection
19 INT1 Request Request data from/to the DM-1 Module Data
20 N/A N/A No Connection
21 SOUT Rx Data input from DM-1 module to Slave Micro Data
22 N/A N/A No Connection
23 SCLK Clock Clock for the DM-1 data transmission Data
24 Avcc Avcc +5V
25 HLF HLF
26 RVCO TRVCO Resistive Fixed
27 VHOLD VHOLD Fixed by Capacitor
28 CVIN C. Video Input Input for Composite Video for Closed Caption detection. However, the DM-1 module actually generates the Closed Caption charac-ters.
Signal
29 CNVSS CNVSS
30 OSC In OSC in
31 OSC Out OSC Out
32 VSS Ground Ground
33 Vcc Vcc +5V
34 OSC In OSC In
35 OSC Out OSC Out
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Page07-02
DP-85 CHASSIS SLAVE MICROPROCESSOR I-001 PIN/PORT DESCRIPTIONPin No. ID Port Identification Function Active
36 CVIN Reset Reset active Low. Reset by I003 during first AC power application and by Q026 when the DM-1 module resets the Slave Microproc-
essor.
Low
37 P31 CLOCK Clock for the PinP Tuner data communications Data
38 P30 DATA Data for the PinP Tuner for Channel change, Programmable Divider, band selection, etc.. Data
39 P03 ENABLE Enables the reception of data by the PinP Tuner Data40 P16 Headphone SEL Det Active Low detects the insertion of the Headphone Jack Low
41 P15 LOCK Notifies the Slave Micro by a Low, when the PinP tuner PLL Phase Detector is locked Low
42 SDA2 SDA Data for controlling the 1H Video, 2.14 Video Processor, PinP, LFE/Center Audio Control, Headphone/Rear Audio Control, 3DYC
and Deflection IC's.
Data
43 SDA1 SDA Data for the PinP/Front audio controller and AV switch IC Data44 P67 Auto
Convergence SWWhen the Magic Focus switch is pressed, the DM-1 module notifies the Slave Micro.Then the Slave Micro outputs a high from this pin to the DCU to start Magic Focus.
High
45 SCL2 SCL Clock for controlling the 1H Video/Chroma, 2.14 Video Processor, PinP, LFE/Center Audio Control, Headphone/Rear Audio Control,
3DYC and Deflection IC's.
Data
46 P66 P.BLK. (Not Used) n/a
47 SCL1 SCL Clock for the PinP/Front audio controller and AV switch IC Data
48 P65 Data Data to control the Front L/R and Center Graphic Equalizer Data
49 P10 KEYIN Not Used. n/a
50 P20 KEYIN Notification of the OEM in which the chassis is used. Diode D002 identifies it as Hitachi by feeding back Key Out2 pulses from pin
38.
Data
53 P20 Power ON/OFF When the DM-1 Module instructs the Slave Micro. to turn ON, this output goes high High
54 P62 Clock Clock for data communications to control the Front L/R and Center Graphic Equalizer Data
55 P07 Auto Convergence Size When Magic Focus is initialized or run, the deflection size is widened to guarantee light strikes the Photo cells. High
56 P61 V.MUTE Mutes Audio and Video through Q008 and Q010 to Sub Video and Surround PWB during channel change High
57 P06 Auto
Convergence Busy
Whe the DCU is activated by the Service Only switch, this pin is notified via Q002. After notification,
the Slave Microprocessor notifies the DM-1 module via data to ignore Infrared commands.
High
58 P60 UV/IQ Not Used. n/a
59 P05 HOR. Det Receives a High when the 130V line is drawing excessive current. Shuts off relay. High
60 P04 Run Supply Det. (Not Used) n/a
61 OSC Blk OSD (Blk) Outputs a pulse slight wider and in time with the OSD characters to clean up video where character will be displayed. Pulse
62 B OSD (B) Outputs Blue characters for the Service Menu Pulse
63 G OSD (G) Outputs Green characters for the Service Menu Pulse
64 R OSD (R) Outputs Red characters for the Service Menu Pulse
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DP-85 SERVICE ADJUSTMENT ORDERPREHEAT BEFORE BEGINNING
Order Adjustment Item Screen Format Signal DCU Data1 Cut Off FULL NTSC
2 Pre Focus FULL NTSC
3 DCU Phase Data Setting FULL NTSC
4 DCU Phase Data Setting SMOOTH NTSC
5 Horz. Position Adj. (Coarse) FULL NTSC
6 Horz. Position Adj. (Coarse) SMOOTH NTSC
7 Raster Tilt FULL NTSC CLEAR
8 Beam Alignment FULL NTSC
9 Raster Position FULL NTSC CLEAR
10 Horz. Blanking Phase FULL NTSC
11 Horz. Size Adjust FULL NTSC CLEAR
12 Vertical Size Adjust FULL NTSC CLEAR
13 Trapezoid FULL NTSC CLEAR
14 Side Pin FULL NTSC CLEAR
15 Horz. Size Adj. SMOOTH NTSC CLEAR
16 Vertical Size Adjust SMOOTH NTSC CLEAR
17 Trapezoid SMOOTH NTSC DCU Grid CLEAR18 Side Pin SMOOTH NTSC CLEAR
19 Beam Form NORMAL NTSC
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DP-85 I2C SERVICE MODEPage 1 of 4 Total of 117 Adj. with 13 Field Adjustments
No.OSD
(Text)ADJUSTMENT ITEMS
ADJ.
RANGE
INIT.
VALUEADJ. VARIABLE RANGE
CONTROLLED
DEVICE
1 SERVIC SERVICE Off/On Off YES
2 SUBBRT SUB BRIGHTNESS 0~255 127 YES -40IRE to +40IRE TA1276AN
3 HBLKPH H. BLK. PHASE 0~63 32 YES 4 HPOS-F H. Position (Full) 0~127 76 YES uPc1885
5 SPIN Side Pin (Full) 0~63 22 YES uPc1885
6 TRAP Trapezoid (Full) 0~63 25 YES uPc1885
7 HSIZ H. Size (Full) 0~127 30 YES uPc1885
8 VSIZ-F V. Size (Full) 0~127 46 YES uPc1885
9 H-POS-S H. Position (Smooth) 0~127 76 YES uPc1885
10 SPIN-S Side Pin (Smooth) 0~63 18 YES uPc1885
11 TRAP-S Trapezoid (Smooth) 0~63 26 YES uPc1885
12 HSIZ-S H. Size (Smooth) 0~127 58 YES uPc1885
13 VSIZ-S V. Size (Smooth) 0~127 47 YES uPc1885
14 PHPOSI PIP H. Position (CENTER) 0~63 14 PinP Unit15 PVPOSI PIP V. Position (CENTER) 0~63 12 PinP Unit
16 CONT Contrast (CENTER) 0~127 63 UNI-COLOR -18dB to 0dB TA1276AN
17 CONT-T Contrast (Center offset) Theater Mode 0~127 63 UNI-COLOR -18dB to 0dB TA1276AN
18 BRT-YIQ Brightness YIQ TA1276AN
19 BRT-T Black Level (Center offset) Theater Mode 0~255 127 -40IRE to +40IRE TA1276AN
20 C-YIQ Color (Center) (NTSC-YIQ) 0~127 63 Color Min -20dB to +4dB TA1276AN
21 C-170 Color (Center) (SMPTE-170M) 0~127 63 TA1276AN
22 C-709 Color (Center) (ITU-R709) 0~127 63 TA1276AN
23 T-YIQ Tint (Center) (NTSC-YIQ) 0~127 63 TINT -32deg to +32deg TA1276AN
24 T-170 Tint (Center) (SMPTE-170M) 0~127 63 TA1276AN
25 T-709 Tint (Center) (ITU-R709) 0~127 63 TA1276AN
26 S-NTSC Sharpness (Center) (NTSC) 0~127 63 Sharpness Min -20dB to +14dB TA1276AN
27 S-SDTV Sharpness (Center) (SDTV) 0~127 18 TA1276AN
28 S-HDTV Sharpness (Center) (HDTV) 0~127 63 TA1276AN
29 S-T Sharpness (Center offset) Theater Mode 0~127 63 SHARPNESS -20dB to +14dB TA1276AN
30 G-9300 Green Drive (9300K) 0~127 63 DRIVE -5dB to 0dB to +3dB TA1276AN
Only adjust those adjustments with a YES in the ADJ column. Page 08-02
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DP-85 I2C SERVICE MODEPage 2 of 4 Total of 117 Adj. with 13 Field Adjustments
No.OSD
(Text)ADJUSTMENT ITEMS
ADJ.
RANGE
INIT.
VALUEADJ. VARIABLE RANGE
CONTROLLED
DEVICE
31 B-9300 Blue Drive (9300K) 0~127 63 TA1276AN
32 G-7500 Green Drive (7500K) 0~127 54 TA1276AN
33 B-7500 Blue Drive (7500K) 0~127 46 TA1276AN34 R-CUT Red Cutoff 0~255 127 R CUTOFF 2V to 2.5V to 3V TA1276AN
35 G-CUT Green Cutoff 0~255 127 G CUTOFF 2V to 2.5V to 3V TA1276AN
36 B-CUT Blue Cutoff 0~255 127 B CUTOFF 2V to 2.5V to 3V TA1276AN
37 HFVM H. F/V Min. OSC Frequency (Full) 0~63 8 uPc1885
38 HFVO H. F/V OSC Frequency (Full) 0~63 31 uPc1885
39 SPB-F Side Pin Balance (Full) 0~31 15 uPc1885
40 HDTY-F H. Duty (Full) 0~31 15 uPc1885
41 SPC Side Pin Corner (Full) 0~63 31 uPc1885
42 ----- Don't Care
43 VSL-F V.S. Linearity (Full) 0~31 15 uPc1885
44 VCL-F V.C. Linearity (Full) 0~31 15 uPc188545 ----- Don't Care
46 ----- Don't Care
47 ----- Don't Care
48 RGBBRT RGB Black Level (Digital Convergence) 0~127 63 -4dB to 0dB to +3dB TA1276AN
49 RGBCNT RGB Contrast (Digital Convergence) 0~127 90 -18dB to 0dB TA1276AN
50 WPSL White Peak Suppressing Level (WPSL) 0~1 1 0:130IRE 1:110IRE TA1276AN
51 HIBRT High Bright Color (HIBRT) 0~1 0 0:Off 1:On
52 CGAMMA Color Gamma Correction Point 0~3 0 0:Off 1:O.2Vp-p 2:0.4Vp-p 3:0.6vp-p
53 CLIMIT Color Limiter Level (CLR) 0~1 0 0: 1.8Vp-p 1: 2.2Vp-p TA1276AN
54 SUBCNT Sub Contrast 0~31 16 -3dB to +3dB TA1276AN
55 YGAMMA Y-Gamma CURVE 0~3 0 0:Off 1:-2.5dB 2:-4.8dB 3:-6.5dB TA1276AN
56 CDE CDE 0~1 1 0:On 1:Off TA1276AN
57 RPHYIQ (R-Y) Phase (NTSC-YIQ) 0~3 2 0:90deg 1:92deg 2:94deg 3:112deg TA1276AN
58 RBGYIQ (R-Y) / (B-Y) Gain (NTSC-YIQ) 0~3 0 0:0.56 1:0.68 2:0.79 3:0.86 TA1276AN
59 GPHYIQ (G-Y) Phase (NTSC-YIQ) 0~3 2 0:236deg 1:240deg 2:244deg 3:253deg TA1276AN
60 GBGYIQ (G-Y) / (B-Y) Gain (NTSC-YIQ) 0~3 0 0:0.30 1:0.34 2:0.40 3:0.45 TA1276AN
Only adjust those adjustments with a YES in the ADJ column. Page 08-03
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DP-85 I2C SERVICE MODEPage 3 of 4 Total of 117 Adj. with 13 Field Adjustments
No.OSD
(Text)ADJUSTMENT ITEMS
ADJ.
RANGE
INIT.
VALUEADJ. VARIABLE RANGE
CONTROLLED
DEVICE
61 RPH170 (G-Y) Phase (SMPTE-170M) 0~3 0 0:90deg 1:92deg 2:94deg 3:112deg TA1276AN
62 RBG170 (R-Y) / (B-Y) Gain (SMPTE-170M) 0~3 2 0:0.56 1:0.68 2:0.79 3:0.86 TA1276AN
63 GPH170 (G-Y) Phase (SMPTE-170M) 0~3 2 0:236deg 1:240deg 2:244deg 3:253deg TA1276AN64 GBG170 (G-Y) / (B-Y) Gain (SMPTE-170M) 0~3 3 0:0.30 1:0.34 2:0.40 3:0.45 TA1276AN
65 RPH709 (R-Y) Phase (ITU-R709) 0~3 0 0:90deg 1:92deg 2:94deg 3:112deg TA1276AN
66 RBG709 (R-Y) / (B-Y) Gain (ITU-R709) 0~3 3 0:0.56 1:0.68 2:0.79 3:0.86 TA1276AN
67 GPH709 (G-Y) Phase (ITU-R709) 0~3 2 0:236deg 1:240deg 2:244deg 3:253deg TA1276AN
68 GBG709 (G-Y) / (B-Y) Gain (ITU-R709) 0~3 0 0:0.30 1:0.34 2:0.40 3:0.45 TA1276AN
69 OSDACL OSD-ACL (OS-ACL) 0~1 1 0:On 1:Off TA1276AN
70 RGBACL RGB-ACL (TX-ACL) 0~1 0 0:Gain1/2 2:Normal TA1276AN
71 SVM-PH VSM PHASE 0~3 3 0:-40ns 1:-20ns 2:0ns 3:+20ns TA1276AN
72 PIPVOL PinP Volume
73 APC-NT APACON PEAK f0 (NTSC) 0~7 7 0:Off 1:4MHz 2:3.3MHz 4:2.5MHz TA1276AN
74 APC-SD APACON PEAK f0 (SDTV) 0~7 6 5:Off 6:13MHz 7:10MHz 8:8MHz TA1276AN
75 APC-HD APACON PEAK f0 (HDTV) 0~7 5 TA1276AN
76 SVMLMT Velocity Modulation Limit 0~1 0 0:Parabola Modulation OFF 1:On TA1276AN
77 DCR-PO D.C. Restoration Point 0~7 0 0:0% to 7:42% TA1276AN
78 DCR-RA D.C. Restoration Rate 0~7 0 0:100% to 7:130% TA1276AN
79 DCR-LI D.C. Restoration Limit 0~3 0 0:100% 1:87% 2:73% 3:60% TA1276AN
80 BSP Black Stretch Start Point 0~7 2 0:22IRE to 7.56IRE TA1276AN
81 ABSP APL to Black Stretch Start Point 0~3 1 0:0dB to 3:1.5dB TA1276AN
82 BSP-T Black Stretch Start Point (Theater) 0~7 0 0:22IRE to 7.56IRE TA1276AN
83 ABSP-T APL to Black Stretch Start Point (Theater) 0~3 0 0:0dB to 3:1.5dB TA1276AN
84 YGM-PO Y-Gamma Point 0~1 0 0:100IRE 1:95IRE TA1276AN
85 STRCNT
86 STRCSD
87 STRCHD
88 RGB-GM RGB-Gamma 0~1 1 0:OFF 1:ON TA1276AN
89 BLC Black Level Automatic Correction (B.L.C.) 0~1 1 0:OFF 1:ON TA1276AN
90 BSG Black Stretch Gain (B.S.G.) 0~1 1 0:ON 1:OFF TA1276AN
Only adjust those adjustments with a YES in the ADJ column. Page 08-04
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DP-85 I2C SERVICE MODEPage 4 of 4 Total of 117 Adj. with 13 Field Adjustments
No.OSD
(Text)ADJUSTMENT ITEMS
ADJ.
RANGE
INIT.
VALUEADJ. VARIABLE RANGE
CONTROLLED
DEVICE
91 BDL Black Detection Level (B.D.L.) 0~1 1 0:3IRE to 1:0IRE TA1276AN
92 DADV Dynamic ABL Detection Voltage 0~7 0 0:MIN 7:MAX TA1276AN
93 DAS Dynamic ABL Sensitivity 0~7 0 0:MIN 7:MAX TA1276AN
94 ABLV ABL Detection Voltage 0~7 0 0:MIN 7:MAX TA1276AN
95 ABLS ABL Sensitivity 0~7 0 0:MIN 7:MAX TA1276AN
96 ABLV-T ABL Detection Voltage (Theater) 0~7 0 0:MIN 7:MAX TA1276AN
97 ABLS-T ABL Sensitivity (Theater) 0~7 0 0:MIN 7:MAX TA1276AN
98 TINT-P Tint (PinP) 0~255 160 PinP Unit
99 CLR-P Color (PinP) 0~255 121 PinP Unit
100 TNT-NT Tint (Main Picture) NTSC 0~127 56 TA1270AF
101 CNT-NT Contrast (Main Picture) NTSC 0~31 27 TA1270AF
102 CLR-NT Color (Main Picture) NTSC 0~31 12 TA1270AF
103 CCD-D CCD Data Slice Line (00E0H) 0~255 17
104 CCD-S CCD Start Bit Position (00E1H) 0~255 210
105 CCD-W CCD Window Position (00E2) 0~255 41
106 CCD-C CCD Clock Line Counter (00E6H) 0~255 5107 CCD-SD CCD Start Bit Position (00E7H) 0~255 1
108 CCD-CD CCD Clock Line Detection (00E9H) 0~255 108
109 YNR
110 YOUTGM
111 ----- Don't Care
112 RESET Initial Set
113 ----- Don't Care
114 HFV H. F/V (Full) 0~255 243 uPc1885
115 VPOS-F V. Position (Full) 0~127 63 uPc1885
116 VMAX-F V. Output Max. Size (Full) 0~31 18 uPc1885
117 VSM-GA VSM GAIN 0~3 0 0:0dB 1:-6dB 2:-9dB 3:Off TA1276AN
Only adjust those adjustments with a YES in the ADJ column. Page 08-05
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DP-85 SERIES CHASSIS MAGNETS, SCREEN CONTROLS and FOCUS BLOCK ASSEMBLY
DP-85 MAGNETS
Adjustment Points
RED CRT GREEN CRT BLUE CRT
21 3
4
5
6
4
4
5
5
FRONT
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PRESET EACH ADJUSTMENT
VR TO CONDITION AS
SHOWN:
A) Before Pre Heat Run.
1) Red and Green Drive VR on
the CRT PWB. (Not on Blue
CRT ) .
Pre set
between the
12 o c l o ckand 2 o c lo ck
pos i t ion.
2) SCREEN VR ON FOCUS
PACK.
Pre Set fu l ly counter
c l o ckw i s e .
3) Focus VR on focus pack
Pre Set fu l ly c lockwise.
PRE HEA T RU N CO NDITION DP-85 Series Chassis.
12~2
DRIVE VR
SCREEN VRFOCUS VR
R G B
Screen VR
Focus VR
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ADJUSTMENT PR EPARATION:
A) Pre Heat Run should be
f in ished.
ADJUSTMENT PR OC EDU RE :
1) Go to I2 C ADJ . Mode . (Wi th
power ON , press th e TV/
SAT and the CURSOR
DOWN [q]button. The
Service Menu is displayed.)
2) Choose SER VICE i t em [1]
o f I 2C ADJ . Mode . (Select
CURSOR RIGHT [u]and
the Vertical will collapses).
3) Ad jus t any Sc reen VR.
Screen VR shou ld be turned
clockwise gradual ly unt i l
that part icular color is
barely v is ible.4) Repeat fo r the o ther two
co lors .
FOCUS ADJUSTMENT:
1 ) Sho rt t he 2pi n sub-
miniature connector on the
C R T P W B ( TS) , to remove
any co lor not being
adjus ted and adjus t one
co lor at a t ime. (The
adjustment order of R, G
and B is just an example.)
2 ) Ad ju s t t he Fo cus VR f o r
Red unt i l max imum Focus i s
ach ieved .
3 ) Repeat f o r B lue and Green.
4 ) To Ret u rn t o Se r vi ce Menu ,
p res s the CURSOR RIGHT
[u] key on remote.
CUT OFF and FOCU S ADJ USTM ENT DP-85 CH ASSIS
R G B
Screen VR
Focus VR
Screen VRs
F VR
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DP-85 CHASSIS
DCU CROSS-HATCH PHASE SETTING ADJUSTM ENT PROCEDURE
Adjustment Preparation:
1 ) Cu t Of f adju s tmen t s hou l d
be f in ished.
2 ) V i deo Cont r ol : B ri gh tness
90%, Cont ras t Max .
Adjustmen t Procedure:
1 ) R e ce i ve a n y NT SC s ig na l.
2 ) S c re en F or m at is FULL
3 ) P re s s a nd H ol d th e
SERVICE ONLY sw i t ch on
the def l ec t i on PW B.
4 ) P re ss t he ANT key on the
Remote, then press the
EXIT key. (This i s the
Phase adjus tment mode) .
5 ) Ad ju s t da ta v a lue u si ng t he
keys ind icated in the chart ,
unt i l the data matc hes the
values ind icated in the
chart .
Exiting Adjustment Mode:
6) Press Help key on remote
cont ro l .
7) Press SWAP key TWICE to
s tore the informat ion.
8 ) W he n Gr ee n do ts ar e
d isp layed, press the 8 key
on remote.
9) Pre ss the SERVICE ONLY
swi tch to return to normal
mode.
SMOOTH Mode Adjustment
Mode:
10) Change the D i sp lay Fo rmat
to SMOOTH/WIDE Mode.
11 ) Repeat st eps 3 th rough 9
for the SMOOTH/WIDE
mode.
PHASE MODE (FULL and SMOOTH/WIDE)Display Format
ADJUST USING Address Data Value
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DP-85 CHASSIS
HORIZONTAL P OSITION COA RSE ADJ UST MENT PROCEDURE
Adjustment Preparation:
1 ) Cu t O f f ad ju stmen t
should be f in ished.
2) V ideo Cont ro l : Br ight -
ness 90 %, Cont r a s t
M a x .
Adjustment Procedure
NORMAL MODE:
1 ) R ec e iv e a n y N T S C
cross hair s ignal.
2 ) S c reen Fo rma t i s NOR-
M A L
3 ) P re ss t he SERVICE
ONLY sw i t ch on the
def lec t ion PWB and
disp lay the Dig i ta l Con-
vergence Crosshatch
pattern.
4 ) Mark t he cen te r o f t he
Dig ita l Convergen ce
Crosshatch Pat te rnwi t h f inger and press
the SERVICE ONLY
i t h t t t
of the Dig i ta l Cross-
hatch pattern noted in
step {4}.
6 ) Wr it e dow n t he dat a
value.
7 ) E xi t fr om t he I2C
M e n u .
SMOOTH/WIDE Mode
Adjustment:
1 ) R e ce i ve an y N T S C
cros shair s ignal.
2 ) S c r een F ormat i s
SMOOTH.
3 ) P re ss t he SERVICE
ONLY sw i t ch on the
def lec t ion PWB and
disp lay the Dig i ta l Con-
vergence Crosshatch
pattern.
4 ) Mark t he cen te r o f t he
Dig ita l Convergenc eCrosshatch Pat te rn
wi t h f inger and press
th SERVICE ONLY
5) En te r the I2CBus al ign-
ment menu and se lec t
Item [9] HPOS-Sand
adjust the data to the
same va lue as the data
value entered for the
NORMALmode S tep{6} .
6 ) P r es s t he MENUbut ton
on remote to e x i t ser-
v i ce menu mode.
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DP-85 CHASSIS
RAST ER TILT (Deflection Yoke) ADJ US TM EN T PROC EDURE
Adjustment Preparation:
1 ) The se t c an f a ce any
direct ion.
2 ) Re ce i ve t he C r o s s-
Hatch S igna l
3) VIDEO CONTROLS:
Factory Preset .
4) SCREEN FORMA T:
shou ld be FULL mode.
5 ) The l en s f o cu s s hou l d
have been coarse ad-
justed.
6 ) The e l e c tr i cal f ocus
shou ld have been
coarse adjusted.
7 ) The D igi t al Conve r-
gence R A M shou ld be
cleared.
(Turn power off, p ress
and h old the SERVICE
ONLY switch, then
pre ss th e POWER bu t -ton).
The Serv i ce On ly
i t h i th D
Adjustment Procedure :
GREEN:
1 ) Ap p l y c ove r s t o the
RED and BLUE l enses
or shor t the 2P Sub
Mi n i connector [TS] on
each CRT P WB to p ro-
duce on ly GREEN .
2 ) T ur n t he Greende f lec-
t ion yoke and adjust
the TILT unti l the
green is leve l . [ +/-
2mm tolerance]. See
diagram.
RED:
1 ) Remove cove r f rom
REDC RT and a l ign
RED w i th GREEN.
2) [+/- 1mm tolerance
when compared to
Green]
BLUE:
1 ) Remove cove r f rom
BLUEand cover the
RED CRT. A l i gn BLUE
w i th GREEN.
2) [+/- 1mm tolerance
when compared to
Green]
3) R E MO V E A LL C O V -
ERS .
4 ) Tu rn t he powe r o ff .
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BEAM ALIGNMENT for DP-85 CHASSIS
(WARNING: Remove all rings, watches and jewelry to avoid shock.)
Preparation for adjustment:
1 ) Ad jus t a t lea s t 3 0 m inu t es
af ter turn ing on pow er
sw i t ch .
2 ) Ras ter inc l i nat ion , center-
ing, horizontal and vert ical
ampl i tudes and opt ica l fo -
cus adjus tment should be
comp le ted .
3 ) B ri gh tn e ss : 9 0 %
Cont ras t Max .
4 ) Rece iv e c r o ss ha t ch s i gna l s,
or dot pattern
RA STE R TILT ad jus tment
should be f in ished.
5 ) SCREEN FORMAT s hou l d
be FULL mode.
Adjustment procedure:
1) Green (G) tube beam a l i gn-
ment adjus tment:
Short -c i rcu i t 2P subminia-
ture connector p lug p ins o f
Red (R) and Blue (B) on the
CRT boards and pro ject
only Green (G).
2 ) Pu t G reen (G ) tube beam
al ignment magnet to the
cance l s t a te as shown in
Figure 1 .
4 ) Turn Green (G) s t a t i c f o cus
VR c l o ckwise a l l the way .
5 ) Tu rn two Beam al i gnmen t
magnet in any des i red d i-
rect ion and move cross
hatch center to pos i t ion
found in s tep (3) .
(See Figure 2 below ).
6) I f image posi t i on does no t
shi f t when Green s tat ic fo -
cus VR is turned, adjus t-
ment comp le te .
7 ) If i mag e po si ti on d o es
move, repeat s teps [2]
through [6].
8 ) C o nd u ct b e a m al ig nm en t
for Red and Blue in the
s ame way .
9 ) R ed ( R ) f oc u s o n f oc u s
pack .
10 ) B lue (B) fo cus on fo cus
pack .
11 ) Upon comp le t ion of ad jus t -
ment , p lace a smal l
amount o f whi te paint on
the beam al ignment mag-
nets , to assure they don t
mov e. (If avai lable).
2 ) The Yoke T i l t , centering ,
horizontal/vert ical ampl itude
and opt ica l focus adjus t -
ment s shou ld have been
comp le ted .
3 ) B r igh tness : 9 0%, Cont r as t :
Max . .
4 ) I nput a NTSC DOT s i gna l .
Adjustments procedure:
1 ) G reen CRT beam shape ad -
just ment .
2 ) Sho r t -c ir cu it 2P sub-m in i
connectors on Red and Blue
CR T PWB to p ro jec t on ly
the Green beam.
3 ) Tu rn t he g r een s t at i c f ocus
VR fu l l y c lockw i se .
4 ) Make t he dot a t the s cr een
center a t rue c i rc le as
s hown i n Figure 2 on page
01-19, us ing the 4-Po le
magnet shown in Figure 2
bellow.
5 ) A l s o ad ju s t t he Red and
B lue CRT beam shapes ac-
cord ing to the s teps (1) to
(3).
6 ) A f t e r t he ad jus tmen t is
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DP-85 CHASSIS CENTERING MAGNET vs. BEAM FORM MAGNET
NOTE:
The Centering Magnet and Beam Form and Beam Alignment magnets are shown on the
right to avoid confusion when adjusting.
Figure 1 shows the Centering magnet. This magnet is normally made of metal and is
located up against the back side of the yoke assembly.
(Not down on the neck of the CRT)
Figure 2 shows the Beam Form and Alignment magnet. This magnet is normally made of
pl as ti c and is loca ted close to the CRT PWB on the nec k of th e CRT.
PICTURE TUBE SIDE
4 POLE BEAM SHAPE
ADJUSTMENTTABS
BEAM FORM & ALIGNMENT MAGNET
CENTERING MAGNET
Figure 1
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RED, GREEN and BLUE CENTERING FOR THE DP-85 CH AS SIS
Centering adjustment using theCentering Magnets.
1) Display a Cross-Hair signal from
an external generator.
2) Contrast: Maximum Brightness:
Center
3) The focus adjustment should have
been completed.4) The electrical focus should have
been adjusted.
5) Yoke Tilt should have been
completed.
6) The convergence DCU RA M
should have been CL E A R E D .
(With Power OFF, press andhold the Service Switch down,
then press power. When pictureappears, press the ServiceSwitch again to bring up theDCU Crosshatch.)
Adjustment procedure:1) Select the Green adjustment
mode,Recallon the remote
control. See Digital
Convergence adjustmentprocedure.
2) Apply the Digital convergence
overlay.
3) Press theMenubutton on the
remote to turn off Red and Blue.
4) Adjust the centering magnets for
G on the back side of theDeflection Yoke and align the
center of the G Crosshatch to the
center of the overlay.
5) Select Red adjustment Mode,
0 on the remote control.
6) Adjust the R centering magnet
and align the center of R with the
left centering offset mark on the
overlay.7) Select Blue adjustment Mode,
Input on the remote control.
8) Adjust the B centering magnet
and align the center of B with the
Right centering offset mark on
the overlay.
Offset Measurements.
The actual measurements for Red
and Blue offset are as follows:
Red is aligned 1 0 mm left of center
Blue is aligned 3 0 mm right of
center.
Geometric
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HORIZONTAL BL ANKING PHASE AD JUST MEN T D P-85 CHA SSIS
Th i s ad j u s tmen t i s o n l y n e ce s -
s a ry wh e n t h e 2H v i d e o PWB
is repa i red o r rep la ced .
Adjustment Preparation.
1 ) V IDEO con tr o l : F ac to r y
Preset .
2 ) Beam Form adj . Compl e te .
3 ) Rece i ve any NTSC s i gna l ,
resolution chart would be
best.
Adjustment procedure:
1) Go to I2 C Serv ice Adj .
mode . (Press the TV/SAT
and Channel Down button
together to display Service
Adj . Mo de .)
2 ) C h oo se i t em [7] (HSIZE-F)
w i th the remote up/down
keys , and NOTE the current
data value.Reduce to mini -
m um .
3 ) D i sp l ay o n l y G reen by
short ing the sub mini 2p in
connecto r on the Red and
B l ue CRT PWB.
4 ) S e le c t i t em [3] (HBLKPH)
w i th the remote up/down
keys .
5) Adjust unt i l l2 is equal w i th
l1. (See figure below).
6 ) C h oo se it e m[7](HSIZE-F)
wi th remote up/down ke ys .
7 ) R e tu rn i tem [7] data va lue
with the one noted in s tep
(2) o f Adjus tment Proce-
dure.
FULL MODE NTSC
Note: Only this side moves with adjustment.
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HORIZONTAL & V ERTICAL SIZE ADJUS TME NT PROCEDURE DP-85 C HASSIS
VERTIC AL SIZE:
(Display Mode FULL or
SM OO TH/WIDE as Depicted)
1) Insta ll t he cor rec t Over lay
dependant upon the Dis -
p lay Mod e being adjus ted.
2 ) I nput any NTSC S i gna l.
3 ) D ig it al Co nv er gen ce R A M
should be c leared. With
Power Of f , press and ho ld
the Service Only Switchon
the Def l ec ti on PW B, then
press Power. (See Page 0 8-
25) .
4 ) P roj e ct o nl y the Green
raster.
5 ) P re ss t he EXITbut ton on
remote cont ro l 5 t imes to
exi t DCAM and acc es s
turner v ideo.
6) En ter I2C Service Mode and
choos e Item [8] (VSIZ-F)
FOR SMOOTH/WIDE MODE
[ Smo o t h /W i d e s e l e c t It em
[1 3 ] (VS IZ -S )]
6 ) Ad ju s t dat a v a l ue u s ing l ef t
and r ight cursor on remote
cont ro l unt i l ras ter matches
the top and bot tom mark
on the over lay .
7 ) P re ss t he MENUkey on
remote cont ro l to ex i t Ser-
v i ce Menu.
HORIZONTAL SIZE:
(Display Mode FULL or
SM OO TH/WIDE as Depicted)
1) Enter I2C Service Mode and
choose Item [7] (HSIZ-F)
FOR SMOOTH/WIDE MODE
Smoo t h /W i d e s e l e c t It em
[1 2 ] (HS IZ -S )
2 ) Ad ju s t dat a v a lue u s ing l ef t
and r ight cursor unt i l the
5th l ine f rom center
matches the l ines ind icated
on the lef t and r ight hand
s ide o f the over lay .
3 ) P re ss t he MENU key on
remote cont ro l to ex i t Ser-
v i ce Menu.
NOTE: Ce n t e r i n g m a g n e t ma y
be mov ed t o f a c i l i t a t e .
D i s t a n c e i s im p o r t a n t , n o t c e n -
te r i ng .
NOTE : T h e r e a r e tw o d i f f e r en t
o ve r l a y s u sed du r i n g t h i s p ro c -
ess .
Alternate Method:
Ad ju st Ho ri zo nt al an d Ve rt ical
Size unti l the size matches the
chart below.
VERTICAL Full Mode Smooth Mode HORIZONTAL Full Mode Smooth Mode
Size of ScreenDistance of l Distance of l Size of Screen Distance of l Distance of l
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SIDE PIN DISTORTION ADJ UST ME NT DP-85 CH AS SIS
Adjustment Preparation.
1 ) V IDEO con t ro l : Fac t o ry
Preset .
2 ) SIDE PIN ad justment shou ld
be f in ished. .
3 ) D ig i ta l C on v er g en c e R A M
should be c leared. With
Power Of f , press and ho ld
the Service Only Switchon
the Def l ec ti on PWB , then
press Power. (See Page 0 8-
25) .
4 ) D i sp l ay o n l y Green by s e -
lect ing Green adj . Mode,
US ER, and then press ing
the MENU key to turn o f f
Red and Blue.
5 ) P re ss t he EXITbut ton on
remote cont ro l 5 t imes to
ex it DCAM and ac ces s
turner v ideo.
Adjustment procedure FULL
MODE:
1) Rece ive any NTSC s igna l
and screen format is set to
FULL mode.
2) Go to I2 C Serv ice Adj .
mode . (Press the TV/SAT
and Channel Down butt on
together to display Service
Adj . Mo de .)
3 ) C h oo se i te m [5](SPIN-F)
w i th the remote up/down
keys .
4 ) Ad jus t Si de Pi n a s s hown .
5 ) P re ss t he MENUkey on
remote to ex i t Serv ice Ad-
just ment Mode.
Adjustmen t procedure
SMOOTH MODE:
1) Rece ive any NTS C s igna l
and screen format is set to
SM O O T H m o d e .
2) Go to I2 C Serv ice Adj .
mode . (Press the TV/SAT
and Channel Down butt on
together to display Service
Adj . Mo de. )
3 ) C h oo se i te m [10](SPIN-S)
w i th the remote up/down
keys .
4 ) Ad jus t Si de Pi n a s s hown .
5 ) E x it Se r v ice Mode by pr e s s-
ing the ME NU key .
6 ) P o w e r of f t o e xi t D C U
cleared mode.
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BEAM FORM ADJU STME NT for the DP-85 C HASSIS
BEAM FORM
Preparation for adjustment
1) IMPORTANT : Sc re e n f o r -
ma t s h o u l d b e NORMAL .
2 ) The beam a l ignmen t s hou l d
have been completed.
2 ) The Yoke T i l t , centering ,
hor izonta l/vert ica l ampl i tude
and opt ica l focus adjus t -
ment s shou ld have been
comp le ted .
3 ) B r igh tness : 9 0%, Cont r as t :
Max . .
4 ) I nput a NTSC DOT s i gna l .
Adjustmen ts procedu re:
1 ) G reen CRT beam shape ad-
just ment .
2 ) Sho r t -c i rcu i t 2P sub-m in i
connecto rs on Red and B lue
CR T PWB to p ro jec t on ly
the Green beam.
3 ) Tu rn the g r een s t a ti c f o cus
VR fu l l y c lockw i se .
4 ) Mak e t he dot a t the sc r een
center a t rue c i rc le as
s hown i n Figure 2, us ing
the 4-Po le magnet shown in
Figure 1 .
5 ) A l s o ad jus t the Red and
B lue CRT beam shapes ac-
cord ing to the s teps (1) to
(3).
6 ) A f t e r t he ad jus tmen t is
completed, return R, G and
B s tat ic VRs to the Best Fo-
cus po int .
TRUE C IRCLE
PICTURE TUBE SIDE
ADJUSTMENTTABS
BEAM ALIGNMENT AND FORM MAGNETS
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OPTICAL S YSTEM ADJUST MENTS DP-85 CHA SSIS
Focus adjustment
DP-8X Series Chassis:
Preparation for adjustment
1 ) Rece iv e t he C ros s-ha t ch
pattern s ignal.
2 ) The elec t r i ca l fo cus ad jus t-
ment shou ld have been
comp le ted .
3 ) Def l ec ti on Yoke ti l t shou ld
have been adjus ted.
4 ) B r ig ht n es s = 5 0 %
Con t r a st = 60 % t o 70%
Adjustment procedure
4 ) Shor t th e 2 pi n sub-
miniature connector on the
CR T P .W.B. TS , t o p roduce
only the co lor being ad-
justed and adjust one at a
t ime. (The adjus tment order
o f R, G and B is jus t an ex-
ample.)
2) (See Fig. 1) Loosen the f ix -
ing screw on the lens as-
sembly so that the lens cy l -
inder can be turned. (Be
carefu l not to loosen the
screw too much, as th i s
may cause movement o f
the lens cy l inder when
t ightening.) 3 ) Ro ta t e t he cy l i nde r back
and forth to obta in the best
focus po int , whi le observ-
ing the Cross-Hatch.
(Observe the center o f the
screen) .
Hint: Located just below
the screen are the two cen-
ter speakers. These speak-
ers are mounted on two
wooden panels. Remove
the panels to allow access
to the focus rings on the
Lenses.
4) A f te r comp le t ing op t i ca l fo -
cus , t ighten the f ix ing
screw s fo r each l ens .
5 ) When ad ju st i ng t he Green
Opt ica l focus , be very car e-
fu l . Green is the most domi-
nant o f the co lor guns and
any error wi l l be eas i ly
seen.
6 ) Repeat E lec t ri ca l Focus i f
necessary .
FIXING SCREW
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DP-85 CHASSIS
BLUE DEFOCUS ADJUS TMEN T PROCEDURE
Adjustment Preparation:
1 ) V i deo Con tr o l: B r igh tness
90%, Cont ras t Max .
2 ) D y na m ic F oc u s ch e ck
should be f in ished.
3 ) S C R EE N F OR M A T sh ou ld
be FULL mode.
Adjustment Procedure
NORMAL MODE:
1 ) R e ce i ve an y N T SC c r os s-
hatch s ignal .
2 ) S c re en F or m at is FULL
3 ) T ur n t he B FOCUS VR ful ly
c l o ckw i s e .
4 ) A d j us t BL UE d e f oc u s a c -
cord ing to the fo l lowing
speci f i cat ions .
1mm on each side equaling
2mm tot a l .
See figure.
Blue Defocus Sticking Out
Center of Blue crosshatch line
R G B
R G B
Screen VR
Focus VR
FOCUS PACK
Blue Focus VR on
FOCUS PACK
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AD J USTING THE RED, GREEN AND BLUE WHITE BALANCE AND TRACKING
for DP-85 Chassis
No te : Wh en Ve r t i c a l i s co l l apsed , make ad j us tmen t s qu i c k l y because the image can bu r n on the CRTs phospho r s .
White balance adjustment
1) Screen adjustment
2) High brightness white bal-
ance
3) Low brightness white bal-
ance
Adjustment VRs:Screen adjustment VRs on Focus
Block
Drive adjustment VRs on CRT P.
W.B.
Red Drive = R829R
Green Drive = R879GPreparation for adjustment
1 ) S t a rt ad ju stmen t 20 m in -
utes or more af ter thepower is turned on.
2 ) Tu rn t he b r igh tness and
black level OSD to mi ni -
mum by remote cont ro l .
3 ) Rece ive a tuner s igna l , ( any
channel , B/W would be
best).
4 ) Se t t he d r i v e adju stmen t
V R s (Red R8 2 9 R and GreenR8 79 G) to the i r mechan i ca l
centers .
Numbe r [1] of I2 C A D J .
Mode . (Select ON by Cur-
sor Right and the Vertical
will collapses).
3 ) G radua ll y t u rn t he s c r een
adjus tmen t VR s ( red, green,
b lue) c lockwise and set
them where the red, green
and b lue l ines are equal and
just barely vi s ible.
4 ) Re t urn Se r vi ce i tem on I2 C
A D J to Of f by Cursor Right.
Numbe r [1] .
Ad just the Sub Br ightness
Numbe r [2]SUBBRT us ing
I2 C Bus a l ignment proce-
dure so only the s l ightes t
whi te port ions o f the ras ter
can be seen.
Co n t i n u e d o n Ne x t P ag e
5 ) Input a g ray s cal e si gna l
Projection Front View
R G B
R G B
Screen VR
Focus VR
FOCUS PACK
RED CRT GREEN CRT BLUE CRT
Screen VRs
Focus VRs
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AD J USTING THE RED, GREEN AND BLUE WHITE BALANCE AND TRACKING
for DP-85 Chassis
No te : Wh en Ve r t i c a l i s co l l apsed , make ad j us tmen t s qu i c k l y because the image can bu r n on th e CRTs phosp ho r s .
into any V ideo input and
select that input us ing the
INPUT but ton on the re-
mote or f ront cont ro l
panel .
6 ) T ur n th e Br i gh tn es s a nd
Cont ras t OSD a l l t he wayup.
7 ) M ak e th e wh i te s a s wh i te
as poss ib le us ing the dr ive
adjus tment VRs ( red,
green).
8 ) S e t t he Br ig h tn e ss and
Contras t to minimum.
9 ) A d ju st th e l o w b r ig h tn e ss
areas to b lack and whi te,
us ing screen adjus tmentV R s (r ed, gr een, blue).
10 ) Check the h igh b r ightness
whi tes again. I f not OK,
repeat s teps 6 through 9.
11) Press the MENU key onremote to Ex i t Serv ice
M enu .
SUB BRIGHTNESS ADJUSTMENT FOR THE DP-85 CH AS SIS
ALTERNATE METHOD
W Y CY G MG R BL
A7 A6 A5 A4 A3 A2 A1
75%
B
D
Q I W 100% BLK
The background is set to black.perform the adjustment without
observing the boundary parts.
The background is set to
lighter black.
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DP-85 SERIES CHASSIS
HORIZONTAL POSITION FINE ADJUSTMENT PROCEDURE
Adjustment Preparation:
1 ) V i deo Con tr o l: B r igh tness
90%, C