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HCD-GNX780/GNX880Mexican ModelSERVICE MANUAL
MiNi Hi-Fi COMPONENT SYSTEM
SPECIFICATIONS
Ver. 1.1 2006.09
– Continued on next page –
• HCD-GNX780/GNX880 is the Amplifier,Disc player, tape deck and tunersection in MHC-GNX780/GNX880.
Model Name Using Similar Mechanism HCD-GN880
CD CD Mechanism Type CDM74KF-F1BD84
Section Base Unit Name BU-F1BD84
Optical Pick-up Name KSM-215DCP/C2NP
TAPE Model Name Using Similar Mechanism HCD-GNX80
Section Tape Transport Mechanism Type CWN42FF601
Amplifier sectionHCD-GNX880The following are measured at AC 127 V, 60 HzFront/Surround speakerDIN power output (rated) 180 + 180 watts
(6 ohms at 1 kHz, DIN)Continuous RMS power output (reference)
225 + 225 watts(6 ohms at 1 kHz, 10% THD)
SubwooferContinuous RMS power output (reference)
200 watts(8 ohms at 100 Hz, 10% THD)
HCD-GNX780The following are measured at AC 127 V, 60 HzFront speakerDIN power output (rated) 210 + 210 watts
(4 ohms at 1 kHz, DIN)Continuous RMS power output (reference)
285 + 285 watts(4 ohms at 1 kHz, 10% THD)
InputsVIDEO/MD (AUDIO) IN (phono jacks):
voltage 250/450 mV,impedance 47 kiloohms
TV (AUDIO) IN (phono jack): voltage 250 mV,impedance 47 kiloohms
MIC (phone jack): sensitivity 1 mV,impedance 10 kiloohms
Notes on chip component replacement• Never reuse a disconnected chip component.• Notice that the minus side of a tantalum capacitor may be
damaged by heat.
Flexible Circuit Board Repairing• Keep the temperature of soldering iron around 270˚C
during repairing.• Do not touch the soldering iron on the same conductor of the
circuit board (within 3 times).• Be careful not to apply force on the conductor when soldering
or unsoldering.
CAUTIONUse of controls or adjustments or performance of proceduresother than those specified herein may result in hazardousradiation exposure.
This appliance is classified asa CLASS 1 LASER product.This label is located on the rearexterior.
SAFETY-RELATED COMPONENT WARNING!!
COMPONENTS IDENTIFIED BY MARK 0 OR DOTTED LINE WITHMARK 0 ON THE SCHEMATIC DIAGRAMS AND IN THE PARTSLIST ARE CRITICAL TO SAFE OPERATION. REPLACE THESECOMPONENTS WITH SONY PARTS WHOSE PART NUMBERSAPPEAR AS SHOWN IN THIS MANUAL OR IN SUPPLEMENTSPUBLISHED BY SONY.
Unleaded solderBoards requiring use of unleaded solder are printed with the leadfree mark (LF) indicating the solder contains no lead.(Caution: Some printed circuit boards may not come printed withthe lead free mark due to their particular size.)
: LEAD FREE MARK
Unleaded solder has the following characteristics.• Unleaded solder melts at a temperature about 40°C higher than
ordinary solder.Ordinary soldering irons can be used but the iron tip has to beapplied to the solder joint for a slightly longer time.Soldering irons using a temperature regulator should be set toabout 350°C.Caution: The printed pattern (copper foil) may peel away ifthe heated tip is applied for too long, so be careful!
• Strong viscosityUnleaded solder is more viscous (sticky, less prone to flow)than ordinary solder so use caution not to let solder bridgesoccur such as on IC pins, etc.
• Usable with ordinary solderIt is best to use only unleaded solder but unleaded solder mayalso be added to ordinary solder.
Disc player sectionSystem Compact disc and digital
audio systemLaser Semiconductor laser
(λ=780 nm)Emission duration: continuous
Laser Output Max. 44.6 µW** This output is the value measured at a distance of 200 mm from the objective lens surface on the Optical Pick-up Block with 7 mm aperture.
Frequency response 2 Hz – 20 kHz (±0.5 dB)Wave length 780 – 790 nmSignal-to-noise ratio More than 90 dBDynamic range More than 90 dB
OPTICAL CD DIGITAL OUT(Square optical connector jack, rear panel)Wave length 660 nmOutput Level –18 dBm
9. ELECTRICAL PARTS LIST ................................ 70
4
HCD-GNX780/GNX880SECTION 1
SERVICING NOTES
NOTES ON HANDLING THE OPTICAL PICK-UP BLOCKOR BASE UNIT
The laser diode in the optical pick-up block may suffer electrostaticbreak-down because of the potential difference generated by thecharged electrostatic load, etc. on clothing and the human body.During repair, pay attention to electrostatic break-down and alsouse the procedure in the printed matter which is included in therepair parts.The flexible board is easily damaged and should be handled withcare.
NOTES ON LASER DIODE EMISSION CHECK
The laser beam on this model is concentrated so as to be focused onthe disc reflective surface by the objective lens in the optical pick-up block. Therefore, when checking the laser diode emission, observefrom more than 30 cm away from the objective lens.
LASER DIODE AND FOCUS SEARCH OPERATION CHECK
Carry out the “S curve check” in “CD section adjustment” and checkthat the S curve waveform is output several times.
5
HCD-GNX780/GNX880SECTION 2GENERAL This section is extracted
from instruction manual.
LOCATING THE CONTROLS
Main unit
ALBUM +/– qlAMP MENU edCD r; CD SYNC qfDeck A efDeck B wsDELAY eaDIRECTION wdDISC 1 ~ 3 1Disc tray qs DISPLAY 6Display q;
ECHO LEVEL whENTER wg EQ BAND wfEX-CHANGE/DISC SKIP 2 FLANGER 7GROOVE w;ILLUMINATION 5IR Receptor raKARAOKE wd
HCD-GNX780/GNX880This section is extractedfrom instruction manual.
Remote control
ALBUM + qfALBUM – qhCD wfCLEAR qkCLOCK/TIMER SELECT 2 CLOCK/TIMER SET 4DISC SKIP qdDISPLAY whENTER qs EQ qj
FM MODE 6FUNCTION 8
PLAY MODE 5REPEAT 6SLEEP 1
TAPE wdTUNER/BAND 7
TUNER MEMORY wgTUNING MODE 5VOLUME +/– qg
The + button has a tactile dot.*
?/1 (power) 3x (stop) qa
X (pause) qlN (play) w;–. (go backward) ws
>+ (go forward) wa
m (rewind) q;M (fast forward) 9
* Use the tactile dot as a reference when operating the system.
ALPHABETICAL ORDER
A – E
F – Z
SYMBOLS
7
5
q;
qg
qh
qj
qk
w;
ws
wd
wg
wh
qf
qd
qs
qa
9
8
6
4
31 2
ql
wa
wf
Use buttons on the remote for the operation.
1 Press ?/1 to turn on the system.
2 Press CLOCK/TIMER SET.
“CLOCK” appears in the display. Then, the hour indication flashes in the display.
3 Press –. or >+ repeatedly to set the hour.
4 Press ENTER.
The minute indication flashes in the display.
5 Press –. or >+ repeatedly to set the minute.
6 Press ENTER.
The clock starts functioning.
To adj ust the c lock
1 Press CLOCK/TIMER SET.“SET” appears in the display, then “PLAY SET?” flashes in the display.
2 Press –. or >+ repeatedly to select “CLOCK SET?”, then press ENTER.The hour indication flashes in the display.
3 Do the same procedures as step 3 to 6 above.
Not es The clock settings are canceled when you disconnect
the power cord or if a power failure occurs.
You cannot set the clock in Power Saving Mode .
Setting the clock
7
HCD-GNX780/GNX880SECTION 3
DISASSEMBLY
• This set can be disassembled in the order shown below.
3-1. DISASSEMBLY FLOW
3-2.SIDE PANEL, TOP CASE(Page 8)
3-3.LOADING PANEL(Page 8)
3-4.FRONT PANEL ASSY(Page 9)
3-5.TUNER PACK(Page 9)
3-14.POWER TRANSFORMER(T1200)
(Page 14)
3-12.POWER AMP PC BOARD ASSY, MAIN BOARD
(Page 13)
3-9.CD MECHANISM DECK(Page 11)
3-7.CD-SW BOARD, PANEL BOARD
(Page 10)
3-6.TAPE MECHANISM DECK,MIC BOARD
(Page 10)
3-15.CDG BOARD, DRIVER BOARD,
SW BOARD(Page 14)
3-11.PRIMARY BOARD EFFECTOR BOARD
(Page 12)
3-18.MOTOR (TB) BOARD(Page 16)
3-19.MOTOR (LD) BOARD(Page 16)
3-17.SENSOR BOARD(Page 15)
3-13.SURROUND BOARD, PA BOARD(Page 13)
3-8.FUNCTION BOARD, JOG BOARD
(Page 11)
3-10.BACK PANEL(Page 12)
3-16.BD84 BOARD(Page 15)
SET
8
HCD-GNX780/GNX880
Note: Follow the disassembly procedure in the numerical order given.
3-2. SIDE PANEL, TOP CASE
3-3. LOADING PANEL
1 screw (case 3 TP2) (3×8)
2 two screws (case 3 TP2) (3×12)
3 two screws (+BVTP 3×10)
4
5 PANEL (SIDE-R)
6 screw (case 3 TP2) (3×8)
7 two screws (case 3 TP2) (3×12)
8 two screws (+BVTP 3×10)
9
0 PANEL (SIDE-L)
qa two screws (+BVTP 3×12)
qs
qd CASE (TOP)
CD mechanism deck (CDM74KF-F1BD84)1 Turn the pulley to the arrow direction.
Front side
Pulley
2 Pull out disc tray
3
4 loading panel
9
HCD-GNX780/GNX880
3-4. FRONT PANEL ASSY
3-5. TUNER PACK
1 three screws (+BVTP 3×10)
2 three screws (+BVTP 3×10)
3 screw (+BVTP 3×10)
4 screw (+BVTP 3×10)
5 front panel assy
6 connector (CN100)
7 wire (flat type) (CN508)
8 wire (flat type) (CN509)
9 connector (CN503)
q; connector (CN1102)
qa connector (CN507)
1 two screws (+BVTP 3×6)
2 wire (flat type) (CN1)
3 tuner pack
10
HCD-GNX780/GNX880
3-6. TAPE MECHANISM DECK, MIC BOARD
3-7. CD-SW BOARD, PANEL BOARD
1 three screws (+BVTP2.6 (3CR))
2 two screws (+BVTP2.6 (3CR))
3 tape mechanism deck
4 three screws (+BVTP2.6 (3CR))
5 bracket (MIC)
7 MIC board6 knob (MIC)
5 three screws (+BVTP2.6 (3CR))
1 two screws (+BVTP2.6 (3CR))
6 wire (flat type) (CN900)
7 wire (flat type) (CN902)
4 three screws (+BVTP2.6 (3CR))
3 CD-SW board
8 PANEL board
CD-SW board
CD-SW board
bracket portion
button (DISC)
button (DISC)
button (DISC)
(side view)
bracket portion
A A
B
B
2 Pull up the bracket portion of button (DISC) in the arrow A direction and pull out CD-SW board in the arrow B direction.
11
HCD-GNX780/GNX880
3-8. FUNCTION BOARD, JOG BOARD
3-9. CD MECHANISM DECK
3 FUNCTION board
2 nine screws (+BVTP2.6 (3CR))
5 two screws (+BVTP2.6 (3CR))
6 two screws (+BVTP2.6 (3CR))
1 knob vol
4 knob jog assy
7 JOG board
MAIN board
2 CD mechanism deck
4 wire (flat type) (CN701)
6 wire (flat type) (CN504)
5 connector (CN560)
3 wire (flat type) (CN505)
1 two screws (+BVTP 3×8)
12
HCD-GNX780/GNX880
3-10. BACK PANEL
3-11. PRIMARY BOARD, EFFECTOR BOARD
1 connector (CN1200)
2 connector (CN1204)
3 wire (flat type) (CN1501)
6 two screws (GNX880) screw (GNX780) (+BVTP 3×10)
4 five screws (+BVTP 3×10)
5 two screws (+BVTP 3×12)
7 two screws (+BVTP 3×12)
9 connector (CN580)
8 back panel
1 connector (CN101)
2 connector (CN201)
3 screw (+BVTP 3×8)
5 two screws (+BVTP 3×10)
4 PRIMARY board
6 EFFECTOR board
13
HCD-GNX780/GNX880
3-13. SURROUND BOARD, PA BOARD
3-12. POWER AMP PC BOARD ASSY, MAIN BOARD
1 connector (CN1213)
2 connector (CN1212)
8 connector (CN105)
3 screw (+BV3 (3-CR))
4 two screws (+BV3 (3-CR))
5 screw (+BV3 (3-CR))
6 screw (+BVTP 3×10)
7 power AMP PC board assy
9 two screws (+BVTP 3×10)
q; screw (+BVTP 3×10)
qa MAIN board
(GNX880)
4 connector (CN607)
1 two screws (+BVTP 3×10)
2 two screws (transistor)
3 SURROUND board
5 two screws (+BVTP 3×10)
6 holder
7 three screws (+BVTP 3×10)
8 two screws (transistor)
9 two screws (+BVTP 3×10)
qa screw (+BVTP 3×10)
0 heat sink
qs bracket
(GNX880)
qd PA board
(GNX880)
14
HCD-GNX780/GNX880
3-14. POWER TRANSFORMER (T1200)
3-15. CDG BOARD, DRIVER BOARD, SW BOARD
1 connector (CN1213)
2 connector (CN1212)
3 two screws
4 two screws
5 power transfomer (T1200)TRANS board
7 connector (CN703)
4 cover (CDM)
8 DRIVER board
2 CDG board
0 SW board
6 wire (flat type) (CN702)
5 two screws (+BTTP (M2.6))
3 three screws (+BVTP 3×10)
1 two screws (+BVTP 3×10)
9 screw (+BTTP (M2.6))
15
HCD-GNX780/GNX880
3-16. BD84 BOARD
3-17. SENSOR BOARD
5 two coil springs (insulator)
9 two coil springs (insulator)
6 two insulators
0 two insulators
qs screw (+BVTP 2.6 (3CR))
7 two screws (+BTTP (M2.6))
3 screw (+BTTP (M2.6))
2 holder (213) ASSY
8 two stoppers (BU)
qd Remove the four solderings of motor.
qf CN101 (flat type)
qg BD84 board
qh optical pick-up (KSM-215DCP/C2NP)
1 floating screw (+PTPWH M2.6)
4 floating screw (+PTPWH M2.6)
qa
2 tray
3 belt (table)
5 pulley (table)
8 screw (+BTTP (M2.6))
0 SENSOR board
7 gear (geneva)
9 connector (CN731)
1 floating screw (+PTPWH M2.6)
6 floating screw (+PTPWH M2.6)
4 floating screw (+PTPWH M2.6)
16
HCD-GNX780/GNX880
3-18. MOTOR (TB) BOARD
6 Remove the two solderings of motor.
8 MOTOR (TB) board
7 table motor assy (M741)
5 two screws (+BTTP (M2.6))
4
3 wire (flat type) 5 core (CN742)
1 stopper
2 stopper
3-19. MOTOR (LD) BOARD
4 Remove the two solderings of motor.
3 MOTOR (LD) board
1 belt (loading)
5 loading motor assy (M751)
2 two screws (+BTTP (M2.6))
17
HCD-GNX780/GNX880
[MC TEST MODE]• This mode is used to check operations of the respective sections
of Amplifier, Tuner, and Tape.
Procedure:* To enter MC Test Mode
1. Press x button, [ENTER] button and [DISC 3] buttonsimultaneously.
2. The CD ring indicators TAPE A and B indicators flash on thefluorescent indicator tube. The function is changed to TV.
* Check of Amplifier
1. Press [EQ BAND] button repeatedly until a message “GEQMAX” appears on the fluorescent indicator tube. GEQincreases to its maximum.
2. Press [EQ BAND] button repeatedly until a message “GEQMIN” appears on the fluorescent indicator tube. GEQ decreasesto its minimum.
3. Press [EQ BAND] button repeatedly until a message “GEQFLAT” appears on the fluorescent indicator tube. GEQ is setto flat.
4. When the [VOLUME] knob is turned clockwise even slightly,the sound volume increases to its maximum and a message“VOLUME MAX” appears on the fluorescent indicator tube.
5. When the [VOLUME] knob is turned counter-clockwise evenslightly, the sound volume decreases to its minimum and amessage “VOLUME MIN” appears on the fluorescentindicator tube.
* Tape function1. When a tape is inserted in Deck B and recording is started, the
function is changed to TV automatically. When [CD SYNC]
button is pressed during recording in function, ALC (AutomaticLogic Control) is turned on.
2. During recording, press m will stop the recording andthe function is changed to TAPE B and rewind the tape inDeck B until the recording start position and playback of thetape in Deck B is started. If the [REC PAUSE/ START] buttonis pressed for a pause and pressed again to resume recordingduring recording time, when the tape is rewind, the tape willbe rewind until the position where the pause is applied.
* To release MC Test mode.
1. To release this mode, press ?/1 button.2. The cold reset is enforced at the same time.
[COLD RESET]• The cold reset clears all data including preset data stored in
the RAM to initial conditions. Execute this mode whenreturning the set to the customer.
Procedure: 1. Press x button, [ENTER] button, and ?/1 button
simultaneously.2. The fluorescent indicator tube becomes blank for a while, and
the set is reset.
[GC TEST MODE]• This mode is used to check the fluorescent indicator tube,
LEDs, keys, VOLUME jog, OPERATION DIAL jog, AMSjog, destination, software version and VACS level.
Procedure:1. Press x button, [ENTER] button and [DISC 2] button-
simultaneously.2. All LEDs and segments in fluorescent indicator tube are lighted
up. All LEDs are lighted up in red color.3. When you want to enter the software version display mode,
press [DISC 1] button. The model is displayed.Press [DISC 1] button again to show destination.
4. Each time [DISC 1] button is pressed, the display changes fromMC version, GC version, SYS version, CD version, CDDMversion, CDMA version, CDMB version, BDA version, BDBversion, ST version, TC version, TA version, TM version inthis order, and returns to the MC version display.
5. When [DISC 3] button is pressed while the version numbersare being displayed except model and destination, the date ofthe software creation appear. When [DISC 3] button is pressedagain, the display returns to the software version display. When[DISC 1] button is pressed while the date of the softwarecreation is being displayed, the date of the software creationis displayed in the same order of software version display.
6. Press [DISC 2] button, the key check mode is activated.7. In the key check mode, the fluorescent indicator tube displays
“K 0 V0J0”.Each time a button is pressed, “K” value increases. However,once a button has been pressed, it is no longer taken intoaccount.“V” value increases in the manner of 0,1, 2, 3 ... if [VOLUME]
knob is turned clockwise, or it decreases in the manner of 0,9, 8, 7 ... if [VOLUME] knob is turned counter-clockwise.“J” value increases in the manner of 0,1, 2, 3 ... if [OPERATION
DIAL] knob is turned clockwise, or it decreases in the mannerof 0, 9, 8, 7 ... if [OPERATION DIAL] knob is turned counter-clockwise.
8. When [DISC 3] button is pressed after all LEDs and segmentsin fluorescent indicator tube light up, the fluorescent indicatortube displays “VACS A+B FAPC”. A is VACS level which istrigger by signal level, B is VACS level which is trigger bytemperature and C is VACS level which is trigger by APVACS(Abuse Protection VACS).F is shown if the fan is turned in high speed and vice-versa.The signal level, which will trigger VACS A is shown in thecenter area of fluorescent indicator tube.
9. When [EX-CHANGE/DISC SKIP] button is pressed after allLEDs and segments in fluorescent indicator tube light up,alternate segments in fluorescent indicator tube would lightup. If you press [EX-CHANGE/DISC SKIP] button again, anotherhalf of alternate segments in fluorescent indicator tube wouldlight up. Pressing [EX-CHANGE/DISC SKIP] button againwould cause all segments lights up.
10. To release this mode, press three buttons in the same manneras step 1, or disconnect the power cord.
SECTION 4TEST MODE
18
HCD-GNX780/GNX880
[VACS ON/OFF]• This mode is used to switch ON and OFF the VACS (Variable
Attenuation Control System).
Procedure:1. Press ?/1 button to turn the set ON.
2. Press x button and [ILLUMINATION] button simultaneously.The message “VACS OFF” or “VACS ON” appears on thefluorescent indicator tube.
[TUNER STEP CHANGE]• The step interval of AM channels can be toggled between 9
kHz and 10 kHz.
Procedure:1. Press ?/1 button to turn the set ON.2. Press [TUNER/BAND] button to select the “AM”.
3. Press ?/1 button to turn the set OFF.
4. Press [ENTER] button and ?/1 button simultaneously. Thesystem will turn ON automatically. The message “AM 9kSTEP” or AM 10k STEP” appears on the fluorescent indicatortube and thus the channel step is changed.
[CD SERVICE MODE]• This mode let you move the CD sled motor freely. Use this
mode when you want to clean the optical pick-up.
Procedure:1. Press ?/1 button to turn the set ON.2. Select CD function.
3. Press x , [ENTER] button, and Z OPEN/CLOSE buttonsimultaneously.
4. The CD service mode is activated. The message “SERVICEMODE” appears on the fluorescent indicator tube.
5. With the CD in stop status, press M to move the optical
pick-up to outside track, or press m to move to insidetrack. The message “SLED OUT” or “SLED IN” appears onthe fluorescent indicator tube.
6. To turn on or off the laser, press [DIRECTION] button. Themessage “LD ON” or “LD OFF” appears on the fluorescentindicator tube.
7. To release this mode, press ?/1 button.
[CD AGING MODE]This mode can be used for operation check of CD section.
• If an error occurs, the aging operation would stops and thestatus is displayed.
• If there are no error occurs, the aging operation wouldcontinues repeatedly.
Procedure:1. Press ?/1 button to turn the set ON2. Select CD function.3. Load three discs on the disc tray.4. Press [PLAY MODE] button on the remote repeatedly to select
the “ALL DISCS” mode, and press the [REPEAT] button onthe remote repeatedly to select “REPEAT OFF” mode. 5. Press x button, [ENTER] button, and [EX-CHANGE/DISC
SKIP] button simultaneously.6. Aging operation is started.
7. To release this mode, press ?/1 button or disconnect thepower cord to turn the power OFF.
Aging mode sequence:
Start (from disc 1)
Disc chucking
TOC reading
Play first track for 2 seconds
Play last track for 2 seconds
EX-CHANGE open/close
Open the disc tray
Disc skip
Close the disk tray
Change the next disc
19
HCD-GNX780/GNX880
Display
M*$$%%&&##00
3) Display of no disc errors
D*: The number of mechanical error (“00” is latest one)
(Rotate >. knob in the direction of either to display next
error)$$: Error type
01: Focus error02: GFS error03: Setup error
%%: Not used&&:
00: No disc judgment without chucking retry.01: No disc judgment after chucking retry.
##: The state when judged as no disc01: Stop02: Setup03: TOC reading04: Access05: Playback06: Pause07: Manual search (Play)08: Manual search (Pause)
[CD REPEAT 5 LIMIT OFF MODE]• The number of repeat for CD playback is 5 times when the
repeat mode is “REPEAT ALL”. This mode enables CD torepeat playback for limitless times.
Procedure:1. Press ?/1 button to turn the set ON.2. Select CD function.
3. Press x button, [CD] button and [DISC 1] buttonsimultaneously to enter the CD repeat 5 limit off mode andthe fluorescent indicator tube displays “LIMIT OFF”.
4. To release this mode, operate the cold reset. (Refer to the “MCCOLD RESET”)
[CD SHIP MODE (WITH MEMORY CLEAR)]• This mode moves the optical pick-up to the position durable
to vibration and clears all data including preset data stored inthe RAM to initial conditions. Use this mode when returningthe set to the customer after repair.
Procedure:1. Press ?/1 button to turn the set ON.2. Select CD function.
3. Press x button, [SOUND FLASH] button and ?/1 buttonsimultaneously. The set will power off automatically.
4. After the “STANDBY” blinking display finish, a message“MECHA LOCK” is displayed on the fluorescent indicatortube and the CD ship mode is set.
Display
D*$$%%&&##00
• Display when an error occurred (CD Error Code Mode)Procedure:
1. Press x button, [ENTER] button and [DISC 1] buttonsimultaneously to enter the error code display mode.
2. The fluorescent indicator tube displays the number of totalerror.
3. Each time Mm knob is rotated, display change asbelow.
Display of total error
> + direction – . direction
Display of Mechanical errors
> + direction – . direction
Display of no disc errors
4. To clear the error record, operate the cold reset. (Refer to the“MC COLD RESET”)
5. To release this mode, press the ?/1 button or disconnectthe power plug to turn the power OFF.
1) Display of total error
Em**: The number of mechanical errors.Ed **: The number of no disc errors after chucking the disc.
2) Display of mechanical errors
M*: The number of mechanical error (“00” is latest one)
(Rotate >. knob in the direction of either to display nexterror)$$: Not used%%: Loading related error (Second figure is not used)
D: Stop by the problem other than mechanical problem whileclosing.
E: Stop by the problem other than mechanical problem whileopening.
C: Stop by the problem other than mechanical problem whilechucking up.
F: Stop by the problem other than mechanical problem whilechucking down.
&&: Emerging error01: Stop while chucking up.02: Stop while chucking up.03: Time-out of EX-CHANGE open.05: Time-out of EX-CHANGE close.
##: Not used
Display
Em**Ed**
20
HCD-GNX780/GNX880
[CD TRAY LOCK MODE]• This mode let you lock the disc trays. When this mode is
activated, the disc tray will not open when Z OPEN/CLOSEbutton or [EX-CHANGE/DISC SKIP] button is pressed. Themessage “LOCKED” will be displayed in the will be displayedon the fluorescent indicator tube.
Procedure:1. Press ?/1 button to turn the set ON.2. Select CD function.
3. Press x button and Z OPEN/CLOSE buttonsimultaneously and hold down until “LOCKED” or“UNLOCKED” displayed on the fluorescent indicator tube(around 5 seconds).
[VIDEO/MD SWITCHING]• This mode let you switch from VIDEO to MD and vice-versa.
Procedure:1. Press ?/1 button to turn the set ON.2. Select VIDEO function.
3. Press [VIDEO/MD] button and ?/1 button simultaneously.The function will change to MD. Press the same buttons againto change from MD to VIDEO.
[TCM OFFLINE MODE]• This mode prevents set from power off automatically when
TCM is not connected.Therefore, measurements can be done even when TCM is notconnected during production.
• Procedure:
1. When the system in turned off, press [EQ BAND] button,
[TAPE A/B] button and ?/1 button simultaneously. Theset will power on automatically.
2. The message “TCM OFFLINE” will be displayed on thefluorescent indicator tube.
[CD SHIP MODE (WITHOUT MEMORY CLEAR)]• This mode moves the optical pick-up to the position durable
to vibration. Use this mode when returning the set to thecustomer after repair.
Procedure:1. Press ?/1 button to turn the set ON.2. Select CD function.
3. Press [CD] button and ?/1 button simultaneously. The setwill power off automatically.
4. After the “STANDBY” blinking display finish, a message“MECHA LOCK” is displayed on the fluorescent indicatortube and the CD ship mode is set.
[CD POWER MANAGE]• This mode let you switch on or off power supply to the BU
during TUNER function.• When CD POWER is set to OFF, the power supply to the BU
is cut off during TUNER function. It will increase the timetaken to access CD when function change from TUNER toCD but it will improve tuner reception.
• When CD POWER is set to ON, the power supply to the BUis not cut off during TUNER function. It will reduce the timetaken to access CD when function change from TUNER toCD but it will decrease tuner reception performance.
Procedure:1. Press ?/1 button to turn the set ON.2. Select CD function.
3. Press ?/1 button to turn the set OFF.
4. Press x button and ?/1 button simultaneously. The setwill power on automatically.
5. The message “CD POWER ON” or “CD POWER OFF” willbe displayed on the fluorescent indicator tube.
21
HCD-GNX780/GNX880
SECTION 5MECHANICAL ADJUSTMENTS
SECTION 6ELECTRICAL ADJUSTMENTS
Precaution1. Clean the following parts with a denatured alcohol-moistened
swab:record/playback heads pinch rollerserase head rubber beltscapstan idlers
2. Demagnetize the record/playback head with a headdemagnetizer.
3. Do not use a magnetized screwdriver for the adjustments.4. After the adjustments, apply suitable locking compound to
the parts adjusted.5. The adjustments should be performed with the rated power
supply voltage unless otherwise noted.
Torque Measurement
2.9 mN • m to 6.9 mN • m
FWD CQ-102C 30 to 70 g • cm
(0.42 – 0.97 oz • inch)
FWD0.15 mN • m to 0.59 mN • m
back tensionCQ-102C 1.6 to 6 g • cm
(0.022 – 0.08 oz • inch)
4.8 mN • m to 16.7 mN • m
FF/REW CQ-201B 49 to 170 g • cm
(0.69 – 2.36 oz • inch)
Mode Torque meter Meter reading
0 dB=0.775 VDECK SECTION
1. Demagnetize the record/playback head with a headdemagnetizer.
2. Do not use a magnetized screwdriver for the adjustments.3. After the adjustments, apply suitable locking compound to the
parts adjust.4. The adjustments should be performed with the rated power
supply voltage unless otherwise noted.5. The adjustments should be performed in the order given in
this service manual. (As a general rule, playback circuitadjustment should be completed before performing recordingcircuit adjustment.)
6. The adjustments should be performed for both L-CH and R-CH.
7. Switches and controls should be set as follows unless otherwisespecified.
• Test Tape
RECORD/PLAYBACK HEAD AZIMUTH ADJUSTMENT
DECK A DECK B
Note: Perform this adjustments for both decksProcedure:
1. Mode: Playback
Tape Signal Used forP-4-A100 10 kHz, –10 dB Azimuth Adjustment
set
MAIN boardCN510Pin 1 (L-CH)Pin 3 (R-CH)
MAIN boardCN510Pin 2 (GND)
+–
level meter
test tapeP-4-A100(10 kHz, –10 dB)
22
HCD-GNX780/GNX880
2. Turn the adjustment screw and check output peaks. If the peaksdo not match for L-CH and R-CH, turn the adjustment screwso that outputs match within 1dB of peak.
3. Mode: Playback
4. After the adjustments, apply suitable locking compound tothe pats adjusted.
Adjustment Location: Playback Head (Deck A).Record/Playback/Erase Head (Deck B).
Screwposition
L-CHpeak
within1dB
Outputlevel
L-CHpeak
R-CHpeak
within1dB
Screwposition
R-CHpeak
MAINboardCN510set
test tapeP-4-A100(10 kHz, –10 dB)
pin 3
oscilloscope
L-CH
R-CH
V H
waveform of oscilloscope
in phase 45° 90° 135° 180°
good wrong
pin 2
pin 1
L
R
CDG SECTION
Note:1. CD Block is basically designed to operate without adjustment.
Therefore, check each item in order given.2. Use YEDS-18 disc (3-702-101-01) unless otherwise indicated.3. Use an oscilloscope with more than 10MΩ impedance.4. Clean the object lens by an applicator with neutral detergent
when the signal level is low than specified value with thefollowing checks.
S-curve CheckConnection:
Procedure:1. Connect an oscilloscope to test point JPO102 (FE1) and TP
117(VC) on the CD board.2. Turn the power on.3. Put the disc (YEDS-18) in and turned power switch on again
and actuate the focus search. (actuate the focus search whendisc table is moving in and out)
4. Check the oscilloscope waveform (S-curve) is symmetricalbetween A and B. And confirm peak to peak level within2.4 ± 1 Vp-p.
S-curve waveform
Note:• Try to measure several times to make sure than the ratio
of A : B or B : A is more than 10 : 7.• Take sweep time as long as possible and light up the
brightness to obtain best waveform.
Checking Location: CD board (SIDE B) (See page 24.)
+–
CD board
JPO102 (FE1)TP117 (VC)
oscilloscope
A
B
symmetry
within 2.4 ± 1 Vp-p
azimuthscrew
23
HCD-GNX780/GNX880
RFAC Level CheckConnection:
Procedure:1. Connect an oscilloscope to test point TP124 (RFAC) and TP
117(VC) on the CD board.2. Turn the power on.3. Put the disc (YEDS-18) in to playback the number five track.4. Confirm that oscilloscope waveform is clear and check RFAC
signal level is correct or not.Note: A clear RFAC signal waveform means that the shape “◊” can be
clearly distinguished at the center of the waveform.
RFAC signal waveform
Checking Location: CD board (SIDE B) (See page 24.)
E-F Balance CheckConnection:
Procedure:1. Connect an oscilloscpe to test point TPO103 (TE1) and TP117
(VC) on the CD board.2. Turn the power on.3. Select the function “CD”.
4. Press three buttons of [ENTER], M , and[SURRUUND MODE] simultaneously to set the CD servicemode.
5. Put the disc (YEDS-18) in to playback the number five track. 6. Press the . button. The message “TRAVERSE” is
displayed. (The tracking servo and the sledding servo areturned OFF)
7. Check the level B of the oscilliscope's waveform and the A(DC voltage) of the center of the Traverse waveform.Confirm the following :A/B x 100 = less than ± 22%
Traverse Waveform
8. Press the . button. The message “TRAVERSE” isdisplayed. (The tracking servo and sledding servo are turnedON)Confirm the C (DC voltage) is almost equal to the A (DCvoltage) is step 5.
9. To exit from this mode, perform as follows.1) Move the optical pick-up to the most inside track.
2) Press three buttons of x , [CLEAR], and [DISPLAY]
simultaneously. (cold reset)Notes:
• Always move the optical pick-up to most inside trackwhen exiting from this mode. Otherwise, a disc will notbe unloaded.• Do not run the sled motor excessively, otherwise the gear
can be chipped.
Traverse Waveform
Checking Location: CD board (SIDE B) (See page 24.)
+–
CD board
TP124 (RFAC)TP117 (VC)
oscilloscope
VOLT/DIV: 200 mVTIME/DIV: 500 ns
level: 0.9 ± 0.4 Vp-p
+–
CD board
JPO103 (TE1)TP117 (VC)
oscilloscope
0V
B
level: 1.0 ± 0.5 Vp-p
Center of the waveform
A (DC voltage)
0V
Tracking servoSled servo
ON
C (DC voltage)
Tracking servoSled servo
OFF
24
HCD-GNX780/GNX880
Checking Location:
– BD84 BOARD (SIDE B) –
TP117 (VC)
TP124 (RFAC)
JPO103 (TE1)
JPO102 (FE1)IC101
25
HCD-GNX780/GNX880
SECTION 7DIAGRAMS
For schematic diagrams.Note:• All capacitors are in µF unless otherwise noted. (p: pF)
50 V or less are not indicated except for electrolytics andtantalums.
• All resistors are in Ω and 1/4 W or less unless otherwisespecified.
• C : panel designation.• A : B+ Line.• B : B– Line.• H : adjustment for repair.• Voltages and waveforms are dc with respect to ground
under no-signal conditions.BD84 board no mark: CD PLAYOther boards no mark: TUNER (FM/AM) ( ) : CD PLAY < > : TAPE PLAY [ ] : TAPE REC
* : Impossible to measure• Voltages are taken with a VOM (Input impedance 10 MΩ).
Voltage variations may be noted due to normal produc-tion tolerances.
• Waveforms are taken with a oscilloscope.Voltage variations may be noted due to normal produc-tion tolerances.
• Signal path.F : TUNER (FM/AM)E : TAPE PLAY (DECK A)d : TAPE PLAY (DECK B)G : RECORDJ : CD PLAYN : MIC INPUTc : CDGg : VIDEO
Note: The components identified by mark 0 or dotted linewith mark ! are critical for safety.Replace only with part number specified.
(The other layers' patterns are not indicated.)
• Indication of transistor.
Caution:Parts face side: Parts on the parts face side seen from(Side A) the parts face are indicated.Pattern face side: Parts on the pattern face side seen from(Side B) the pattern face are indicated.
C
B
These are omitted.
E
Q
B
These are omitted.
C E
Q
B
These are omitted.
C E
Q
Note on Printed Wiring Boards:Note:• X : parts extracted from the component side.• : Pattern from the side which enables seeing.
26
HCD-GNX780/GNX880
• CIRCUIT BOARDS LOCATION
MAIN board
MIC board
JOG board
PANEL board
FUNCTION board
MOTOR (LD) board
SW board
SENSOR board
BD84 board
DRIVER board
MOTOR (TB) board
CD-SW board
CDG board
TRANS board
PA board
SURROUND board
EFFECTOR board
SWITCHING POWER
TUNER PACK
PRIMARY board
HCD-GNX780/GNX880
2727HCD-GNX780/GNX880
7-1. BLOCK DIAGRAM – CDG SECTION –
AMAIN
SECTION(Page 29)
B DISPLAY/POWERSECTION(Page 31)
OPTICAL PICK-UPBLOCK
(KSM-215DCP/C2NP)
LDDRIVER
Q10
CD DIGITALOUT
OPTICAL
CD MUTEQ250,251
+3.3V
LD
GND
FOCUSCOIL
F+
F
T+
TTRACKING
COIL
IC251
X17116.9MHz
SL/SP MOTORDRIVER
12
6
11
13
14
VR
PD
15
16
17
18
4
26
23
2
20MUTE
CH2OUT-F
CH1FIN
OUTVREF
CH1RIN
CH2FIN
SFDR
OPIN+
CH2OUT-R
CH1OUT-R
CH1OUT-F
CH4OUT-R
CH4OUT-F
CH3OUT-F
CH3OUT-R
M
M
M101(SPINDLE)
M102(SLED)
S101(LIMIT)
VCC
VC
A
B
C
D
E
F
DETECTOR
A
B
E19
F20
LD36
PD37
TFDR11
FFDR13
CH3FIN 9
OPTICALOUT
SSTP7
MPD6
95XTACN
100XRST
102DATA
104XLAT
105CLOCK
86AOUT2
81AOUT1
71DOUT
61PCMD1
62LRCKI
63LRCK
65PCMD
MP3IC301
DECODER
SYSTEMIC401 (1/5)
CONTROL
IC210
21
40
SDO011
LRCKIA16
SFSY/LRCK1B19
SDI014
77 XTAO
78 XTAI
55VDD
VDD
VDDM
26
25 VC
27
C28
D29
107SENS
XTCN
XRST
DATA
XLT
CLOCK
SENS
113GFS
114C2PO
TRDR
NC
NC12
22 SRDRCH3RIN 10
CH2RIN FRDR14
XRST100
66BCK
60BCK1
BCKIA15
SBSY/BCK1B18
5
+3.3V
IC303
7
5 1
326
27
25
7
5
24
23
22
46
45
44
43
39
42
41
6
19
21
40
38
18
3
2
1
28
35
37
STANBY
36PO11/BUCK/AD1
8MIACK7MICK
6MIDIO
4MICS
5MILP
2RESET
41SRMSTB
115SCOR SCOR
REG
CD MUTE DRIVEQ540, 541
IC101RF AMP, DSP, DAC
IC1002DRAM
IC1001VIDEO D/A
IC1003+5V REG.
IC1006VIDEO BUFFER
25,2
7,29
,30
VA0-7
15-2
2
VD0-3
1442623
RASCAS
A0-7
DQ1-4
X100214.31818MHz
60
XO1
59
XI1
X100117.734475MHz
58
XO2
57
XI2
+B SWITCHQ1007,1008
NO402
CN402
IIC-CLK
IIC-DATA
IIC-CLK
IIC-DATA
3
4
CNVSSJ1001
TXD1
RTS1 ON BOARDPROGRAMCLK1
RXD1
CN VSS
RESET
RESET
VIDEOOUT
VMUTE
133 WE2822 CE
3
2
6
9
7
8
RASCASWECE
398 DATASBSO
5110 SFSYWFCK
299 CLCKEXCK
6MUTE
56PDOWN
1,2,
24,2
59-
12,1
4-17
9 854
Q1004SBSY
Q1005,10096
3 41 2
11 1013 12
IC1005
Q1010
VCC55SENTSC
54RESETQ1002,1006
52DEN
37GDET
MUTE DATA
HALT_CLK
PAL/_NTSC
CDG-RST
EVER+3.3VCDG-DET
CDG/-POWER
CDG/_BGC
CDG/-DET
44VDOUT
Q1001
33 31 32 9
MUT
E DA
TA
HALT
_CLK
VMUT
E
CDG-
RST
CDG-
DET
CDG-
POW
ER
CNVS
S
VMUT
E
CDG
RST
CDG
DET
CD P
OWER
CNVS
S
VMUTE
CDG-POWER
1
423
PWR
VINSAVE
6VCC
VOUT
1 3VIN VOUT
: CD
: CDG
• SIGNAL PATH• R-CH is omitted due to same as L-CH.
: VIDEO
R-CH
CD-L
MP3 STBMP3 REQ
XTCN
MP3 REQ
MP3 STB
MP3 CLKMP3 CLK
MP3 ACKMP3 ACK
MP3 DATA OUTMP3 DATAMP3 LP
MP3 LP
MP3 CSMP3 RST
MP3 CSMP3 RST
MP3 DATA IN
SCOR
SENSCD-CLK
XLAT
CD-DATA
XRST
XTCN
SCOR
SENSCLOCK
XLT
DATA
XRST
CD MUTE
LMR
LMF
TM-R
TM-F
TBL_SENS
E-1E-2
E-3
OPEN SW
12RESET
30IIC-DATA
29IIC-CLK
IC701TABLE LOADINGMOTOR DRIVER
42
9
7
RIN
FIN
OUT1OUT2
IC712TABLE MOTOR DRIVER
42
97
RINFIN
OUT1OUT2
M751(TABLE LOADING)
M741(TABLE)
S751(OPEN)
ROTARYENCODER
INVERTER
M
M
IC731TBL ADDRESS
SENS
S711
E-3E-2E-1
M+9V
Q731
HCD-GNX780/GNX880
2828HCD-GNX780/GNX880
7-2. BLOCK DIAGRAM – TAPE/TUNER SECTION –
E MAINSECTION(Page 29)
D MAINSECTION(Page 29)
C MAINSECTION(Page 29)
ST-L
REC-OUT-L
TAPEMECHANISM
DECK
32
A TRIGDRIVE
Q340, 343
: PLAYBACK (DECK B): PLAYBACK (DECK A)
R-CH
FM/AM TUNER UNIT
CN509
ANTENNA
ST-L
FM ANT
AM ANT
AM ANT
ST-R
TUNED
ST-DINST-DOUT
ST-CLKST-CE
FM 75 COAXIAL
CAP M+
BTRGM+
ATRGM+
AHALFBHALF
B SHUTA SHUT
REC(FWD)
CAPM-CONT
B-TRIG
A-TRIGTC-RELAY
A-HALFB-HALF
BSHUTASHUT
REC BIASPB-A/B
ALCREC-MUTETC-MUTE/IO-EXP DATA OUT
AM
EQ OUT1A
B
TUNED
MC DOUT(ST)MC DIN(ST)ST-CLKST-CE
34
28 27 26
2421
5659
586765
9089
9448
95
83
5753
55
54
88
8684
8785
13 11 15 14
PB OUT1TAI1
REC IN1
AIN1
BIN1
A/B
ALC
ON/O
FF
REC
MUT
E ON
/OFF
MUT
E ON
/OFF
IC301DECK A/B SELECT,
PB/REC EQUALIZER AMP
IC401(2/5) SYSTEM CONTROL
(CD/TAPE MECHANISM CONTROL)
REC-OUT1EQ
TC-PB-L
TESTCONNECTOR
CN510
R-CH R
L
PBHEAD
DECK-A
DECK-B
BIAS OSCQ370
BIASTRAP
SWITCHDRIVE
Q377, 379
SWITCHDRIVE
Q382, 383
R-CH
R-CH
Q376
Q373, 374
Q381
L – CH
R – CH
R-CH
C380, L371
BIAS+9V
REC/PBHEAD
ERASEHEAD Q378,380
T301
L – CH
R – CH
: TUNER (FM/AM)
: RECORD
• SIGNAL PATH• R-CH is omitted due to same as L-CH.
CN102
SW VOL
GNX880
SYSTEMCONTROL
SW LED
SW VOL
LED-SW-ON
3
4
B TRIGDRIVE
Q342, 345
CAP MOTORDRIVE
Q341, 344
Ver. 1.1
HCD-GNX780/GNX880
2929HCD-GNX780/GNX880
7-3. BLOCK DIAGRAM – MAIN SECTION –
D(Page 28)
AMPSECTION(Page 30)
AMPSECTION(Page 30)
DISPLAY/POWERSECTION
TAPE/TUNERSECTION
(Page 31)
H
G
F
(Page 27)ACDG SECTION
C(Page 28)
(Page 28)E
TAPE/TUNER SECTION
TAPE/TUNER SECTION
J101
R-CH
VOLUMECONTROL
CPUINTERFACEINPUT
SELECTSWITCH
SURROUND ORDPL BUFFER
MID/BASS &TREBLE
R-CH
R-CH
COMMAND
TOUT1OUT1
VOLIN1
+
Q101
R-CH
R-CH
SPEANA
DBFB F/B
F-R
F-L
SW OUT
+
+
+
RV1100
IC1101MIC AMP
IC101INPUT SELECT SWITCH,
GRAPHIC EQUALIZER CONTROL,ELECTRICAL VOLUME
IC401(3/5)SYSTEM CONTROL
IC201SURROUND
VOL CONTROL
IC1506SELECTOR CCT
INA1
INEX1
INC1
SAOUT DATA
CLK
BB-A
1
BB-B
1
SWOUT
REC-OUT-L
R-CH
TC-PB-L
ST-L
CD-L
VREF
OUTPUTR
OUTP
UT L
DATA CLOCK
EFFE
CTOR
SEL
ECT
M16
530-
CLK
LINE
MUT
E
M61
529-
DATA
M61
529-
CLK
NC
NC
NC
NC
NC
VREF
GNX880
GNX880NC
NC
NC
NC
NC
NC
R-CH
LINE-MUE
J1100(1/3)
J1101(2/3)
L
R
MD/VIDEOAUDIO
IN
L
R
TVAUDIO
IN
LPF
I/F
2
14 15
24
18
22 1621
5
36
INB1IND1
4
19
41
40
37
39
38
MIC 1
ECHOLEVEL
RV1102MIC 1LEVEL
RV1101MIC 2LEVEL
17
8
MIC
RECB
1
7
MIC OUT
CAB
CAB
A+9V
34
2 33
32
IC1100DIGTALECHO
MC1P
MC2P
13 12
6 5
10 9
15 24
14
34 80 81 8266
+
11
31
25
35
29
7
23
2827
2622
3
MUTEQ180, 181
LINE MUTEDRIVE
Q544, 545
VREF
VREF
EFFE
CTOR
CTR
L 1
52
17 18
J1101(1/3)
J1100(2/3)
J1101(3/3)
J1100(3/3)
MIC 2 15
16
+ ++ PRELPF
POSTLPF
ADPCMENCODE
ADPCMDECODEADC DAC S/HDELAY
25
29
23
5 6 7
DA OUT
POOUT
AD IN
ALC
ALC
MIC VOLECHOVOL
MICVOL
VOLUMECONTROL
VOL1
VOL2
VOL3
4
8
30
Y COM3Y0Y
341
X COM3XOX
B A
131112
9 10
EFFE
CTOR
S1
49
EFFE
CTOR
S2
50
EFFE
CTOR
S0
36
A
IC1505MIXER L/R
7
13
5
3
IC1500MIXER
13
CD-R
IC1501DIGITAL DELAY
IC1503MULTIPLEXER
9
12
11
10
5
3
Q1508
Q1506
Q1502
LPF2OUTLPF1IN
LPF1OUT
LPF2IN
OP2OUT
OP2INCLOCK
A B
COM
C
++
14
3
10 911
2 7
BUFFERQ1509, 1510
: TUNER (FM/AM)
: CD: TAPE PLAY: RECORD: MIC INPUT
• SIGNAL PATH• R-CH is omitted due to same as L-CH.
7-6. PRINTED WIRING BOARD – BD84 BOARD – • See page 26 for Circuit Boards Location.
Ref. No. Location
IC101 E-9IC251 C-7IC301 C-9IC303 B-10
Q10 F-4
• SemiconductorLocation
: Uses unleaded solder.
TP117(VC)
JPO103(TE1)
JPO102(FE1)
TP124(RFAC)
R412
R422
R406
R252
R251
R182
R181
R423
R151
R143
R142R141
R133
R132
R131
R114
R113
R112
R111
IC303
IC251
CN101C2
52
C251
C194
C181
IC101
C162
C143
C142C141
C133
C132
C131
C124
C111
C122
C115
C114
C113
C112 C185
C186
R204
R203
C161
R161
C211
C317
R306
C212
IC301
C163
C320
C213
R421
C306
C307
C309
C310
C311
C313
R307
R163
R301
R303
R305
R351
R352
R353
R354
R401R402
R403R404
R405
R407 R4
08
R409
R410
R419
R411
CN201
S101(LIMIT)
M101(SPINDLE)
M102(SLED)
M
M
13
4 5
116
17
32
64
49
33 48
AMAIN
BOARDCN505
(Page 36)
OPTICAL PICK-UPBLOCK
(KSM-215DCP)
C10
C260
C14
C15
C16
C18
C11
R253
R191
R172
R121
R171
R162
C209
X171
R12
R11
R10Q10
E
C116
C184
C183
C303
C302
C305
C259
C258
C257
C255
C203
C196
C195
C201 C182
C171
C172
C210
C151
C134
C125
C123
R165
R13
C17
FB30
1
R201
R173
R205
C174
C318
C314
C308
C312
R313C315
R302
C316
11(11)1-864-566-
BD84 BOARD (SIDE A) BD84 BOARD (SIDE B)
11(11)1-864-566-
2 3 4 5 6 7 8 9 10 11
A
1
B
C
D
E
F
G
HCD-GNX780/GNX880
3333HCD-GNX780/GNX880
7-7. SCHEMATIC DIAGRAM – BD84 BOARD – • See page 54 and 55 for IC Block Diagrams. • See page 54 for Waveforms. • See page 58 for IC Pin Function Description.
JPO004
JPO10
JPO102
JPO103
C307
C309
C308
R303
C310
C311
R306
C312 C313
C314
C316
C315
R313
C320
C306
R351
C305 C302
R182
R181 C183
C184
C162
C174
R173
C161
R203
R151
C151
C143 C142
R143
R132 R133
C133
C132
C124 C122
C125
C131
R131 R121
C123C134
C141
R142
R141
C111C112C113C114
R112
R114
R111
R113
C115
C195R191
C163
R165
C210R162 R163
C196
IC101
C185
C181
C182
C201C209C203
R204R423
R422
R421
C213
R411R410R409R408R407R406R412
C211C212
R205
CN201
R302
C318R301 R305
C317
R401
R402
R405R404
R419R403
C194
C17R12
R11
C16
R10
C18
C11 C10 C14
C15
CN101
R252
R251
R253
C258
C259
C257C252
C260 C255
M102
M101
IC301
C251
R13
R307
IC303
C171C172
R172
R171
IC251
Q10
S101
C116X171
R352
R354
R353
R161
C186
R201
0uHFB301
TP117
TP124
C303
MDP
APC
FEI
TEI
0.1
0.1
474V
100k
0.1
0.1
0
0.1 0.1
474V
0.0022
0.1
220
0
0.1
100
2204V
0.1
100
100 226.3V
226.3V
0.1
0.1
0
0.1
0
0
10010V
0.1 0.0015
3.3k
10k 180k
0.01
0.47
330p 0.1
0.1
100p
1M 15k
0.10.1
0.1
1k
4.7k
0.0033470p0.0033470p
15k
15k
1k
1k
0.1
0.10
0.1
0
0.147k 100
0.1
CXD3059AR
470p
0.1
0.1
10010V
0.0110010V
0UH 100
100
100
22p
100100100100100100100
220p22p
0
31P
10k
0.01100k 100k
0.01
100
100
100100
100100
0.1
2204V100k
0
1
3.3
0.001
10 10 0.1
0.1
16P
22k
10k
10k
0.1
0.1
0.10.1
22010V
0.1
TC94A34FG-002
0.0068
1
10k
BH15FB1WG
22p27p
1M
470
BA5947FM-E2
2SA2119KLD DRIVER
(LIMIT)
10010V
16.9344MHz
100
100
100
100
470p
0UH
(VC)
(RFAC)
0.1
EF
F
EDABC
MIACKMICK
MIDIOMILPMICS
SCOR
SENS
CLOC
K
DATA
XRST
XLTCLOCK
SENSSCOR
XRST
MP3REQ
DATA
MP3STB
XTACN
XTAC
N
MP3STBDCBA
MP3RST
XLT
MP3REQ
MIACKMICK
MIDIOMILPMICS
MP3RST
SBSO
EXCK
WFC
K
SBSOEXCK
WFCK
(SPINDLE)
(SLED)
DRIVESL/SP MOTOR
RF AMP, DSP, DAC
DECODERMP3
REG
(3/3)
MAINBOARD
CN505(Page 39)
HCD-GNX780/GNX880
3434HCD-GNX780/GNX880
7-8. PRINTED WIRING BOARDS – CD MECHANISM SECTION – • See page 26 for Circuit Boards Location. : Uses unleaded solder.
M741(TABLE)
M751(TABLE LOADING)
1 3
CN721
IC731
CN731
CN741
CN742
C715
C731
C735
C736
R701
R711
R731
R721
R722
R723
R732
R733
R734
D701
D711
Q731
C751
IC712
IC701
CN704
C737
R713
R712
C741
R702
JW70
2JW
703
JW70
4JW70
5JW
706
JW70
7
JW708
JW71
1
CN703
S711ROTARY
ENCODER
CN70
2CN751
CN70
5
R751
C752
JW71
2
JW70
1
JW709
JW71
3
JW71
4
S751(OPEN)
CN701
JW71
0
R735
R736
BOARDMOTOR(LD)
12(12)1-687-133-
BOARDMOTOR(TB)
12(12)1-687-134-
BOARDSW
12(12)1-687-669-
BOARDSENSOR
12(12)1-687-132-
BOARDDRIVER
12(12)1-866-201-
M
M
14
12
12
E
1
1
9
9
GMAIN BOARD
CN511(Page 36)
1 2
12
2 3 4 5 6 7
A
1
B
C
D
E
Ref. No. Location
D701 C-5D711 C-5
IC701 C-5IC712 B-5IC731 B-2
Q731 B-4
• SemiconductorLocation
HCD-GNX780/GNX880
3535HCD-GNX780/GNX880
7-9. SCHEMATIC DIAGRAM – CD MECHANISM SECTION – • See page 54 for IC Block Diagrams.
CN721
CN711
E1E2E3
CN742
CN741
CN731
C751CN704
CN703
IC731
IC701
R702
R701
IC712
R713
R712
R711
C741
C715 CN701
C731 R751
R731
R732
R733
R734
R736
CN702
CN705
CN751
R723 R722 R721
C736C737 C735
D711
D701
C752
M741
M751
Q731
S751
2P
4P
5P
3P
3P
0.012P
4P
RPI-576
BA6956AN
100
470
BA6956AN
22k
4.7k
1k
0.01
10016V 13P
1050V 4.7k
100
10k
1k
12k
390
5P
2P
2P
4.7k 4.7k 4.7k
0.10.1 0.1
MTZJ-T-72-3.6B
MTZJ-T-72-5.1A
0.1
(TABLE)
(TABLE LOADING)
DTC114ESAINVERTER
(OPEN)
(Page 38)
(2/3)BOARDMAIN
CN511
HCD-GNX780/GNX880
3636HCD-GNX780/GNX880
7-10. PRINTED WIRING BOARD – MAIN BOARD – • See page 26 for Circuit Boards Location. : Uses unleaded solder.
7-15. SCHEMATIC DIAGRAM – PANEL BOARD – • See page 54 for IC Block Diagrams. • See page 54 for Waveforms. • See page 63 for IC Pin Function Description.
IC1001 6-707-420-01 IC TC9411AFG (BS, K)IC1002 6-704-474-01 IC MSM514400E-60TS-KIC1003 6-703-547-01 IC TA7805LSIC1005 8-759-584-98 IC SN74AHCT04NSRIC1006 6-703-378-01 IC NJM2575F1-TE2
< JACK >
J1001 1-794-970-11 JACK, PIN 1P (VIDEO OUT)
< COIL >
L1001 1-216-296-11 SHORT CHIP 0L1002 1-216-296-11 SHORT CHIP 0
IC1500 8-759-710-97 IC NJM4565M-DIC1501 8-759-496-41 IC M65850FP-E1IC1503 6-709-217-01 IC TC74LVX4051FTIC1505 8-759-710-97 IC NJM4565M-DIC1506 6-709-218-01 IC TC74LVX4052FT
R1500 1-216-809-11 METAL CHIP 100 5% 1/10WR1501 1-216-809-11 METAL CHIP 100 5% 1/10WR1502 1-216-809-11 METAL CHIP 100 5% 1/10WR1504 1-216-809-11 METAL CHIP 100 5% 1/10WR1505 1-216-833-11 METAL CHIP 10K 5% 1/10W
R1508 1-216-833-11 METAL CHIP 10K 5% 1/10WR1510 1-216-836-11 METAL CHIP 18K 5% 1/10WR1511 1-216-836-11 METAL CHIP 18K 5% 1/10WR1512 1-216-836-11 METAL CHIP 18K 5% 1/10WR1514 1-216-836-11 METAL CHIP 18K 5% 1/10W
R1515 1-216-836-11 METAL CHIP 18K 5% 1/10WR1516 1-216-833-11 METAL CHIP 10K 5% 1/10WR1517 1-216-833-11 METAL CHIP 10K 5% 1/10WR1519 1-216-864-11 SHORT CHIP 0R1520 1-216-864-11 SHORT CHIP 0
R1522 1-216-864-11 SHORT CHIP 0R1525 1-216-809-11 METAL CHIP 100 5% 1/10WR1526 1-216-833-11 METAL CHIP 10K 5% 1/10WR1527 1-216-809-11 METAL CHIP 100 5% 1/10WR1528 1-216-845-11 METAL CHIP 100K 5% 1/10W
R1529 1-216-845-11 METAL CHIP 100K 5% 1/10WR1530 1-216-815-11 METAL CHIP 330 5% 1/10WR1531 1-216-817-11 METAL CHIP 470 5% 1/10WR1532 1-216-820-11 METAL CHIP 820 5% 1/10WR1533 1-216-822-11 METAL CHIP 1.2K 5% 1/10W
R1534 1-216-824-11 METAL CHIP 1.8K 5% 1/10WR1535 1-216-826-11 METAL CHIP 2.7K 5% 1/10WR1536 1-216-828-11 METAL CHIP 3.9K 5% 1/10WR1537 1-216-841-11 METAL CHIP 47K 5% 1/10WR1538 1-216-838-11 METAL CHIP 27K 5% 1/10W
R1546 1-216-836-11 METAL CHIP 18K 5% 1/10WR1547 1-216-833-11 METAL CHIP 10K 5% 1/10WR1549 1-216-833-11 METAL CHIP 10K 5% 1/10WR1550 1-216-833-11 METAL CHIP 10K 5% 1/10WR1557 1-216-845-11 METAL CHIP 100K 5% 1/10W
DRIVERVer. 1.1
74
HCD-GNX780/GNX880
Ref. No. Part No. Description Remarks Ref. No. Part No. Description Remarks
R1558 1-216-845-11 METAL CHIP 100K 5% 1/10WR1559 1-216-845-11 METAL CHIP 100K 5% 1/10WR1560 1-216-845-11 METAL CHIP 100K 5% 1/10WR1565 1-216-825-11 METAL CHIP 2.2K 5% 1/10WR1566 1-216-825-11 METAL CHIP 2.2K 5% 1/10W
R1567 1-216-837-11 METAL CHIP 22K 5% 1/10WR1568 1-216-837-11 METAL CHIP 22K 5% 1/10WR1569 1-216-845-11 METAL CHIP 100K 5% 1/10WR1570 1-216-845-11 METAL CHIP 100K 5% 1/10WR1571 1-216-845-11 METAL CHIP 100K 5% 1/10W
R1572 1-216-821-11 METAL CHIP 1K 5% 1/10WR1573 1-216-819-11 METAL CHIP 680 5% 1/10WR1574 1-216-845-11 METAL CHIP 100K 5% 1/10WR1575 1-216-821-11 METAL CHIP 1K 5% 1/10WR1576 1-216-819-11 METAL CHIP 680 5% 1/10W
R1579 1-216-845-11 METAL CHIP 100K 5% 1/10WR1580 1-216-837-11 METAL CHIP 22K 5% 1/10WR1581 1-216-837-11 METAL CHIP 22K 5% 1/10WR1582 1-216-845-11 METAL CHIP 100K 5% 1/10WR1584 1-216-864-11 SHORT CHIP 0
R1585 1-216-864-11 SHORT CHIP 0R1586 1-216-864-11 SHORT CHIP 0R1589 1-216-803-11 METAL CHIP 33 5% 1/10WR1590 1-216-839-11 METAL CHIP 33K 5% 1/10WR1591 1-216-839-11 METAL CHIP 33K 5% 1/10W
R1592 1-216-864-11 SHORT CHIP 0R1594 1-216-864-11 SHORT CHIP 0R1595 1-216-864-11 SHORT CHIP 0R1600 1-216-864-11 SHORT CHIP 0R1602 1-216-864-11 SHORT CHIP 0
R1604 1-216-864-11 SHORT CHIP 0R1606 1-216-864-11 SHORT CHIP 0
FB150 1-216-864-11 SHORT CHIP 0FB260 1-216-864-11 SHORT CHIP 0FB261 1-216-864-11 SHORT CHIP 0FB262 1-216-864-11 SHORT CHIP 0FB263 1-216-864-11 SHORT CHIP 0
IC101 6-703-650-11 IC M61529FP-D60GIC201 6-703-651-11 IC M61530FP-D60G (GNX880)IC210 6-600-465-11 IC TOTX147 (CD DIGITAL OUT OPTICAL)IC301 6-702-130-01 IC HA12237FIC401 6-806-610-01 IC M30622MEP-A75FPU0
IC402 6-705-809-01 IC BD4929G-TRIC550 6-703-610-01 IC RT8H015C-T112-1IC560 8-759-394-36 IC BA09T
IC561 8-759-394-36 IC BA09TIC562 6-702-771-01 IC TA78033LS
JR101 1-216-864-11 SHORT CHIP 0JR102 1-216-864-11 SHORT CHIP 0JR104 1-216-864-11 SHORT CHIP 0JR107 1-216-864-11 SHORT CHIP 0JR108 1-216-864-11 SHORT CHIP 0
JR109 1-216-864-11 SHORT CHIP 0JR110 1-216-864-11 SHORT CHIP 0JR112 1-216-864-11 SHORT CHIP 0JR113 1-216-864-11 SHORT CHIP 0JR114 1-216-864-11 SHORT CHIP 0
JR115 1-216-864-11 SHORT CHIP 0JR116 1-216-864-11 SHORT CHIP 0JR117 1-216-864-11 SHORT CHIP 0JR119 1-216-864-11 SHORT CHIP 0JR120 1-216-864-11 SHORT CHIP 0
JR121 1-216-864-11 SHORT CHIP 0JR122 1-216-864-11 SHORT CHIP 0JR123 1-216-864-11 SHORT CHIP 0JR124 1-216-296-11 SHORT CHIP 0JR125 1-216-296-11 SHORT CHIP 0
JR126 1-216-296-11 SHORT CHIP 0JR127 1-216-864-11 SHORT CHIP 0JR129 1-216-864-11 SHORT CHIP 0JR130 1-216-864-11 SHORT CHIP 0JR131 1-216-864-11 SHORT CHIP 0
IC600 8-749-017-06 IC STK412-150 (GNX880)IC600 8-749-017-07 IC STK412-170 (GNX780)
< JUMPER RESISTOR >
JR600 1-216-296-11 SHORT CHIP 0JR601 1-216-296-11 SHORT CHIP 0JR602 1-216-296-11 SHORT CHIP 0JR603 1-216-296-11 SHORT CHIP 0JR612 1-216-864-11 SHORT CHIP 0
0T1200 1-443-584-11 POWER TRANSFORMER (GNX880)0T1200 1-443-973-11 POWER TRANSFORMER (GNX780)
SURROUND SW TRANSVer. 1.1
HCD-GNX780/GNX880
REVISION HISTORY
Clicking the version allows you to jump to the revised page.Also, clicking the version at the upper right on the revised page allows you to jump to the next revisedpage.
Ver. Date Description of Revision
1.0 2006.03 New
1.1 2006.09 Change of IC401 (microprocessor). (ECB-47190)
Addition of C101, D103, 104, 403, 404, R531 and 581 to main board.
Change of R532 and 582 in main board. (ECB-50136)
Change of C658 and C678 on PA board. (ECB-51303)
Addition of C1142 to MIC board. (ECB-51550)
Addition of R1600, 1602, 1604 and 1606 to effector board. (ECB-54582)
Change of R577 on main board. (ECB-55962)
Change of C804 and 805 on surround board. (ECB-56587)
Change of R680, 681, 690, 691 on PA board. (ECB-58664)
Change of R602, 625, 652 on PA board. (ECB-61224)
Change of R802 on surround board. (ECB-64486)
Change of R1200 on primary board. (ECB-66013)
Suffix change for effector combind board from -12 to -13. (ECB-66252)
Addition of C1601, 1602, R1604 and 1606 to effector board. (ECB-66783)
Suffix change of S970 on function board. (ECB-66838)
Change of R602, 625, 652, R649, 660, 661 on PA board. (ECB-74903)