DOWNLOAD Sony HCD-GX8000 / HCD-RG77 Service Manual ↓ Size: 6.84 MB | Pages: 71 in PDF or view online for FREE

Model
HCD-GX8000 HCD-RG77
Pages
71
Size
6.84 MB
Type
PDF
Document
Service Manual
Brand
Device
Audio
File
hcd-gx8000-hcd-rg77.pdf
Date

Sony HCD-GX8000 / HCD-RG77 Service Manual ▷ View online

3
HCD-GX8000/RG77
TABLE  OF  CONTENTS
1.
SERVICING NOTES
................................................
4
2.
GENERAL
Location of Controls .......................................................
5
Setting the Clock .............................................................
6
3.
DISASSEMBLY
3-1. Disassembly Flow ...........................................................
7
3-2. Top Case ..........................................................................
8
3-3. Loading Panel ..................................................................
8
3-4. CD Mechanism Deck ......................................................
9
3-5. Front Panel Section .........................................................
9
3-6. Back Panel Section .......................................................... 10
3-7. MAIN Board ................................................................... 10
3-8. Base Unit (BU-30BD60C) .............................................. 11
3-9. DRIVER Board, MOTOR Board and
SENSOR (CD) Board ..................................................... 11
3-10. Tape Mechanism Deck (TCM-230AWR41CS) .............. 12
3-11. Belt .................................................................................. 12
3-12. SW Board, HEAD (A) Board and HEAD (B) Board ..... 13
4.
TEST  MODE
.............................................................. 14
5.
MECHANICAL  ADJUSTMENTS
....................... 18
6.
ELECTRICAL  ADJUSTMENTS
Deck section .................................................................... 18
CD Section ...................................................................... 21
7.
DIAGRAMS
7-1. Block Diagram  – CD SERVO Section – ....................... 23
7-2. Block Diagram  – TUNER/TAPE DECK Section – ...... 24
7-3. Block Diagram  – MAIN Section – ................................ 25
7-4. Block Diagram  – DISPLAY/KEY CONTROL/
POWER SUPPLY Section – ........................................... 26
7-5. Note for Printed Wiring Boards and
Schematic Diagrams ....................................................... 27
7-6. Printed Wiring Board  – BD Board – ............................. 28
7-7. Schematic Diagram  – BD Board – ................................ 29
7-8. Printed Wiring Boards
– DRIVER/MOTOR/SENSOR (CD) Boards – .............. 30
7-9. Schematic Diagram
– DRIVER/MOTOR/SENSOR (CD) Boards – .............. 30
7-10. Printed Wiring Boards
– SW/HEAD (A)/HEAD (B) Boards – .......................... 31
7-11. Schematic Diagram  – SW Board – ................................ 32
7-12. Printed Wiring Board  – MAIN Board – ........................ 33
7-13. Schematic Diagram  – MAIN Board (1/4) – .................. 34
7-14. Schematic Diagram  – MAIN Board (2/4) – .................. 35
7-15. Schematic Diagram
– MAIN (3/4)/HEAD (A)/HEAD (B) Boards – ............. 36
7-16. Schematic Diagram  – MAIN Board (4/4) – .................. 37
7-17. Printed Wiring Board  – GAME IN Board – .................. 38
7-18. Schematic Diagram  – GAME IN Board – ..................... 39
7-19. Printed Wiring Boards
– POWER/SENSOR Boards – ........................................ 40
7-20. Schematic Diagram  – POWER/SENSOR Boards – ..... 41
7-21. Printed Wiring Boards
– PANEL/CD OPEN/CD SWITCH Boards – ................ 42
7-22. Schematic Diagram
– PANEL/CD OPEN/CD SWITCH Boards – ................ 43
7-23. Printed Wiring Boards
– PAD SWITCH/VOL Boards – ..................................... 44
7-24. Schematic Diagram  – PAD SWITCH/VOL Boards – ... 45
7-25. Printed Wiring Boards
– MAIN TRANS/SUB-TRANS Boards – ...................... 46
7-26. Schematic Diagram
– MAIN TRANS/SUB-TRANS Boards – ...................... 47
7-27. IC Pin Function Description ........................................... 49
8.
EXPLODED  VIEWS
8-1. Panel Section ................................................................... 53
8-2. Front Panel Section ......................................................... 54
8-3. Chassis Section ............................................................... 55
8-4. CD Mechanism Deck Section ......................................... 56
8-5. Base Unit Section (BU-30BD60C) ................................. 57
8-6. Tape Mechanism Deck Section
(TCM-230AWR41CS) .................................................... 58
9.
ELECTRICAL  PARTS  LIST
............................... 59
Ver 1.1
4
HCD-GX8000/RG77
NOTES  ON  HANDLING  THE  OPTICAL  PICK-UP
BLOCK  OR  BASE  UNIT
The laser diode in the optical pick-up block may suffer electro-
static break-down because of the potential difference generated
by the charged electrostatic load, etc. on clothing and the human
body.
During repair, pay attention to electrostatic break-down and also
use the procedure in the printed matter which is included in the
repair parts.
The flexible board is easily damaged and should be handled with
care.
NOTES ON LASER DIODE EMISSION CHECK
The laser beam on this model is concentrated so as to be focused
on the disc reflective surface by the objective lens in the optical
pick-up block. Therefore, when checking the laser diode emis-
sion, observe from 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
check that the S curve waveforms is output three times.
SECTION  1
SERVICING  NOTES
• MODEL  IDENTIFICATION
– Back Panel –
MODEL
PART No.
E, Singapore, Chilean and Peruvian models
4-237-780-1
[]
Mexican and Argentina models
4-237-780-6
[]
US model
4-237-780-9
[]
PART No.
5
HCD-GX8000/RG77
SECTION  2
GENERAL
This section is extracted from
instruction manual.
LOCATION  OF  CONTROLS
–  Front Panel –
CD eg
CD SYNC HI-DUB qf
DECK A A wh
DECK B A qh
DIMMER 9
DIRECTION q;
DISC 1~3 4
DISC SKIP EX-CHANGE 5
Disc tray 3
DISPLAY 7 
EDIT q;
EFFECT ON/OFF rs 
ENTER ra
FM MODE qs
GAME ea
GAME EQ rd
GAME INPUT wd
GAME MIXING wl
GROOVE rf 
IR (receptor) 2
MD (VIDEO) es
MIC wa 
MIC LEVEL w;
MOVIE EQ ek
MUSIC EQ eh
OPEN/CLOSE Z 6
P FILE r;
PHONES (jack) ql
PLAY MODE e;
REC PAUSE/START qg
REPEAT qs
SPECTRUM 8
SURROUND el
SURROUND SPEAKER MODE
wj
TAPE A/B ed
TUNER/BAND ef 
TUNER MEMORY e;
VOLUME qa
BUTTON DESCRIPTIONS
@/1 1
hH ws
x qd
X wk
> qj
. wg
M/+  qk
m/–  wf
v/V/b/B ej
ALPHABETICAL ORDER
A - D
M - Q
1
2 3
4
5
6
7
8
9
0
K
L
M
N
O
qh
qj
qk
ql
w;
wa
ws
W
X
wg
wh
wj
wk
wl
e;
ea
es
eg
ed
ef
ej
eh
ek
el
ra r;
rd rs
rf
E - L
R - Z
6
HCD-GX8000/RG77
2
3
6
5
1
4
Setting the clock
1
Turn on the system.
2
Press CLOCK/TIMER SET on the
remote.
When you set the time for the first time,
proceed to step 5.
3
Press 
V
 or 
v
 repeatedly to select
CLOCK SET.
4
Press ENTER.
5
Press 
V
 or 
v
 repeatedly to set the hour.
6
Press ENTER.
7
Press 
V
 or 
v
 repeatedly to set the
minute.
8
Press ENTER.
The clock starts functioning.
Tip
If you have made a mistake or want to change the
time, start over from step 2.
Note
The clock settings are canceled when you disconnect
the power cord or if a power failure occurs.
Remote Control
D
E
R
S
T
U
V
A
B
C
Y
X
W
qh
qj
qa
qs
qd
qf
7
q;
qg
8
9
6
CD ql
CLEAR 7
CLOCK/TIMER SELECT 2
CLOCK/TIMER SET 3
D.SKIP 9
ENTER qd
EFFECT ON/OFF qf
GAME w;
MD (VIDEO) q;
PRESET – wd
PRESET + wf
PRESET EQ qj
P FILE qh
SURROUND SPEAKER MODE
qs
SURROUND qs
SLEEP 1
TAPE A/B qa
TUNER/BAND qk
TUNING – wa
TUNING + ws
VOL +/– 8
BUTTON DESCRIPTIONS
@/1 4
hH wg
X 5
x 6
. wd
> wf
m wa
M ws
v/V/b/B qg
A - M
P - Z
ALPHABETICAL ORDER
1 ANTENNA terminal
2 CD DIGITAL OUT OPTICAL terminal
3 MD/VIDEO (AUDIO) IN jack
4 VIDEO OUT jack
5 FRONT/SURROUND SPEAKER terminal
6 VOLTAGE SELECTOR switch
(E and Singapore models)
– Back Panel –
Page of 71
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Sony HCD-GX8000 / HCD-RG77 Service Manual ▷ Download

  • DOWNLOAD Sony HCD-GX8000 / HCD-RG77 Service Manual ↓ Size: 6.84 MB | Pages: 71 in PDF or view online for FREE
  • Here you can View online or download the Service Manual for the Sony HCD-GX8000 / HCD-RG77 in PDF for free, which will help you to disassemble, recover, fix and repair Sony HCD-GX8000 / HCD-RG77 Audio. Information contained in Sony HCD-GX8000 / HCD-RG77 Service Manual (repair manual) includes:
  • Disassembly, troubleshooting, maintenance, adjustment, installation and setup instructions.
  • Schematics, Circuit, Wiring and Block diagrams.
  • Printed wiring boards (PWB) and printed circuit boards (PCB).
  • Exploded View and Parts List.