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
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
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
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/
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
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
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
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
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
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
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.
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.
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
CHECK
Carry out the “S curve check” in “CD section adjustment” and
check that the S curve waveforms is output three times.
check that the S curve waveforms is output three times.
SECTION 1
SERVICING NOTES
• MODEL IDENTIFICATION
– Back Panel –
– 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.
instruction manual.
LOCATION OF CONTROLS
– Front Panel –
– 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
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
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
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;
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
REPEAT qs
SPECTRUM 8
SURROUND el
SURROUND SPEAKER MODE
wj
TAPE A/B ed
TUNER/BAND ef
TUNER MEMORY e;
VOLUME qa
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
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.
remote.
When you set the time for the first time,
proceed to step 5.
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.
time, start over from step 2.
Note
The clock settings are canceled when you disconnect
the power cord or if a power failure occurs.
the power cord or if a power failure occurs.
Remote Control
D
E
E
R
S
T
U
V
A
B
C
Y
X
W
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;
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
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
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
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 –