Sony HCD-GX20 / MHC-GX20 Service Manual ▷ View online
37
HCD-GX20
Pin No.
79
80
81
82
83
84
85
86
87
88
89
90
91
92
93
94
95
96
97
98
99
100
I/O
I
I
I
I
I
I
O
O
O
O
–
–
O
O
O
O
O
I
O
O
I
O
Pin Name
TUNER STEREO
CD OPEN
TAPE PHOTO A
TAPE PHOTO B
TAPE AMS
PROTECTOR SENSOR
PT8300 LATCH
CD LED
TUNER LED
TAPE LED
VSS
VDD
GAME LED
GAME MIX LED
LC72131 CE
BD3871 DATA/LATCH
LC72131,PT8300
DATA OUT
LC72131 DATA IN
LC72131,BD3871,
PT8300 CLK
LA9241M,LC78622NE
COIN
LA9241M,LC78622NE
SQOUT
LA9241M,LC78622NE
SQCK
Description
Stereo tuning signal input
CD tray open switch signal input
A deck photo sensor singanl input
B deck photo sensor singanl input
AMS signal input
Power amplifier circuit protection signal input
Latch signal output to the I/O expander
CD LED control signal output
TUNER LED control signal output
TAPE LED control signal output
Ground
Power supply
GAME LED control signal output
GAME MIX LED control signal output
Chip select signal output to the PLL tuner IC
Data/latch signal output to the sound processor
Data output to the PLL tuner IC and the I/O expander
Data input from the the PLL tuner IC
Clock output to the PLL tuner IC, the sound processor and the I/O expander
CD command data signal output
CD subcode Q signal input
CD command clock signal output
38
HCD-GX20
NOTE:
•
-XX, -X mean standardized parts, so they may
have some differences from the original one.
have some differences from the original one.
•
Items marked “*” are not stocked since they
are seldom required for routine service. Some
delay should be anticipated when ordering these
items.
are seldom required for routine service. Some
delay should be anticipated when ordering these
items.
The components identified by mark
0
or
dotted line with mark
0
are critical for safety.
Replace only with part number specified.
Les composants identifiés par une marque
0
sont critiques pour la sécurité.
Ne les remplacer que par une pièce portant
le numéro spécifié.
le numéro spécifié.
•
The mechanical parts with no reference number
in the exploded views are not supplied.
in the exploded views are not supplied.
•
Hardware (# mark) list and accessories and
packing materials are given in the last of this
parts list.
packing materials are given in the last of this
parts list.
6-1. Main Section
Ref. No.
Part No.
Description
Remarks
Ref. No.
Part No.
Description
Remarks
CD mechanism deck section (CDM58F-K6)
#1
#1
#5
#5
#1
#1
#1 #1
#1
#1
#2
#5
#5
#1
a
a
b
b
#2
3
2
9
1
1
1
1
4
front panel
section
section
MAIN board section
not
supplied
not
supplied
6
7
8
1
3-363-099-41 SCREW (CASE 3 TP2)
2
4-224-549-21 CASE (SIDE-L)
3
4-238-616-01 CD DOOR
4
4-224-550-81 CASE (TOP)
6
1-684-302-11 SUB TRANS BOARD
7
1-684-298-11 VIDEO OUT BOARD
8
4-234-701-01 BACK PANEL
9
4-224-548-61 CASE (SIDE-R)
#1
7-685-647-79 SCREW +BVTP
3X10 TYPE2 N-S
#2
7-685-871-01 SCREW +BVTT
3X6
(S)
#5
7-685-872-09 SCREW +BVTT
3X8
(S)
SECTION 6
EXPLODED VIEWS
39
HCD-GX20
6-2. Front Panel Section
Ref. No.
Part No.
Description
Remarks
Ref. No.
Part No.
Description
Remarks
51
52
53
54
57
57
58
59
55
55
56
57
FLD601
not supplied
not supplied
not supplied
65
60
62
63
61
64
68
69
66
70
67
51
A-4746-787-A PANEL ASSY, FRONT
52
4-233-980-01 RUBBER FOOT
53
4-234-019-01 VOLUME KNOB
54
4-238-609-01 DISPLAY WINDOW
55
4-224-104-41 DAMPER
56
1-773-119-11 WIRE (FLAT TYPE) (19 CORE)
57
4-218-254-21 SCREW (M2.6), +PTPWH
58
A-4676-626-A PANEL BOARD, COMPLETE
59
1-684-305-11 KEY BOARD BOARD
60
1-796-360-11 DECK, MECH (CWL43FF48)
61
4-233-981-01 CASSETTE DOOR SPRING (L)
62
4-238-614-01 FL HOLDER (R)
63
4-238-613-01 FL HOLDER (L)
64
1-684-299-11 REM BAORD
65
4-233-982-01 CASSETTE DOOR SPRING (R)
66
4-231-836-01 SPRING (HEART CAM (A))
67
4-231-824-01 HEART CAM (A)
68
4-231-841-01 SPRING (HEART CAM (B))
69
4-231-825-01 HEART CAM (B)
70
3-038-018-01 EMBLEM, SONY
FLD601 1-518-792-11 INDICATOR TUBE, FLUORESCENT
Ver 1.3 2003.12
40
HCD-GX20
6-3. MAIN Board Section
Ref. No.
Part No.
Description
Remarks
Ref. No.
Part No.
Description
Remarks
The components identified by
mark
mark
0
or dotted line with mark
0
are critical for safety.
Replace only with part number
specified.
specified.
Les composants identifiés par
une marque
une marque
0
sont critiques
pour la sécurité.
Ne les remplacer que par une
pièce portant le numéro spécifié.
Ne les remplacer que par une
pièce portant le numéro spécifié.
#2
#2
#4
#2
#3
#3
103
107
106
101
102
105
T911
F919
F914
F920
not supplied
not
supplied
not supplied
104
101
1-751-688-11 WIRE (FLAT TYPE) (13 CORE)
102
A-4676-636-A MAIN BOARD, COMPLETE
103
4-988-533-01 HOLDER, PWB
0 104
1-783-532-11 CORD, POWER
105
1-684-301-11 TRANS BOARD
* 106
3-703-244-00 BUSHING (2104), CORD
107
A-4676-627-A POWER BOARD, COMPLETE
0 F914
1-533-454-11 FUSE, GLASS TUBE (DIA. 5) (6.3A/125V)
0 F919
1-533-454-11 FUSE, GLASS TUBE (DIA. 5) (6.3A/125V)
0 F920
1-533-454-11 FUSE, GLASS TUBE (DIA. 5) (6.3A/125V)
0 T911
1-437-678-11 TRANSFORMER, POWER (MAIN)
#2
7-685-871-01 SCREW +BVTT
3X6
(S)
#3
7-685-880-09 SCREW +BVTT
4X6
(S)
#4
7-685-650-79 SCREW +BVTP
3X16 TYPE2 IT-3
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