Sony HCD-GX750 / HCD-RG551 / HCD-RX550 / MHC-GX750 / MHC-RG551S Service Manual ▷ View online
53
HCD-GX750/RG551/RX550
IC101 BD3401KS2 (MAIN BOARD)
IC201 BA3126N (MAIN BOARD)
IC371 BU2099FV (MAIN BOARD)
IC602 BU2099FV (PANEL BOARD)
IC602 BU2099FV (PANEL BOARD)
0
+
TNF2
TNF1
SUR1
SUR2
LINEOUT2
LINEOUT1
SAOUT2
SAOUT1
CAP
MIC
GAME L
GAME R
TUNER L
TUNER R
MD L
MD R
VOLOUT1
TONE OUT1
TONE OUT2
AMS OUT
BNF2
BNF1
MNF1
MNF2
MOUT1
MOUT2
BOUT2
BOUT1
BBNF1
BBIN1
VIN1
VIN2
VOLOUT2
BBNF2
BBIN2
LF1
LF2
LF3
LF4
SWOUT
FILTER
1/2 Vcc
Vcc
GND
VDD
SI
SC
ALC
CD L
CD R
TAPE L
TAPE R
PBNF2
PBNF1
PBOUT2
PBOUT1
TAPE A1
TAPE A2
TAPE B1
TAPE B2
RECNF2
RECNF1
DIGITAL
CONTROL
Di-LIMITER
RECOUT2
RECOUT1
46
45
44
43
42
41
40
39
38
37
36
35
34
33
48
47
17
18
19
20
21
22
23
24
25
26
27
28
29
30
31
32
1
2
3
4
5
6
7
8
9
10
11
12
13
14
15
16
64
63
62
61
60
59
58
57
56
55
54
53
52
51
50
SURROUND
ATT
ATT
BUFFER
MIX
MIC MIX
VOCAL FADER
+
-
+
-
BASS MIDDLE TREBLE
BASS MIDDLE TREBLE
G
fc=100HZ
f
ALC
ALC
INPUT
SELECTOR
+
+
-
+
-
+
-
+
-
+
-
+
-
+
-
+
-
+
-
+
-
+
-
+
-
+
-
+
-
+
-
+
-
49
SOFT
SWITCH
+
+
-
+
-
+
1
REC SW1
2
3
PB SW1
GND
4
CONT
5
GND
6
V
CC
7
PB SW2
8
GND
9
REC SW2
V
SS
N.C.
DATA
CLOCK
LCK
OUTPUT BUFFER (Open Drain)
12BIT SHIFT REGESTER
Q0
Q1
Q2
Q3
Q4
12BIT STORAGE
RAGESTER
RAGESTER
CONTOROL
CIRCUIT
L. P. F
V
DD
OE
SO
Q11
Q10
Q9
Q8
Q7
Q6
Q5
1
2
3
5
6
7
8
4
10
16
15
14
13
12
11
9
17
18
19
20
54
HCD-GX750/RG551/RX550
SECTION 6
EXPLODED VIEWS
NOTE:
• The mechanical parts with no reference
number in the exploded views are not supplied.
• Items marked “*” are not stocked since
they are seldom required for routine service.
Some delay should be anticipated
when ordering these items.
Some delay should be anticipated
when ordering these items.
• -XX and -X mean standardized parts, so
they may have some difference from the
original one.
original one.
• Accessories are given in the last of this
parts list.
• Abbreviation
CND : Canadian model
MX : Mexican model
AR
MX : Mexican model
AR
: Argentine model
E2
: 120 V AC area in E model
E3
: 240 V AC area in E model
E51 : Chilean and Peruvian model
Ref. No.
Part No.
Description
Remark
6-1. MAIN SECTION
Ref. No.
Part No.
Description
Remark
1
3-363-099-32 SCREW (CASE 3 TP2)
2
4-245-184-61 CASE (SIDE-R) (US)
2
4-245-184-71 CASE (SIDE-R) (EXCEPT US)
3
4-245-183-61 CASE (SIDE-L) (US)
3
4-245-183-71 CASE (SIDE-L) (EXCEPT US)
4
4-252-196-81 DOOR, CD (RX550)
4
4-252-196-91 DOOR, CD (RG551)
4
4-253-803-01 DOOR, CD (GX750)
5
4-244-849-61 CASE (TOP) (US)
5
4-244-849-71 CASE (TOP) (EXCEPT US)
6
1-400-285-11 F-BEAD, E2515MRT
7
1-769-940-11 WIRE (FLAT TYPE) (11 CORE)
FAN901 1-763-117-13 FAN, DC
0 PT902
X-4956-292-1 TRANS ASSY, SUB (GX750/RX550)
0 PT902
X-4956-294-1 TRANS ASSY, SUB (RG551:E2,E3,E51,AR)
0 PT902
X-4956-322-1 TRANS ASSY, SUB (RG551:MX)
TM901
1-693-615-11 TUNER PACK (FM/AM) (ANTENNA) (RG551)
TM901
1-693-631-11 TUNER PACK (FM/AM) (ANTENNA) (RX550)
TM901
1-693-655-11 TUNER PACK (FM/AM) (ANTENNA) (GX750)
#1
7-685-647-79 SCREW +BVTP 3X10 TYPE2 IT-3
#2
7-685-646-79 SCREW +BVTP 3X8 TYPE2 IT-3
The components identified by
mark 0 or dotted line with mark
0 are critical for safety.
Replace only with part number
specified.
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 piéce
portant le numéro spécifié.
marque 0 sont critiques pour
la sécurité.
Ne les remplacer que par une piéce
portant le numéro spécifié.
#1
#1
#1
#1
#1
#1
#1
#1
#1
#1
#1
#1
#1
#1
#1
#2
4
3
2
1
1
1
1
5
chassis section
not
supplied
7
6
not
supplied
not
supplied
FAN901
TM901
CDM74-F1BD81
#2
not
supplied
not
supplied
front panel section
not supplied
(VIDEO OUT board)
(VIDEO OUT board)
not supplied
(SUB TRANS board)
(SUB TRANS board)
PT902
#2
Ver. 1.1
55
HCD-GX750/RG551/RX550
6-2. FRONT PANEL SECTION (1)
Ref. No.
Part No.
Description
Remark
Ref. No.
Part No.
Description
Remark
51
4-951-620-01 SCREW (2.6X8), +BVTP
52
1-796-485-51 DECK, MECHANICAL
53
1-769-975-11 WIRE (FLAT TYPE) (13 CORE)
54
1-773-048-11 WIRE (FLAT TYPE) (17 CORE)
55
A-4751-531-A PANEL BOARD, COMPLETE (GX750)
55
A-4751-540-A PANEL BOARD, COMPLETE (RG551)
55
A-4751-721-A PANEL BOARD, COMPLETE (RX550)
FL601
1-518-976-11 INDICATOR TUBE, FLUORESCENT
not supplied
not supplied
not supplied
not supplied
(H/P JACK board)
(H/P JACK board)
not supplied
(GAME JACK board)
(GAME JACK board)
FL601
not supplied
(REM board)
(REM board)
51
53
51
51
51
52
51
55
54
56
HCD-GX750/RG551/RX550
6-3. FRONT PANEL SECTION (2)
Ref. No.
Part No.
Description
Remark
Ref. No.
Part No.
Description
Remark
101
4-231-841-01 SPRING (HEART CAM-B)
102
4-231-825-01 CAM (B), HEART
103
4-224-104-41 DAMPER
104
4-231-824-01 CAM (A), HEART
105
4-231-836-01 SPRING (HEART CAM-A)
106
4-252-217-01 BUTTON, WAT (GX750)
not supplied
not supplied
not supplied
101
102
103
103
104
105
106
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