Sony MHC-GX99 / SA-WG99 Service Manual ▷ View online
5
5
SA-WG99
SA-WG99
1-1. PRINTED WIRING BOARDS — MAIN SECTION —
•
:Uses unleaded solder.
•
See page 3 for Circuit Boards Location.
• Semiconductor
Location
Ref. No.
Location
D300
E-2
D400
G-9
D502
F-9
D504
F-6
D505
D-10
D506
D-7
D507
C-10
D508
F-10
D509
C-10
D600
B-9
D601
C-9
D602
D-7
D603
D-7
D605
E-7
D606
B-7
D607
B-6
D608
B-6
D609
B-6
IC400
G-8
Q200
C-5
Q201
D-6
Q202
D-6
Q400
G-9
Q503
G-7
Q504
G-6
Q505
G-6
Q506
G-6
Q507
F-6
Q508
E-5
Q509
F-10
Q510
E-10
Q511
G-10
Q600
D-6
IC400
1-872-047-
12
(12)
D509
D508
D505
D605
D504
D506
D507
D400
D502
Q504
Q200
E
E
Q507
Q510
E
Q201
Q508
Q511
E
E
Q503
Q505
Q400
Q202
Q506
R400
R401
R402
R210
R404
R211
R405
R212
R406
R213
R407
R214
R408
R409
R602
R603
R605
R411
R606
R412
R607
R413
R414
R416
R417
R418
R419
R420
R421
R504
R505
R535
R506
R507
R534
R508
R509
R510
R511
R512
R514
R515
R516
R517
E
E
E
E
E
E
E
E
R518
R519
R520
R521
R525
R526
R527
R528
R529
R531
R532
R533
R200
R201
R202
R203
R204
R205
R206
R207
R208
R209
C400
C407
C408
A001
JW207
JW208
R522
R523
R524
JW217
JW212
C607
CN500
JW219
C509
CN501
1
3
C510
JW201
JW206
C508
C507
JW203
JW216
JW218
JW214
1
13
JW210
JW209
JW211
JW205
JW400
C506
CN200
RY500
C504
C505
C503
C502
R513
ET600
SPEAKER
FAN
JW213
JW401
JW204
JW202
C605
C410
C603
C602
C409
C406
C404
C403
C401
C207
C206
C205
C204
C203
C202
C200
CN600
CN201
R410
R403
D603
D609
(CHASSIS)
1
8
D608
D602
D606
D600
D607
D601
Q600
Q509
MAIN BOARD
D300
1-872-051-
CN300
1
5
RV300
R300
12
(12)
CN100
1 2
1-872-050-
12
(12)
J100
J100
INPUT BOARD
(CHASSIS)
C600
C601
VOL-LED BOARD
A
POWER BOARD
CN702
(Page 7)
INPUT
SUBWOOFER
LEVEL
MIN MAX
SUBWOOFER
ON/OFF
2
3
4
5
6
7
8
9
10
11
1
A
B
C
D
E
F
G
H
6
6
SA-WG99
SA-WG99
1-2. SCHEMATIC DIAGRAM — MAIN SECTION —
• See page 4 for IC Block Diagram.
IC400
IC B/D
A
POWER BOARD
CN702
(Page 8)
3.6
3.0
11.5
5.9
11.5
5.2
5.0
11.5
4.4
0.7
0
0
0
11.5
17.8
12.2
0
11.5
12.8
0
0
0
16
15.8
15.7
0.7
-3.0
0
17.8
15.8
17.8
0.4
0
0
17.8
11.5 11.5
0
0
-51
11.5
1.1
-51.8
51.6
0
0
No mark:Power on
1k
R201
100k
R202
2SC3052EF-T1-LEF
BUFFER
BUFFER
BUFFER
Q200
0
R208
2SC3052EF-T1-LEF
Q201
10k
R210
10k
R211
2SC3052EF-T1-LEF
Q202
1k
R400
50V
2.2
C401
0.22
R410
100V
100
C404
UDZW
-TE17-12B
D605
7
6
5
4
3
2
1
13
12
11
10
9
8
STK404-130S
POWER AMP
IC400
PT
-1
PT
-2
SW IN
SW IN NF
SUB
-PRE
+PRE (12V)
-VCC
+VCC
-RE
+RE
2SA2026
Q400
Q400
100k
R200
R605 2.2k
R
Y500
R420 2.2k
R508 100k
R534 15k
R510
47k
R512 47k
R511 22k
R507
100
R506
47k
R509
10k
C502
100
16V
R505
100k
R519
22k
R518
22k
R521 12k
R520 56k
1
2
WHT
2P
CN500
SP-OUT
SPEAKER
FAN
SP-GND
C407
2200p
50V
R413
10k
R418
10
Q506
2SC5625
Q507
Q507
2SC3052EF-
T1-LEF
T1-LEF
Q505
Q505
2SC3052EF-T1-LEF
Q504
Q504,
RELAY OFF
2SC3052EF-T1-LEF
16V
47
C403
C409
0.1
50V
C410
0.1
50V
C406 47
50V
R403
100 1/4W
2SA1235TP-1EF
Q503
TEMPERATURE
PROTECTION
PROTECTION
50V
10
C200
10
R416
10
R419
10
R417
C408
3p 50V
CJ
50V
2.2
C504
50V
0.22
C202
50V
0.22
C203
C602
3300
71V
C603
3300
71V
1N5402-F46
D601
1N5402-F46
D600
0.1
100V
C600
0.1
100V
C601
1N5402-F46
D603
1N5402-F46
D602
R513
1.8k 2W
56k
R401
56k
R414
Q600
2SC2603TP-EF
+12V REG
10
JW400
R515 10k
JW401
12.5
12.5
R411
220
R412
4.7k
10k
R421
0.022
C505
47k
R203
R602 47k
R603 47k
47k
R504
2SC3052EF-T1-LEF
POWER LED DRIVE-2
OVER DRIVE
PROTECTION
PROTECTION
Q508
50V
1
C506
100k
R606
2SC3052EF-T1-LEF
Q510
Q510
2SC3052EF
-T1-LEF
-T1-LEF
Q511
Q511
1
2
3
3P
CN501
VDD+
GND
VDD+
10EDB40-TB3
D606
10EDB40-TB3
D607
10EDB40-TB3
D608
10EDB40-TB3
D609
C507 4.7 50V
C508
10 50V
C509
4.7
50V
0
R214
50V
0.22
C204
R525 10k
R526 4.7k
R531 470
R527
4.7k
R528
47k
C510
47 50V
R532
220k
R529
100k
R522
10
1/4W
R523
10
1/4W
R524
10
1/4W
C503
330
25V
1.5k
R204
1k
R209
1k
R212
3.3k
R205
1.2k
R402
E
ET600
35V
470
C607
UDZW-TE17-5.1B
D508
UDZW
-TE17-5.1B
D509
R533 4.7
KTA1273-Y-AT
Q509
82k
R206
100k
R207
50V
0.047
C205
1
2
3
4
5
6
7
8
8P
CN600
AC-1
AC-1
GND
GND
AC-1
AC-1
AC-2
AC-2
1k
R607
A001
(CHASSIS)
(CHASSIS)
R514 22k
R517 82k
1
2
3
4
5
5P
CN201
VOL-IN
GND
VOL-OUT
POWER-LED
GND
R516 100
16V
100
C206
R213
2.2k
50V
1
C207
C605
100
16V
50V
470p
B
C400
MA111-TX
D400
MA111-TX
D502
D504
MA111-TX
D505
MA111-TX
D506
MA111-TX
D507
MA111-TX
1
2
2P
CN200
IN
IN-GND
R404
15k
15k
R405
R406 15k
R407
15k
R408
15k
R409
15k
R535
10k
MAIN BOARD
SLR-325MCT31
D300
20k
RV300
R300
1.5k
1
2
3
4
5
5P
CN300
VOL-IN
GND
VOL-OUT
POWER-LED
GND
VOL-LED BOARD
RELAY DRIVE
POWER LED
DRIVE-1
DRIVE-1
FUN SWITCH
FUN DRIVE
FUN PROTECTION
SUBWOOFER
LEVEL
MIN MAX
SUBWOOFER
ON/OFF
1
2
CN100
2P
IN
IN-GND
J100
INPUT BOARD
INPUT
7
7
SA-WG99
SA-WG99
1-3. PRINTED WIRING BOARDS — POWER SECTION —
•
:Uses unleaded solder.
•
See page 3 for Circuit Boards Location.
A
MAIN BOARD
CN600
(Page 5)
POWER SWITCH BOARD
SUBWOOFER
ON/OFF
A002
AC IN
FH704
FH705
F702
POWER TRANSFORMER
T700
JW705
JW702
FH703
FH702
FH701
FH700
CN703
CN702
CN700
R700
F701
F700
POWER BOARD
1-872-048-
12
(12)
S700
1-872-049-
(12)
C700
CN701
12
1
3
3
3
16
15
14
13
12
11
10
Not
replaceable
Built in transformer
replaceable
Built in transformer
9
*
*
8
5
6
7
1
2
3
4
5
6
7
8
1
A
B
C
D
E
F
G
H
I
8
8
SA-WG99
SA-WG99
1-4. SCHEMATIC DIAGRAM — POWER SECTION —
A
MAIN BOARD
CN600
(Page 6)
1
3
YEL
2P
CN700
PSW-1
PSW-2
7
13
14
10
12
11
15
3
5
8
9
16
4
6
T700
POWER TRANSFORMER
R700
1
3
WHT
AC IN
2P
CN703
LIVE
NEUTRAL
1
2
3
4
5
6
7
8
8P
CN702
AC-1
AC-1
GND
GND
AC-1
AC-1
AC-2
AC-2
FH705
Not replaceable
Built in
transformer
Built in
transformer
FH700
FH702
FH704
FH703
FH701
F700
F701
F702
JW702
POWER BOARD
S700
C700
250V
F
0 . 0 1
1
3
WHT
2P
CN701
PSW-1
PSW-2
POWER SWITCH BOARD
T6.3AL/ 250V
T6.3AL/ 250V
1
T4AL/250V
*
*
1/4W
SUBWOOFER
ON/OFF
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