Read Sony MHC-GX99 / SA-WG99 Service Manual online
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
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