Schematic Diagram — Main Section - Sony SA-WG99 Service Manual

SA-WG99
1-2. SCHEMATIC DIAGRAM — MAIN SECTION —
MAIN BOARD
R202
100k 11.5
2SC3052EF-T1-LEF
3.6
3.0
C200
10 50V
C202
0.22
CN200 R201 50V
2P 1k
R214
0
IN 1
IN-GND 2
R200 R203 R204
100k 47k 1.5k
R400
1k
INPUT BOARD
INPUT
CN100
2P
1 IN
2 IN-GND
J100
SA-WG99
• See page 4 for IC Block Diagram.
Q200
BUFFER R206 R208
82k 0
11.5
C203 Q201
2SC3052EF-T1-LEF
R205 0.22 2SC3052EF-T1-LEF
3.3k 5.9 BUFFER
50V
BUFFER
5.2
R210 R211
10k 10k
C204
0.22
50V
R207 R209
100k 1k
IC400
STK404-130S
1 2 3 4 5 6 7 8 9 10 11 12 13
-51.8 0 R410
0 0
11.5 11.5 0 -51 11.5 1.1 51.6
0.22
C401
R409
2.2
15k
50V
R408
15k
R407
R414 15k
56k
JW401
12.5
C408
3p 50V
CJ
R402
1.2k
C400
470p 50V
B
R403
C403
R401 100 1/4W
47 16V
56k
C404
100 100V
A001
(CHASSIS)
R213
2.2k
Q202
11.5
5.0
4.4
CN201
5P
1 VOL-IN
C207
1
C205
R212
50V
0.047 1k
2 GND
50V
3 VOL-OUT
4 POWER-LED
5 GND
IC400
POWER AMP
Q400
IC B/D
OVER DRIVE
PROTECTION 0.7
R411 R421
R606
220 10k
100k
Q400
C506
C407 2SA2026
1
2200p
0 50V
50V
0
D600
R412
4.7k 1N5402-F46
R413 0
10k
D601
1N5402-F46
C409
0.1
50V
Q600
C410
0.1 2SC2603TP-EF
50V
+12V REG
11.5 D602
17.8
1N5402-F46
D603
12.2
1N5402-F46
R607
1k
TEMPERATURE
PROTECTION
11.5 Q503
2SA1235TP-1EF
12.8
R510
47k
0
15.8
D504
0 MA111-TX
0
15.7
R507
R505 R506
100
100k 47k
0
R535
10k Q505
R509 RELAY DRIVE
2SC3052EF-T1-LEF
10k
Q504, Q505
RELAY OFF
6 6
VOL-LED BOARD
CN300
5P
RV300
SUBWOOFER
VOL-IN 1
20k
LEVEL
GND 2
MIN MAX
VOL-OUT 3
R300
1.5k D300
POWER-LED 4 SLR-325MCT31
GND 5 SUBWOOFER
ON/OFF
C600
0.1
100V
D606
10EDB40-TB3
C601
0.1 D607
100V
10EDB40-TB3
C607
D608
470
35V 10EDB40-TB3
D609
10EDB40-TB3
R513
1.8k 2W
Q509
KTA1273-Y-AT
FUN DRIVE
17.8 0.4
R522 R523 R524
10 10 10
1/4W 1/4W 1/4W
17.8
Q507
2SC3052EF-
T1-LEF D507
17.8
16
MA111-TX
R519
0.7 -3.0 22k 0
R527 R529
4.7k 100k
Q506 0
R518
2SC5625
C504
22k
2.2
50V
Q507
Q510
POWER LED
FUN SWITCH
DRIVE-1
CN600
8P
1 AC-1
2 AC-1
3 GND
POWER BOARD
4 GND
A
CN702
5 AC-1
(Page 8)
6 AC-1
7 AC-2
8 AC-2
E
CN500
2P
WHT SPEAKER
(CHASSIS)
ET600
1 SP-OUT
2 SP-GND
D508
UDZW-TE17-5.1B
CN501
3P
Q511
FAN
2SC3052EF 1 VDD+
-T1-LEF
2 GND
15.8
0
3 VDD+
R532
220k
Q511
FUN PROTECTION
No mark:Power on