Pa-Board (1 Of 3) Schematic Diagram - Panasonic TH-37PD25U-P Service Manual

15.7. PA-Board (1 of 3) Schematic Diagram

TO
P-BOARD NR10V
(P5) PA5
12.0
1
12V
12.0
2
12V
5.0
3
5V
5.0
4
A STB5V
0 C2381
5
GND 50V
10u
0
6
GND
12.0
7
+12Vs
12.0
8
+12Vs
JS2107
0
9
GNDs
0 JS2106
10
GNDs
AVR
15.0
11
AUDIOSOS
IC2304
AN7709SP-E1
JS2303 13.9
1
IN OUT
C2413
50V COMMON
47u
2
0
R2406
B
22
SCL1
SDA1
R2405
22
C
TO DG6
DG-BOARD
PA6
(DG6) R2401
4.0 5.6k
1 L-IN
L_IN
C2401
0
2 R2403
GND 50V
22k
1800p
3.9
3
R_IN
0
4
GND
R2402
0 5.6k
5 R-IN
NC
0 C2402
6
R2404
GND 50V
22k
1800p
4.5
7
NC
0
8
GND
0
9
NC
0
10
NC
0
11
(AMUTE)
0
12
GND
3.9
13
SCL2
3.5
14
SDA2
0
15
D GND
0
16 MUTE CCT.
SP_MUTE
5.0
17
STB5V
3.2
18
RESET
0
19
POFF_DEF
20 0
MAIN_DEF
R2372
4.8
22k
Q2303
3.2 2SD0601A0L
RESET
2.6
R2373
5.6k
0.6
R2374
100k
POFF-DEF
JS2304
MAIN_DEF
E
TH-37/42PD25U/P
PA-Board (1 of 3) Schematic Diagram
1 2
L2306
9.0 ELJPA100KF
3
C2414
C2408
25V R2408
47u 16V
39k JS2430
47u
0
+9V
C0ABBA000073
C2428 C2429
50V
16V
100u 0.01u R2415
0
R2419 +9V
SCL1
0
C2430 C2431
50V
SDA1 R2423 16V
0.01u
0 100u
IC2401
SOUND CTRL
C1BB00000800
R2420
C2403
0
50V
R2427
4.7u
100
NP C2412 R2416
R2409 C2415
0
16V 16V
4.7k
0.1u
0.1u R2412
0
C2407
C2404 50V
5600p
50V R2428
4.7u
100
NP
MUTE SW
STB5V +9V
Q2311
Q2312
2SD0601A0L
R2389
2SD0601A0L
560
D2314 D2315
MA2J11100L MA2J11100L
D2312
MA3X152K0L
R2385
820 R2390
1k
R2494
820
1/2W
0
Q2304 C2382
R2371
16V
2SD0601A0L 180k
100u
0
Q2310
R2387 R2386
2SD0601A0L
560 1k
8.9
R2377
470
Q2308
D2311
C2352
R2368
2SD0601A0L MA3X152K0L 16V
0 47k
100u
0
R2378
100k
3
C2331
25V C1BA00000309
0.1u
C2303 C2301
16V 16V
R2303
1u
100 1u
0
28 HP IN
+9V
R2301
C2305 0
100k 27 H/P
35V STB SW
47u
11.6
26 LIPPLE
FILTER
3.2
25
AMP
STB SW
0 SW REG.PART
24
NC
HLS
IC2402 0
C2307 23
NC
50V
22u
2.7
22
ON TIME
0
21
NC
L
0
20
PRE GND
C2309 0
R2307 19
50V NC
1k
2.2u
3.3
18
NP IN
3.3
R2305 BEEP
17
2.2k
C2311 C2313 0
16
50V POWER GND
50V
6800p 2.2u
0
15
POWER GND
VCC
L
IC2302
C2332
25V
C1BA00000309
0.1u
C2304
R2304 16V
R 1u
100 0
28 HP IN
GND
R2302 C2302 0
C2306 27
100k H/P
35V 16V
STB SW
1u
47u 11.6
26
LIPPLE
FILTER
3.2
25 AMP
STB SW
SW REG.PART
0
24 NC
HLS
C2308 0
23
50V NC
22u
2.7
22
ON TIME
0
21
NC
0
R 20
PRE GND
C2310 0
R2308 19
50V NC
1k
2.2u
3.3
18 IN
NP
3.3 BEEP
17
R2306
2.2k
C2312 C2314 0
16
50V 50V POWER GND
6800p 2.2u
0
15
POWER GND
R2393 R2396
0 0
C2339
R2394
R2391
50V
6.8k 6.8k
10u
3.2
C2342
R2392 R2395
0 50V
27k 27k
10u
0
R2347
R2348
10k 47k
3.2
R2398
1k 0
Q2309
0
2SD0601A0L
Q2305
3.2
R2375
2SD0601A0L
10k
0
Q2306 !
2SD0601A0L
0
R2376 0
0.6
22k
0 R2346
47k
4 5
77
+12Vs
R2339
3.9k
IC2301
C2338
16V
100u
+
C2315
0 50V
HP OUT 1
0.047u
6dB 0.3 R2309
LIPPLE 2
C2317
FILTER 10
35V
1/2W R2331 L2303
0
3 220u
L NC 0 EXCELDR35V
0
4
SW GND R2333 12.6
3.5
0 0 Q2301
SW 5
SW
B 2SD1266AQ0LB
3.3
3.5
SW 6
E C2333
L2301
3.4 25V
SW 7 220u D2301
470u
OUT B0JCME000025
12.6 C2321
Vcc(SW) 8
50V
2.2u
12.6
9
Vcc
12.5 C2325
10 R2311
Thermal 25V 2.2
C2323
Pad 470u 1/2W
3.4
11 50V
1000p
1.7
OUT- 12
1.7
OUT+ 13
0 C2327 C2329
14
POWER GND 50V
50V
0.1u
0.1u
R2313 R2315
2.2 2.2
1/2W 1/2W
C2337
16V
100u
+
C2316
0
HP OUT 1 50V
0.047u
6dB 0.3
2 R2310
LIPPLE C2318
10
FILTER
35V 1/2W L2304
0 R2332
3 220u
NC 0 EXCELDR35V
R
0
4
SW GND R2334
Q2302
3.5 0
SW 5
SW
2SD1266AQ0LB
B
3.4
SW 6
E C2334
L2302
3.4 25V
SW 7 D2302
220u
470u
OUT B0JCME000025
12.6
Vcc(SW) 8 C2322
50V
12.6 2.2u
9
Vcc
12.5 C2326
10 R2312
25V
Thermal 1/2W
C2324
Pad 470u 2.2
3.4 50V
11
1000p
1.7
OUT- 12
1.7
OUT+ 13
0 C2328
14 C2330
POWER GND 50V 50V
0.1u 0.1u
R2314 R2316
2.2
2.2
1/2W 1/2W
R2397
0
R2399
0
PA-BOARD TXNPA1URSU (1/3)
TH-37/42PD25U/P
PA-Board (1 of 3) Schematic Diagram
6 7
TH-37PD25U-P / TH-42PD25U-P
1
2
1.3
HP_R
6
0
GND
5
1.3
HP_L
4
0
GND
3
0
HP_SUB
2
0
GND
1
TO
PA9
K-BOARD
(K9)
TO SPEAKER
(SP-R & SP-L)
PA3
1.7 1
SP_R+
1.7 2
SP_R-
1.7 3 SP_L+
1.7 4
SP_L-
8