Pa-Board (3 Of 3) Schematic Diagram - Panasonic TH-50PX60U Service Manual

14.9. PA-Board (3 of 3) Schematic Diagram

MAIN9V
R2341
0
MAIN_9V
R2375
100
C2303
16V
100u
31
32
33
R2365
100
PA-BOARD TXNPA1BJTUJ (3/3)
34
15V
35
TH-50PX60U
PA-Board (3 of 3) Schematic Diagram
16 17
R2372
10k
C2314
16V R2403
1u 4.7k
Q2306
R2312
C2380
10k 2SA207700L
50V
Q2302
0.01u R2402
R2310
0 330 B1ABCF000138
R2401
R2384
330
1.15k
VCC
R
IC2304 R2383
R2421
3.3k
2k
C0ABBA000168
C2417
R2422
6.3V
787
OP AMP 10u
L
GND C2401
10V
R2406
1u
4.7k
Q2307
R2311
0 2SA207700L
R2405 Q2303
330
R2404 R2387 B1ABCF000138
R2373 R2376
330 1.15k
10k 10k
R2388
C2382 3.3k
16V
1u
R2409
2k
R2410 C2402
VCC 6.3V
787
10u
R
IC2306
C2403
50V R2407
C0ABBA000168
0.01u 1.24k
OP AMP
L
R2408
1.18k
GND
18 19
79
SOUND_SOS
Q2300
R2360
MAIN9V 2SA207700L 10k
R2359 C2374
R2361
10V
2.2k 5.6k
1u
R2366 D2309
Q2301 R2363
4.7k MA2J11100L
470
B1ABCF000138
C2373
50V
0.1u
R2364
47k
R2369
18k
C2336
L2302 50V
G0C330MA0049
0.47u
C2334
25V
0.1u
R2349
L2303 C2335
100
G0C330MA0049 25V
0.1u
R2332
C2337 C2338
C2393 C2342
C2341 10k 25V 25V
16V 25V 25V 0.22u 0.22u
1u 10u 1u
C2317
1 36
C2385
10V 1u
10V 2 35
RINN PVCCR C2330
1u
W-R 25V 1u
3 34
RINP W_R PVCCR
+ C2333
4 AVCC 33 25V 470u
AGND PGNDR
W-L
C2320 5 32
C2328
LINP PGNDR
10V 1u 25V 1u
6 31
LINN VCLAMPR
7 30
NC VCLAMPL
C2329
R2323 0 8 29
1u
GAIN0 PGNDL 25V
R2324 0 9 28
GAIN1 NC PGNDL C2332
10 NC 27 25V 470u
MSTR/NSLV PVCCL
W_L +
C2394 C2331
11 26
16V SYNC PVCCL 25V 1u
1u 12 25
IC2302
C2387
10V
C1AB00002451
1u
SPEAKER AMP
C2323 C2324
25V 25V
R2325
0.22u
0.22u
10k R2329
C2327
100k
L2300
50V
G0C330MA0049
0.47u
C2321
C2325
50V
25V
C2322
0.01u
0.1u
10V
1u
L2301 C2326
G0C330MA0049 25V
0.1u
ZA5600
K4CZ01000027
ZA5601
K4CZ01000027
20 21
TO
P-BOARD
PA5
(P5)
15.0 1 +15V
15.0 +15V
2
0
3
GND
15.0
4
15V
0 5
R2357 GND
L2308
0
+15V 3.9u 15.0 6
+15V
15.0 7
R2368
+15V
0
15.0
8
+15V
C2301 0
9
25V
GNDs
470u
0
10
GNDs
0 11
GNDs
R2397
0
R2398
0
TO WOOFER/SPEAKER
(W-R & W-L)
PA2
5.3 1
W_R+
5.3
2
W_R-
0
3
NC
5.3
4
W_L-
5.3 5
W_L+
ZA2300
K4CZ01000027
ZA2301
K4CZ01000027
15V
TH-50PX60U
PA-Board (3 of 3) Schematic Diagram
22 23
TH-50PX60U