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14.13. PA-Board (1 of 3) Schematic Diagram
TO
P-BOARD
PA-BOARD TXNPA1QKSU (1/3)
PA5
!
(P5)
1
12V
2
12V
3
A
5V
4
STB5V
5
GND
6
GND
C2381
50V
7
10u
+12Vs
8
+12Vs
JS2107
9
GNDs
JS2106
10
GNDs
11
DR15V
B
SCL1
SDA1
TO
DG-BOARD
PA6
(DG6)
1
C
L_IN
2
GND
R_IN
3
4
GND
5
NC
6
GND
7
SUBMONO
8
GND
9
NC
10
SUBMUTE
11
(AMUTE)
12
GND
13
SCL1
14
SDA1
15
GND
16
SP_MUTE
17
STB5V
D
18
RESET
19
POFF_DEF
20
MAIN_DEF
E
F
TH-50PX20U-P
PA-BOARD (1 of 3) Schematic Diagram
1
2
IC2304
AVR 9V
AN7709SP-E1
+9V
NR14V
JS2303
OUT 3
1
IN
L2306
C2413
C2414
ELJPA100KF
50V
COMMON
16V
47u
2
47u
IC2102
AVR 12V
AN7712SP-E1
OUT 3
+12V
1
NR14V
IN
C2112
C2113
50V
COMMON
16V
47u
2
47u
+9V
R2406
22
SCL1
SDA1
R2405
22
C2429
C2428
50V
16V
100u
0.01u
R2401
R2427
5.6k
L-IN
NP
C2401
C2403
R2403
50V
22k
50V
1800p
4.7u
R2402
5.6k
R-IN
NP
C2404
R2404
C2402
50V
22k
50V
4.7u
1800p
+9V
MUTE CCT.
Q2307
2SA207700L
STB5V
R2379
R2380
47k
22k
Q2303
R2372
2SD0601A0L
22k
RESET
R2494
R2382
820
1/2W
47k
R2373
5.6k
Q2304
C2382
Q2308
R2383
R2371
16V
2SD0601A0L
2SD0601A0L
180k
100k
R2374
100u
100k
R2377
470
D2311
MA3X152K0L
R2378
100k
POFF-DEF
JS2304
MAIN_DEF
3
4
R2408
C2408
33k
50V
R2414
R2418
47k
R2422
4.7u
47k
C2420
39k
50V
560p
C2418
C2416
50V
C2422
560p
50V
50V
C2426
560p
C2424
560p
R2415
50V
50V
100k
1800p
1800p
R2419
R2423
100k
47k
IC2401
SOUND CTRL
C1BB00000800
100
C2412
50V
R2409
0.01u
R2416
R2420
4.7k
R2412
100k
47k
100k
C2407
C2423
C2425
C2427
50V
C2419
5600p
25V
50V
50V
25V
0.033u
1800p
1800p
0.033u
C2417
C2421
R2428
25V
25V
R2421
100
R2417
0.033u
39k
0.033u
56k
R2413
56k
Q2352
2SC584500L
=
+12V
L2350
0
R2353
10k
C2354
25V
47u
D2350
D2352
MA2J11100L
MA2J11100L
R2358
MONOMUTE
10
+
D2351
C2358
R2384
C2353
R2363
MA2J11100L
R2357
50V
100k
1/2W
16V
0.01u
10
Q2351
33
220u
R2350
68k
2SA207700L
C2350
C2357
50V
50V
R2364
R2367
22u
Q2350
22u
330
5.6k
2SC584500L
+
+
IN
R2351
R2356
10k
100k
R2354
100
Q2315
2SC584500L
R2362
Q2355
100k
C2356
R2355
16V
Q2354
2SC584500L
1.8k
100u
2SA207700L
Q2353
Q2356
2SC584500L
2SC584500L
R2352
1k
MONOMUTE
R2359
R2361
100
C2351
1M
50V
22u
R2360
47k
5
6
77
200Hz LPF
L2430
0
R2435
22k
+9V
C2436
C2431
16V
C2430
50V
0.027u
16V
0.01u
100u
VCC
L
IC2402
C0ABBA000073
R
GND
C2432
16V
0.027u
400Hz HPF
C2445
50V
0.012u
C2440
C2442
R2444
R2442
50V
50V
1k
22k
0.01u
0.012u
C2443
R2445
16V
1k
100u
VCC
L
IC2403
C0ABBA000073
R
GND
C2441
50V
0.012u
C2444
50V
0.012u
R2366
1k
TH-50PX20U-P PA-BOARD (1 of 3) Schematic Diagram
7
8
TH-50PX20U-P
1
2
3
4
5
6
7
8
9
10
11
12
13
9
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