+
+
+
+
+
+
+
+
+
+
+
+
+
Thermal
Pad
+
+
+
+
+
+
+
Thermal
Pad
+
+
+
+
+
MAIN9V
SUB9V2
SUB5V
+9V
+12Vs
D2301
B0JCME000025
C2330
50V
0.1u
R2406
560
D2302
B0JCME000025
R2307
270
D7507
MA2Q73700L
1%
R7503
806
Q2311
2SD0601A0L
L2302
220uH
*R2399
0
R2386
1k
R7543
1k
C2305
35V 47u
D7541
MA2J11100L
*L2304
B0JAME000062
L7507
G0C101K00023
C2323
50V
1000p
Q7504
UNR221400L
*C2332
25V
0.1u
*C2317
35V
220u
Q7543
2SB0709A0L
R2390
1k
*JS7525
1%
R7507
806
R2306
1.2k
R2387
560
D7538
MA2J11100L
C2306
35V
47u
Q2310
2SD0601A0L
R7506
2.2k
D7537
MA2J11100L
C7512
25V
470u
*R2301
100k
C2334
25V
470u
1
2
3
4
5
6
R2401
10k
C2325
25V
470u
R2402
10k
D7545
MA2J11100L
C2309
16V
2.2u
C0DAAZG00006
1
V IN
2
SW out
3
GND
4
VO S
5
ON/OFF
C2321
50V
2.2u
Q2309
2SD0601A0L
Q7542
2SB0709A0L
R7542
470
C2324
50V
1000p
1/2W
R2316
2.2
D7508
MAZ20680A0LS
C2327
50V
0.1u
C2329
50V
0.1u
C2422
16V
4.7u
R7549
100k
C7542
16V
0.1u
R2308
270
Q2312
2SD0601A0L
L7505
100u
*C2302
16V 1u
C7532
16V
330u
1/2W
R2311
2.2
C2311
50V
6800p
D7547
MA2J11100L
C7541
16V
0.1u
L7508
100u
TPB7508
Q2302
2SD1266AQ0LB
*C2303
16V
1u
*C2337
16V
100u
C7509
50V
10u
D7542
MA2J11100L
C2352
16V
100u
1%
R7508
1.87k
C7513
50V
0.01u
1/2W
*R2310
10
Q7544
2SD0601A0L
R7544
2.2k
1
2
3
4
D7504
MA2Q73700L
R2392
22k
R7525
4.7k
R7532
470
C7536
16V
0.47u
*C2338
16V
100u
R7548
2.2k
C2310
16V
2.2u
C7543
16V
0.1u
C2308
50V
4.7u
*R2394
10k
1/2W
*R2309
10
*L2303
B0JAME000062
*C2316
50V
0.047u
*R7547
1k
*R2395
22k
Q2402
2SD0601A0L
R7536
470
*C7531
16V
470u
*JS7528
Q2403
2SD0601A0L
C1BA00000309
1
2
3
4
5
6
7
8
9
10
11
12
13
14
15
16
17
18
19
20
21
22
23
24
25
26
27
28
R2318
0
*R2397
0
1/2W
R2315
2.2
R7505
22k
*R2303
100
R7537
10k
*R2302
100k
1%
R7545
2.2k
*C2301
16V
1u
C2333
25V
470u
C2401
50V
0.01u
C7570
50V
0.01u
R7539
2.2k
C7511
25V
470u
C7537
16V
0.47u
C7506
25V
470u
R2391
10k
L2301
220uH
1/2W
R2313
2.2
*C2331
25V
0.1u
*R2396
0
D7540
MAZ30390HL
*R7533
470
R7540
4.7k
R7588
0
C2314
50V
2.2u
C2312
50V
6800p
D7544
MA2J11100L
1/2W
R2314
2.2
1%
R7546
2.2k
*C2315
50V
0.047u
Q7501
B1DHDD000013
R7535
220
C2339
50V
10u
C2307
50V
4.7u
*D7539
MAZ30620HL
R2405
560
D7549
MA2J11100L
R2398
1k
L7504
G0C101K00023
C2322
50V
2.2u
*C2318
35V
220u
R2320 0
1
2
3
4
R2389
560
R2319
0
L7506
33u
R2317
0
C2417
16V
4.7u
C7544
16V
0.1u
1%
R7504
3.92k
D7546
MA3X152E0L
R7526
4.7k
C1BA00000309
1
2
3
4
5
6
7
8
9
10
11
12
13
14
15
16
17
18
19
20
21
22
23
24
25
26
27
28
*C2344
16V
220u
R2404
10k
C2342
50V
10u
1%
*R7559
8.2k
R2393
0
R7527
4.7k
Q2301
2SD1266AQ0LB
*R2304
100
L7509
33u
Q7541
2SB0709A0L
R7538
10k
TPB7502
C0DAAZG00006
1
V IN
2
SW out
3
GND
4
VO S
5
ON/OFF
D7505
MAZ21200A0LS
*C2304
16V
1u
Q7502
UNR221400L
TPB7503
R2305
1.2k
C7505
25V
470u
1/2W
R2312
2.2
R2403
10k
*R7529
0
C2313
50V
2.2u
R7541
2.2k
C2328
50V
0.1u
C2326
25V
470u
*A1-A1
TWE3201110YY
HP-SUB
GNDs
+15Vs
R
L
GND
GND
HP-R
GND
HP-L
SP_L-
SP-L+
SP_R-
SP_R+
AMP
FILTER
LIPPLE
STB SW
H/P
HP IN
STB SW
SW REG.PART
POWER GND
POWER GND
BEEP
IN
HLS
NC
PRE GND
NC
ON TIME
NC
NC
NC
FILTER
LIPPLE
HP OUT
6dB
SW GND
OUT-
OUT+
POWER GND
SW
Vcc
Vcc(SW)
OUT
SW
E
SW
B
SW
6dB
HP OUT
LIPPLE
FILTER
NC
HP IN
SW REG.PART
NC
SW GND
SW
B
SW
E
SW
OUT
Vcc(SW)
Vcc
NC
ON TIME
NC
PRE GND
NC
HLS
SW
H/P
STB SW
LIPPLE
FILTER
STB SW
AMP
IN
POWER GND
BEEP
OUT+
OUT-
POWER GND
POWER GND
SI-8015JF
SI-8015JF
+15Vs
GNDs
L2303
L2304
11
12
14
13
9
10
8
15
SUB 5V
SUB 9.2V
SP AMP
SP AMP
SP ON/OFF
SP ON/OFF
TO
SPEAKER
(SP-R & SP-L)
TV ON/OFF
TV ON/OFF
ERROR DET
ERROR DET
ERROR DET
ERROR DET
SP MUTE
AUDIO MUTE
AUDIO MUTE
L AMP
R AMP
ERROR DET
11
12
17
18
16
19
14
15
13
20
21
PA-BOARD TXNPA1QCSU(2/3)
TH-42PA20U
PA-Board(2of3)Schematic Diagram
TH-42PA20U
PA-Board(2of3)Schematic Diagram
Summary of Contents for TH-42PA25U/P
Page 11: ...4 TH 42PA20U A...
Page 28: ...6 2 Lead of Wiring 2 9...
Page 29: ...6 3 Lead of Wiring 3 10...
Page 30: ...6 4 Lead of Wiring 4 11...
Page 55: ...16 Mechanical Replacement Parts List 36...
Page 61: ...C2342 ECA1HHG100 E 10UF 50V 1 42...
Page 78: ...R416 ERJ6ENF2551 M2 55KOHM 1 10W 1 59...
Page 82: ...R2453 ERJ6GEYJ103 M 10KOHM J 1 10W 1 63...
Page 95: ...76...
Page 225: ...1 Applicable signals 4 TH 42PA20U P...
Page 230: ...6 Location of Lead Wiring 6 1 Lead of Wiring 1 9 TH 42PA20U P...
Page 231: ...6 2 Lead of Wiring 2 10 TH 42PA20U P...
Page 232: ...6 3 Lead of Wiring 3 11 TH 42PA20U P...
Page 233: ...6 4 Lead of Wiring 4 6 5 Lead of Wiring 5 12 TH 42PA20U P...
Page 242: ...9 4 IIC mode structure following items value is sample data 21 TH 42PA20U P...
Page 253: ...32 TH 42PA20U P...