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PA-BOARD TXNPA1QCSE(2/3)
!
1
2
3
+9V
C2339
C2401
50V
50V
10u
Q2402
0.01u
2SD0601A0L
R2401
10k
L AMP
R2405
C2417
R2403
560
16V
10k
4.7u
R2307
270
4
R2305
1.2k
5
R2402
10k
Q2403
C2422
R AMP
16V
2SD0601A0L
4.7u
R2406
560
R2404
R2308
10k
270
R2306
1.2k
R2393
0
AUDIO MUTE
Q2311
R2391
2SD0601A0L
10k
C2342
50V
10u
R2390
1k
R2392
22k
R2398
1k
Q2309
2SD0601A0L
SP MUTE
6
7
8
9
TH-42PA20B/E
PA-Board(2of3)Schematic Diagram
8
9
JS7528
JS7525
IC2301
C1BA00000309
SP AMP
HP IN
HP OUT
28
1
6dB
27
H/P
LIPPLE
2
STB SW
FILTER
C2305
26
LIPPLE
3
L
NC
FILTER
SP ON/OFF
35V 47u
25
AMP
4
SW GND
STB SW
R2319
SW REG.PART
24
SW
5
0
Q2301
R2317
NC
L2303
SW
B
0
HLS
ERD25V0T
DRIVE
2SD1266AQ0LB
SW
23
NC
6
E
C2333
L2301
SW
25V
22
ON TIME
7
220uH
OUT
470u
C2307
Vcc(SW)
C2321
21
8
D2301
NC
50V
50V
B0JCME000025
4.7u
2.2u
20
9
PRE GND
Vcc
C2309
C2325
R2311
19
10
16V
NC
25V
2.2
2.2u
Thermal
470u
1/2W
Pad
18
IN
11
BEEP
OUT-
C2323
17
12
50V
C2311
OUT+
1000p
16
13
POWER GND
50V
C2327
C2329
6800p
15
14
POWER GND
POWER GND
50V
50V
C2313
0.1u
0.1u
50V
2.2u
R2313
R2315
2.2
2.2
1/2W
1/2W
IC2302
C1BA00000309
SP AMP
HP IN
HP OUT
28
1
C2306
6dB
27
H/P
LIPPLE
2
35V
STB SW
FILTER
47u
26
LIPPLE
R
3
NC
FILTER
SP ON/OFF
25
AMP
4
SW GND
STB SW
R2320
SW REG.PART
0
24
SW
5
Q2302
R2318
L2304
NC
SW
B
0
ERD25V0T
HLS
DRIVE
2SD1266AQ0LB
SW
23
NC
6
E
L2302
C2334
SW
25V
22
ON TIME
7
220uH
OUT
470u
C2308
C2322
21
8
50V
NC
Vcc(SW)
D2302
50V
4.7u
2.2u
B0JCME000025
20
9
PRE GND
Vcc
C2326
C2310
19
10
R2312
NC
25V
16V
2.2
Thermal
2.2u
470u
Pad
1/2W
18
IN
11
BEEP
OUT-
C2324
17
12
C2312
50V
50V
OUT+
1000p
16
13
POWER GND
6800p
C2328
C2330
15
14
POWER GND
POWER GND
50V
50V
C2314
0.1u
0.1u
50V
2.2u
R2314
R2316
2.2
2.2
1/2W
1/2W
10
11
+12Vs
TO
P-BOARD
PA7
(P7)
1
+15Vs
2
+15Vs
3
GNDs
4
GNDs
L7504
G0C101K00023
TO
SPEAKER
R7588
PA3
(SP-R & SP-L)
0
1
SP_R+
2
SP_R-
L7507
G0C101K00023
3
SP-L+
4
SP_L-
Q7543
Q7541
2SB0709A0L
2SB0709A0L
ERROR DET
ERROR DET
R7541
R7539
2.2k
2.2k
R7525
4.7k
MA2J11100L
R7540
4.7k
C7541
16V
MA2J11100L
0.1u
MA2J11100L
Q7504
MA2J11100L
UNR221400L
ERROR DET
Q7544
2SD0601A0L
ERROR DET
12
IC7502
C0DAAZG00006
SI-8015JF
SUB 9.2V
C7536
16V
0.47u
R7503
Q7501
806
1%
R7504
3.92k
1%
B1DHDD000013
TPB7502
C7505
L7505
100u
SUB9V2
25V
470u
L7506
C7506
C7570
33u
C7509
25V
50V
50V
470u
0.01u
10u
R7505
D7504
22k
D7505
MA2Q73700L
MAZ21200A0LS
R7506
TV ON/OFF
2.2k
Q7502
TV ON/OFF
UNR221400L
IC7503
C0DAAZG00006
SI-8015JF
SUB 5V
C7537
16V
R7507
0.47u
806
1%
R7508
1.87k
1%
TPB7503
C7511
L7508
100u
25V
SUB5V
470u
L7509
C7512
C7513
33u
25V
50V
470u
0.01u
R7517
220
D7507
D7508
Q7505
MA2Q73700L
MAZ20680A0LS
C7572
R7515
50V
22k
UNR221400L
10u
TV ON/OFF
Q7542
ERROR DET
R7543
2SB0709A0L
1k
R7545
R7547
C7542
R7544
2.2k
220
16V
2.2k
1%
0.1u
R7546
D7541
D7549
R7532
2.2k
470
1%
MA2J11100L
C7543
D7542
R7533
D7547
16V
1k
MA2J11100L
0.1u
D7548
D7544
R7535
MA2J11100L
220
D7545
R7536
470
D7539
MAZ30470HL
MA2J11100L
R7537
D7537
10k
MA2J11100L
R7538
R7526
D7538
10k
4.7k
TH-42PA20B/E PA-Board(2of3)Schematic Diagram
13
14
11
12
TPB7508
MAIN9V
13
14
Q7503
TPB7509
B1DHDD000013
C7532
MAIN5V
16V
330u
C7515
16V
470u
TV ON/OFF
R7548
C7544
2.2k
16V
0.1u
R7559
15
470
1%
16
R7542
470
R7550
220
17
18
19
20
D7540
MAZ30390HL
D7546
MA3X152E0L
21
R7549
100k
R7527
4.7k
22
15
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