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+9V
4
C2436
50V
560p
200Hz LPF
L
C2402
0ABBA000073
R
GND
R2430
C2432
22k
50V
560p
R2396
R2393
0
0
C2339
MUTE SW
R2391
50V
6.8k
10u
.2
Q2311
C2342
R2395
R2392
50V
2SD0601A0L
27k
27k
10u
0
3.2
R2375
10k
0
Q2309
0
Q2305
R2376
0
2SD0601A0L
2SD0601A0L
22k
Q2306
2SD0601A0L
C2442
50V
0.012u
R2442
22k
L
C2403
400Hz HPF
ABBA000073
R
GND
R2439
22k
C2441
50V
0.012u
5
76
C2331
100k
C2305
35V
47u
C2307
50V
22u
L
C2309
50V
R2307
2.2u
2k
NP
C2311
C2313
R2305
50V
16V
2.2k
2.2u
0.047u
C2332
100k
C2306
35V
47u
C2308
50V
22u
R
C2310
50V
R2308
2.2u
2k
NP
C2312
C2314
R2306
16V
50V
2.2k
0.047u
2.2u
R2321
R2348
100k
10k
R2329
20k
C2345
35V
47u
R2347
47k
0.6
C2347
R2346
0
50V
47k
22u
L
C2349
50V
R2317
2.2u
270
NP
R2319
C2383
C2385
16V
50V
2.2k
1u
2.2u
R2322
100k
R2330
20k
C2346
35V
47u
C2348
50V
22u
R
C2355
50V
R2318
2.2u
270
NP
C2386
C2384
R2320
50V
16V
2.2k
2.2u
1u
IC2301
WOOFER AMP-L
C1BA00000278
0
0
HP IN
HP OUT
1
28
0
6dB
0.3
2
H/P
LIPPLE
27
STB SW
FILTER
C2317
11.6
0
35V
3
LIPPLE
L
26
NC
FILTER
220u
3.2
0
4
AMP
25
SW GND
STB SW
R2333
0
0
SW REG.PART
0
5
SW
24
NC
SW
B
HLS
0
3.5
6
SW
23
NC
E
2.7
3.4
SW
7
22
ON TIME
OUT
0
12.6
Vcc(SW)
8
21
NC
0
12.6
9
20
PRE GND
Vcc
C2323
0
12.5
50V
1000p
10
19
NC
Thermal
3.3
3.4
Pad
11
IN
18
3.3
1.7
BEEP
OUT-
12
17
0
1.7
OUT+
13
16
POWER GND
0
0
C2327
14
15
50V
POWER GND
POWER GND
0.1u
R2313
2.2
IC2302
WOOFER AMP-R
C1BA00000278
0
0
HP IN
HP OUT
1
28
0
6dB
0.3
2
H/P
LIPPLE
27
STB SW
FILTER
C2318
11.6
0
35V
3
LIPPLE
26
R
NC
220u
FILTER
3.2
0
4
AMP
25
SW GND
STB SW
R2334
0
3.5
0
SW REG.PART
SW
5
24
NC
SW
B
HLS
0
3.4
SW
6
23
NC
E
2.7
3.4
SW
7
22
ON TIME
OUT
0
12.6
Vcc(SW)
8
21
NC
0
12.6
9
20
PRE GND
Vcc
C2324
0
12.5
50V
1000p
10
19
NC
Thermal
3.3
3.4
Pad
11
IN
18
3.3
1.8
BEEP
OUT-
12
17
0
1.8
OUT+
13
16
POWER GND
0
0
C2328
14
15
POWER GND
POWER GND
50V
0.1u
R2314
2.2
IC2305
SQUAWKER AMP-L
C1BA00000278
0
0
HP IN
HP OUT
1
28
0
6dB
0.3
2
H/P
LIPPLE
27
STB SW
FILTER
C2387
14.6
0
35V
3
LIPPLE
26
L
NC
220u
FILTER
3.2
0
4
AMP
25
SW GND
STB SW
R2337
27
0
SW REG.PART
3.5
SW
5
24
NC
SW
B
HLS
0
3.4
SW
6
23
NC
E
2.7
3.4
SW
7
22
ON TIME
OUT
0
15.7
Vcc(SW)
8
21
NC
0
15.7
9
20
PRE GND
Vcc
C2395
0
15.6
50V
1000p
10
19
NC
Thermal
Pad
3.3
3.4
11
IN
18
3.3
1.7
BEEP
OUT-
12
17
0
1.7
OUT+
13
16
POWER GND
0
0
C2397
14
15
50V
POWER GND
POWER GND
0.1u
R2325
2.2
IC2306
SQUAWKER AMP-R
C1BA00000278
0
0
HP IN
HP OUT
1
28
0
6dB
0.4
2
H/P
LIPPLE
27
STB SW
FILTER
C2388
14.6
0
35V
R
3
LIPPLE
26
NC
220u
FILTER
3.2
0
4
AMP
25
SW GND
STB SW
R2338
0
SW REG.PART
3.5
27
SW
5
24
NC
SW
B
HLS
0
3.4
SW
6
23
NC
E
2.7
3.5
SW
7
22
ON TIME
OUT
0
15.7
Vcc(SW)
8
21
NC
0
15.7
9
PRE GND
20
Vcc
C2396
0
15.6
50V
1000p
10
19
NC
Thermal
Pad
3.3
3.4
11
IN
18
3.3
1.8
BEEP
OUT-
12
17
0
1.7
OUT+
13
16
POWER GND
0
0
C2398
14
15
POWER GND
POWER GND
50V
0.1u
R2326
2.2
6
+12Vs
R2339
3.9k
Q2301
L2303
R2331
EXCELDR35V
0
2SD1266AQ0LB
12.6
3.5
D2301
B0JCME000025
3.3
L2301
R2311
220uH
C2321
2.2
50V
2.2u
C2333
C2325
25V
25V
470u
470u
TO WOOFER
(W-R & W-L)
C2329
50V
0.1u
R2315
2.2
1.7
1.7
0
1.7
1.7
Q2302
L2304
R2332
EXCELDR35V
0
2SD1266AQ0LB
12.6
3.5
D2302
B0JCME000025
3.4
L2302
R2312
220uH
C2322
2.2
50V
2.2u
C2334
C2326
25V
25V
470u
470u
C2330
50V
0.1u
R2316
2.2
D2305
Q2313
R2335
L2309
B0HAPM000037
ERD25V0T
0
B1BBCF000013
15.7
3.5
R2340
D2303
3.9k
B0JCME000025
3.4
L2307
R2323
220uH
C2391
2.2
50V
2.2u
C2389
C2393
25V
25V
470u
470u
C2399
50V
TO SQUAWKER
0.1u
(SP-R & SP-L)
R2327
2.2
1.7
1.7
1.7
1.7
Q2314
L2310
R2336
ERD25V0T
B1BBCF000013
0
15.7
3.5
D2304
B0JCME000025
3.4
L2308
R2324
220uH
C2392
2.2
50V
2.2u
C2390
C2394
25V
25V
470u
470u
TH-37PA30E/TH-42PA30E
C2400
50V
0.1u
PA-Board
(1 of 2)
R2328
2.2
Schematic Diagram
7
1
2
PA1
1
W_R+
2
W_R-
3
NC
4
W_L+
5
W_L-
TO
P-BOARD
(P7)
PA7
15.0
1
+15Vs
15.0
2
+15Vs
0
3
GNDs
0
4
GNDs
PA3
1
SP_R+
2
SP_R-
3
SP_L+
4
SP_L-
8
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