Panasonic SA-BT235P Service Manual page 115

SCHEMATIC DIAGRAM - 28
I
C
D-AMP CIRCUIT
: +B SIGNAL LINE
J
K5401
0
K
L
M
D5407
B0ACCK000005
C5425 R5436
1 22K
N
Q5413
B1ADBL000010
R5439
DC DETECT
220K
R5438
220K
Q5412
B1ABCF000011
R5437
4.7K DC DETECT
O
P
1 2 3
: AUDIO OUTPUT SIGNAL LINE
TO D-AMP
SECTION (1/4)
IC5400
C0DBEKG00004
VOLTAGE REGULATOR
VC VIN GND
1 2 3
C5449
0.1
QR5401
B1GBCFNN0038
DC DETECT
C5422
16V22
R5446 R5422 D5405
3.3K 330K
B0ACCK000005
Q5403
R5425
10K
B1GBCFNN0038
FAN LOCK DETECT
C5420
C5437 C5418
16V22 0.1 6.3V100
R5428
Q5405 10K
B1ABCF000011
SWITCH
R5427
100K
C5424
5600P
4 5 6 7
VOUT ADJ
4 5 PVDD
GND
R5406 R5407
100K 5.6K
L5403
G1C4R7MA0172
R5408
10K
12VSW
Q5400
B1BAAJ000003
CURRENT CONTROL
C5416
R5420
R5426
1000P
1.2K
1.8M
C5421
Q5401
0.1
B1ADCE000012
R5421
SWITCH
10
Q5404
B1ABCF000011
D5406
FAN MOTOR CONTROL
B0BC7R5A0268
D5404
R5424
B0ACCK000005
10K
D5403 C5423 R5423 C5417 D5402
B0ACCK000005 1 16V10 B0BC012A0269
10K
8 9 10
115
RL5003*
R5463
0
L5401
CN5400
J0JKB0000003
D
6 +55V
TO
+55V
5
SMPS CIRCUIT
4 PGND
(JW1*)
L5402
3 PGND
IN SCHEMATIC
J0JKB0000003
FAN GND
2
DIAGRAM - 30
1 +18V FAN
CN5401
1 FAN DC OUT
C5419 1
TO FAN
2 FAN GND
3 FAN LOCK
R5434
10K
Q5402
B1ABCF000011
SWITCH
R5435
10K
TO D-AMP
SECTION (4/4)
1/4 2/4
3/4 4/4
SA-BT235P D-AMP CIRCUIT
11 12 13
1
4
3
P1
2
14