Panasonic SA-BT222EB Service Manual page 113

SCHEMATIC DIAGRAM - 28
I
C
D-AMP CIRCUIT
: +B SIGNAL LINE
J
K
L
M
C5425 R5436
1 22K
N
Q5413
B1ADBL000010
R5439
DC DETECT
220K
R5438
220K
R5437
4.7K
O
P
1 2 3
: AUDIO OUTPUT SIGNAL LINE
C0DBEKG00004
VOLTAGE REGULATOR
VC
1
C5406
25V33
C5409
16V22
R5446 R5422 D5405
3.3K 330K
B0ACCK000005
D5407
B0ACCK000005
Q5403
B1GBCFNN0038
FAN LOCK DETECT
C5420
C5437 C5418
16V22 0.1 6.3V100
Q5405
Q5412 B1ABCF000011
B1ABCF000011 SWITCH
DC DETECT
4 5 6
TO D-AMP
SECTION (1/3)
IC5400
VIN GND VOUT ADJ
2 3 4 5 PVDD
GND
R5406 R5407
100K 5.6K
L5403
G1C4R7MA0098
R5408
10K
VDD
Q5400
B1BAAJ000003
CURRENT CONTROL
C5422 C5416
R5420
R5426
16V22 1000P
1.2K
1.8M
C5421
Q5401
0.1
B1ADCE000012
R5421
R5425
REGULATOR
10K 10
Q5404
B1ABCF000011
D5406
FAN MOTOR CONTROL
B0BC7R5A0268
R5428 D5404
R5424
10K B0ACCK000005
10K
R5427 D5403 C5423 R5423 C5417 D5402
B0ACCK000005 1 16V10 B0BC012A0269
100K 10K
C5424
5600P
7 8 9
113
L5401
CN5400
J0JKB0000003
D
6 +48V
TO
+48V
5
SMPS CIRCUIT
4 PGND
(JW1)
L5402
3 PGND
IN SCHEMATIC
J0JKB0000003
FAN GND
2
DIAGRAM - 29
1 +18V FAN
CN5401
1 FAN DC OUT
C5419 1
TO FAN
2 FAN GND
3 FAN LOCK
R5434
10K
K5424
Q5402
B1ABCF000011
SWITCH
R5435
10K
1/3 2/3
3/3
SA-BT222EB/EG D-AMP CIRCUIT
10 11 12 13
I
J
K
L
M
0
N
O
P
14