Panasonic SA-AK520E Service Manual page 139

SCHEMATIC DIAGRAM - 8
MAIN CIRCUIT
Q866 Q867
R882
100K
R881
100K
R877 R852
R850
3.3K 1K
1K
Q843
Q845
Q843,Q845
KTD1304TA
SUBWOOFER LEVEL CONTROL
Q863
KTD1304TA
SUBWOOFER MUTING SWITCH
: -B SIGNAL LINE
: +B SIGNAL LINE
Q866,Q867
B1GDCFJJ0023
SWITCH
R851
1K
C871 R878
16V10 0
R875
1.5K
Q863
R352
3.3K
R839
220
R880
3.3k
R888
0
R887 R848
C865
0 0
0.01
TO FAN UNIT
R353
8.2K
C339
0.01
10K
R399
Q375
C375 16V330
Q375
B1ABCF000011
D377
SWITCH
B0ACCK000005
Q374
R379
100K
R378
100
D376
B0ACCK000005
D375
C373
B0ACCK000005
50V10P
R377
220K
D374
B0EAKM000117
Q373
Q372
D371
B0BC01000014
C372
16V220
D370
B0ACCK000005
R373 3.3K
Q371
C371
0.01
R371
4.7K
Q370
C370
0.01
R398
10K
R370
100K
Q371,Q373
2SD0592ARA
LOW FREQUENCY AMPLIFIER
Q370,Q372,Q374
B1ADCF000001
SWITCH
CN305
2
1
DCDET
C378
16V10
SW5V
-9V
R381
2.2M
FAN