Main Circuit (1/4) - Panasonic SC-HC37GN Service Manual

14.4. MAIN CIRCUIT (1/4)

1 2 3
SCHEMATIC DIAGRAM - 3
A
: +B SIGNAL LINE
B
MAIN CIRCUIT
: -B SIGNAL LINE
B
CN401
1
TO LEFT LCH L0+
2
SPEAKER LCH L0-
C
D
E
F
G
NOTE: " * " REF IS FOR INDICATION ONLY
H
4 5 6 7
: CD AUDIO INPUT SIGNAL LINE : TUNER AUDIO INPUT SIGNAL LINE
: AUDIO OUTPUT SIGNAL LINE : iPod/iPhone/USB SIGNAL LINE
USB
JK6000
G
6
4 3 2
RL401*
R404 100K
R405 100K
R406
100K
C437
R407 100K
1000P
C435
1000P
C420
Q400 10
B1ABCF000011
C421
10
DC DETECT
R408
100K
Q401
B1ABCF000011
DC DETECT
R409
100K
R410
22K
Q402
C422 B1ADCE000012
1
DC DETECT R411
4．7K
R418
100K
Q403
B1ABCF000011
DC DETECT
C428
0.1
R401
2.2K
C414
0.1
L404~L407
G1C1R0MA0530
C410
0.1
L400~L403
G1C150M00023
C406
C407
1
1
8 9 10
: FM SIGNAL LINE
: AM SIGNAL LINE
HEADPHONE
JK450
G ET400*
5
C6004
1000P
1
1 5 4 3 2 6 7
C446 1 RCH L0+
1000P
C448
2
RCH L0-
0.022
C6000
0.1 C436 C438
1000P 1000P
C447
0.022
C439 1
IC450
C1AB00003801
HEADPHONE DRIVER
CP CN
8 7
C440
C453
1
1
VDD VSS 6
9
10 GND /MUTE 5
UVP GND
11 4
12 OUTL OUTR 3
C442 C444
68P 68P
13 -INL -INR 2
R438
47K
+INL +INR
14 1
C443
C441
R440
C450
68P
180P
68P
R432
R431 33K
R430
R433
15K 15K
33K
C432 C433
1 1
R423
R426
R427
22K 2.2K
R429 R428
2.2K 2.2K
R422 22K
R424 R425
22K 2.2K
R420 22K
R402
2.2K
C415
0.1
C411 C412 C413
0.1 0.1 0.1
LB400
J0JHC0000107
LB401
J0JHC0000107
C434
25V100
R451
C409
220
1
105
11 12 13
CN400
TO RIGHT
SPEAKER
RL400*
R6004 ...HC37 R6020 ...GN/GS/GSX/PU
0 0
C449
0.01
R452
1K
1
R443
R437
100 560
C452
68P
R434
C451
33K
68P
R441
47K
2
47K C445
180P
R421
15K
15K
C431 C430
1 1
P1
3
4
PDET2
TO MAIN
1/4 2/4
CIRCUIT (3/4)
SC-HC37GN/GS/GSX/PU
3/4 4/4
MAIN CIRCUIT
14
TO MAIN
CIRCUIT (2/4)