Panasonic SA-XH50P, Service Manual

Page: 108 / 131

108
I
K
L
J
M
O
P
N
43 44 45 46 47 48 49 50 51 52 53 54 55 56
B MAIN CIRCUIT
SCHEMATIC DIAGRAM - 14
SA-XH50P/PC MAIN CIRCUIT
3/8 4/8
7/8
2/8
6/8 8/8
1/8
5/8
TO MAIN
CIRCUIT (7/8)
TO MAIN
CIRCUIT (4/8)
AA AD AC AB
P1
P1
: MUSIC PORT/AUX/TUNER AUDIO INPUT SIGNAL LINE : -B SIGNAL LINE : +B SIGNAL LINE : FM SIGNAL LINE : AUDIO OUTPUT SIGNAL LINE
C574
0.1
SP_SR+
G0A100H00018
L405
PVDD_D
G0A100H00018
L404
C559
0.1
SP_SR-
C554
25V330
R460 100
PWM_SR-
PW_+12V
R461 10
R462 10
C550 0.033
C558
0.1
R505
5.6K
C436
0.1
C546
0.1
C551
0.1
0.1
C802
0.1
C803
R463 10
C438
0.1
C437
0.1
16V33
C441
C512
0.1
C439
10
OTW
SD
IC404
DIGITAL AMPLIFIER
C1AB00003217
C434
0.1
VALID
R455 10
R456 10
100K
R530
100K
R532
100K
R531
100K
R529
C526
0.1
SP_SL-
C527 0.033
C547 0.033
0.1
C540
G0A100H00018
L403
G0A100H00018
L402
25V330
C533
5.6K
R504
SP_SL+
C537
0.1
R458 100
R457 100
PWM_SL-
C528
0.1
C529
0.1
R459
22K
C530 0.033
GND
0
K303
HEATSINK
43
11
9
10
34
36
35
12 33
6
7
5
39
38
41
40
8 37
23 22
20
18
16
14
13
15
17
19
31
32
28
26
25
27
30
29
21 24
3
4
2
1
42
44
NC
OUT_C
BST_C
OUT_D
GND_C
GND_D
NC
OUT_A
BST_A
BST_B
GND_A
OUT_B
GND_B
BST_D
PVDD_D
PVDD_D
PVDD_A
PVDD_B
GVDD_A
PVDD_A
PVDD_C
GVDD_D
NC
M2
NC
NC
M3
M1
GND
NC
VDD
VREG
AGND
PWM_B
PWM_D
PWM_C
SD(L)
PWM_A
OC_ADJ
GVDD_B
OTW(L)
GVDD_C
RST_AB(L)
RST_CD(L)
C809
0.47
C808
0.47