Panasonic SA-XH50P Service Manual page 108

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