Panasonic SA-PT70EB Service Manual page 103

SCHEMATIC DIAGRAM - 11
B
MAIN/D-AMP CIRCUIT
: +B SIGNAL LINE
R455 10
TO MAIN/D-AMP
SECTION (5/6)
R456 10
OTW
SD R457 100
PWM_SL+
VALID R458 100
PWM_SL-
PWM_SR+
R460 100
PWM_SR-
L400 R461 10
G0A200D00002
R462
1
C439
16V10
GND
C441
16V33
R463 10
C512
0.1
D402
B0ACCK000005
DC_DET2
Q116
B1ADBL000010
SWITCH
R178
47K
Q114
B1ABCF000011
DC DETECT
R587
56K
ECO_DAMP
L422
J0JKB0000020
4
L421
J0JKB0000020
3
2
29 30 31 32
: -B SIGNAL LINE : AUX/TV/MUSIC PORT AUDIO INPUT SIGNAL LINE
TO MAIN/D-AMP
SECTION (3/6)
IC404
C1AB00003217
DIGITAL AMPLIFIER
C434
C526
0.1 0.1
1 GVDD_B GVDD_A 44
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 C531 25V470
0.1
1
6 39
PWM_A OUT_A
7 RST_AB(L) GND_A 38
C529
8 37
PWM_B GND_B C532
0.1
1
9
OC_ADJ OUT_B 36
10 GND PVDD_B 35
R459 C530 0.033
11 34
22K AGND BST_B
C547 0.033
12 VREG BST_C 33
13 32
C436 M3 PVDD_C
0.1
14 M2 OUT_C 31 C552
C546
1
15 M1 GND_C 30
0.1
16 29
PWM_C GND_D
RST_CD(L)
17 OUT_D 28
C553
C574
1
18 PWM_D PVDD_D 27
0.1 C554
25V470
19 NC PVDD_D 26
20 NC NC 25
C550 0.033
21 24
VDD BST_D
10
22 GVDD_C GVDD_D 23
C437
C438 C551
0.1 0.1 0.1
C802 C803
0.1 0.1
HEATSINK
R236
4.7K
R179 C158
220K 0.1
R180
220K
R184
5.6K
D118 C151
R176
B0ACCK000005 50V1 5.6K
R175
5.6K
C153
D119
100K 0.1
B0ACCK000005
33 34 35
: AUDIO OUTPUT SIGNAL LINE : FM SIGNAL LINE
L402
G0A100H00018
G0B9R5K00003
C540
3
0.1
R504
5.6K
C537
0.1
1
L403 C536
G0A100H00018 0.47
L404
G0A100H00018 G0B9R5K00003
C558
0.1 3
R505
5.6K
C559
1
0.1
L405 C557
G0A100H00018 0.47
C150 K159
25V1000
0 3
ZJ159
2
1
36 37 38
103
L416
SP_SL-
4
K1
0
SP_SL+
2
K3
0
...EB
K4
0
L411
...EG
K9
SP_SR-
0
4
...EP
K12
0
SP_SR+
2
K14
0
...EB
K15
0
...EG
K20
0
...EP
SP_PROTCT
SP_FR+
SP_FL+
SP_SUB+
1/6 2/6 3/6
SA-PT70EB/EG/EP
4/6 5/6 6/6
MAIN/D-AMP CIRCUIT
39 40 41
I
J
K
L
M
N
O
P
42