Main Circuit (For Sa-Xh10Ga/Gk - Panasonic SA-XH10EE Supplemental Service Manual

3.6. Main Circuit (For SA-XH10GA/GK-K)
With reference to original service manual (section 17.3) on pages 95 ~ 98.
43 44 45
SCHEMATIC DIAGRAM - 9
B MAIN CIRCUIT
: +B SIGNAL LINE
R427 10
TO MAIN
CIRCUIT (3/8)
R428 10
R429 100
PWM_CENT+
R440 100
PWM_CENT-
PWM_SUBW+
R442 100
PWM_SUBW-
R444 10
R443 10
C427 C426
10 0.1
R445 10
R446 10
R447 10
OTW
SD R448 100
PWM_FL+
R449 100
PWM_FL-
PWM_FR+
VALID
R451 100
PWM_FR-
R452 10
R453 10
C433
C432
10 0.1
GND
R454 10
P1
46 47 48
: -B SIGNAL LINE : AUX/TUNER AUDIO INPUT SIGNAL LINE
IC403
C1AB00003217
DIGITAL AMPLIFIER
C423 C460
0.1
0.1
1 GVDD_B GVDD_A 44
C464 0.033
2 OTW(L) BST_A 43
3 NC NC 42
C467
4 41
NC PVDD_A
25V330
C461
5 SD(L) PVDD_A 40
0.1
6 39
PWM_A OUT_A
7 RST_AB(L) GND_A 38
C462
8 PWM_B GND_B 37
0.1
9 36
OC_ADJ OUT_B
10 GND PVDD_B 35
R441 C470 0.033
11 AGND BST_B 34
22K
C476 0.033
12 33
VREG BST_C
13 M3 PVDD_C 32
C424
0.1
14 M2 OUT_C 31
C477
15 M1 GND_C 30
0.1
16 PWM_C GND_D 29
17 RST_CD(L) 28
OUT_D
C478 C505
18 PWM_D PVDD_D 27
0.1
25V330
19 NC PVDD_D 26
20 25
NC NC
C479 0.033
21 VDD BST_D 24
22 GVDD_C GVDD_D 23
C425 C490
0.1
0.1
IC405
C1AB00003217
DIGITAL AMPLIFIER C481
C429
0.1 0.1
1 GVDD_B GVDD_A 44
C492 0.033
2 43
OTW(L) BST_A
3 NC NC 42
4 NC PVDD_A 41
C496
C493
5 25V330
SD(L) PVDD_A 40
0.1
6 PWM_A OUT_A 39
7 38
RST_AB(L) GND_A
C497
8 PWM_B GND_B 37
0.1
9 OC_ADJ OUT_B 36
10 GND PVDD_B 35
R450 C498 0.033
11 AGND BST_B 34
22K
C507 0.033
12 VREG BST_C 33
C430 13 M3 PVDD_C 32
0.1
14 M2 OUT_C 31
C508
15 30
M1 GND_C
0.1
16 PWM_C GND_D 29
17 RST_CD(L) OUT_D 28
C509
18 PWM_D PVDD_D 27
0.1 C519
19 NC PVDD_D 26 25V330
20 25
NC NC
C510 0.033
21 VDD BST_D 24
22 GVDD_C GVDD_D 23
C431
C514
0.1
0.1
TO MAIN
CIRCUIT (8/8)
49 50 51
: AUDIO OUTPUT SIGNAL LINE : FM SIGNAL LINE
L410
G0A100H00018
C804 C472 R500
0.47 0.1
5.6K
C473
0.1
L417
G0A100H00018
L418
G0A100H00018
C805 C486
0.47 0.1
R501
5.6K
C487
0.1
L419
G0A100H00018
CHANGE
R520 R521
100K 100K
Q501
B1ABCF000011
B1ABCF000231
SPEAKER PROTECT SWITCH
Q500
R522 C548 R523 R524
B1ABCF000011
33K 50V10 100K 100K
B1ABCF000231
SPEAKER PROTECT SWITCH
L406
G0A100H00018
C806 C501
0.47 0.1
R502
5.6K
C502
0.1
L407
G0A100H00018
L408
G0A100H00018
C807 C522
0.47 0.1
R503
5.6K
C523
0.1
L409
G0A100H00018
16
52 53 54 55
C566
1000P
GND
SP_SUB+ C185 1000P
R469
3.3
C447 C166
0.01 1000P
SP_CENT- C446 C165
0.01 1000P
R468
3.3
SP_CENT+
SP_SUB- C184 1000P
SP_CENT+ C183 1000P
R467
3.3
C445 C164
0.01 1000P
C444 C163
0.01 1000P
SP_SUB-
R466
3.3
SP_CENT-
C182 1000P
SP_FR+ C181 1000P
SP_SUB+
R465
3.3
C186 1000P
C443 C162
0.01 1000P
JK401
G1
C442 C161 1 SW+
0.01 1000P
2 SW-
R464 3 C+
SP_PROTCT
3.3
4 C-
5 FRONT_R+
SP_FR-
6 FRONT_R-
SP_FL+
7 FRONT_L+
8 FRONT_L-
9 SR+
R496
3.3
SR-
10
11 SL+
C448 C167
0.01 1000P
12 SL-
G2
C449 C168
0.01 1000P
C192 1000P
R497
3.3
SP_FL- C191 1000P
SP_SR+ C187 1000P
SP_FL-
R498
3.3
SP_FL+
C450 C169
0.01 1000P
C454 C170
0.01 1000P
R499
3.3
SP_SR- C188 1000P
SP_SL+
C189 1000P
SP_FR-
R507
3.3
C456 C172
0.01 1000P
SP_FR+
C455 C171
0.01 1000P
R506
3.3
SP_SL-
C190 1000P
C567
1000P
K157
0
CHASSIS
1/8 2/8 3/8 4/8
5/8 6/8 7/8 8/8
SA-XH10GA/GK MAIN CIRCUIT
56
A
B
C
D
TO SPEAKERS
E
F
G
H