Main Circuit (2/4) - Panasonic SC-HTB10P Service Manual

16.8. MAIN CIRCUIT (2/4)

15 16 17
SCHEMATIC DIAGRAM - 8
B MAIN CIRCUIT
R427 10
TO MAIN
SECTION (1/4)
R428 10
R429 100
PWM_SW1+
R440 100
PWM_SW1-
PWM_SW2+
R442 100
PWM_SW2-
R444 10
R443 10
C427 C426
16V10 0.1
R445 10
R446 10
R447 10
SD R448 100
PWM_FL+
R449 100
PWM_FL-
PWM_FR+
VALID R451 100
PWM_FR-
R452 10
L400
G0A200D00002
+12V R453 10
C433 C432
16V10 0.1
DGND
C441
16V33
R454 10
C512
0.1
P1
18 19 20
: +B SIGNAL LINE : AUDIO OUTPUT SIGNAL LINE
IC403
C1AB00003217
DIGITAL AMPLIFIER
C423 C460
0.1 0.1
1 GVDD_B GVDD_A 44
C464 0.033
2 43
OTW(L) BST_A
3 NC NC 42
4 NC PVDD_A 41
C467
C461
25V470
5 SD(L) PVDD_A 40
0.1 C463
1
6 39
PWM_A OUT_A
7 RST_AB(L) GND_A 38
C462
8 37
PWM_B GND_B C466
0.1
9 1
OC_ADJ OUT_B 36
10 GND PVDD_B 35
R441 C470 0.033
11 AGND BST_B 34
22K
C476 0.033
12 VREG BST_C 33
13 M3 PVDD_C 32
C424
0.1
14 31
M2 OUT_C C480
C477
1
15 M1 GND_C 30
0.1
16 29
PWM_C GND_D
RST_CD(L)
17 OUT_D 28
C482
C478
C505
18 PWM_D PVDD_D 27 1
0.1
25V470
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
C802 C803
0 0
HEATSINK
IC405
C1AB00003217
DIGITAL AMPLIFIER
C429 C481
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
SD(L) PVDD_A 40 25V470
0.1 C494
1
6 39
PWM_A OUT_A
7 RST_AB(L) GND_A 38
C497
8 PWM_B GND_B 37
C491
0.1
1
9
OC_ADJ OUT_B 36
10 GND PVDD_B 35
C498 0.033
R450
11 AGND BST_B 34
22K
C507 0.033
12 VREG BST_C 33
13 M3 PVDD_C 32
C430
0.1
14 M2 OUT_C 31
C515
C508
1
15 M1 GND_C 30
0.1
16 PWM_C GND_D 29
RST_CD(L)
17 OUT_D 28
C516
C509
18 PWM_D PVDD_D 27
C519
0.1 1
25V470
19 NC PVDD_D 26
20 NC NC 25
C510 0.033
21 VDD BST_D 24
22 GVDD_C GVDD_D 23
C431
C514
0.1
0.1
21 22 23
L410
G0A100H00018
L413
G0B9R5K00007
3
C804 C472 R500
0.47 0.1
5.6K
1
C473
0.1
L417
G0A100H00018
L418
G0A100H00018 L412
G0B9R5K00007
C805 C486
0.47 0.1
1
R501
5.6K
C487
0.1
3
L419
G0A100H00018
R521 R520
100K 100K
Q501
B1ABCF000011
SWITCH
Q500
R522 C548 R523 R524
B1ABCF000011
33K 50V10 100K 100K
SWITCH
L406
G0A100H00018
L414
G0B9R5K00007
3
C806 C501
0.47 0.1
R502
5.6K
C502 1
0.1
L407
G0A100H00018
L408
G0A100H00018
L415
G0B9R5K00007
C807 C522
0.47 0.1
3
R503
5.6K
C523
0.1
1
L409
G0A100H00018
TO MAIN
SECTION (4/4)
88
24 25 26
SP_FL+ C192 1000P
TL
SP_SW1-
4
R469 CHASSIS
3.3
C447 C166
SP_SW1+
0.01 1000P
2
C446 C165
0.01 1000P
R468
3.3
SP_FL- C191 1000P
SP_SW2- C187 1000P
R467
3.3
SP_SW2-
2
C445 C164
0.01 1000P
SP_SW2+
4 C444 C163
0.01 1000P
R466
3.3
SP_SW2+
C188 1000P
SP_FR+ C181 1000P
R465
3.3
SP_PROTCT
1 FRONT_R+
C443 C162
2 FRONT_R-
0.01 1000P
3 FRONT_L+
4 FRONT_L-
1 SUBW_2-
C442 C161
0.01 1000P
2 SUBW_2+
3 SUBW_1+
R464
4 SUBW_1-
3.3
SP_FR-
C186 1000P
VDD
SP_SW1+
C189 1000P
R507
SP_FL-
3.3
4
C456 C172
SP_FL+
0.01 1000P
2
C455 C171
0.01 1000P
R506
SP_FR- 3.3
4
SP_SW1- C190 1000P
SP_FR+
2
TL 403
1/4 2/4
3/4 4/4
SC-HTB10P/PC MAIN CIRCUIT
27 28
A
B
402
C
D
CN401*
TO SPEAKERS
(FRONT)
TO SPEAKERS
(SUBWOOFER)
CN402*
E
F
G
H