A-Board (17/18) Schematic Diagram - Panasonic TC-P46G25 Service Manual

12.21. A-Board (17/18) Schematic Diagram

A-BOARD TXN/A1LKUUS (17/18)
!
TO 8/18
145 146
LOCK_LDA2-DCDC
IC5500
C0DBAYY00715
DC-DC CONVERTER
15V->1.2V_A,15V->1.2V_D
C5508
R5512 10
16V 0.1u
R5516 0
1 DRVH1 24
SW1
2 VBST1 23
DRVL1
3 22
DCDCEN EN1
PGND1 R5517
10k
4 21
R5508 VO1
TRIP1
820
R5500
5 20
VFB1
S VIN C5502
R5504 R5529
10V 4.7u
1.24k 6 GND 19
VREG5
C5500 C5503
25V 6800p 7 SS1 18 16V 1u
R5505 V5FILT
C5504
R5501 1.24k
8 VFB2 17 25V 6800p
S SS2
R5530
R5509 9 VO2 16
820 TRIP2
R5522 Q5501
10 EN2 15 20k
B1CFRD000048
PGND2
11 VBST2 14
DRVL2
12 DRVH2 13
SW2
Q5504
R5518 B1CFRD000048
0
R5513 C5509
10 16V
0.1u
IC5501
C0DBAYY00715
DC-DC CONVERTER
15V->3.3V,15V->1.5V
C5510
R5514 10 16V 0.1u
R5519 0
1 24
DRVH1
SW1
2 23
VBST1
DRVL1
3 EN1 22
PGND1 R5520
15k
R5510 4 VO1 21
2k TRIP1
R5502
5 VFB1 20
S VIN
C5505
R5506 R5531
6 GND 19 10V 4.7u
2.1k
VREG5
C5501 C5506
10V 0.15u 7 18 16V 1u
SS1
R5507 V5FILT
C5507
R5503 1.1k
8 17 10V 0.039u
VFB2
SS2
S
R5532
9 16
R5511 VO2
TRIP2
3.6k
R5523
10 EN2 15
24k
PGND2
11 VBST2 14
DRVL2
12 DRVH2 13
SW2
R5521
0
R5515 C5511
10 16V
0.1u
147 148
DCDCIN
L5504
G1C100MA0077
Q5500
B1MBDDA00003
C5516 C5520 SUB1.2V_A
25V 25V TP5500
L5502
10u 10u
G1C2R2Z00007
C5528 C5532 C5536
6.3V 6.3V 6.3V
22u 22u 22u
D5505 SUB1.2V_D
B0JCPD000026
C5529 C5533 C5537 TP5501
6.3V 6.3V 6.3V
22u 22u 22u
L5500
G1C2R2M00022
C5526
C5522
25V 25V
10u 10u
DCDCIN
L5505
G1C100MA0077
C5517 C5521 SUB1.5V
25V TP5502
25V
L5503
10u 10u
G1C3R3Z00004
Q5502
C5530 C5534 C5538
B1MBDDA00003 6.3V 6.3V 6.3V
22u 22u 22u
C5531 C5535 C5539 SUB3.3V
Q5503 6.3V 6.3V 6.3V
TP5503
22u 22u 22u
B1MBEDA00015
L5501
G1C3R3Z00005
C5519 C5523
25V 25V
10u 10u
149 150
63
151 152 153