A-Board (19/20) Schematic Diagram - Panasonic TC-P50VT20 Service Manual

12.23. A-Board (19/20) Schematic Diagram

! A-BOARD TXN/A1LSUUS (19/20)
163 164
LOCK_LDA2-DCDC
IC5500
C0DBAYY00715
DC-DC CONVERTER
15V->1.2V_A,15V->1.2V_D
R5512 C5508
10 16V 0.1u
R5516
1 DRVH1 24 0
SW1
2 VBST1 23
DRVL1
3 EN1 22
TO 9/20 DCDCEN
PGND1 R5517
10k
R5508 4 VO1 21
R5500 R5529 TRIP1
820
0
0 5 20
VFB1
VIN
C5502
R5504
6 19 10V 4.7u
1.24k GND
VREG5
C5500 C5503
7 18 16V 1u
25V 6800p SS1
R5501 V5FILT
C5504
0
8 VFB2 17 25V 6800p
SS2
R5505 R5530
R5509 0 9 VO2 16
1.24k
820 TRIP2
R5522
10 EN2 15 20k
PGND2
11 VBST2 14
DRVL2
12 DRVH2 13
SW2
R5518
0
R5513
C5509
10
16V
0.1u
IC5501
C0DBAYY00715
DC-DC CONVERTER
15V->3.3V,15V->1.5V
R5514
C5510
10
16V 0.1u
R5519
1 DRVH1 24 0
SW1
2 23
VBST1
DRVL1
3 22
EN1
PGND1 R5520
4 21 15k
R5510 VO1
R5502 2k R5531 TRIP1
0 0 20
5 VFB1
VIN C5505
R5506
4.7u
2.1k 6 GND 19 10V
C5501 VREG5
C5506
10V 0.15u 7 SS1 18 16V 1u
R5503 V5FILT
C5507
0
8 VFB2 17 10V 0.039u
SS2
R5532
R5507
R5511 0 9 VO2 16
1.1k
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
165 166 167
DCDCIN
L5504
G1C100MA0077
Q5500
C5516 C5520
B1MBDDA00003 25V 25V
10u 10u
SUB1.2V_A
TP5500
L5502
G1C2R2Z00007
C5528 C5532 C5536
6.3V 6.3V 6.3V
22u 22u 22u
D5505 SUB1.2V_D
C5529 C5533 C5537
TP5501
6.3V 6.3V 6.3V
B0JCPD000026
22u 22u 22u
L5500
G1C2R2M00022
Q5501
B1CFRD000048
C5522 C5526
Q5504 25V 25V
10u 10u
B1CFRD000048
DCDCIN
L5505
G1C100MA0077
Q5502
C5517 C5521
B1MBDDA00003 25V 25V
10u 10u
SUB1.5V
TP5502
L5503
G1C3R3Z00004
C5530 C5534 C5538
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
168 169
67
170 171