Panasonic TH-P50V20A Service Manual page 62

12.22. A-Board (18/22) Schematic Diagram
A-BOARD (18/22)
!
F15V
R5696
SUB6V
P
IC5302
C0DBAYY00755
C5310 C5311 1 BOOT
25V 25V
R5724
10u 10u
15
2 VIN
C5724
L5611 25V
G1C6R8MA0416 0.1u
3 SW
C5603
C5729 C5728 C5720 C5719
50V
10V 10V 10V 10V
1000p
10u 10u 10u 10u D5603 4
GND
B0JCPG000030
R5603
2.2
R5684
D5250
B0ACCJ000048
C5251
25V
1u
8 VO
VCC
7 FB
N.C
R5253
10k
6
GND
N.C
5 N.C
EN
FIN
IC5250
C0DBEYY00123
5V
F15V
R5607
22k
R5600
D5602
R5609
DZ2J056M0L
10k
Q5602
C5616
DSC2001S0L
R5612 R5608
25V
10k 68k
0.01u
R5611
2.2k
Q5603
R5613
DSC2001S0L
C5615 47k
R5610
10V
47k
2.2u
154 155
R5310
P
PA5300
C5725
VJUMP1608-P
25V
6800p
P
8 *C5312
*C5313
SS
25V 25V
10u
"H": ON 10u
"L": OFF
7
DCDCEN TO 18,21/22
EN
*L5301
R5683
C5726
6.2k G1C6R8MA0416
6 25V 0.01u
COMP
1%
*C5315 *C5314
*R5315
6.3V 6.3V
1k
5 22u
22u
FB
Thermal_Pad
R5682
R5681
10k 1.5k
P 1% 1%
TP5250
C5253
25V
1u
1
R5254
5.36k
2 1%
R5255
1k
3 1%
4
3.3V
68
DCDCEN TO 18,21/22 IC5251
C0CBCBC00227
C5255 VIN VOUT
10V
1u
VSS
ON/OFF NC
156 157
9V
IC5290
C0DBGYY00884
1 VOUT 3
VIN
C5293 C5294
25V VSS 16V
1u 1u
2
SUB_OP_5V
*IC5303
C0DBAYY00755 *C5318
25V
6800p
1 BOOT 8
SS
*R5312
"H": ON
15
"L": OFF
2 VIN 7
DCDCEN TO 18,21/22
EN
*C5317
25V
*R5309 *C5319
0.1u 5.6k TP5208
3 SW 6 1% 25V 0.01u
COMP
*C5301
50V
1000p
4 5
GND
FB
*R5301
Thermal_Pad
2.2
*R5308
*R5307
R5311
12k 2.2k
P 0.5%
0.5%
TP5301
TP5291
TP5209
SUB3.3V
C5649
R5640
10V
10k 1u
R5641
10k
CE VIN
VSS
IC5603
NC VOUT
TP5292
C0DBFYY00049
3.3V
C5650
10V
2.2u
AVDDH
IC5604
D5605
TP5293
B0ECKM000048
C0DBGYY00578
C5651
R5642
10V VIN VOUT C5652
100k SUB3.3V
6.3V
4.7u
4.7u
VSS
NC ON/OFF
R5643
10k
R5644
7.5k
C5256
10V
1u
158 159
62
STB3.3V
Q5435 Q5431
R5433
DSA200100L DSA200100L 1k
R5437 R5431
2.2k 2.2k
R5438 R5432
4.7k 3.3k
D5431
B0ADEJ000035
R5444
SUB9V
100k
C5431
Q5436
TO 18,21/22 DCDCEN
16V
DSC200100L 0.1u
R5445
100k
D5432
B0ADEJ000035
SUB_OP_5V
SUB6V
SUB5V Q5432
DSC2001S0L
ACHIP3.3V
AVDDH
SUB_AI_3.3V
160 161
TO Sheet GenX
TP5431
SOS
TO 6/22
SG-SOS
C5432
R5434
10k 16V
0.1u
SUB6V
R5435
220
SUB_OP_5V
*R5443
220
SUB9V
R5439
470
SUB5V
R5441
220
SUB5V SUB9V
D5442 D5441
DZ2J068M0L DZ2J120M0L
D5433
R5451 B0ADCJ000100
1k
R5452
100k
R5454 R5453
4.7k 4.7k
SUB1.2V_D SUB1.2V_A
D5444 D5445
DZ2J068M0L
DZ2J068M0L
D5434
B0ADCJ000100
R5458
R5456
4.7k 4.7k
SUB3.3V SUB1.5V
D5449 D5443
DZ2J068M0L DZ2J068M0L
D5437
B0ADCJ000100
R5461 R5455
4.7k 4.7k
SUB_OP_5V SUB6V
*D5439 D5440
DZ2J068M0L DZ2J120M0L
D5435
B0ADCJ000100
R5540
*R5459
4.7k
4.7k
162