Panasonic TH-42PX20U-P Service Manual page 317

14.66. SC-Board Block Diagram
SC
Scan Drive Board
IC6605
BUFFER
TO D20
SC20
CSH 18 17 3
CSL 17 11 9
CMH 20 15 5
CML 19 4 16
CEH 14 6 14
CEL 13 8 12
IC6606
BUFFER
CPH 9 2 18
CEL2 8 11 9
17 3
CL 2 13 7
CLK 3 8 12
SIU 4 15 5
SID 6 6 14
SCSU 7 4 16
SOS1 11
SOS2 12
TH-42PX20U-P
SC-BOARD BLOCK Diagram
IC6602
FET DRIVER
12
IC6604
IC6603
BUFFER
FET DRIVER
4 6 12
1 3
13 11
IC6601
2 12
FET DRIVER
5
12
14
Q6617
Q6616
D6584
IC6581
Q6581
CSH
D6615
D6616
Q6627 Q6621
8
Q6628 Q6622
S1
CSL
D6617
Q6629 Q6624
8 D6618
Q6630 Q6625
S2 CMH
Q6601
VSUS
Q6611
Q6612
Q6604
8
S3 CML
Q6605
1
Q6613
Q6614
Q6608
CL
L6611,12,13
CLK
L6614,15,16
SIU
1/2 Vo
SID
CEL2
SCSU
D6583
(RED LED)
D6459
D6468
D6470
D6479
D6505
PHOTO COUPLE
2 4
D6506
PHOTO COUPLE
2 4
D6507
PHOTO COUPLE
2 4
D6508
PHOTO COUPLE
2 4
D6501
PHOTO COUPLE
2 4
D6502
PHOTO COUPLE
CPH
Q6
1 4
D6503
PHOTO COUPLE
CEL
Q6
1 4
D6504
PHOTO COUPLE
Q6
1 4
D6458
Vf
VS
D6467
D6469
Vfo
D6480 VA
128