Sc-Board Block Diagram - Panasonic TH-42PA50E Service Manual

14.54. SC-Board Block Diagram

SC
TO D20 SC20
17
CSL
CSH 18
CMH 20
CML 19
CEL 13
CPH 9
CEL2 8
CL 2
CLK 3
SIU 4
SID 6
SCSU 7
SOS1 11
12
SOS2
TO P2
SC2
1
VSUS
2
VSUS
TO P23 SC23
1
+15V
+15V 2
TH-37/42PA50E, TH-37/42PE50B
SC-Board Block Diagram
SCAN DRIVE
IC6605
BUFFER
6 14
IC6607
AND GATE
4A
8 12 12
4Y
11
4B
13
3A
15 5 9
3Y
8
3B
10
2A
4
2Y
6
2B
5
9 11
17 3
2 18
IC6606
BUFFER
11 9
13 7
2 18
4 16
6 14
8 12
17 3
D6584
ENERGY RECOVERY
IC6602
FET DRIVER CSH
Q6621
S
12 8
D
1/2 Vo
S
CSL
14 1
Q6624
D
Vsus GEN.
IC6601
S2 CMH
FET DRIVER
Q6611
Q6612
12 8
S3 CML
14 1
Q6613
Q6614
CEL
Q6583
SCSU
Q6584
IC6581
Q6581
SCAN DRIVER 2
SOS BLINKING TIMES
LED 7 TIMES
D6624
L6611,12,13
L6614,15,16
D6629
Q6601
VSUS
Q6602
Q6603
Q6606
Q6607
Q6608
D6583
(GREEN LED)
SCAN
DRIVE
+5V(SC1),+5V(SC3)
Vscn,VAD(-90V)LINE
VOLTAGE DOWN DET
SCAN DRIVER 1
SOS BLINKING TIMES
LED 2 TIMES
COLD CHASSIS GROUND
COLD CHASSIS GROUND
FLOAT
PC6505
PHOTO COUPLER
CL
2 7
CLK
3 6
PC6507
PHOTO COUPLER
SIU
2 7
SID
3 6
PC6509
PHOTO COUPLER
CEL2
2 4
Q6
PC6510
PHOTO COUPLER
CPH
1 4
PC6503
PHOTO COUPLER
CEL
1 7
SCSU
4 6
PC6458
D6459
PHOTO
COUPLER
PC6469
D6470
PHOTO
COUPLER
PC6467
D6468
PHOTO
COUPLER
PC6480
D6479
PHOTO
COUPLER
120