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

TH-42PA50E / TH-42PE50B / TH-37PA50E / TH-37PE50B

14.54. SC-Board Block Diagram

SC
SCAN DRIVE
IC6605
TO D20 SC20 BUFFER
CSL 17 6 14
IC6607
AND GATE
4A
CSH 18 8 12 12
4Y
11
4B
13
3A
CMH 20 15 5 9
3Y
3B 8
10
2A
4
2Y
6
2B
5
9 11
CML 19 17 3
CEL 13 2 18
IC6606
BUFFER
CPH 9 11 9
CEL2 8 13 7
CL 2 2 18
CLK 3 4 16
SIU 4 6 14
6 8 12
SID
SCSU 7 17 3
SOS1 11
SOS2 12
TO P2 SC2
VSUS 1
VSUS 2
TO P23
SC23
+15V 1
2
+15V
TH-37/42PA50E, TH-37/42PE50B
SC-Board Block Diagram
ENERGY RECOVERY
IC6602
FET DRIVER CSH D6624
L6611,12,13
Q6621
S
L6614,15,16
12 8
D
1/2 Vo
S CSL
14 1
Q6624
D
D6629
Vsus GEN.
IC6601
S2 CMH
FET DRIVER Q6601
VSUS
Q6611
Q6602
Q6612
12 8
Q6603
S3 CML
Q6606
14 1
Q6613
Q6607
Q6614
Q6608
CEL
Q6583
SCSU
Q6584
D6584
IC6581
Q6581
SCAN DRIVER 2
SOS BLINKING TIMES D6583
LED 7 TIMES (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 FLOATING GROUND
IC6501
PC6505
BUFFER
PHOTO COUPLER
CL
FCLD
2 7 1 2 5 6
FCLU
3 4
CLK
FCLKD
3 6 13 12 9 8
FCLKU
11 10
PC6507 IC6502
PHOTO COUPLER BUFFER
SIU
FSIU
2 7 1 2
SID
FSID
3 6 3 4
PC6509
PHOTO COUPLER 5 6 9
CEL2
2 4 11
VSCN perfect
IC6511
VSCN
FET DRIVER SC
Q6511
Q6501 2 7
SC
4
Q6512
Q6476
VAD+15V
Q6477
VSET perfect
(VSET rise)
PC6510 IC6521
CPH VSET
Q6520
PHOTO COUPLER FET DRIVER
Q6521
CPH
1 4 Q6502 2 7
VSET INSERT
Q6530
4
CPH
VSET perfect
PC6503 IC6541
CEL
PHOTO COUPLER FET DRIVER
Q6541
CEL
1 7 Q6503 2 7
VSET2 INSERT
4 Q6551
Q6552
SCSU
4 6
CEL
VSCN gen.
IC6542
FET DRIVER
VAD INSERT
Q6504 2 4 Q6553
PC6458
D6459
PHOTO
+5V(SC1)
COUPLER
PC6469
D6470
PHOTO
+5V(SC3)
COUPLER
PC6467
Vscn(VAD+118V=28V)
D6468
PHOTO
COUPLER
PC6480
D6479
PHOTO VAD(-90V)
COUPLER
COLD CHASSIS GROUND
FLOATING GROUND
120
PROU
8
PROD
10
TPSC1
(Vfo)
VSET REG.
Q6491 IC6491
VSUS
Q6492
Q6522
Q6529
VSCN GEN VSET
Q6461 T6461
Q6462 IC6456
Q6542 Q6463 PC6517
IC6453 IC6455
Q6549
VSCN GEN VSET
AVR 15V AVR 5V
Q6451 IC6451
3 1 3 1
Q6454 IC6452
Q6554
VAD GEN
Q6471 IC6471
Q6472 IC6472
Q6555
Q6474
PC6474
VAD
SCSU
T6471
TPSC1 WAVEFORM
VSET
VSUS
VAD
VSCN
VSET2
TH-37/42PA50E, TH-37/42PE50B
SC-Board Block Diagram
SC42 TO SD42
A1 B1
A8 B8
Vf
Vf
A30 B30
FSID
A2 B2 FSID
FCLD
A3 B3 FCLD
FCLKD
A4 B4 FCLKD
PROD
A5 B5 PROD
VF5V A6 B6
VF5V
A7 B7
A33 B33
Vfo
Vfo
A40 B40
SC46 TO SD46
FSID
2
FCLD
4
6 FCLKD
8 PROD
9 VF5V
10
VF5V
TO SU45
SC45
FSIU
2
4 FCLU
6 FCLKU
8 PROU
9 VF5V
10 VF5V
TO SU41
SC41
A1 B1
Vfo
Vfo
A8 B8
A11 B11
Vf
Vf
A33 B33
A40 B40
VF5V
A34 B34
VF5V
A35 B35
PROU
A36 B36 PROU
FCLKU
A37 B37 FCLKU
FCLU
A38 B38 FCLU
FSIU
A39 B39 FSIU