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TH-42PWD8WK
Service manual
Panasonic TH-42PWD8WK Service Manual page 322
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Also See for TH-42PWD8WK
:
Specifications
(10 pages)
,
Operating instructions manual
(48 pages)
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Contents
Table of Contents
Troubleshooting
Bookmarks
Table of Contents
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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
SID
6
8
12
7
17
3
SCSU
D6584
SOS1
11
SOS2
12
TO P2
SC2
VSUS
1
VSUS
2
TO P23
SC23
+15V
1
2
+15V
TH-37/42PWD8 SERIES
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
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
2
7
1
2
5
3
CLK
3
6
13
12
9
11
PC6507
IC6502
BUFFER
PHOTO COUPLER
SIU
FSIU
2
7
1
2
SID
FSID
3
6
3
4
PC6509
PHOTO COUPLER
5
6
CEL2
2
4
VSCN perfect
IC6511
FET DRIVER
SC
Q6511
Q6501
2
7
SC
4
Q6512
Q6476
VAD+15V
Q6477
VSET perfect
(VSET rise)
PC6510
IC6521
CPH
Q6520
PHOTO COUPLER
FET DRIVER
Q6521
CPH
1
4
Q6502
2
7
VSET INSERT
4
Q6530
VSET perfect
PC6503
IC6541
PHOTO COUPLER
FET DRIVER
Q6541
CEL
Q6503
1
7
2
7
VSET2 INSERT
4
Q6551
SCSU
Q6552
4
6
CEL
VSCN gen.
IC6542
FET DRIVER
VAD INSERT
Q6504
Q6553
2
4
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
FCLD
6
FCLU
4
FCLKD
8
FCLKU
10
PROU
9
8
PROD
11
10
VSCN
TPSC1
(Vfo)
VSET REG.
Q6491
IC6491
VSUS
Q6492
VSET
Q6522
Q6529
CPH
VSCN GEN VSET
Q6461
T6461
Q6462
IC6456
CEL
Q6542
Q6463
PC6517
IC6453
IC6455
Q6549
VSCN GEN VSET
AVR 15V
AVR 5V
Q6451
IC6451
3
1
3
Q6454
IC6452
Q6554
VAD GEN
Q6471
IC6471
Q6472
IC6472
Q6555
Q6474
PC6474
VAD
SCSU
T6471
TPSC1 WAVEFORM
VSET
VSUS
VAD
VSCN
VSET2
TH-37/42PWD8 SERIES
SC-Board Block Diagram
TO SD42
SC42
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
TO SD46
SC46
FSID
2
4
FCLD
6
FCLKD
8
PROD
9
VF5V
10
VF5V
TO SU45
SC45
FSIU
2
4
FCLU
6
FCLKU
8
PROU
9
VF5V
10
VF5V
SC41
TO SU41
A1
B1
Vfo
Vfo
A8
B8
A11
B11
Vf
Vf
A33 B33
A40
B40
VF5V
A34
B34
1
VF5V
A35
B35
PROU
A36
B36
PROU
FCLKU
A37
B37
FCLKU
FCLU
A38
B38
FCLU
FSIU
A39
B39
FSIU
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This manual is also suitable for:
Th-42pwd8ws
Th-37pwd8wk
Th-37pwd8ws
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