Table of Contents
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SC
Scan Drive
IC6605
TO D20
BUFFER
SC20
CSL
17
6
14
IC6607
AND GATE
4A
CSH
18
8
12
12
4Y
11
4B
13
1A
CBK
14
4
16
1
1Y
3
1B
2
3A
CMH
20
15
5
9
3Y
8
3B
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
SCSU
7
17
3
SOS1
11
SOS2
12
TO P2
SC2
VSUS
1
VSUS
2
TO P23
SC23
+15V
1
+15V
2
TH-37PA30E/TH-42PA30E
SC-Board Block Diagram
ENERGY RECOVERY
IC6602
FET DRIVER
CSH
D6624
Q6621
S
12
8
D
1/2 Vo
S
CSL
14
1
Q6624
D
D6629
Vsus GEN.
IC6601
S2 CMH
FET DRIVER
VSUS
Q6611
Q6601
Q6612
Q6602
12
8
S3 CML
14
1
Q6613
Q6605
Q6614
Q6606
Vbk GEN.
IC6603
VBK GEN
FET DRIVER
Q6671
Q6673
VSUS
14
Q6672
IC6604
Q6641
12
8
Q6642
Q6603
Q6604
D6584
IC6581
Q6581
SCAN DRIVER 2
SOS BLINKING TIMES
:
LED 7 TIMES
+5V(SC1),+5V(SC3)
Vscn,VAD(-90V)LINE
VOLTAGE DOWN DET
SCAN DRIVER 1
SOS BLINKING TIMES
COLD CHASSIS GROUND
FLOATING GROUND
IC6501
IC6505
BUFFER
PHOTO COUPLER
CL
3
5
1
L6611,12
IC6506
L6615,16
13
PHOTO COUPLER
CLK
3
5
IC6507
IC6502
PHOTO COUPLER
BUFFER
SIU
3
5
1
IC6508
PHOTO COUPLER
SID
3
5
3
IC6509
PHOTO COUPLER
5
CEL2
3
5
VSCN perfect
IC6511
FET DRIVER
Q6501
2
Q6476
Q6477
VSET perfect
(VSET rise)
IC6510
IC6521
FET DRIVER
PHOTO COUPLER
CPH
1
5
Q6502
2
VSET perfect
IC6503
IC6541
PHOTO COUPLER
FET DRIVER
CEL
Q6503
1
5
2
VSCN gen.
D6583
(RED LED)
IC6504
IC6542
SCAN
DRIVE
PHOTO COUPLER
FET DRIVER
SCSU
1
5
Q6504
2
IC6458
D6459
PHOTO
+5V(SC1)
COUPLER
IC6469
D6470
PHOTO
+5V(SC3)
COUPLER
IC6467
LED 2 TIMES
:
D6468
Vscn(VAD+118V=28V)
PHOTO
COUPLER
IC6458
D6479
PHOTO
VAD(-90V)
COUPLER
COLD CHASSIS GROUND
FLOATING GROUND
FCLD
2
5
6
FCLU
3
4
FCLKD
12
9
8
FCLKU
11
10
FSIU
2
FSID
4
PROU
6
9
8
PROD
11
10
VSCN
SC
Q6511
7
SC
4
Q6512
VAD+15V
VSET REG.
Q6491 Q6492
VSUS
IC6491
CPH
VSET
Q6520
Q6521
7
VSET INSERT
Q6522
Q6530
4
Q6527
CPH
(VSET decay)
VSCN GEN VSET
Q6461
Q6462
Q6463
IC6517
CEL
Q6542
T6461
IC6456
Q6541
IC6453
Q6547
VSCN GEN VSET
7
VSET2 INSERT
15V
Q6451
T6451
4
Q6551
Q6452
IC6434
3
Q6454
IC6451
Q6552
Q6455
IC6452
CEL
Q6554
VAD GEN
Q6471
T6471
VAD INSERT
Q6472
IC6471
4
Q6553
Q6555
Q6474
IC6472
VAD
SCSU
IC6474
Q6475
TPSC1 WAVEFORM
VSET
VSUS
VAD
VSCN
VSET2
SC44
TO SD44
FSID
FSID
A1
B1
FCLD
A2
B2
FCLD
FCLKD
FCLKD
A3
B3
PROD
A4
B4
PROD
VF5V
A5
B5
VF5V
A6
B6
A7
B7
Vf
Vf
A20
B20
TO SD46
SC46
2
FSI
4
FCL
6
FCLK
8
PRO
VF5V
9
10
VF5V
TO SD43
SC43
A1
B1
Vf
Vf
A10
B10
VSCN
VSCN
A11
B11
VSCN
A12
B12
TPSC1
A13
B13
Vfo
Vfo
(Vfo)
A20
B20
TO SU45
SC45
2
FSI
FCL
4
6
FCLK
8
PRO
VF5V
9
10
VF5V
SC41
TO SU41
FSIU
A20
B20
FSIU
FCLU
A19
B19
FCLU
FCLKU
FCLKU
A18
B18
IC6455
PROU
A17
B17
PROU
5V
VF5V
A16
B16
1
3
1
VF5V
A15
B15
A14
B14
Vf
Vf
A1
B1
TO SU42
SC42
A20
B20
Vf
Vf
A11 B11
VSCN
A10
B10
VSCN
VSCN
A9
B9
A8
B8
Vfo
Vfo
A1
B1
TH-37PA30E/TH-42PA30E
SC-Board Block Diagram
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