TH-37PW4, TH-37PWD4 - Panasonic Plasma Service Manual (repair manual). Page 106

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13.41. SC-Board Block Diagrams
  SC41
from
IC6501
P2
FSIU
CL
Vsus
1
FCLU
2
To SC44 
Vbk
3
PIN 9, 39
FCLKU
CLK
15V
7
IC6453
IC6454
PROU
To SC44 
PIN 8, 38
SU
  5V
IC6502
from
SID
D20
SC
1
S2
To SC44
GND
IC6605
IC6601
PIN 20, 40
CMH
9
  SC44
1
S3
To SC44
21
PIN 17, 37
CML
8
14
15 34
16 35 SD
CEL
36   5V
17
 
IC6602
37 PROD
18
 
CSH
7
38 FCLKD
9
 
 
39 FCLD
20
1/2 Vo
S1
VAD
40 FSID
VSET
CSL
6
SC42
CPH
1
IC6603
21 SC
GND
SOS
1
Vbk
10
INITI.
11 30
DRIVE
31
CBK
2
CEL
3
SID
20
40
SC43
IC6606
1
from
21
D21
5V
1
10
11 30
CL
2
31 SC
CLK
3
GND
SIU
4
20
SID
6
40
CPH
9
SCSU 7
VAD
5V
18
2
12
14
8
1
Q6627
Q6628
 Q6621
 Q6622
 Q6623
Q6613
Q6614
Q6601
Q6602
Q6603
Q6604
8
12
12
16
12
14
8
1
15
17
2
8
13
6
7
12
5
1
4
18
3
3
1
1
2
3
 Q6611
 Q6612
 Q6605
 Q6606
 Q6607
 Q6608
Q6624
Q6625
Q6626
Q6629
Q6630
4
6
14
14
SC20
SC21
Q6645
Q6646
Q6641
Q6642
8
11
9
SC22
3
4
2
5
6
13
11
10
12
9
8
1
2
3
11
10
4
9
8
Q6511
Q6530 / Q6522  Q6523
 Q6524  Q6525
Q6526  Q6527
Q6528  Q6529
Q6553/Q6554 Q6555 Q6556
15V
1
2
3
IC6581
Q6581
1/2 Vo  SOS
DISCHARG
CHARGE
Q6650
D6467
VSCN  SOS
VSCN
from TPSCN
 
 
 
 
 
 
 
 
 2
12
 3
 7
IC6521
LOGIC
H in
L in
H out
L out
 2
12
 3
 7
IC6511
LOGIC
H in
L in
H out
L out
5
PHOTO
COUPLE
D6505
5
3
PHOTO
COUPLE
D6506
5
3
PHOTO
COUPLE
D6508
5
VSUS
VSET
Q6491/Q6492
IC6491
15
VSCN GEN.
Q6512
3
PHOTO
COUPLE
D6501
5
Q6476
Q6477
3
PHOTO
COUPLE
D6502
5
Q6520 / Q6521
 2
12
 3
 7
IC6541
LOGIC
H in
L in
H out
L out
3
PHOTO
COUPLE
D6503
5
Q6541 / Q6542  Q6543
Q6544  Q6545
Q6546  Q6547
Q6550 / Q6548  Q6549
Q6551 / Q6552
3
PHOTO
COUPLE
D6504
5
 2
12
 3
 7
IC6542
LOGIC
H in
L in
H out
L out
VAD GEN.
Q6451                 Q6454
Q6452   T6451  IC6451
Q6453  IC6452
Q6471                 Q6474
Q6472   T6471  IC6471
IC6472
SCSU
Q6671
VSET2 INSERT
VAD INSERT
VSET
TPSC1
SC GND
SC GND
MIX
SC
6
 DO NOT MEASURE DC VOLTAGE BY
FROATING GROUND
COLD CHASSIS GROUND
SC
TH-37PW4 / TH-37PWD4
106
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