Panasonic TH-37PD25U-P Service Manual page 230

15.57. SC-Board Block Diagram
SC
TO D20
SC20
CSL
17
CSH 18
CBK 14
CMH 20
CML 19
CEL 13
CPH 9
CEL2 8
CL 2
CLK 3
SIU
4
SID 6
SCSU
7
SOS1
11
SOS2 12
TO P2 SC2
VSUS 1
VSUS 2
TO P23
SC23
+15V 1
+15V 2
TH-37/42PD25U/P
SC-Board Block Diagram
Scan Drive
IC6605
BUFFER
6 14
IC6607
AND GATE
4A
8 12 12
4Y
11
4B
13
1A
4 16 1
1Y
3
1B
2
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
D6624
Q6621
S
12 8
D
1/2 Vo
S
CSL
14 1
Q6624
D
D6629
Vsus GEN.
IC6601
S2 CMH
FET DRIVER
Q6611 Q6601
Q6612 Q6602
12 8
S3 CML
14 1
Q6613
Q6605
Q6614 Q6606
Vbk GEN.
IC6603
VBK GEN
FET DRIVER
Q6671 Q6673
14
Q6672 IC6604
Q6641
12 8
Q6642
Q6603
Q6604
IC6581
Q6581
SCAN DRIVER 2
SOS BLINKING TIMES LED 7 TIMES
:
COLD CHASSIS GROUN
L6611,12
L6615,16
VSUS
VSUS
D6583
(RED 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
PH
CL
PH
CLK
PH
SIU
PH
SID
PH
CEL2
PH
CPH
PH
CEL
PH
SCSU
D6459
D6470
D6468
D6479
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