Read Panasonic TH-42PZ70B / TH-42PZ70E / TH-42PY70F / TH-42PY70P Service Manual online
15.62. SC-Board (2 of 2) Block Diagram
+
D6871
D6705
D6836
D6879
D6475
D6665
D6476
D6860
D6834
+5V_F2
+15V_F2
D6697
D6872
D6706
D6838
P+15V
D6839
CPH
D6846
D6690
VR6602
1
2
3
D6833
TPSC1
D6844
D6873
+5V_F1
D6792
D6801
D6691
B4
Q6841,Q6842
B8
VSCN Gen.
Vf
VR6841
A6
Q6661
VSCN-F2
B6
Vscn-F1
Vscn-F2
DRIVER
SOS7_SC2
VF_GND2
LO
Vfo(F1)
Vscn_F2
D6859
Vscn_F2
FSID1
+5V_F2
VCC
GND
+5V_F2
BUFFER
A11
B1
Q6680
B11
A5
A8
Vf
4
14
7
A34
Q6679,
46
Vfo
+5V(SC3) SOS DET
+5V_F1
B30
Q6805,Q6806
B34
9
1
P+5V
A32
10
SCAN_PHASE 1
B32
SD46
FET
+5V(F1) SOS DET
R6696
PHOTO
COUPLER
COUPLER
Vscn_F1
+5V_F2
P+5V
+5V_F1
15
6
<Vsus+Vad>
SCNSOS_CUT1
FOC1D1
<Vsus-Vscn+Vset>
SC
SCNSOS_CUT2
8
OUT
FOC2D2
BUFFER
BUFFER
2
Q6665
Q6700
FCLKD2
BUFFER
B31
4
Vfo
1
Vf
FOC1D2
VCC
B35
Q6781,
Q6782
Q6782
FSID1
5
A30
BUFFER
FSID2
FET
Vscn(F2) SOS DET
IN
A33
FCLKD1
DRIVER
HO
B33
FOC2D1
+15V
+5V_F1
12
B37
GND
A31
DRIVER
Vscn_F1
LO
IN
FET
IN
FOC1D1
OUT
FCLKD1
OUT
Q6671,Q6672
FOC2D1
VF_GND1
FOC2D2
Q6698,Q6699
FCLKD2
SCAN_PHASE 2
FOC1D2
C6841
FSID2
FET
VAD
R6759
FET
COMPARATOR
VAD SOS DET
Vfo(F2)
10
ERROR
DET
DET
(+145V)
SCSU
Q6690
TPVSCN
Q6792
Q6793
B1
BUFFER
A37
R6892
Vf
21V OR MORE
R6888
INIT-F
Vf
R6887
+16V
LO
VAD SUPERIMPOSED
30
Vf
Vad:
120V OR MORE,
158V OR LESS
VAD
A10
GND
A35
SC
A40
Q6641-Q6646
B40
BUFFER
A1
PHOTO
COUPLER
COUPLER
SC44
B5
PHOTO
COUPLER
COUPLER
B36
Vf
PHOTO
COUPLER
COUPLER
A36
PHOTO
COUPLER
COUPLER
Vf
A40
Vfo
A1
B9
A4
ERROR
DET
DET
A7
Q6662
HO
B7
Vfo
3
A9
Q6791
B40
SC43
FET
PHOTO
COUPLER
COUPLER
VAD CONT
B10
COMPARATOR
VSCN-F1
PC6480
PC6871
PC6862
PC6710
PC6706
PC6711
IC6797
IC6871
IC6792
IC6471
IC6772
IC6873
IC6671
D37
D1
D72 D32
D70
D71 D31
D33
D40
D30
D73
D34
D41
D77
D36
SD44
D80
D76
D35
D75
D74
C6
C45
C41
C4
C47
C46
C1
C9
SD43
C49
C48
C10
C80
C8
C50
C7
C11
C51
C44
C40
C5
B74
A8
B30
B8
B37
+5V_F1
B35
A9
B77
B76
B31
B72
FOC1U1
B33
B40
9
15
B70
SC
B41
FCLKU1
B4
SU42
B34
B1
B73
B71
A33
A10
12
B1
B7
B40
SC41
A6
A30
A7
B1
A1
SC42
SU45
Vf
B31
45
A4
A31
A1
5V_F2
Vfo
A5
B30
SU41
A50
B9
A40
A10
Vfo
10
B10
A1
+5V_F1
Vf
A49
B11
A4
A11
6
A47
Vf
VF-GND2
A7
FSIU1
Vscn-F1
A48
A9
A41
Vf
A46
A45
A6
A8
5V_F1
A11
FOC2U1
B34
A80
B6
FCLKU1
Vf
A44
FOC1U1
A34
A51
FSIU1
A35
FOC2U2
B35
14
7
FOC1U2
Vscn-F2
5V_F1
2
FOC1U2
A36
4
FSIU2
B36
B5
1
FCLKU2
B37
FSIU2
FOC2U2
Vfo
FCLKU2
A37
Vf
A32
Vf
B33
+5V_F2
A5
B40
A40
Vfo
B32
B80
Vscn-F2
B75
+5V_F2
FOC2U1
B36
Vscn-F1
A40
B32
Vf
5V_F2
+5V_SOS
SOS7_SC2
14
10
4
1
2
13
12
11
7
9
15
3
5
6
8
P+5V
VF-GND2
VF-GND1
5V_F1
5V_F2
+15V-F1
+16V
VAD
SCAN DRIVE
SC
TH-42PY70F/P, PZ70B/E
SC-Board (2 of 2) Block Diagram
SC-Board (2 of 2) Block Diagram
TH-42PY70F/P, PZ70B/E
SC-Board (2 of 2) Block Diagram
SC-Board (2 of 2) Block Diagram
FLOATING GND
COLD
TH-42PZ70B / TH-42PZ70E / TH-42PY70F / TH-42PY70P
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