Panasonic TH-42PH9WK Service Manual page 103

14.43. SC, SU and SD-Board Block Diagram
SC SCAN DRIVE
VSUS
TO P2 SC2 VSET
TPVSUS
VSET Gen.
Vsus 1
Vsus 2
IC6821
Q6821,Q6822
SC
TO P23
23 TP15V
+15V 1
+15V 2
IC6561,6562
SC
TO D20 BUFFER
20
P+5V 1 VCC
CL
CL 2
CLK
CLK
3
BUFFER
SIU
SIU 4
SID
SID 6
SCSU
SCSU 7
CEL2
CEL2 8
Vsus Gen.
CPH1
CPH 9 IC6501
CPH2
Q6511,Q6512
CEL
Q6401-Q6403
CEL 13
Q6616,Q6617
CSL
CSL 17 VCC HO
BUFFER
CSH
HIN
CSH
18 FET
Q6421-Q6423
CML LIN
DRIVEB
CML 19
VDD
CMH LO
CMH 20
SC_SOS6 11 VCC
SC_SOS7 12
ENERGY RECOVERY
IC6521
Q6531,Q6532
Q6441,Q6442
Q6551,Q6552
VCC HO
HIN FET
Q6451,Q6452
LIN DRIVER
VDD
LO
VCC
IC6581
Q6581
COMPARATOR
D6585
TPSOS6 ENERGY RECOVERY SOS DET
LED BLINKING : 6 TIMES
TPSOS7 SC FLOATING PART SOS DET
LED BLINKING : 7 TIMES
TH-42PH9WK/WS
SC, SU and SD-Board Block Diagram
COLD FLOATING GND
IC6725
IC6724
TPVSET
(+260V) +5V(SC2)
+5V(SC1)
AVR AVR
+5V +5V
1 3 1 3
(SC1) (SC2)
GND GND
2 2
PC6701
IC6721
CL VCC
CL
PHOTO BUFFER
COUPLER
CLK
CLK
GND
SIU
PHOTO
SIU VCC
COUPLER
SID
SID
BUFFER
CEL2
PC6702
GND
VSET SLOPE
PC6703
OUTFET IC6601
CEL2
VCC
PHOTO
OUTFET
CPH2
FET
COUPLER IN
DRIVER
GND
IC6751
VSET SEPARATE
IC6752
+5V(SC3)
PC6704
15V
AVR
+5V
1 3 VCC
PHOTO (SC3)
CPH1
COUPLER GND
IC6753
IN
2
DRIVER
L6401
GND
L6403
OUTFET
L6411
IC6771
L6413
16V_F
OUTFET
AVR
PC6705
+5V(SC3)
+5V
1 3
(SC3)
CEL
GND
2
PHOTO
SCSU
COUPLER
D6583
LED(G)
COLD FLOATING GND
IC6841
T6602
D6841
Q6841,Q6842
D6806 VSET
VSCN Gen.
VSUS
Q6801
Q6802
15V
Q6804
IC6801
POWER OSC
D6804 Q6803
VAD Gen.( 105V )
VR6600
PC6801
Adj.
PHOTO
COUPLER
IC6610
PC6480
D6480
PHOTO 15Vf
COMPA-
COUPLER RATOR
PC6760
D6760
PHOTO
+5V(SC3)
COUPLER
PC6861 IC6861
D6862
PHOTO COMPA- Vscn(VAD+140V)
RATOR
COUPLER
PC6871 IC6871
D6872
PHOTO COMPA- Vad( 105V)
COUPLER RATOR
16V_F
D6826
VSET
TPSC1 SIGNAL WAVE
VSET
IC6791
DC/DC CONV.
16V_F 15V
VSUS
VOUT VIN
COM
VAD
VSCN
VSET2
15V_F
D6421
Vad 105V
FCLU
FCLD
FCLKU
FCLKD
(Vf+5V)
FSIU
FSID
VSCN SUPERIMPOSED
PROU
IC6681 (Vscn)
Q6681
PROD
Q6691
IC6722 VDD
HO
FET OUT
(Vfo)
FET
IC6682
IN
Q6682
DRIVER
LO
GND FET OUT
TPSCI
Q6601,Q6602
FET
HO
OUT
D6620
Q6762 Q6621
Q6622,D6621
D6623,D6624
FET
FET
LO
OUT Q6641,Q6642
VAD SEPARATE
Q6644,Q6645
Q6647,Q6648
IC6772
Q6781 FET
OUT
Q6782
VCC HO
FET
IN
VAD SLOPE
DRIVER
GND LO Q6661-Q6663
FET
IC6773 OUT
VAD CONT
IC6774
IC6671
Q6671,Q6672
Q6680
VCC
FET
LO
FET
IN OUT
DRIVER
GND
TPVSCN
(+140V)
D6859 D6860
TPVAD
(Vad 105V)
IC6802
VSET2 Gen.
FOR
SC30
(+8V)
FACTORY
USE
8
4
1
Q6743
Q6742
5V
R6833
R6839
R6834
R6835
R6836
D6825
Q6824
R6838
R6837
VSETSOS DET
103
SU SCAN OUT (UPPER)
SI
VDDH
VDD IC6901
SC SU
64
45 45 CLK
CL
FSIU S/P
1 1
PRO
FSIU 64bit
FCLU
GND SO
3 3
FCLU
FCLKU
5 5
FCLKU SI
VDDH
PROU
32
7 7
VDD IC6902
PROU
Vf+5V
8 8 CLK
CL
Vf+5V S/P 32
9 9
PRO
64bit
GND SO
SI
SC41 SU41 VDDH
VDD IC6903
Vf+5V
64
A35 B35 A6 A46 CLK
CL
Vf+5V
S/P
A34 B34 A7 A47
PRO
64bit
Vf
GND SO
A39 B39 A2 A42
Vf
A36 B36 A5 A45 VDDH SI
Vf
VDD IC6904
A33 B33 A8 A48
64
CLK
CL
Vf S/P
A11 B11 A30 A70
PRO
Vscn 64bit
A10 B10 A31 A71 GND
SO
Vscn
A9 B9
A32 A72
Vfo
VDDH SI
A8 B8 A33 A73
32
VDD IC6905
Vfo
CLK
A1 B1 A40 A80
CL
S/P 32
D6903
PRO
D6904 64bit
GND
SO
SI
VDDH
VDD
IC6906
64
CLK
CL
S/P
PRO
64bit
GND
SI
VDDH
VDD
IC6951
SC SD
64
46 46 CLK
CL
FSID FSID S/P
1 1
PRO
64bit
FCLD FCLD GND SO
3 3
FCLKD FCLKD
5 5
SI
VDDH
PROD PROD
32
7 7 VDD
IC6952
Vf+5V
8 8 CLK
CL
Vf+5V S/P
32
9 9
PRO
64bit
GND
SO
SI
SC42 SD42 VDDH
VDD
IC6953
Vf+5V 64
A6 B6 C35 C75 CLK
Vf+5V CL
S/P
A7 B7 C34 C74
PRO
64bit
Vf GND
SO
A2 B2 C39 C79
Vf
A5 B5 C36 C76
VDDH SI
Vf VDD
IC6954
A8 B8 C33 C73
64
CLK
CL
Vf S/P
A30 B30 C11 C51 PRO
Vscn 64bit
A31 B31 C10 C50 GND
SO
Vscn
A32 B32 C9 C49
Vfo
C8 VDDH SI
A33 B33 C48
32
VDD
IC6955
Vfo
CLK
A40 B40 C1 C41
CL
S/P 32
D6953
PRO
D6954 64bit
GND
SO
VDDH SI
VDD
IC6956
64
CLK
CL
S/P
PRO
64bit
GND
SD SCAN OUT (LOWER)
TH-42PH9WK/WS
SC, SU and SD-Board Block Diagram
TH-42PH9WK / TH-42PH9WS
SU1
96
LINE
SU2
96
LINE
PANEL
SCAN
SU3 ELECTRODES
384LINE
96
(UPPER)
LINE
SU4
96
LINE
SD1
96
LINE
SD2
96
LINE
PANEL
SCAN
ELECTRODES
SD3
384LINE
96 (LOWER)
LINE
SD4
96
LINE