Sc-Board (1 Of 2) Block Diagram - Panasonic TH-42PZ77U Service Manual

15.55. SC-Board (1 of 2) Block Diagram

Vsus
TPVSUS
P2 SC2
+210V
Vsus 1
IC6561
SC BUFFER
D20
20
VCC
P5V 1
OC1A(CL)
SIDA
SIUA
CLK
CLK 2
CEL2(OC2)
SIUB/LAT
CERS(CBK)
SCSU
CLK
SCSU
SCSU 4
IC6562
CPH2
CPH2 5
BUFFER
CEL
CEL 7
VCC
CPH1
CSL
CSL 9
CML
CML 10
CEL
SIUB/LAT
SIUB/LAT 11 CSL
CSOU
CSOU 12
CSH
CPH1
CPH1 13 CML
CQR(CPL)
CQR(CPL) 14
CERS(CBK)
CERS(CBK) 15
CMH
OC1A(CL)
OC1A(CL) 16
SIUA
SIUA 17
2G
SIDA
SIDA 18
CEL2(OC2)
OC2(CEL2) 19
IC6563
DRV_RST0 22
BUFFER
CSH 24
CMH 25 VCC
CSOU
SCSU
CQR(CPL)
SIDB 26
OC1B(CL2)
OC1B(CL2) 27
SIDB
CLK
SCSU
SC FLOATING PART SOS DET
TPSOS6
LED BLINKING
SOS6_SC1 6
SC FLOATING PART SOS DET
TPSOS7
LED BLINKING
SOS7_SC2 21
P+15V
P15V 30
P15V 31
TPSC1 WAVEFORM
VSET
VSUS
VSCN
VSET2
SC SCAN DRIVE
TH-42PZ77U
SC-Board (1 of 2) Block Diagram
P+15V
VSET0
VSET:365V
TPVSET
+365V
VSET Gen.
100k 4
P+15V
D6825
(+33V)
OC1U1(CL)
R6833
OC1D1(CL)
IC6821
SIUA Q6824
Q6821,Q6822
R6831
Vset SOS DET
CLKA
283V OR LESS
CEL2(OC2)
SIUB/LAT
CERS(CBK)
SCNSOS_OUT1
P+5V
CPH
CPH
CPH2
CEL
CSL Vsus Gen.
CSH
IC6501
CML
Q6501-Q6504
Q6401-Q6405
Q6521-Q6524
CMH HO
P+15V
DRV_RST0
FET
CMH Q6421-Q6425
HIN DRIVER
CML
LIN LO
CSOU
SCSU
VSET2_SEL
OC1U2(CL2)
ENERGY RECOVERY
DC1D2(CL2)
CLKB IC6521
SCNSOS_OUT2
Q6531,Q6532
Q6442-Q6444
Q6551,Q6552
HO
P+15V
CSH FET
HIN Q6451-Q6453
DRIVER
CSL
LIN
LO
D6583
LED(G)
D6582
P+15V D6583
COMPARATOR
IC6581 R6581
Q6581
VSET SOS
6 TIMES D6585
D6826
7 TIMES
+5V(SC2)SOS
D6480
MAIN_STOP
IC6472
DRV_RSTO
B
Y
A
VAD
+16V
DC/DC +16V
CONVERTER
C6791
C6795 C6796
VAD
IC6791
FLOATING GND
COLD
D6725
VF_GND1
IC6721
OC1U1(CL)
PC6701 +5V
OC1D1(CL) FOC1U1
FOC1D1
CLKA BUFFER FCLKU1
OC1U1(CL)
FGLKD1
PHOTO
COUPLER CSOU
OC1D1(CL)
CSOU
GND
IC6722
P+5V
SIUA SIUA
+5V
PHOTO FSIU1
CLKA COUPLER
FSID1
CEL2(OC2) BUFFER OC2B
FOC2U1
PC6702
GND FOC2D1
D6722
IC6872
VSET2-SEL
PHOTO
D6479
COUPLER VSET3
P+15V
Q6742,Q6743
VSET2
PC6703
BUFFER
D6478
P+5V
CEL2(OC2)
PHOTO
COUPLER
CERS(CBK) CERS(CBK)
INIT-F
VSET SEPA
CSOU Q6601
Q6602,Q6603
IC6752
FET
P+15V
BUFFER
OUT
VCC HO
CPH Q6622-Q6626
HIN FET Q6763
CPH2
FET
LIN LO
BUFFER
OUT
GND
COLD FLOATING GND
D6795 +15V-F2
IC6796 IC6795
+5V-F2
+5V(SC2) AVR AVR +5V(SC1)
+5V +5V
1 3 3 1
(SC1) (SC2)
+5V
+5V-F2
PC6707 2 2
VF-GND2 IC6793
+5V
OC1U2(CL2) OC1U2(CL2)
PHOTO
COUPLER
OC1D2(CL2) OC1D2(CL2) BUFFER
GND
P+5V
IC6794
+5V
SIUB/LAT
PHOTO
CLKB COUPLER
BUFFER
PC6708
GND
PC6709
OC2B
PHOTO
COUPLER
VF-GND1
AVR IC6771
PC6705 +5V
+16V
+5V
1 3
(SC3)
CEL +5V(SC3)
2
CEL
B
PHOTO
SCSU COUPLER A
SCSU
BUFFER
IC6773
IC6774
VSET
VSUS TPVERS
T6602
IC6803 D6806
9
D6807
7 10
VCC
PC6801
6 11
GND VAD Gene
12
( 140V)
OSC
D6882
4 13 VR6600 Adj
Vin
D6883
D6804
2 15
F/B
D
-140V
TPVAD
132.7 -
PC6801
PHOTO
COUPLER
D6805
119
D6721
+15V-F1
IC6725 IC6724
+5V(SC2)
+5V(SC1)
+5V-F1
+5V
AVR AVR
+5V-F1
+5V +5V
1 3 3 1
(SC1) (SC2)
2 2
VSCN SUPERIMPOSED
IC6672 Q6648,Q6649
Q6691,Q6692 Q6651-Q6654
VCC HO BUFFER FET
FET OUT
CEL2
IN
DRIVER Q6694 Q6695,Q6696
LO BUFFER
GND FET
OUT
Vsus
Verase
Q6609
IC6601 BUFFER
Q6604
Q6605,Q6606
VCC FET
HO BUFFER
OUT
FET
IN
DRIVER
GND
D6699
FOC1U2
FOC1D2
FCLKU2
FCLKD2
FSIU2
FSID2
FOC2U2
FOC2D2
Y
VSE2
VSE3
147.8
TH-42PZ77U
SC-Board (1 of 2) Block Diagram
TH-42PZ77U
5V_F1
1
VF-GND2
2
3
VF-GND1
4
5V_F2
5
6
VAD
7
8
+16V
9
+15V-F1
10
11
12
13
14
P+5V
15