Sc, Su And Sd-Board Block Diagram - Panasonic TH-42PX75U Service Manual

TH-42PX75U

15.40. SC, SU and SD-Board Block Diagram

SC SCAN DRIVE
SC2 VSUS
TO P2
192V
Vsus 1
Vsus 2
TPVSUS
IC6561,6562
SC
+5V
TO D20 BUFFER
20
R6466
R6467
+5V 30 VCC
R6468
D6466
OC1
OC1 29
CPH2 28
BUFFER
CLK
CLK 26
SIU
SIU 25
SID
SID 23
SCSU
SCSU 22
Vsus Gen.
OC2
OC2 20
IC6501
CPH1
CPH1 19
Q6501,Q6502
CPH2
Q6521,Q6522
CEL
VCC HO
CEL 13
CSL HIN
FET
CSL 9
BUFFER LIN
CSH DRIVER
CSH 8
VCC2
LO
CML
CML 6
CMH
CMH
5
SS_DRV_RST
11
+5V VCC 2G
SOS6_SC1 16 ENERGY RECOVERY
SOS7_SC2 15
IC6521
Q6531,Q6532
Q6551,Q6552
VCC HO
HIN
FET
LIN DRIVER
LO
+15V
+15V 3
+15V 2 TP15V
+15V 1
VCC
IC6581
Q6581
COMPARATOR
D6585
ENERGY RECOVERY SOS DET
TPSOS6
LED BLINKING : 6 TIMES
IC6471
TPSOS7
AND GATE
+5V
SS_DRV_RST
5 VCC IN_B 1
D6480
4 OUT_Y IN_A 2
SC FLOATING PART SOS DET
LED BLINKING : 7 TIMES
TH-42PX75U
SC, SU and SD-Board Block Diagram
COLD FLOATING GND
IC6791
15V DC/DC CONV. +16V_F
VIN VOUT
GND COM
Vad 105V
IC6724
IC6725
+5V
+5V_F
+5V_F
AVR AVR
1 +5V 3 1 +5V 3
COM COM
2 2
PC6701
IC6721
+5V
OC1 VCC
OC1
PHOTO
BUFFER
COUPLER
CLK
CLK
R6465
GND
SIU
PHOTO
SIU VCC
COUPLER
SID
SID
BUFFER
OC2
PC6702
Q6401-Q6403 GND
OUTPUT
FET IC6722
D
G
D6703
S
PC6704
D6478
Q6421-Q6423
Q6742,Q6743
OUTPUT
FET
D
OC2
PHOTO
G
COUPLER
S
VSET SEPARATE
IC6752
+15V Q6602
Q6441,Q6442 L6401
CPH1 VCC
HO
OUTPUT
L6403 CPH1
FET HIN FET
D
CPH2
LIN DRIVER
G
LO Q6762
VCC2
GND
S
Q6451 L6411
OUTPUT
L6413
FET
D
IC6771
G
S +16V_F
AVR
PC6705 +5V
1 +5V 3
CEL
GND
2 IC6773
IC6774
AND
PHOTO IN_B
SCSU IN_A
COUPLER IN_A
OUT_Y
D6583 IN_B
LED(G)
IC6841
FLOATING GND
COLD
VSCN Gen.
IC6803
POWER OSC
T6602 Q6841
Q6842
D6806 VSET
VCC 4
VSUS
3 GND Z/C 1
VSUS
D6841
5 S
VIN 7
D6804
D 9
F/B
2
PC6801
VR6600
D6805
PHOTO
COUPLER
IC6801
VAD GENE
PC6480 IC6471
+5V_F DET
+5V_F
PHOTO COMPA-
COUPLER RATOR
PC6861 IC6861
D6862 Vscn(VAD+145V)
PHOTO COMPA-
RATOR
COUPLER
PC6871
IC6871
D6872
PHOTO COMPA- Vad( 105V)
COUPLER RATOR
16V_F
VSET
FOR FACTORY USE
6 5 3 1 SC31
TPSC1 SIGNAL WAVE
VSET
VSUS
VAD
VSCN
VSET2
15V_F
D6619
D6721
VSET
FCLU
FCLD Q6821
FCLKU
TPVSET
FCLKD
VSET Gen. (+330V)
Q6822
+15V IC6821
FSIU
FSID
PROU
PROD
(+14V)
TPVSET2
R6815
IC6802
Q6601
VSET2 GENE
OUTPUT
FET
D
G S
Q6621
OUTPUT
Q6642-Q6644
FET
Q6646-Q6648
D
OUTPUT
VAD SEPARATE
FET
G S
D
IC6772
S
G
Q6781,Q6782
VCC HO
VAD SLOPE
FET
IN
Q6661
DRIVER
2
OUTPUT
3 1
GND LO Q6662
FET
AND VR6602 D
VAD CONST
OUT_Y S
G
Q6665
IC6671
Q6679,Q6680
Q6671,Q6672
VCC
OUTPUT
FET
FET
IN D
DRIVER
LO
GND S
G
TPVSCN
R6696
(VAD+145V)
D6859 D6860
TPSC1 R6697
TPVAD
(Vad 105V)
R6861
R6862
R6863
Vscn DET
OPERATES AT
15V_F
160V OR MORE AND
Q6805,Q6806
125V OR LESS.
D6690
D6836-D6838
Q6690 D6839
OFF SET
D6861
R6833
R6834
VAD
R6835
VDA DET
R6836
OPERATES AT 91VOR MORE
D6871 +16V_F D6825
AND 120V OR LESS D2826
D6791 Q6824
Q6791
VSETSOS DET
92
SU SCAN OUT (UPPER)
VAD
VDDH SI
VDD IC6901
SC SU
64
45 45 CLK
CL
FSIU S/P
1 1
PRO
FSIU
64bit
FCLU
GND
3 3 SO
FCLU
FCLKU
5 5
FCLKU
VDDH SI
PROU
32
7 7
VDD IC6902
PROU
Vf+5V
8 8 CLK
CL
Vf+5V
S/P 32
9 9
Vf+5V PRO
64bit
GND
SO
SC41 SU41 VDDH SI
VDD
IC6903
Vf
64
CLK
A40 B40 C40 C80
CL
S/P
PRO
64bit
Vf
GND
A36 B36 C36 C76 SO
Vf+5V
A35 B35 C35 C75
Vf+5V
A34 B34 C34 C74
VDDH SI
Vf
VDD IC6904
A33 B33 C33 C73
64
CLK
CL
Vf S/P
A11 B11 C11 C51
PRO
Vscn 64bit
A10 B10 C10 C50 GND
SO
Vscn
A9 B9 C9 C49
Vfo
A8 B8 C8 C48 VDDH SI
32
VDD IC6905
Vfo
CLK
A1 B1 C1 C41
CL
D6903 S/P 32
PRO
D6904
64bit
D6905 GND
SO
VDDH SI
VDD
IC6906
64
CLK
CL
S/P
PRO
64bit
GND
SI
VDDH
VDD
IC6951
SC SD
64
CLK
46 46
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
SC42 SD42 D6953 VDDH SI
D6954
VDD IC6953
D6955
Vfo
64
B40 A40 A40 A80 CLK
CL
Vf S/P
PRO
Vfo
64bit
B33 A33 A33 A73
GND
SO
Vscn
B32 A32 A32 A72
Vscn
B31 A31 A31 A71
SI
VDDH
Vfo
Vf
VDD IC6954
B30 A30 A30 A70
64
CLK
CL
Vscn Vf S/P
B8 A8 A8 A48 PRO
Vf+5V 64bit
B7 A7 A7 A47 GND SO
Vf+5V
B6 A6 A6 A46
Vf
SI
B5 A5 A5 A45 VDDH
32
VDD IC6955
Vf
CLK
B1 A1 A1 A41
CL
S/P 32
PRO
64bit
GND
SO
VDDH SI
FOR
VDD IC6956
FACTORY
64
SC30 CLK
USE
CL
S/P
PRO
10 Vscn
64bit
GND
8
7 SD SCAN OUT (LOWER)
6 VAD
4 SOS7_SC
CPH1
3
+15V
1 +15V
TH-42PX75U
SC, SU and SD-Board Block Diagram
SU1
96
LINE
SU2
96
LINE
PANEL
SCAN
ELECTRODES
SU3
384LINE
96
(UPPER)
LINE
SU4
96
LINE
SD1
96
LINE
SD2
96
LINE
PANEL
SCAN
SD3 ELECTRODES
384LINE
96
(LOWER)
LINE
SD4
96
LINE