Read Panasonic TH-42PW4 / TH-42PWD4 Service Manual online
13.46. SU/SD Block Diagram
Vf
IC6401/IC6405
FSI
B40 A40
B39 A39
FCLK
SCAN OUT PUT PULSE
FCL
PRO
SC41/SC43
To 1st 80 pins of
Vf5
SCAN ELECTRODES
B18 A18
B17 A17
FSI 31 11
FCL 32 12
Vf0
FSO1
Vf
FCLK 33 13
IC6402/IC6406
VCC FOR SIFT RESISTORS
PRO 34 14
FSI
35 15
B1
A1
36 16
FCLK
37 17
FCL
B40 A40
Vf0
B39 B39
50 30
PRO
Vf5
SC42/SC44
B25 A25
71 51
FSO2
B24 A24
SU/SD BOARD GROUND VOLTAGE (FLOATING GROUND)
Vf0
Vf0
To 2ND 80 pins of
Vf
SCAN ELECTRODES
80 60
IC6403/IC6407
81 61
FSI
Vf
FCLK
90 70
ADDRESS
FCL
B2
A2
(SCAN)
B1
A1
PERIOD
PRO
Vf5
B40 A40
FSO3
Vf0
B33 A33
Vf
B32 A32
IC6404/IC6408
FSI
To 3rd 80 pins of
SCAN ELECTRODES
FCLK
FCL
PRO
Vf5
B1
A1
Vf0
SU1/SD1
SU2/SD2
SU3/SD3
64 PIN
OUTPUT
77
100
76
75
1
64 PIN
OUTPUT
77
100
76
75
1
64 PIN
OUTPUT
77
100
76
75
1
SIFT RESISTOR
81,83
78,79
85
91
86
89
90
85
48 PIN
OUTPUT
85
91
86
89
90
85
SIFT RESISTOR
81,83
78,79
85
91
86
89
90
85
SIFT RESISTOR
81,83
78,79
85
91
86
89
90
85
Vf5V
Q6401
Vf
Vf0
Vf5V
5 V
0 V
0 V
0 V
Note:
75
14
74
73
15
81,83
SIFT RESISTOR
78,79
SU / SD
TH-42PW4 / TH-42PWD4
115
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