Toshiba 42WP16A, Service Manual

Page: 123 / 129

12.40. 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
98