L0171WF4
9-4
Input: NTSC Color Bar Signal (with 1kHz Audio Signal)
WF21 ~ WF32 = Waveforms to be observed at
Waveform check points.
(Shown in Schematic Diagram.)
STV1
1V
CLKV
1V
10
µ
s
20
µ
s
WF27
Pin 16 of CN321A
(LCD MAIN)
WF28
Pin 24 of CN321A
(LCD MAIN)
5ms
VCOM
2V
20
µ
s
WF26
Pin 17 - 20 of CN311A
VREF(11)
1V
WF25
Pin 12 of CN311A
(LCD MAIN)
20
µ
s
VREF(10)
1V
WF24
Pin 11 of CN311A
(LCD MAIN)
VREF(5)
1V
WF21
Pin 8 of CN311A
(LCD MAIN)
20
µ
s
VREF(7)
1V
WF22
Pin 9 of CN311A
(LCD MAIN)
20
µ
s
VREF(8)
1V
WF23
Pin 10 of CN311A
(LCD MAIN)
20
µ
s
XDON
1V
STV4
1V
20
µ
s
WF29
Pin 25 of CN321A
(LCD MAIN)
WF30
Pin 26 of CN321A
(LCD MAIN)
5ms
WF31
Pin 29 - 30 of CN321A
(LCD MAIN)
(LCD MAIN)
VCOM
2V
20
µ
s
WF32
Pin 1 - 2 of CN401,CN402,
CN403,CN404
(MAIN CBA)
50V
10
µ
s
CN401
CN402
CN403
CN404