Waveforms - Sharp LC-20AV7U Service Manual

WF1 ~ WF7 = Waveforms to be observed at
Waveform check points.
(Shown in Schematic Diagram.)
Input: NTSC Color Bar Signal (with 1kHz Audio Signal)
Pin 71 of IC1202
WF1
CVBS
Pin 76 of IC1202
WF2
S-VIDEO-Y
Pin 57 of IC1202
WF3
S-VIDEO-C
Pin 75 of IC1202
WF4
VIDEO-Y

WAVEFORMS

0.2V 20µs
20µs
0.2V
20µs
0.2V
0.2V 20µs
10-1
Pin 56 of IC1202
WF5
VIDEO-Pb 0.2V 20µs
Pin 66 of IC1202
WF6
VIDEO-Pr 0.2V 20µs
Pin 14 of IC801
WF7
AUDIO 0.1V 0.5ms
LC5WF