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Troubleshooting
From previous
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No picture with S-VIDEO
input source
No
No picture with
Component input source
No
No picture with video
input source
Yes
Check AV source selecting stage;
Check S-video signal (Y/C) on the AV board.
Check IC2101, Video/S-Video-sw, and IC3101, Video decoder, and
peripheral circuit.
S/CV-SW signal (S-Video:H) is applied on pins 2, 7 and 12 of IC2101,
output from pin 17 of IC1804.
Yes
Check AV source selecting stage;
Check component signal (Y/Cr,Pr/Cb,Pb) on the AV board.
Check IC5201, PC/AV RGB SW, and IC8201, A/D conversion and
peripheral circuit.
Check IC2101, Video/S-Video-sw, and IC3101, Video decoder, and
peripheral circuit.
PC/AV_SW5 signal (PC: H) is applied on pin 26 of IC5201, output from
pin 16 of IC1804 through IC1351, buffer IC.
Yes
Check AV source selecting stage;
Check composite video signal (Video) on the AV board.
Check IC2101, Video/S-Video-sw, and IC3101, Video decoder, and
peripheral circuit.
S/CV-SW signal (Video:L) is applied on pins 2, 7 and 12 of IC2101, out-
put from pin 17 of IC1804.
Check IC2101, Video/S-Video-sw, and IC3101, Video decoder, and
peripheral circuit.
PC/AV_SW5 signal (PC: H) is applied on pin 26 of IC5201, output from
pin 16 of IC1804 through IC1351, buffer IC.
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