No Picture - Sanyo PLC-XU116 Service Manual
Multimedia projector
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Also See for PLC-XU116:
- Owner's manual (399 pages) ,
- Specification sheet (1 page) ,
- Command list (1 page)
Table of Contents
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Troubleshooting
No Picture
Check following steps.
No picture with all of
input sources
No
No picture with Pc1
[Analog] input source
only
No
No picture with Pc2
[digital] input source
only
No
No picture with all of
computer input sources
No
No picture with video
input sources
Yes
Check signal processing stage and LCD driving stage;
Check RGB S&H signals at test points TP35B, TP35G, TP35R.
Check power supply circuit 15.5V and peripheral circuit.
Check ICs IC501, IC531, IC561, IC401, IC301 and peripheral circuits.
Yes
Check IC5201 and peripheral circuit.
Yes
Check DVI inteface stage;
Check IC7001, IC5201 and peripheral circuit.
Yes
Check PC/AV source selecting stage and processing stage;
Check IC5201 and IC301<Scaler> and peripheral circuit.
Check AV source selecting and decoding stage;
S-Video source
Check S-video signal (Y/C).
S-C signal is applied to pin 265 of IC301<Scaler>, and S-Y signal is
applied on pin 264 of IC301.
S_SW signal (S-VIDEO:L) is input to pin 92 of IC1802.
Composite video source
Check composite video signal (Video).
The composite video signal is applied to pins 262 of IC301 <Scaler>.
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