Sanyo PDG-DWL100 Service Manual page 30

No Symptom
7 Image Flicker
8 Color Abnormal
Poor Uniformity/
9
Shadow
Dead Pixel/Dust
10
(Out of spec.)
11 Garbage Image
- Do "Factory default" of the OSD Menu
- Ensure that the signal cables and source are work as well
- Check Lamp Driver and waveform
- Check Lamp Module
- Check Color Wheel
- Check Photo Sensor and clean Photo Sensor
- Check DMD Board
- Check Main Board
- Do "Factory default" of the OSD Menu
- Adjust Color Wheel Index
- Check Main Board
- Check DMD Board
- Check Color Wheel
- Ensure the projection screen without dirt
- Ensure the projection lens is clean
- Measure Brightness under "Bright" mode. Ensure the
Brightness is within spec(please refer to 4-9 Optical
Performance Measure for how to get into "Bright" mode.)
- Check rod alignment
- Check Engine Module
- Ensure the projection screen without dirt
- Ensure the projection lens is clean
- Clean DMD Chip and Engine Module
- Check DMD Chip
- Check Engine Module
- Ensure that the signal cables and source work as well
- Check Main Board
- Check DMD Board
Procedure
PDG-DWL100 Confidential
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