Acer P5271 - Page 61

P5271/P5290/P5390W/P5271i
Condential
3-3
No Symptom Procedure
4 No Image
- Ensure the Signal Cable and Source work
(If you connect multiple sources at the same time, use the "Source"
button switch)
- Ensure all connectors are securely connected and aren’t broken
- Check Main Board
- Check DMD Board
- Check DMD Chip
- Check Engine Module
5
Mechanical
Noise
- Check Color Wheel
- Check Fan Module
6
Line Bar/Line
Defect
- Check if the Main Board and the DMD Board are
assembled properly
- Check Main Board
- Check DMD Board
- Check DMD Chip
7 Image Flicker
- Do "Reset (All data)" 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
8 Color Abnormal
- Do "Reset (All data)" of the OSD Menu
- Adjust Color Wheel Index
- Check Main Board
- Check DMD Board
- Check Color Wheel