Acer P3250 Refresh, Service Manual

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P3150/P3250/P3150 Refresh/P3250 Refresh
Confidential
3-5
No Symptom Procedure
3 No Image
• Ensure the Signal Cable and Source work
(If you connect multiple sources at the same time, use the
“Source” button on the control panel to switch)
• Ensure all connectors are securely connected and aren’t bro
-
ken
• Check Main Board
• Check DMD Board
• Check Colour Wheel
• Check DMD Chip
• Check Engine Module
4 No Light On
• Ensure all connectors are securely connected and aren’t
broken
• Check Lamp Module
• Check Lamp Driver
• Check LVPS
• Check Main Board
5 Mechanical Noise
• Check Colour 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