Optoma EP720 Service Manual - Page 54

Symptom, Procedure, Check Photo Sensor and clean Photo Sensor

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No Symptom Procedure - 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 4 No Image - Check Main Board - Check DMD Board - Check DMD Chip - Check Color Wheel - Check Engine Module - Check Color Wheel 5 Mechanical Noise - Check Fan Module - Check if the Main Board and the DMD Board are assembled properly 6 Line Bar/Line Defect - Check Main Board - Check DMD Board - Check DMD Chip - 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 7 Image Flicker - Check Color Wheel - Check Photo Sensor and clean Photo Sensor - Check DMD Board - Check Main Board - Do "Reset (All data)" of the OSD Menu - Adjust Color Wheel Index 8 Color Abnormal - Check Main Board - Check DMD Board - Check Color Wheel X1161/X1261/X1161A/X1161N/X110/H5360 Confidential 3-

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X1161/X1261/X1161A/X1161N/X110/H5360
Confidential
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 Color Wheel
- 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