Rev. 01
Company Confidential Optoma_______________________ Delta____________
18
2007/06/13
Image
Projector logo screen
Confirmation with none-signal state
1. Check CW Sensor Board Ass’y malfunction.
2. Check Main Board Ass’y malfunction.
1. Check Lamp deterioration (malfunction/usage time).
2. Check Power Supply Unit malfunction.
(No change occurs even after lamp replacement.)
3. Check DMD Set malfunction.
1. Check Remote controller set malfunction, Low battery, and
outside operating rang.
2. Check Main Board Ass’y malfunction.
3. Check Main board connector (CN451) & U451 disconnected.
4. Check IR PWB Ass’y malfunction.
1. Check the pattern generator setting is wrong.
2. Check Main Board Ass’y malfunction.
3. Check DMD Set malfunction.
4. Check Setting on PC side (external output setting, resolution, etc.)
5. Check Cable malfunction (disconnection and pins broken).
1. Check Wire from IO board ( CN8 ) to Main board (CN705)
disconnected.
2. Check Speaker Connector to Main board (CN704) disconnected.
3. Check Speaker Ass’y malfunction.
4. Check Audio PWB Ass’y malfunction.
5. Check Main Board and keypad Board Ass’y malfunction.
Still dark after the
Menu display
Input each signal
Image display
Speaker work
Check the
projection
NO
YES
NO
NO
NO
YES
NO
YES
YES
YES
Содержание EP774
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