Optoma EX774 Serivce Manual page 16

Image
Display
Yes
Projector logo
screen display
Yes
Confirmation with none-signal state
Still dark after the
lamp is on for
more than 1min
No
Menu display
Yes
Input each signal
Yes
Image display
normally
Yes
Speaker work
normally
Yes
Check the
projection
Screen
Company Confidential
No • CW Sensor Board Ass'y malfunction
• Main Board Ass'y malfunction
• DMD Set malfunction
• Lamp deterioration (malfunction/usage time)
Yes
• Power Supply Unit malfunction
(No change occurs even after lamp replacement.)
• DMD Set malfunction
(No change occurs even after lamp replacement.)
• Remote controller set malfunction, Low battery,
No
and outside operation rang
• Main Board Ass'y malfunction
• Connector (CN451)、(CN101 of IR PWB) disconnected
• IR PWB Ass'y malfunction
• Check the pattern generator setting is wrong
• Main Board Ass'y malfunction
No
• DMD Set malfunction
• Setting on PC side(external output setting, resolution, etc.)
• Cable malfunction (disconnection and pins broken)
• Connector (CN705)、(CN8 of IO BD) disconnected
No
• Connector (CN704) disconnected
• Speaker Ass'y malfunction
• Main Board Ass'y malfunction
• IO Board Ass'y malfunction
Optoma_______________________
16
No
No
No
No
No
Delta____________
Rev. 00
2008/07/02