Trouble Shooting - Optoma EX785 Service Manual

Delta Elec. Inc.
By checking operations during normal usage time, it is possible to carry out judgments on
malfunction to a certain extent.
Carry out the following checks before disassembling the equipment.
Connect the power cord
< Stand-by >
Yes
Power: Amber Light
Temp : OFF
Lamp :OFF
No
< Power supply error >
Power: OFF
Temp: OFF
Lamp: OFF
No
< Fan error >
Power: Flashing Red
Light6
Temp: OFF
Lamp: Flashing Red
Light（1，2，3）
Company Confidential
26
DP-3638/DP-7606

3. TROUBLE SHOOTING

Yes
• Power Supply Unit malfunction
• Check the connection of Power Supply (Power BD
• Check keypad connection ( MB
• Check voltage (12v, 5v, 3.3v, 2.5v,1.8v,1.2v,...etc) on Main Board.
Yes
• Check the system monitor & fan
• Connector (P8001, P8002，P8003) on Main Board
disconnected.
Optoma ______________________
CON201 to MB P302)
P801 to Keypad CN101)
Delta____________
2010/01/04