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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
POWER: Blink
POWER: Blink
Stand-by ready
Yes
No
POWER:
No
POWER:
Waiting
Power On
Company Confidential
20
3. TROUBLE SHOOTING
No
Yes
4
Blinks
Yes
7
Blinks
Optoma_______________________
EP7155i & EP1691i
• Cable of Power Supply Unit and thermostat Ass'y.
• Check the connection of Power Supply (CON2 to CN900)
• Power Supply Unit malfunction
• Check keypad connection
•Thermal Break Sensor error
•Switch (CN342) is open
•Case Open
•Switch (CN343) is open malfunction
ver.00
Delta____________
2008/12/24
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