Delta Elec. Inc.
ES520 & EX530
ver.02
Company Confidential Optoma___________________ Delta________________
18
2008/09/17
3. TROUBLE SHOOTING
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.
Waiting
Power On
No
No
Yes
Yes
Connect the power cord
POWER
: Light
READY
: Light
Standy-by-ready
POWER
:
7
Blinks
Over Temp LED:
ON
• Cable of Power Supply Unit and thermostat Ass’y.
• Check the connection of Power Supply (CON900 to CN201)
• Power Supply Unit malfunction
• Check keypad connection
•Lamp Cover A’ssy is not attached
•Switch (CN343) is open
•Connector (CN342) disconnected.
•Thermal sensor PWB Ass’y check.
Yes
Press “power key”
POWER
: Light
READY
: OFF
Power ON
No
POWER
:
8
Blinks
•DMD chip error.
•DMD Board PWB Ass’y check.
Yes
Yes
Yes
Yes
No
No
No
No
No
