Trouble Shooting - Optoma ES520 Serivce 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
Yes
POWER: Light
READY
Standy-by-ready
Yes
Yes
Press "power key"
POWER: Light
READY
Power ON
No
POWER:
No
Over Temp LED:
ON
No
POWER:8
Yes
Waiting
Power On
Company Confidential
18

3. TROUBLE SHOOTING

No
: Light
: OFF
Yes
7 Blinks
Yes
Yes
Blinks
Optoma___________________
ES520 & EX530
• 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.
•DMD chip error.
•DMD Board PWB Ass'y check.
No
No
No
No
Delta________________
ver.02
2008/09/17