Optoma EX542 Service Manual page 37

No Symptom
Remote
12 Controller/Control
Panel Failed
Function
13
Abnormal
14 Audio Abnormal
Network Fail (for
EX542/EX615/
15
EX540/EX762/
EX540I/EX542I)
EX540/EX542/EX612/EX615/EX762/EX540I/EX542I/ES523ST/EW533ST Confidential
- Remote Controller
a. Check Battery
b. Check Remote Controller
c. Check IR Sensor Board
d. Check Main Board
- Control Panel
a. Check FPC
b. Check Keypad
c. Check Main Board
- Do "Reset (All data)" of the OSD Menu
- Check Main Board
- Check DMD Board
- Ensure that the signal cables and source are work as well
- Ensure that your Projector is not in "Mute" mode
- Check the interior Speakers of the projector
- Check the exterior Speaker that you are using
- Check Main Board
- Check Daughter Board
- Ensure you have set up the right IP address and the
connection is OK (Network green LED should light up)
- Check Lan Module Board
- Check Main Board
Procedure
3-5