Optoma HD72 Serivce Manual page 29

No Symptom
12 Remote Controll
or Control Panel
Failed
13 Function Abnormal
- Remote Control
a. Check Battery
b. Check Remote Control
c. IR Receiver
- Control Panel
a. Check FPC
b. Check Keypad
c. Check Main Board
- Do "Reset" of the OSD Menu
- Check Main Board
- Check DMD Board
3-3
Procedure
HD72