Hitachi CP-DX250 Service Manual page 28

Power Auto Turn Off?
NO
IR Remote Control NG ?
NO
Pixel Fail ?
1
Step
：
1. Check OSD Lamp Hours
2. Check Lamp Door
YES
3. Check Lamp still light or not?
4. Check Fan still spin or not?
5. Check Thermal status
4
3
Step
：
1. Check Remote module battery
YES 2. Check Remote module
3. Check IR wire between Main board and IR board
4. Check IR Receiver on IR board
1. Check the connection between Main BD and Chip BD
2. Check the connection between OP engine and
YES
DMD Chip
3. Check Chip board
4. Check Main board
2
27
4
3
3
4