Samsung HLR5078WX - Page 52

Troubleshooting
Samsung Electronics 6-9
6-3-2 When the lamp and the ballast are normal but the lamp does not turn on or turns off right after
quickly lighting up
1. Check the color wheel
Check if the color wheel is running. + Check the DMD board and the ballast for the signals.
Check the second CN503 pin for input signals. When 3.5V, 180Hz is output, the color wheel is operating normally.
※ DMD Board Check Diagram