Samsung HL-R4667W - Page 53

Troubleshooting
6-10 Samsung Electronics
※ DMD Board Check Diagram
LAMP ENABLE
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.
3.5V, 180Hz
From Color Wheel
www.freeservicemanuals.info
9/13/15
Published in Heiloo, Holland.