Samsung ml-1660 - Page 70

Alignment and Troubleshooting
Service Manual
4-22
Samsung Electronics
4) No Power
Description : When system power is turned on, all lamps on the operator panel do not come on.
1. Check if the flat cable
between the main board and
HVPS/SMPS board is connected
correctly.
2. Check if the HVPS/SMPS
output is normal.
Reconnect the flat cable.
Replace the HVPS/SMPS board.