Samsung MAX-610 Service Manual page 20

Troubleshooting
6-1-4 VFD Malfunction
Connector inserted
Check voltage : AC 4.8V
at FRONT-PCB FLT?
Check voltage at UIC1
6-4
correctly?
Yes
Yes
pin 48(-33V)
Yes
Replace UIC1
No
Reinsert the connector.
Check Main-PCB Front PCB
No
connection and the voltage of
CCW1, pins 1,2(AC4.8V)
No
Check the voltage of RZD1(-33V)
Samsung Electronics