Samsung MAX-805 Service Manual page 28

Troubleshooting
6-1-4 V.F.D Malfunction
Connector inserted
correctly?
Check voltage : AC 3.6V
at FRONT-PCB FLT?
Check voltage at UIC1
pin no. 48(-30V)
Replace UIC1
6-4
Yes
Yes
Yes
No
Reinsert the connector.
Check Main-PCB Front PCB
No
connection and the voltage of
MCW2, pins1,2(AC 3.6V)
No
Check the voltage of RR7(-30V)
Samsung Electronics