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