BUTTON DOESN'T WORK
Check the connectors at the
main PCB and the line filter.
Are the connectors loose or
disconnected?
No
Check the connectors
between the main PCB and
the display PCB. Are the
connectors loose or
disconnected?
No
Replace the main PCB.
Reconnect or
Yes
Repair
the connector
Replace the
Yes
main PCB.
34