haven't progressed any further than I can get the neon working with a battery, there's 14vdc to the connector, when testing the neon in diagnostics I sometimes see various random lights quickly flick on then off, but have not been able to make the neon pulse on.
Did lots of visuals and replaced dead bulbs but I think I'll have to give up for the moment again as its done my head in way too much this time. thanks for all your help.
At least I know I don't have to replace the neon or transformer. thanks again
If the driver transistor array is tested OK then you either have a signal fault in or signal fault out.. fact that you can bang the door and neon comes on suggests a faulty connection.. make sure you have power to the driver and make sure ground reads as ground ( pin 10 I believe).. you also have a COMMON on the chip.. test this voltage ( pin9?)... stick yer DMM black lead on the ground plain in the cabinet and test
