Over Templar

Thank you for your help and suggestion, but unfortunately this is not the case. The factory reset didn't help. This seem to be an issue in electronic circuit. Service manual for that model would be the best help to repair it.   When opened the case (not an easy task due to partially glued elements) there are two electronic boards and a set of connectors. The boards are signed as: -> "2230-04476-ED300" - probably the motherboard with main computer -> "2230-04476-ED000" - a power supply socket, CSC2314F input selector and amplituner circuit with YD7377 chip   Unfortunately checking the YD7377 chip didn't lead to solution: this chip just seem to work OK (the voltage levels on outputs are just fine). It is possible that the reason is either a break in the circuit or discrete element (resistor, condenser) malfunction. It is hard to find the wrong element without the scheme, because it is unknown where are the control points on the board and what should be the proper voltage levels (or oscilloscope signal waveform).   The other solution would be to buy a new (fully working) "2230-04476-ED000" board. Where can I find one?   ... Meer weergeven