How to repair trace layer of keyboard?
I have a brand new keyboard, all of a sudden it developed problems few buttons not working, all the physical buttons are working fine and they going down and coming up. I've searched the net for how to repair it, many videos showed how to do it with multimeter and using conductive paint, I've repaired using those methods but still the problem persists.
It is a strange problem where sometimes some buttons and sometimes they don't work. I've checked the alignment of the bubble layer and trace layer and they are aligned, I've checked interface to the PCB and it is fine too, I've checked the trace layer again with multimeter and it is fine too.
When I say I've checked the trace layer, I've only checked the bottom trace layer, I haven't checked the top trace layer. Is there any any device I can construct with Arduino, etc which automatically checks if the trace layer is working fine?
I have a brand new keyboard, all of a sudden it developed problems few buttons not working, all the physical buttons are working fine and they going down and coming up. I've searched the net for how to repair it, many videos showed how to do it with multimeter and using conductive paint, I've repaired using those methods but still the problem persists.
It is a strange problem where sometimes some buttons and sometimes they don't work. I've checked the alignment of the bubble layer and trace layer and they are aligned, I've checked interface to the PCB and it is fine too, I've checked the trace layer again with multimeter and it is fine too.
When I say I've checked the trace layer, I've only checked the bottom trace layer, I haven't checked the top trace layer. Is there any any device I can construct with Arduino, etc which automatically checks if the trace layer is working fine?