Hi all,
I have a small problem with my interphone indoor video unit. Recently I was connecting unit in new apartament and (later I figured out) made a wrong connection. Now unit is lid but with no response.
To find new unit is almost impossible so I am trying to repair this unit, but there are no visual damages. I would be very grateful for some guidance what to check and where...


I have a small problem with my interphone indoor video unit. Recently I was connecting unit in new apartament and (later I figured out) made a wrong connection. Now unit is lid but with no response.
To find new unit is almost impossible so I am trying to repair this unit, but there are no visual damages. I would be very grateful for some guidance what to check and where...


