I am trying to fix this plasma TV. Basically when power is applied and all boards plugged in, there is a relay click on the PS, a cooling fan runs for a few seconds, then the system shuts down with a red blinking light. I found the attached pinout of the PS and trying to verify if the PS is actually my culprit since I just cannot find much wrong with it yet.
I am looking for an experienced TV tech to tell me if the "standby" pins should see power all the time whether anything is plugged into the board or not? When I apply 120V to the board with absolutely nothing plugged into it, I get 5VDC on the standby pins that call for it but there are no other voltages present. If I should see these standby voltages on the bench, that would just confirm that I am at least on the right board.
I am looking for an experienced TV tech to tell me if the "standby" pins should see power all the time whether anything is plugged into the board or not? When I apply 120V to the board with absolutely nothing plugged into it, I get 5VDC on the standby pins that call for it but there are no other voltages present. If I should see these standby voltages on the bench, that would just confirm that I am at least on the right board.