I have an LG 60PV400 that has a problem. Just started last week. I turned the TV off, then heard it clicking every few minutes, also the standby light would turn off, then on again. I hit the power button when the standby light was on, and it booted up just fine, picture was perfect so I shut it down. I unplugged it for a few hours then tried again, and when I plugged it in I can hear a click from the main power relay, the standby light comes on, then after about 5 seconds I hear another click, and no standby light.
Here is what I have done so far.
Disconnect all connectors from the power supply board, and measure all voltages. They all look good. Connect the Y-sus, and Z-sus plug it back in, and all voltages are OK. When I connect the Main board I get good voltages to it for the first five seconds then the error signal voltage goes quite high, and the relay switches off.
I repair medical electronics for a living, but I have never worked on a TV so I am hoping I can get some guidance as far as what to check next. I would hate to have to toss a 3 year old plasma when I can hopefully fit it.
Here is what I have done so far.
Disconnect all connectors from the power supply board, and measure all voltages. They all look good. Connect the Y-sus, and Z-sus plug it back in, and all voltages are OK. When I connect the Main board I get good voltages to it for the first five seconds then the error signal voltage goes quite high, and the relay switches off.
I repair medical electronics for a living, but I have never worked on a TV so I am hoping I can get some guidance as far as what to check next. I would hate to have to toss a 3 year old plasma when I can hopefully fit it.
Comment