Insignia NS-LCD47HD-09 Cycling Power

[n3lka]

My Insignia is cycling power. It will turn on and off by itself. When it shuts off, the "Power Off" displays on the screen. I'm leaning towards the main board, since it looks like it's getting the signals to turn on and off.

I've read the other posts here related to the other Insignia and Dynex tv's, some were a mixed bag of results. Visually inspecting everything, it all looks good. I did touch up some components on the main board by reflowing some solder joints, but it's still cycling power.

No set pattern, it will stay on for a while then go in spurts. Just a weird issue, let me know if anyone has seen any similar issues.

Thanks,
Brian

[tech2014]

Re: Insignia NS-LCD47HD-09 Cycling Power

yes it sounds like a main board issue

[budm]

Re: Insignia NS-LCD47HD-09 Cycling Power

Standby Voltage stays steady when this cycling is happening?

[n3lka]

Re: Insignia NS-LCD47HD-09 Cycling Power

I'll have to take it back apart again and put a meter on it. I was under strict orders that "Dancing with the Stars" was coming on.

[n3lka]

Re: Insignia NS-LCD47HD-09 Cycling Power

Funny thing happened since I last worked on it. It started to act up again, so I unplugged it again. Unplugging it made it work longer, well it's been almost 2 weeks, and it's still up and running. So I don't know if the shotgun approach to touching up the main board or reseating connectors fixed it. If it acts up again, I'll start taking voltages.

[n3lka]

Re: Insignia NS-LCD47HD-09 Cycling Power

Update, the Insignia is still running. So maybe a bad joint on the main board.