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www.consumeraffairs.com > Electronics > Televisions Rating: 1.5 - 80 votes
My son purchased a 42" Insignia TV for me before he died. ... Bought 50 inch Insigniaand after 13 months screen starts going black but sound stays on. ... I was having problems with the Netflix app on my 42" Insignia smart TV, so I took the ...
Sounds like a projection issue within the TV itself. Nothing that I think you can fix. A year is not up and it should be under warranty. Send it back to them and they will send you another or fix it. I had an issue like this a while back and I left the TV off a couple of days under a window with direct sunlight. I think it was too Humid in the room it was in or moisture set in. Either way, It was not under warranty and the picture returned like it was brand new. My mom has it now.
Nothing at all? Does the screen seem to go from dark black to a lighter shade of black?
If the screen appears to stay on the darker shade of black then it is broken, and needs to be sent for repair. ( ie the screen isnt powering on when the tv is and there is nothing you can do without opening it.
You might try unplugging all cables and leaving it off with no power for a day This is in effect performing a factory reset.
and this may sound stupid and patronizing but is the TV being taken out of standby mode and actually switched on?
I am experimenting with Insignia's and there is a feature whereby if a signal is not detected the TV will switch to standby mode (in about 10 - 15 minutes). It's documented as a tiny "note" in the manual under "Understanding the basics - Turning TV on or off"
I don't know if the TV resumes when the signal is restored or if you need to power on manually.
You are probably experiencing a glitch with the signal or the TV thinking the signal is not there. Are you watching a clear picture when this happens? I would first check to see if the signal is too weak (like using a signal booster). If that is not the case, it's probably the TV acting up.