Re: Insignia 42" LCD TV Blue Screen with Sound

All, thanks for the help. I couldn't get to the tab bonding boards and would have had to change caps, and I don't have the equipment for that. Hopefully, the sanitation company recycles these items. Will try again with a 55" Sony I have that doesn't work. Hopefully, it will be a board-level replace & fix. We'll see.

Re: Insignia 42" LCD TV Blue Screen with Sound

Bud, I see 12 VDC on both ends of the fuse on the T-Con board.

For the ribbon cable test my results follow:

Looking at the back of the TV, disconnected the left ribbon cable on the T-Con board. Result was the screen was a dark blue with no image (same as the original photo I attached to an earlier comment). When I only disconnected the right ribbon cable, the right half of the screen (when looking at the TV monitor) was normal and had an image! I pressed the menu button and was able to see half the menu...

Re: Insignia 42" LCD TV Blue Screen with Sound

I do have a voltmeter and will check this weekend, along with the ribbon cable check. Thanks.

Re: Insignia 42" LCD TV Blue Screen with Sound

Adding more information. I would only be able to fix this at the "board level" (replace the entire board). I don't have the equipment or knowledge to fix at the component level.

Re: Insignia 42" LCD TV Blue Screen with Sound

Bud,

Thanks for replying. I tried cable TV on HDMI and only got blue screen and sound. No partial image this time. Looked like some minor fluctuation to a lighter blue on the right side but not noticeable in the photo. Attached are photos of the blue screen and a photo of the back of the TV with the cover off.

Happy New Year!...

Hello all,

Trying to troubleshoot a problem with my Insignia 42" LCD TV, model #: NS-42E760A12 Rev B. When I turn it on, the screen is blue. The menu and input selection does not show on the screen. When I connected a PS4 device, I could hear sound and occasionally got a partial image (got lucky as the last input setting before it "blue screened" was on the HDMI port I used for the PS4). The partial image (when it shows) is on the right side of screen when facing the TV.

Would this be a T Con Board issue, Main Video Board issue, or something else? Powers...

Re: New Members - please post your introductions here

Hello all,

I'm in North Carolina and like Celloyd, I'm looking for some help troubleshooting the problem I'm having with my 42" Insignia LCD TV so I can try fixing it myself. No tech background but a long time tech user. YouTube videos were informative about LCD TVs but haven't addressed my TV's specific issue.