onetimer555
New User
Aug 2, 2015, 10:46 PM
Post #1 of 4
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Insignia LCD no picture/popping speakers
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Hi all,
TV model is NS-L55260A13 (55 inch Insignia LCD, 2 years old)
Several months ago the picture went out while using the TV and it started making a strange popping sound. The buttons on the TV became unresponsive. I had to unplug the TV to make it stop.
After powering it back up, it was fine for several months. A couple weeks ago the same thing happened. However now when I power the TV back up, it only lasts 30 seconds or so until the same thing happens. TV works just fine for 30 seconds, then picture goes out, popping noise starts, buttons become unresponsive.
The backlight is working just fine. I have confirmed that the popping noise is coming from the speakers, and it accelerates over time. If the TV menu is on screen, it will remain on when the problem occurs. Anything else, and the screen goes completely blank (backlight stays on!)
I have opened up the TV and all the capacitors and both inverter boards seem fine, in my very amateur opinion. Wondering if main board or T-con board might be the problem, but I would like to have a better idea before I start buying replacement parts.
Thanks!
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