Question about Insignia I-LC23Q1 23 in. HD-Ready LCD Television

Insignia HD30 TV

The TV has worked perfectly for a year and a half or so, but a thunderstorm passed the other day, and now it does absolutely nothing......NO lights, NO responses to switches or remote. The TV is plugged into a surge protector strip along with a DVD player, Satellite box, and VCR. Those all appear to be working; at least they have their "ready" lights on. I suspected a fuse, and took the case off the TV and found a line fuse, but it checked good with an ohmeter. There are no burnt smells, and no unsightly capacitors or other components inside. What should I check next? Thanks

mike goci Jun 28, 2007

Hi Bill:

Thanks for the advice. I was out of town for a few days. I was encouraged by your "common problem" comment, but when I checked, the joints looked fine. I resoldered them to be sure, with no change. I tested R523 and it's fine. Your other ideas are over my head, or maybe just beyond the reach of my test equipment; I don't know what they mean. Unless you have other (simpler) advice, I guess it's shop time.

Thanks
Mike
Anonymous Apr 25, 2008

i have the insignia hd30 tv the unit will not power up . so i have no power there is a clicking noise present . there is olso a burt diode that i can't find a replacement for unless i buy 1000pcs.saturday im going to our local universary when my father work in the lasar lab too see what they may have . boy a blow fuse would have been nice . but only half the fun

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William Rayburn

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934 Answers

Take a look at D517 in the power supply for faulty solder joints. That's a common component problem in these units. Otherwise, if enough transient voltage got by to do any harm you might want to test the following: V504 = 2sa1668 R523 = 56 Ohm 1w N502 = Tlp421 optocoupler IC D509 = 1n4148 If any of this has you scratching your head it's probably shop time... Hope this helps, let me know... Bill

Posted on Jun 20, 2007

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