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