Riddled TV Repair Forum

John · Guest

I had a working tv until lighting hit line 2 miles away and set was plugged in but not turned on, heard a snapping sound. At first it turned on but vertical height was short on top and bottom about 1/4", next day turned on again only had about 1/2 of vertical height. Now set will try to start but shuts down after 2 seconds. I tested over the top of some of the componets but have not removed any yet. Power supply diodes seem good. What I am wondering if a set will not start up how far do you need to look for problem as it has #LA7837 13 pin Vertical IC chip which I would never be able to test and remember the set did work a short while after liughting strike so can't be to serious like windings or flyback. I had a different set hit by lightning thru power line when set was on and there was about 7 diodes and lots of caps shorted but this set does not seem that bad.

Any suggestions?

Thanks John

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kuhurdler · Joined: 28 Dec 2006 Posts: 2571 Location: Overland Park, KS

I'd replace that vertical IC you mentioned and check (or just replace) all the electrolytic capacitors around it.

edit--
Actually I would first re-wet (re-solder) all the legs of that vertical IC, and the capacitors around it.