Got a 47 inch flat screen sanyo. tv will power on get a picture for about 10 sec and then turn off. transformer outside of house was struck by lightning

Easiest TV repair - How to Fix Power [TV turns off, freezes ...

? 6:44
https://www.youtube.com/watch?v=OKklZpTGBGU
Apr 27, 2014 - Uploaded by Keith Fox
I demonstrate in this video how to repair a Sanyo by swap out the... the Sanyo DP47460 that I'm having an issue with. after ~ 40minutes of watching, if I attempt to change the channel or adjust the volume, the picture/screen freezes. ... After ~ 20 seconds, theTV will automatically shut off, then turn back on.

SAMSUNG TV REPAIR- TURNS OFF RANDOMLY - YouTube

? 9:24
https://www.youtube.com/watch?v=7Rj22VNhKXg
Jun 25, 2012 - Uploaded by Tampatec
EASY HOW TO FIX SAMSUNG TV- TURNS OFF RANDOMLY Clicking ... Hi, I've got a Samsung LED TV that switches off after20 seconds and remains off. .... after about couple of minutes, is this the same problem with the tv in the video? .... 10:32. How to repair a Samsung LCD TV with a flashing standby ...

TV Turns On, Backlight Inverter Immediately Turns Off TV ..

Likely a power board issue. Check that capacitors are OK in the power board, and if blown then replace with exact parts. This is a $10 fix, but if it does not work after than then cost go up like replacing the power board completely.

Check and replace the main power regulator board.

Sounds like you had a high voltage power surge just before going out
Are u using a high grade reference center or surge stage 2 or 3?

But, was the cable/satellite feed protected? Lightning can come in from anywhere, not just the power line. The bad thing about the way cable and satellite installers ground things is, they ground to the same grounding system that the house does, which can backfeed the surge through the entire house - it shouldn't, but it can.

I would, however, contact the maker of the surge strip and attempt to file a damage claim. They all come with a liability warranty of some sort.

You probably have blown capacitors on the PSB-power supply board. Recaping with new UF caps works 90% of the time. The set turns itself of into a fault protection to keep from damaging more components internally. A few bucks a soldering iron some solder should do the trick.

i have a 47" inch lcd sanyo t.v. and my kids accidentally shot it with an air-soft gun. and there is a crack where the pellet hit and there is also a crack running down that spot. Also the screen has these lines running up and down the screen. Different colors. and i was wondering if it was possible to fix.

check your lamp first, owner's manual might have some help.

My 42 inch is powering on but is blank on the screen ..

Unplug the three red-blue-green plugs nest to the convergence amps. If the unit powers up and stays on the picture will look bad but will confirm that the convergence amps have failed...
Replacing the amps and one or more resistors in the yoke return will restore the set to normal operation..
Use only Sanyo original Ics..
Bill