Picked up a 46" Sanyo from a needy family. Works great for 20 mins or so, then backlight goes out. Still have sound. Upon restarting picture shows back up for 5 min then screen cuts out. If I let it cool down it will stay on longer. Could this be CFL's wearing out and drawing to much juice when warmed up. Let me know where to start and I'll post any pictures requested.
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Sanyo DP46849 Backlight Issues
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Re: Sanyo DP46849 Backlight Issues
Its almost impossible to test the invertor board on this unit. The Power Supply and Video Boards bolt to the back panel and the Invertor Board bolts under the panel. Testing while powered up is going to be a task. Taking new pictures now, because I realized that some were terrible.Last edited by Thorsbolt; 05-26-2015, 09:24 AM.
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Re: Sanyo DP46849 Backlight Issues
I ran a very low CFM fan over different boards to keep them cool and found the Main Board beneath a heat shield is getting to hot and shutting it down. It seams a finned block of metal had afoam strip on it to protect the board... It was holding heat. I removed it and the TV stays on. I'm still monitoring it. I will send a picture.
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