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Old 10-20-2019, 05:01 PM   #143
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Join Date: Feb 2019
City & State: Scottsdale, AZ
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Default Re: Vizio P502UI-B1E has no backlight, no voltage from driver board to LED's

Originally Posted by d(-_-)b View Post

I cooked the Mainboard for 12 min @ 400 F and let it cool until next day (I actually forgot about it) and next day I decided to give it one more try before dumping the whole set in the dumpster since nothing worked in the past 4 months (EEPROMs, transistors...). Sure enough the tv is working just fine for 2 days now (roku and plex mostly) with no issues whatsoever.

I'll post back if/when (hopefully not, knock on wood) the tv goes bad again. Till then many thanks to those who posted this possible fix since my board it's not available anywhere.
Well...looks, like any miracle, it didn't last for too long. Slightly more than a month. Last night I baked the board again and it's working fine again. This time for 15 min and slightly lower in the oven.

Will see how much will last this time.
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