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Why have I replaced my power supply board and screen still goes black?
I have a Vizio 550I-B2 LWJ2PPAQ Tv. One day screen went black but had sound. I never could see any semblance of pic with flashlight check. I replaced power supply board - tv booted up and picture went black with sound in 5 minutes. I will attach images of original and new power supply as well as LED driver. One capacitor looks crooked but unsure if that means anything. 16 pin connection looks fine.
ANSWERS:
"@jlove
Check CN101, CN201 and CN202 with a multimeter. See if you get the voltages that are needed from your board. This ""tv booted up and picture went black with sound in 5 minutes."" is usually an LED issue, so check/replace your LED driver board (if your power board supplies the right voltageto it (CN201/CN202)). The only thing after that is your main board."
Jolee, did you get this fixed? I replaced the power board but still nothing. I can see with a flashlight that the tv is on though?
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