Just read that 70% of modern TV failures are from the power supply board

I found that stat in a trade journal from the ETA International conference last year. It's wild because so many people just toss the whole set when a $30 part and an hour of work would fix it. Anyone else see that number and start checking power boards first on every flat screen that comes in?

4 comments

4 Comments

kimfisher2mo ago

It's the great secret of the repair trade. Manufacturers must love it, a whole new TV sale over a few cheap capacitors. My bench is basically a capacitor graveyard at this point.

emery2902mo ago

Disagree, it's more than just caps. Ask ryanm60 about his board traces.

claire_young765d ago

I've got a pile of about 30 dead power supply boards from LCD TVs stacked in my garage right now. Every single one of them has the same story - bulging caps near the heat sink, sometimes a couple that look fine but test bad anyway. The manufacturers probably laugh all the way to the bank knowing people will junk a perfectly good 55-inch TV over a $2 part. I had a Samsung that was literally two years old and the caps just gave up, no warning at all. It took me maybe 20 minutes to swap them out and the thing works like new again. It's almost criminal how they design these things to fail just outside of warranty.

ryanm602mo agoMost Upvoted

My own graveyard is mostly just my failed attempts at fixing things.