I too have the same problem with the DC-DC board on the Sharp AVC. But I didn't spend the $134 for a replacement board (MCM or Newark).
Instead, I used the reflow technique by placing the circuit board in the oven for 7 minutes at 475F. You need to cover the plastic header connectors (about 7 of them) with foils to protect them from direct heat (and melt). Take the board out of the oven and give a little pressure on all the ICs while the board is hot. Let it cool down and voila! The TV is working again...
Also did it. It worked. 475 in the oven for about 5 minutes. Foil wrap the white plastic parts first. I put the board on a cookie sheet. Once out of the oven, use a paper towel to push down on the components. Popped the board back in, and it worked. Wife thought I was nuts, until the tv started working again!
×
I used the reflow technique suggested above and things are working again. thanks for the advise. Took only 30 minutes from start to finish including cool down time.
I have identical problem. I am a novice at fixing things but would like to try this solution that has worked for you. Would anyone have a picture that identifies the board that needs the above mentioned treatment. Also, any pointers on disassembling and assembling the box would be great too. Thanks.
I'll try to get you a picture of the board by the weekend. Damian
×
Yes this also fixed our tv! Reflow technique for the win! Thanks to all who commented here. We did this 10/2019 on our sharp aquos and it is still working. Great picture and TV.
02/2020
SOURCE: LC-45GX6U
bryansled is 100% correct. I had the same problem, and was told by the repair shop it would cost about $500 and it was probably better to buy a new TV set. I was skeptical at first because the part costs about 150 bucks. That's a lot of money if it doesn't work. But I figured WTF, just try it. Easy to install and it worked right away. Bryansled, I can't thank you enough.
1,576 views
Usually answered in minutes!
×