Question about Hitachi 46F500 46" Rear Projection HDTV-Ready Television
So I've changed out both IC's on the board and I still have the same problem with the 3D screen. I've been doin some research on this site and read that it might also be the digital convergence box. Is this a correct diagnosis? And is it the same type of repair requiring
de-soldering the box and soldering it back in? Changing the IC's was no where near as difficult as I thought.
Thanks in advance for all the info I've found on here!!!
Follow the traces on the PC board from the ICs and you should find either pico fuses marked as Fxxx on the board or low valued resistors that may appear to be a bit burned. Some of those parts may be defective. These are the "feed" resistors or fuses for the power to the ICs. The low valued resistors are current limiting resistors that act like fuses. If any of those are open, the convergence ICs won't function properly.
Posted on Feb 16, 2009
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Posted on Jan 02, 2017
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