Question about Hitachi 55VF820
I just got the television. I know it takes special cables. But would using the regular red,yellow, and white cables cause you not to get a picture?
Logically speaking, try not to use cable that aint appropriate for that device. If you want to get a better result for what you want to achieve try to use the recommended ones (cables). That projection TV need an specified accessories, which is that special cable. If you want to modify its connection try to buy an adapter for that certain cable.
Hope I can help with you with what I said.
Posted on Oct 25, 2012
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Posted on Jan 02, 2017
SOURCE: Hitachi model 57F500A
Your unit uses a Cathode Ray Tube (CRT) for each color.
Since you didn't say that it was a gradual change, I suspect the CRT filament has failed open rather than a slow death of internal emissions.
Considering the very high level of light asked of these CRTs, I am amazed they last as long as they do.
The replacement and almost certain necessity of initial alignment and color balance, this is beyond DIY possibility and is likely going to be fairly expensive.
After 5 years of use, the other CRTs are somewhat (if not a lot) degraded so don't be surprised when a tech advises replacing them all and I think it may not be a whole lot less expensive than replacing the set although looking at the specs for that set indicates it is not obsolete by any means.
Posted on May 21, 2008
TV shows large red spot in middle of tv when dark show are on, you can see it more. Now blue spots on upper right side too. Spend way to much on this tv to have these kinds of problems only after 3 yrs.
Posted on Nov 25, 2008
it is actually a light engine problem, i have replaced probabily 50 of thease for that exact problem, it is a prity hard part to change yourself, and it costs about 400 dollars
Posted on Jan 09, 2009
The 392-150 is a higher current device then the 110---you can use either--this is normal in the hitachi sets---I usually replace both with 150's---check the led that does not light---should indicate which voltage source is bad---if it is one of the 2 voltages for the convergence ic's(one is a positive and the other a negative voltage) then the convergence Ic's may be bad---look for any discolored resistors around the ic's---one way to tell if it is a convergence ic is to de-solder both ic's and see if the set turns on(the convergence will be out the window) but if it comes on change both and do the alignments with the Hitachi remote. By the way----the led should have a location number printed on the top of the circuit board.
Posted on Aug 07, 2009
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