Question about Pioneer PRO-710HD 64" Rear Projection Television

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Color/ brightness flash

When watching movies or tv, the brightness will flash and change levels. I have no manuals and asolutely no idea how to begin searching for the problem. Is ther an easy fix? I have been told that this is a very friendly tv and cna be adjusted infinately? Please help!!!

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  • stonenail Feb 04, 2009

    I have the same problem.....gradual gets brighter....washed out....then "flashes" back to normal......when it's normal...it's great.

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SHUT YOUR UNIT DOWN NOW.  We don't want further and more expensive repairs to be needed because of the threat of the domino effect to boards downline from this one, that not remedying this situation carries with it, every moment it has warmed up and is running, in this intermittent condition. 
This is a problem that is very widespread on this series of unit, and I have been 100% successful in remedying it so far, both on location and by doing the repair op on boards sent to me from many parts of the continent, and returned by me ready to go.  This has been happening over and over and over again - manyPioneer Elite - and non-Elite - boards have been sent my way, with owners totally blitzed to have their sets up and running faithfully again, after the repair.
Please call me for details and leave me contact info for you, and also send me a request via email, at bob at imageperfection dot com.  
I am not at home and can't reach for that stuff to email you, which I can do later once I'm home again later today.   
Bob 510-278-4247

Posted on May 11, 2008

  • Robert Jones
    Robert Jones Sep 01, 2009

    Here's a more expanded rendition of my solution to this problem.



    If your Elite 510/610/710 - and the earlier 520/620/720s - works fine when you turn it on but starts to go hinky on its reliability once it has warmed up, you still have a shot at getting that sit remedied for a very nominal fee - or nothing, if you know what you're doing and are an electronics professional. Those models were improperly soldered at the factory on their PS boards. Those PS boards took years to go bad, but now that the constant barrage of expansion and contraction of the too-thin solder joints has started its inexorable journey towards taking down your set, the clock is ticking. You don't have much time.

    One thing is very important, and I can't stress it enough: STOP USING YOUR SET NOW. Things could get much worse if you do. That means NOW, even if you are watching it right now. A deadly spike caused by the bad solder joints currently on that power supply board could be getting ready to be produced by a connection that is getting ready to separate as we speak, and that spike could take out one or more of the boards downline. One guy who called me had kept using his set for months with these intermittents happening, and eventually both the convergence and the deflection boards went out, both in an instant. The set would not turn on again, and built-in indicators on the circuitry showed 3 boards now needed attention. With 3 boards to now have to deal with, he decided not to get his set repaired at all, due to the now tripled expense. His set was now totalled. It tears my heart out when one of these fine machines goes down for the count because of misuse - continued use when it's obviously hurt - and is then DNR'd by its owner. That all could have been avoided by taking action promptly rather than continuing to tempt fate, on his part.

    Send me an email requesting it, and I'll send you back an emailout on how to remove it, what it costs, how to wrap it and send it, where to send it, etc. I can't divulge certain aspects of all this on the net here, must keep some of it close to the vest. Will be glad to tell you personally, by email or on the phone.

    I will tell you this much - I charge $275 for the resoldering op, you pay the shipping both ways. That's less than it costs to get a replacement board from Pio and have a local Pio warranty station install it.

    Keeping the same board in your set rather than replacing it is the way to go, IMHO. That way the voltages it was set up with originally, stay the same. If you get a replacement board, those voltages can be very different, affecting the precision of settings downline. Voltage regulation only has to fall within certain parameters, so different PS boards will produce different sets of voltages. The PS board and your set are now a matched pair. The best way to retain your precision in downline sets of settings, is to keep your original board in the set, the one your set was originally set up at the factory with.

    To find the PS board, follow the power cord from the wall. It will lead you right to it. Use the big bubble-wrap to send it rather than the small stuff, and box it in an oversized box for the journey.

    Mr Bob
    www.imageperfection.com
    bob@imageperfection.com

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