Question about Toshiba 51H84 51" Rear Projection HDTV-Ready Television
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Posted on Jan 02, 2017
SOURCE: toshiba 51H84
I would not replace the convergence ic's just yet. first, pull off the CRT sockets off the picture tubes and lay them aside, making sure they are not touching anything. Next disconnect the Plugs off the convergence board, where the STK IC's are. Next see if the set will turn on now with sound. if it does, replace the convergence IC's. If it does not check the sweep power supply and or the main regulator IC and circuit. Good Luck Please do not forget to rate this thread.
Posted on Dec 15, 2006
this is a very common problem in a lot of Toshiba sets of this type----bad caps(filter capacitors) on the "Hyper" board---it processes all signals in the set---it will start out where it clears up after warmup and as time goes by it will take longer and longer to clear up----the board is no longer available and the only way to repair is remove the one in the set and send it out for rebuild---most of the time this costs 3-4 hundred parts and labor(not worth doing)
Posted on Aug 07, 2009
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