The part number for the high voltage transformer, according to another post for this tv is 258512. See below:
posted on Sep 03, 2008
jdenton77 Rank: Apprentice Rating: 85%, 1 votes
Yes, i had the same issue. High voltage trans. and the HV distributor (splitter) goes bad on there tv, they are known for that. I have the part numbers for the HVT p/n 258655 and HV distributor(splitter) p/n 258512. The two p/n are for HD56W58 proj. tv
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Your TV need a through check-up. Contact any service technician. Burning smell should be due to any short circuited component/s; either its main power regulator section circuit, or, horizontal output section circuit. This is not a user repairable fault, need some practical experience to do repair work. To get some details, http://electronicshelponline.blogspot.com/ Pull up older posts
UNPLUG SET if you have not done so--fire hazard exists.
I would open rear and LOOK--see what if anything you can see that is burnt---all parts will have a location number printed under or next to them---will point to where problem is---make sure set not plugged in and do not stick your hands inside.
WOW...had a high pitch noise, came and went...got worse as time wore on. Would shut off the set, times it cleared times it didn't. Warranty folks set out a TV repairman--said he had worked for RCA exclusively for years...anyway, explained that the 1k hertz noise was a known issue with the HD56W58 and that RCA’s published fix was "nail polish" applied on some board, had something to due with power and vibration...long story "presto" noise gone...but after 6 or so months we began to hear it again—say it ain’t so, but yes the high pitch was back. Same repairman, this time bigger problem...along with noise, the network card is broke and Fry’s Electronics (Irving, TX—hear that Corporate HQ at San Jose…your Irving store needs to be leased in and tote the company line...where's the customer satisfaction???) is balking at a “equal” replacement, they see it as take the less than equal product or get store credit…good luck & wish me luck with the equal replacement they tout when pushing the warranty.
I have a HD56W58 and it had the same problem. One day the picture went blank and then it made a loud popping sound and smelled like something burning. Now it will not turn on. Has this happened to anyone else? I
How old is this TV?
My experiance is to not put money into a TV that is over ten years
old. TVs stress out their electronic components worse than almost
any other electronic product. After 10 years, there are so many
parts that are ready to fail that your are probably wasting your money
trying to get any more life out of it.
Another option is to wholesale replace the main board from an outfit like Module Exchange at 972-298-1212
Be careful on buying a new one though. Often times, these new
technology ones are much worse. Always Google the model number of
the set you intend to buy and add the word 'repair' or 'complaint' to
see if it is one of the many models that are customer service
nightmares being produced by even the most reputable companies today.
Hope ya fix it!
This model has a history of being plaged with bad solder connections, and that may be your problem still today. If your state has "lemon laws" you might want to pursue that venue if contacting RCA directly doesn't produce results. RCA's have been my bread and butter for at least the last 12 or so years in the service business but I would not buy one today for myself.