Question about RCA HD52W59 HDTV Projection Television

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Trying to fix fuse on convergence problem

Hi again. OK here my update. i received the fuses in mail today and was in the process of fixing the fuse when i noticedwhat i suspect might be the cause. there is a solder point number 10 onwhat says CAD or on the half circle solder points on bottom. I hope uknow which im talking about. well nu 10 there is completely no solder and the hole is corroded. there is no part of the circuit board to solder to. it just doesn't look normal to me. but if it is please let me know. i will not try anything until i find out about this tyvm

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  • DLaboy Nov 23, 2008

    ty for your reply but there is no place to solder to. the area around the lead is completely gone and only like flakey circuit board around it. you can move that lead around and all the other leads have a big glob of solder around them :( i son't even know where all the solder from that lead went to as i have checked the ground and bottom of tv. i have a picture of it but my digital camera didn't take a good picture so i used my 35 mm but have to develop it. i will like to show you it but it will take a few days to get film back. I really thank you for your help

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Nice obsrervation! lead free solder this half circle is it directly under the big black componet with the red wire. i not familer with the notation cad. but the circle is charteristic of flyback. This is the common point that cause the fl231 fuse to blow.i would suggest removing the solder with a ****** or wick the clean and reappy solder when you replace fuse. always look around for bad connections like this. lead free is really become a problem with rca

Posted on Nov 23, 2008

  • Willie Howell Nov 23, 2008

    sorry bout that i guess the filter saw a dirty word remove with a vacum desolder device

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I have an RCA hd52w59. I just got it today used and I don't have a remote for it. The colors wont converge and I think it is a Convergence Chip Failure from what I have read on here. But one of the ways...


chek to see is the setup menu has the word convergence on page.
if not the the problem is an open 0.4 fuse beside the flyback/center one of three in a row.
the fuse blows because the flyback need to be resolderd, cracks on pins.

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check the convergence power supply board for blown reistors. Thats the upper left board when looking in the rear.

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in the tips and tricks section under ther fl231 article. This article explians why this fuse fails and how to fix it. it is my belief that is is bad solder connections.

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Yes i replace that fluse fl231 all the time at the shop. at least two aweek. and the first few i replaced did the same thing. I would send it back to customer and i would get a call that the set had malfuctioned again and convergence gone. It was determined the reason this fuse blows is bad conections on the flyback transformer. The flyback is the big black component with the red wire coming out of the top. if you examine the connections on this component there will more than likely be a ring in the solder. this is caused by the manufacturing process known as LEAD-free solder. THis cause oscillations in that cuicit. like turning it of and on really fast. this is a very small fuse and cant stand up to this. so when you replace this fuse just simply RESolder these connections apply a little amount of solder to these connection. i am confident this will fix your problem.

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Same as everyone green light comes on for a couple of seconds than back off!!!


ok, the problem with short detect....
unsolder all convergance ic's and try to turn it on.
does it come on?
if no, check all diods in the power suppy area.
check h-output
unsolder all convergance ic's and try to turn it on.
does it come on?
also might have a vertical ic.
mmm, check all fuses including the solder in pico fuses.
beleave they are sold green color.
when i get one that comes in they have 1 or 2 blowed pico fuses and that means convergance ics need replaced along with fuses.
good luck!!

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Pioneer sd-643hd5


http://home.earthlink.net/~oleg.filippov/ConvergenceFix.htm
http://home.earthlink.net/~oleg.filippov/ConvergenceFix.htm
http://cmpalmer.blogspot.com/2006/11/fixing-my-own-tv-part-ii.html
Sony Convergence
http://www.techlore.com/blog/entry/19694/Sony-Convergence-Repair-My-Sony-TV-has-a-distorted-picture-/
http://www.techlore.com/article/19631/Sony-Convergence-Procedure/

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