Question about RCA D52W20 52" Rear Projection HDTV-Ready Television

2 Answers

Flyback Transformer replacement instructions?

The flyback transformer went in my RCA D527DYX1.

 

Does anyone have detailed instructions on  how I can replace this myself?

 

I know what it is, but it looks like it maybe clips into place, but not sure, I don't want to damage my TV. Figured instructions would do the trick.

 

I am a computer engineering tech and have worked on CRT monitors, etc. So I understand high voltage safety etc. :)

 

Please help. :(

 

Flyback

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  • Flyback
    Flyback Oct 18, 2007

    I have not found out the procedure yet, but it looks like there are plastic clips on the flyback that hold it tight to the circuit board.  I'm thinking that the pins soldered to the cb probably slide into the flyback freely, but not certain.  A flyback is between 50-80$ for this tv, but I'm afraid to damage the cb if I try to remove it without confermation that it just clips into place.

  • Flyback
    Flyback Oct 19, 2007

    Thankyou:)

  • titanfan5001 Nov 04, 2007

    I have a Zenith z46z70vb rear projection TV. It started arching between the large red wire with a black boot and what I believe is the anode of the flyback transfomer. I put more silicon around the anode and it quit arching but now I have sound but no picture. None of the the 3 bulbs come on. When I used a needle nose pliers to remove the large red wire with the black boot it would not come out . I have destroyed the boot and lt still will not come out. Befrore I destroy this thing should I try to replace the flyback and red cable. Is there a way to check this circuit or could something else be causing my problem? Please help with pictures if possible. Thanks Dan.

  • psychoangell Dec 21, 2007

    Ihave a rcs tv and trying to replace the flyback but the wires will not come out, it seems they are made on it. does anyone know how to remove the two red wires?

  • Flyback
    Flyback Apr 23, 2008

    Resolved. Called a tv tech:)

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  • 317 Answers

Remove solder from all pins and squeeze clips to remove...

Posted on Oct 19, 2007

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New flybacks come with second annode attatched so wires do not come out of old unit

Posted on Jul 09, 2008

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1 Answer

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The HOT Hortz output transistor has gone home, 99% of the time from a faulty IVHT (Flyback Transformer), very common on the ctc187cl* chassis. The factory Flyback is no longer available, I have had problems finding an aftermarket one to replace it with.

The HOT is a BUH517, but you can also use a 2SD5129. It is the transistor mounted on the siler heat sink with a metal clip rather than a screw, just in front of the flyback.....

If you replace just the HOT, most of the time you will get a rapid arc (27,000volts - BE CAREFUL!!!) from the lower (yoke) post on the flyback. If the flyback is shorted, It may also just burn out the HOT and go right back to "squealing"....

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Yes you can get the replacement flyback which is flyback 259296 at the following link and they provide free tech support to do the repair . Its a very easy repair takes about 20 minutes and requires the very basic soldering skills. heres the link.
http://servicemanuals.vstore.ca/

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2 Answers

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When you change the flyback and the HOT you are supose to replace a small capacitor that came with the flyback and also the small coil l401 that connects the hot base to the horiz. driver transformer secondary is supose to be taken out, the leads scrapped off of insulation and resoldered into place.

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