Question about Mitsubishi WS-55859 55" Rear Projection Television

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Flyback Transformer I need help finding one of these flyback transformers, because Mitsubishi no longer makes this part. The part #334P278010.

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I checked at work yesterday, and they do have the flyback you need. I had them move it to the front page of their site so you could find it. They have free shipping. Heres the link.
http://servicemanuals.vstore.ca/

Posted on Jul 06, 2008

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I requested help yesterday withk very little support. Mitsubishi cs-26201 shuts down after 3-10 seconds. my account is Alice.ziemba@gmail.com. I checked all the electroletic capicators, and resoldered...


i hope LED blinks when it shuts down .... if yes then ......flyback transformer is weak ..... replace with same part number........GUARNTEE IT WORKS ........( REMEMBER equivalent flyback will not work..........) ..............................if LED is also off then all transisitors, diodes & ic's hav to be checked .... but flyback transformer replacing is a must...............vishnuswamy_10.jpg

Jul 29, 2011 | Mitsubishi CS-26201 TV

1 Answer

Cannot Find Flyback Transformer 60PP9202/17F


Contact Philips directly. They should be able to get you the part, even if they have to get it from another repair shops. Many repair shops purchase their parts from factory authorized distributors, not from the manufacturer. The flyback transformer powers the tube-it can be extremely dangerous to work on-EVEN with the tv off, they contain a lot of power somethjing like 50,000 to 150,00 volts. It is not fun getting shocked by one of these as many techs have been knocked unconcious by them. If you do not know the proper procedure to discharge a flyback then leave it alone!

Dec 22, 2009 | Philips 60PP9202 60" Rear Projection...

2 Answers

I intermittantly loos pickture never loose sound. Picture goues black for a split second and then comes back on.


I would check the flyback transformer on this unit something tells me that might be the issue your having. Warning tho if you do not know how to repair this TV check it into a shop as the flyback transformer has high voltage and could be fatel up including death if handle the wroung way.

I thank you very much for your free questions and do hope I was Very Helpful in your free answer today please do leave postive feedback and ratings for your free answer today.

Dec 07, 2009 | Mitsubishi WS-55809 55" Rear Projection...

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The convergance menue is gone. I need to adjust the convergance badly but it is no longer in the menu


You need to resolder the flyback transformer and replace fuse FL221 off pin 11 of the flyback transformer. The convergence power supply is not coming on so system control thinks a convergence circuit is not installed.

Oct 16, 2009 | RCA D52W23 52" HDTV CRT TV

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I am replacing the flyback transformer


You should post here pictures of old transformer and point out what wire you want to remove, then I can give you an idea what to do as flyback transformer is not in front of me.

Oct 27, 2008 | RCA HD52W59 HDTV Projection Television

1 Answer

36" RCA- loud whine/squeal when it is plugged in, otherwise no power.


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"....

Good luck finding the flyback!!!

Oct 06, 2008 | RCA F32450 32" TV

1 Answer

Flyback transformer?


Its either the flyback or a regulator. But i would need the model number of your set in order to know for sure. Please reply to this same post with your model number.

Aug 02, 2008 | Televison & Video

1 Answer

Mitsubishi 55in. Big Screen TV


You have the wrong part number you need part number 334P278010 for the WS55859 flyback. If mitsubishi doesnt have one let me know and I will post a link where you can get one.

Jul 04, 2008 | Televison & Video

1 Answer

Flyback transformer.


I can not seem to cross those numbers to any source I have. there is a good possiblity that the part is no longer available. after all the set is 20+ years old and manufacturers do not keep making parts for them forever. sears had other companies make their tvs early sets were made by zenith then they were RCA.

May 02, 2008 | Televison & Video

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