Flyback transformer - RCA F27442 27" TV

Flyback transformer

https://www.google.com/search?q=samsung+cs21k45mj+flyback+transformer

No Schematics. Contact Samsung direct in your country.

https://www.google.com/search?q=Samsung+CS21K45MJ+CRT+RV+schematic

Why not replace it with a 4K HD flat panel television to fit the space?

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If you wish to get some details; visit the site linked here. Pull up older posts. Surf the site with patience. http://electronicshelponline.blogspot.com/
Flyback transformer data is given. Search the site with the keyword "Flyback Transformer". Type in these words in the search box located at the top right of the display window.

The horizontal output transistor that drives the flyback transformer overheats now. There might be other reasons too for this fault. If the flyback transformer has any internal winding short, this transistor will overheat.
Just replace the horizontal output transistor. Check its heat. If the newly replaced transistor too overheats, replace the flyback transformer.

Hi

What can i do for you?

Thanks!

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.

if the final flyback is ok ,then check the driver transistor and the voltage in his collector .Probably the flyback transformer is ok.please reply.

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!!!

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.

The lead going from the flyback to that other device is a voltage divider or splitter as they're incorrectly referred to... To remove the leads press down firmly, twist and then pull up...
Bill

FLY BACK MEANS WHAT? is it flyback transformer or pulse fron eht to afc ckt. fly back transformer are available according to kit like toshiba sanyo philips