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Magnabox tv noise flyback transforma - Projection Televisions

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Tv magnavox model MPF68B

flyback transformer number BSC29-N2450
Made in China for Changshu Yingyang electronics

thank you

Posted on Jun 23, 2008

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Post the model number of your magnavox and I will post a link where you can get the correct replacement flyback for your model and get free tech support to help you install it.

Posted on Jun 19, 2008

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When I turn on tv...green light goes on with a squeaky noise and then goes out...no picture and tv does not turn on


a noise like you describe is a symptom of what is known as the horizontal output transistor. It would be shorted and along with that the flyback transformer is bad. the flyback is very common problem with the ge version of the rca itc 222 chasis. This repair generally runs 80 to 150 dollars to repair at your local tv shop.. well maybe at our shop but that an average.

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sounds like the flyback which is a 259296 flyback. You can get the replacement flyback at the following link with free instructions
http://servicemanuals.vstore.ca/

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TV Just Started Making a Humming/Buzzing sound


Replacing a flyback is not something I would suggest for anyone with no electronics experience. Second, lets see where the noise is coming from first. Take off the back and listen to the noise. The flyback will be at one end of the large red wires that go to the tubes. Sometimes the connection at the tube is not 100% and the noise comes from there. BE CAREFUL - there are high voltages going through this red wire that can be dangerous even with the set UNPLUGGED!! IF the noise is coming from the connection at the tube, with the set unplugged, carefully turn the rubber cap back and forth touching only the rubber part with one hand. Put the other hand in you pocket while doing this.

If the noise comes from the flyback side, if you can solder, again with the set unplugged, try resoldering the pins on the transformers. That may resolve the problem.

Keep me posted.
Dan

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1 Answer

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very common problem for your model You will need to replace the flyback. Your model uses the 259296 flyback. You can get a replacement flyback at the following link with free insstallation instructions with pictures so you can easially fix it yourself. Read the reviews on the flyback to get an idea on how easy the repair is. Heres the link.
http://servicemanuals.vstore.ca/

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1 Answer

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1 Answer

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yes flyback and yoke and h.o.t all should be replaced.
repair shop was right.

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You could very well have a defective flyback, as thats the item most prone for failure with that model. You can get a replacment flyback at the following link and they will sign you up for free online instant messaging while you do the replacement so they can take you through the entire process step by step. You need flyback 259296. Heres the link.
http://servicemanuals.vstore.ca/

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1 Answer

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You can get the replacement Flyback at the following link, and they provide free instant messageing tech support to take you step by step with the replacemnet proceedure. You need phillips 32942 flyback, its listed in their flyback catagory.
http://servicemanuals.vstore.ca/

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2 Answers

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the base to emitter of the hot will read short on a diode checker/test on ohms it vairies but typically about 50 ohms.e to c, or b to c should have very high resistance. unsolder the collector of the hot. make sure all solder is gone. now test the ohm between your tuner ground & the pad of the hot collector it should read open.

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