Question about Zenith B25A11Z 25" TV

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Zenith the pic is yellow on every ch is it the tube going bad or it the main board thank you

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Picture tube became weak and if you increase/ adjust gain of Blue gun, picture result can be improved.

Posted on May 30, 2008

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Per magnavox 37mf231d I switched tcon board, and put an older main board that I had laying around, now the tv tries to turn on, there is a background light for about 5 seconds and then it shuts off.


Hello, I think it either had a bad back light board or one of the florescent tubes in the display has gone bad. As these sets get older, I see more of the florescent tubes going bad. I think there are 9 in that set, and all it takes is one of them to go out to cause the set to shut down. You may also look for a bad connection on the transformers on the back light board.....thanks, let me know

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Zenith L30w36 backlight only


If it is back light only and no sounds or pic you possibly have power supply problem or main board.

Dec 03, 2012 | Zenith L30W36 30 in. LCD Television

1 Answer

Zenith 27 inch text is blurry


This tv needed CRT Tube discharge.Take the tv aparts,take out the CRT video board,must plug it back in."Highvoltage becareful",find a wire with good insulations,grounded itself in with a screw from a steal frame.High voltage "Take that wire go close to the CRT tube without the video board connect in.Than u will hear a pop,that the highvoltage,just discarge ur CRT bad contamination.The tv should be clear now,after putting it back together again,getting it working.

Dec 30, 2010 | Zenith B27A11Z 27" TV

2 Answers

Our Zenith C32F43 went out, no picture no sound, when you pudh the on/off button you can hear it click on inside but nothing??? We have had the capasiters replaced three times and then the fourth the man...


Replace the whole board,the IC shorted can't distributes the voltage evenly,that why u keep getting burn out capacitors.Might got some things,else where burn too.Becauce keep replacing the same part that is not the main cause of the prob.

Sep 02, 2009 | Zenith C32F43 32" TV

1 Answer

Powers on no pic show green flash light bulb on the front of the tv.


The convergency board is bad you would need to replace it go to www. teexp.com they could help get you the right part thanks.

Jun 14, 2009 | Zenith E44W46LCD 44" Rear Projection...

1 Answer

16 yr old 25" Zenith..1st colors went yellow/lime now TV is dead


Absolutely not worth repair. You have described a classic symptom of Zenith picture tube failure, and about 99% of the time the main board in the TV is ruined as well. You've gotten good life from the set (manufacturers figure tube life is around 7 years these days), so it's time to replace it.

Apr 09, 2009 | Zenith B27A11Z 27" TV

1 Answer

Black screen on Zenith plasma tv's


Hello, My name is Dave and I can help you fix your Plasma TV. Give me a call. Feel free to give me a call @ 1-503-432-9904 or message me at pleasefixitdave@yahoo.com

Thank you!

Dave,

Dec 23, 2008 | Akai PDP-4247 Television

2 Answers

Green People!!


yea i have seen this b4 there are 3 driver transistors on the main board by large ic, if you follow from the crt board back you will see wires going to what i am talking about, now you really need a meter and some know how, measure the 3 transistors , they will be side by side, look for the one that has a different voltage then the other 2, replace it nte 159 is a good replacement transistor for the driver transistor here. if you take to shop should be
60-100$ fix. hope this is some help and not to confusing .

Feb 08, 2008 | Zenith C27A24T 27" TV

1 Answer

Zenith model SM3587BT mostly blue


Hi,
I'm not sure of the model but most Zeniths of the 1990's the picture tubes would burn out soon. However there is one that has a transistor short usually from emitter to collector on the main board. Just trace the wire ribbon that go close to the big chip on the main board. There close to the chip are three driver transistors in a row and one of them could be shorted from emitter to collector usually. Use the number on the transistor and put prefix 121 dash and the number to cross it out. I think not sure but it may be a NTE 159 PNP. I have changed many but the picture tube is not like new after changing. If this is not the model then you probably have weak green gun in tube. Hope this helps.

Dec 29, 2007 | Zenith B25A02Z TV

1 Answer

Zenith tv no pic


You have a picture when you're watching a DVD, but none when you're watching regular cable? Does the audio appear to be okay?? Are you sure you've switched the inputs on the TV back to main???
Let me know..
Bill

Dec 08, 2007 | Zenith B25A24Z 25" TV

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