Question about Sony KV-29FX66 29" TV

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Screen grid voltage on crt

Dear sir!
I would like to know what voltage have to be on G2 on the crt .
I have sony tv kv-29fx66k.I know how to fix it.

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  • Master
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Voltage range from that pin is 300 to 350 v. dc. 

Posted on Apr 03, 2010

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It sounds that the screen voltage [G2 voltage] is more than normal. Try it by adjusting the screen control pot-meter. If you wish to get some details, check the site linked here. http://electronicshelponline.blogspot.com/ Pull up older posts.

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Unfortunately that's an indication of the crt going bad in a Sony.
You can turn the G2 voltage down on the flyback or have a tech rejuvenate the picture tube but either of these are only a temporary fix..
The flyback is the rather large transformer with a red (anode) wire coming from it and attaching to the crt. (looks like a suction cup).
There are two adjustments on the back of the FBT, one is screen (or G2) the other is focus. With the unit on turn the G2 counter clockwise just a little and the picture will get slightly less bright. That should stop the picture from blinking out - or doing so as often. But again, it's only temporary!
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1 Answer

Sony Television


Unfortunately that's an indication of the crt going bad in a Sony.
You can turn the G2 voltage down on the flyback or have a tech rejuvenate the picture tube but either of these are only a temporary fix..
The flyback is the rather large transformer with a red (anode) wire coming from it and attaching to the crt. (looks like a suction cup).
There are two adjustments on the back of the FBT, one is screen (or G2) the other is focus. With the unit on turn the G2 counter clockwise just a little and the picture will get slightly less bright. That should stop the picture from blinking out - or doing so as often. But again, it's only temporary!
Good thing Santa's almost here... :)
Bill

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