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Anonymous
Anonymous Posted on May 09, 2008
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GE 31 Hi my bedroom TV the above mentioned model GE set has started acting up. The picture begins to shrink horizontally. The top comes down and the bottom comes up. It has gotten worse over the past month. From occasionally doing it to now doing it daily. It will after a bit go back to normal screen but than it will start shrinking again. It started by just shrinking about 5% on top and bottom and lately it has shrunk as much as 25% top and 25% bottom leaving just a picture shrunk half the size. Is this something I can fix easily myself? Is it a part that needs replacing? There doesnt seem to be a knob on back for horizontal and vertical adjustment. Or has the TV reached old age and is ready to die?

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  • Anonymous Nov 09, 2008

    I've had this fixed twice before. Can I repair myself?

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a-rodda

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  • Posted on May 09, 2008
a-rodda
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Check electrolitc capacitors in horizontal circuit

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Related Questions:

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1answer

Picture cut off on sides, how do i shrink picture to screen?
If model listed is correct the problem is in power supply or vertical or horizontal circuits.

If cut off on sides (horizontal) and bowed on sides it is a pincussion problem. IF short top and bottom a vertical issue--if both it is in the power supply.

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When you say small do you mean shrunk up top and bottom as well as from side to side. You definitely have a deflection problem either horizontal or vertical.If the picture just shrunk top and bottom you have a vertical deflection problem. Do you have the service manual for your model? If not let me know and I will email you one. Describe the shrinking issue a little more and I should be able to give you some guidance.
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Yes, you are correct. Usually what I find in a set like that with that symptom is that the solder joints have cracked and come loose on the vertical output IC. That is the IC which drives the yoke coils that spread the picture up and down. If you have soldering experience then you can locate this IC and resolder its pins but if you have never worked on PC boards then have a qualified tech handle it for you. This is a very easy thing to repair so it should not cost too much.
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It is in the power supply or I would guess most likly in the horizontal sweep section of the tV set. MOST of the time, if the power supply is going lower in voltage, the set will shrink in width,BUT will also shrink in vertical size. If this is not happening, then I would say it is in the horizontal drive circuit. This is not a circuit a user should be experimenting with, as this is the HIGH VOLTAGE circuit and can pack a mean punch! Please if the sets less the 4 to 5 years old you may want to concider an estimate or replacing the set. Its all up to you. GOOD LUCK
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