Question about GE 24GP653 24" TV

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GE Television 24GP653 - Vertical out

First I had horizontal lines near the top of the screen for about one month. Now the image has collapsed to the bottom 1/10 of the screen or just a flickering line at the bottom. Audio also quit at the same time. I have some background in digital systems and circuit board design. Can this be fixed? I would guess a internal power supply toasted some IC's. If you would be willing to give me a hint, or even better, component identification or location I'm sure I can put humpty-dumpty together again. It would be greatly appreciated.

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Change the vertical ic la78--

Posted on Nov 10, 2008

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The vertical is out on my GE 24GP653.


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This is what is known as frame collapse - which means there is no vertical deflection applied to the tube.

Please do not continue to watch the set in this condition as it may burn a horizontal line in the middle of the screen.

The most likely cause is either bad solder connections to or failure of the frame vertical output IC.

Please rate the assistance I have given - I hope it is useful. If you call a serviceman and tell him its frame collapse as this type of repair is not for amateurs - voltages in television receivers can kill.

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Jan 09, 2008 | Televison & Video

1 Answer

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I turned the G2 voltage up and noticed a white screen with flyback lines, frame ok. I detected two badly soldered double diode rectifiers in the secondary part of the power supply ! I checked all other joints, and everything was ok !! success
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1 Answer

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1 Answer

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The several thin white lines at the top of the screen is the warning that the vertical output IC is not getting the boost voltage it needs to run correctly. The IC cannot operate for long like that and shorts out inside, which is when the vertical collapses altogether and you get the thin white line through the center of the screen. The good news for your son is that he had nothing to do with that, and it has nothing to do with the cable F connector. The set needs to be serviced by an experienced tech who will restore the boost supply and replace the vertical output IC, and when I do that I charge $75 but techs in your area will vary, so be sure to ask around.

Jul 26, 2007 | GE 24GP653 24" TV

3 Answers

Lightning Strike?


Assuming this line is across the screen horizontally (side to side), this means the vertical deflection circuitry is dead. In late model sets, there is a Integrated circuit package which drives the vertical yoke coils. Possible defects: the I.C. itself, bad solder connections where it solders to the board, missing voltage source to this I.C. (often around +24 volts), or a bad electrolytic capacitor in the associated circuitry. This latter often results in a non-linear picture, or less than full deflection condition, rather than a thin line only. It is possible lightning caused this problem, (I've seen some rather illogical damage from lightning ) perhaps it produced enough of a surge to pop the I.C. or a fusible resistor in that voltage source noted above.

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1 Answer

Image adjustment for GE 24GP65


Yes you can adjust the vertical size in the service menu, but you must be carefull when doing any horizonal adjustment as this can shut down your set .

Dec 16, 2006 | GE 24GP653 24" TV

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