Question about GE 31GT740 31" TV

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GE 31GT740 problem

Ok there is no picture and no static discharge on the screen when I turn my tv on. I do have sound but it wont go up or down and the screen never turns on please help me

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Re: GE 31GT740 problem

Sounds like you could have a bad Picture tube, as the filaments may not be lighting, as they are open, or maybe a video problem, or perhaps a problem in the Sweep power supply. This is an inexpensive TV set and will most likely cost more to repair then you could purchase a new TV for. Good Luck

Posted on Jun 21, 2007

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I have a GE 31" GT740 and it is turning the volume

The problem of your tv is the tact switch it is already dirty and contacts.The vibration of the sounds triggering the tact switch when the sound is producing a bass. Replacing the tact switch will resolve the problem. Good day and best regards.

Aug 08, 2011 | GE 31GT740 31" TV

1 Answer

I own a GE 31gt740 and I heard a squealing noise a few times, but TV still worked. Then, I turned it on one day, heard the squealing noise, then saw a little smoke, some crackling, and no sound or picture....

I think that the problem of your tv is the flyback transformer. The noise you are hearing is the high voltage, it is leaking from the flyback transformer. The smoke you see may came from the flyback or the capacitor. To be sure to the problem, try to remove the back cover of your tv but be sure to unplug it. Try to plug it, then turn on your tv but you should turn of the light so you could see the high voltage that is leaking but be very careful when doing it.

Jun 21, 2011 | GE 31GT740 31" TV

1 Answer

My 31GT740 tv's picture is taking up to 5 minutes to come on...

There is possibly a loose solder joint in the horizontal drive circuit. There is a little coupling coil just before the horizontal output that will get loose. This should not be real expensive to have repaired.

Oct 20, 2009 | GE 31GT740 31" TV

1 Answer

Tv just clicks when turn on there's no picture or sound

The click is an indicator of a power relay that is activated when the power key is pressed, this eliminates the a stand by power supply problem, but there is still a power source missing, otherwise the click noise would be accompanied by another noise(static) when the h. circuit feeds th hv unit and powers the rest of the tv set. you could find an open fuse, usually blown by a shorted h.o.transistor which is a common failure with these sets. You could have it inpected by taking it to a tech, but a h.o. transistor plus labor would set you back around 150dolls, always a good idea to call first and try to get a guesstimate of what cuold be the final number.If your question was answer please your positive feedback this will help me.thanks!

Aug 28, 2009 | GE 31GT740 31" TV

1 Answer

GE 31GT740 TV problem

hit the clear button on the remote and it will clear the guide plus off the screen

Jul 09, 2008 | GE 31GT740 31" TV

1 Answer

GE 31GT740 clicks off and on

Dead, led flashing red/green at first, then going to red standby
Replace C604 (1000uF, 16v) elec. cap. It is in the decoupling circuit for the 5 volt supply
Reverts to standby from switch on via TV or Video
No 5v rail because FET MTP3055 o/c. (BUZ71 will do nicely)
Goes straight to standby, after a quick burst of power
Replaced R952 (39K), had gone slightly high

Nov 23, 2007 | GE 31GT740 31" TV

1 Answer

I just had the sound go out!

No Sound
Replace sound i.c (TBA120U)
No sound, picture ok
When shifting up the channel frequency using the fine tuning, a very weak sound could be heard. Replaced the sound IF demodulator chip U2829B(IC2110)

Oct 25, 2007 | GE 31GT740 31" TV

1 Answer

27gt722 sound ok, no video

I found one of these that had an inductor coil which is in series with the hoizontal output transistor base open up. It had a bad solder connection where it goes through the circuit board. This might be what happened to your tv. If so, it needs to be resoldered. What happens is that you loose horizontal drive and since the voltage that lights the filiament of the picture tube is derived from the flyback transformer this voltage is gone. Another possibility is that you may have an opem filiament (rare) or a loose connection on the picture tube driver board which is mounted on the neck of the tube. Stargazer

Feb 23, 2007 | GE 31GT740 31" TV

1 Answer

Squeals Like a Pig


Nov 06, 2006 | GE 31GT740 31" TV

1 Answer

Green Lines Horizontally

yeppers its a g2 control on the flyback thats gone or drifted out of alighnment or the flyback its self.Try turning the g2 control dowm till those lines fade. If they wont go away then you need someone to check the Picture tube or its componets driving the crt.

Mar 26, 2006 | GE 31GT740 31" TV

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