Question about GE 31GT740 31" TV

1 Answer

27gt722 sound ok, no video

Model:27gt722 chassis: cte-203ad5 sound ok, no video. it does not illuminate filament CRT

Posted by on

1 Answer

  • Level 2:

    An expert who has achieved level 2 by getting 100 points


    An expert that got 5 achievements.


    An expert who has written 50 answers of more than 400 characters.


    An expert who has answered 200 questions.

  • Expert
  • 236 Answers
Re: 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

Posted on Mar 03, 2007

Add Your Answer

0 characters

Uploading: 0%


Complete. Click "Add" to insert your video. Add


3 Points

Related Questions:

1 Answer

In Samsung tv complaint<br/>in first time tv working in normal and after sometime picture is blinking and slowly no pictre. that time sound is also ok.<br/>after that am am change the capa

Check its solder terminal at the CRT board [Filament voltage]. It sounds like the filament do not glow after some time due to a loose contact at the CRT base connector sockets. Check it.
If this does not help, check the ABL circuit for any open resistor.

Oct 25, 2014 | Standard (CRT) Televisions

1 Answer

No video only sound on CRT TV

possible no filament lit in the neck of the picture tube (there are 3 and not real bright as source is only 6.3 volts.

Possible no High voltage but most that have sound have high voltage.

You are going to have to remove rear cover to LOOK--be careful and let me know what you find, if no filaments are lit it will be a easy fix and should be easy to find---if no filaments let me know.

Dec 17, 2012 | Standard (CRT) Televisions

1 Answer

Need Operators Manual for GE 27GT722

Found a manual online and that described the situation. Thanks.

Feb 08, 2010 | GE 27GT722 27" TV

1 Answer

When I turn on my TV I have sound but no picture

ths is a coman problum in tv it is a two type of problum solonution
[1]check filament voltage on crt base and check filament is on if not then Resolder filament ragistance or replace with new
IF filament is OK then ......
[2] check screen voltage hight more then normal and see the screen H line on the screen then problum is vartical section then check or replace capaceter /registance /vartical IC

Jan 30, 2010 | Sony FD Trinitron WEGA KV-32FS120 32" TV

1 Answer

Panasonic CT27HL14J sound but no video

as sound is present but no video it is due to loose contact in connector or print. if it is ok than there must be oroblem in ckt. 1 crt base loose. 2 supply to video &signal processor absent. 3 components in video section. 4 voltage on crt base not proper like g2 & filament. remember it is not major problem. hope this will help good luck.

Sep 27, 2007 | Standard (CRT) Televisions

1 Answer

No picture

as sound is ok means power supply is ok. 1 check for filament if it is glowing means it is ok otherwise check for its supply. 2 check video and crt pins voltages 3 check for connector loose 4 luminance section in chroma ic. good luck

Sep 18, 2007 | Sony KV-27V10 27" TV

1 Answer

Sansui 2110

as your sound is ok so your power supply & high voltage section is ok.(eht). please check 1 filament is glowing, 2 crt base for loose 3 voltages on crt points 4 luminance in chroma ic

Sep 14, 2007 | Sony FD Trinitron WEGA KV-36FS120 36" TV

2 Answers

GE model 27GT722

Sorry, the board is not available as a replacement. That connector can be replaced by a skilled tech.

Aug 19, 2006 | GE 27GT722 27" TV

Not finding what you are looking for?
GE 31GT740 31" TV Logo

Related Topics:

61 people viewed this question

Ask a Question

Usually answered in minutes!

Top GE Standard (CRT) Televisions Experts

matt martin
matt martin

Level 3 Expert

1187 Answers

The Knight
The Knight

Level 3 Expert

66463 Answers

Donald DCruz
Donald DCruz

Level 3 Expert

17129 Answers

Are you a GE Standard (CRT) Television Expert? Answer questions, earn points and help others

Answer questions

Manuals & User Guides