Question about Portable Televisions

1 Answer

TVM 1900c Sansui, no picture but has sound started at line in the middle

Can you help me fix this problem, It started one day when I was watching and
suddenlly I just see line in the middle but I can hear sound. What do you think the wrong componemt maybe

Posted by on

  • Anonymous Nov 12, 2008

    TVM 1900c Sansui, no picture but has sound started at line in the
    middle problem. I cleaned it (vacuum) and it worked after a while the picture goes out again, I turned it off, and few minutes after turned it back on and worked again
    So it seems to do this after it gets warm...











    Description:

×

1 Answer

  • Level 3:

    An expert who has achieved level 3 by getting 1000 points

    All-Star:

    An expert that got 10 achievements.

    MVP:

    An expert that got 5 achievements.

    Vice President:

    An expert whose answer got voted for 100 times.

  • Master
  • 790 Answers

Hi

you have defective vertical output! that is vertical IC and 1.2 Ohms Resistor.. replaced the two components..

Thanks!

Posted on Nov 12, 2008

Add Your Answer

Uploading: 0%

my-video-file.mp4

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

×

Loading...
Loading...

Related Questions:

1 Answer

FIGURE OUT WHERE TO START DIAGNOSES


https://www.youtube.com/watch?v=sDwZQIZB... try this video 1st.sounds like your problem.

Jul 07, 2016 | Vizio E701I-A3 70-inch LED-backlit LCD TV...

1 Answer

Is there a free website for sansui tv's such as model # tvm2515?


none that I know of. What seems to be the problem? Best Buy carries this model and would be a good place to start to resolve most of your questions unless they are as usual clueless about their products if you didn't by it from them
Stu

Mar 23, 2012 | Portable Televisions

1 Answer

Flat Panel Televisions Samsung lcd tv no picture just sound


try to get the tv on service, You might have changed the bulb(something like). in my country this cost about 41 euro.

Feb 14, 2010 | Portable Televisions

1 Answer

My television has no picture or sound it just has black background with a white horizontal line in the middle


If it's old, it's most likely reached the end of it's working life. Some older sets had a 'service' switch for repairmen, when the switch was thrown it would produce the same effect as you describe.I wouldn't really call this a solution, but get a new one.

Oct 02, 2009 | Portable Televisions

1 Answer

High audio static on all but one channel of my RCA TV


had this problem for a while only just found the cause, its either your tuner flipped out which means you just neded to retune the tv and it should be fixed if not that there was this setting i found still not sure what it is or means but you could select these letters i think there was S, BG and some other ones but i changed it to the top one which was BG and it fixed the static sound with the clear picture problem just stuff around with the channel settings and see if you have that setting hope that helped

Aug 16, 2009 | RCA Portable Televisions

1 Answer

What can I do to fix the flipping of the screen from snow to prog


the tuner is getting a weak signal and that is why the vertical sync signal is weak and the picture is rolling .check the cable on the back

May 23, 2009 | Samsung Portable Televisions

1 Answer

Toshiba TV -- horizontal line


sounds like you have feild colapse.take off the back and on the ciruit look for the horizontal and when you get it sue a screw driver and a mirror. put the mirror in front of the tv once you locate the horizontal plug the tv back on and look at the mirror and as soon as you turn the horizontal you will see the picture come back up to the correct size, if no good???? take it out and get a new one if you look on the side off the component you must get tthe same for safety, solder the new component in and try again

Apr 20, 2009 | Toshiba Portable Televisions

1 Answer

Picture's gone--sounds fine!


This is very likely not the picture tube. I suspect that something in the vertical oscillator section has gone bad. You will need to get the schematics for this set. Locate the vertical section and look at the transistors and IC's to see if they are still good. Also check for bad solder joints and open resistors. You can do all the checking with a simple Digital Volt Meter. You can get all the info you need online for how to test transistors, diodes, electrolytic capacitors and resistors. Most of my TV fixes have involved bad solder joints that have gone bad after years of hot/cold cycles , usually under a component that gets hot (heat sync) , resistor, or heavy item such as a transformer. The other issues are usually with transistors or IC's that have gone bad due to power surges or age degradation. Sometimes fuseable resistors open open. Sorry I can't be more specific. There are too many things to check. Could also be a power supply issue. but highly unlikely if you still have a center line. TV tubes hardly ever go bad unless the set is very old.

Apr 19, 2009 | Portable Televisions

1 Answer

Blank screen with a line across the middle


thats the VERTICAL OUTPUT IC that went bad , needs to be replaced . hope this helps

Apr 30, 2008 | Jensen 5" Color TV 5 in. Portable...

1 Answer

POP and noothiing


yes it can still be fixed! the pop sound you've heard maybe came from a blown capacitor in the vertical deflection circuits. this symptom, sometimes called the tube light effect, it is characterised by a bright thin horizontal line across the middle of the screen. this symptom is caused by a breakdown in the vertical deflection circuit. hence maybe the trouble maybe in the vertical oscillator, amplifier or output circuits. but if all i have said is not clear to you, better bring it to a qualified tv technician. good luck!

Mar 10, 2007 | RCA E13309 13-Inch Diagonal XL-100 Color...

Not finding what you are looking for?
Portable Televisions Logo

Related Topics:

84 people viewed this question

Ask a Question

Usually answered in minutes!

Top Portable Televisions Experts

Blake

Level 2 Expert

136 Answers

The Knight
The Knight

Level 3 Expert

68157 Answers

Donald DCruz
Donald DCruz

Level 3 Expert

17129 Answers

Are you a Portable Television Expert? Answer questions, earn points and help others

Answer questions

Manuals & User Guides

Loading...