Question about Sanyo DS31590 31" TV

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Line across picture tube

Have a small horizontal line across picture tube sound appears to be working

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  • Anonymous Feb 03, 2009

    there is not a picture showing on the TV just a line ___________ going across the middle of the screen

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  • 7 Answers

Had the same problem with mine. The vertical hold chip broke loose from the solder,Resoldered it works fine. You will need a magnifying glass to see this on the bottom of the board.

Posted on Jan 31, 2009

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1 Answer

Picture appears only as a thin, horizontal line...


chk vertical amp /vertical drive i/p from oscillator/power to it/power to vertical amp/chk dry joints-hot area/look at vertcal amp capacitors-swelling etc

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1 Answer

Line across picture tube


It's a bad solder connection on the vertical IC.It will be mounted on the main board.It is vertical in length and will have thirteen pins..should be marked "LA7838" or similar.

Apr 04, 2009 | Emerson TS2587D 25" TV

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Turned on, and picture went out(just a line)with sound. never had problem with picture,but remote stop working about a year ago, cable tech said its tv not the remote


If it's a horizontal line across the face of the picture tube, your TV has a problem with its vertical output. Most likely, it's bad solder connections to the vertical output IC. Because this part gets very hot during normal operation, the connections to the circuit board can crack and the part quits working. All you see then is that narrow line across the tube. A few minutes with a soldering iron to repair the connections is usually all that's needed to fix the TV. It's also possible the part has truly failed, but the bad connections a much more common. A service shop could do the repair if you don't know anyone with the soldering skills.

Mar 29, 2009 | Panasonic CT-25G6 25" TV

3 Answers

TV: bright line across black screen for several hours.


vertical output ic needs to be resoldered. careful leaving that bright line displayed on the screen as this will cause a permanent phosphor burn into the tube. this can not be corrected once burned unless you replace the tube. mch

Mar 08, 2009 | JVC Standard (CRT) Televisions

1 Answer

Picture on RCA TV shrinks to a horizontal line


Hello,
Sounds to me you have a cold solder joint ( loose solder connection ) on the printer circuit board around or on the vertical chip or on one of the vertical capacitors. You may also have a bad vertical chip or a bad vertical capacitor, but I doubt it since it did come and go. I'de get a soldering iron and some solder and touch up the connections. I will remind you that you need to always excersise saftey by making sure, before removing the back, unplug the TV from the wall, and use care not to come in contact with the large red wire going to the back of the picture tube as the picture tube can be turned off and still store lots of voltage ( up to 35,000 volts). Always stay safe and when soldering, use care not to run solder across places that will make a short.
Good Luck and I hope this helps
Ed Meshechek ( Radio Man )
NC Electronics
Mills, Wyoming
307-266-4675

Dec 19, 2008 | Standard (CRT) Televisions

1 Answer

Insignia 32" Tube TV NS-RTV32


The vertical output IC LA7847 is failing. It will likely fail permanately and you will have just the horizontal line. The set will require service. Just do not run the set very long in this state. That thin white line can likely burn into the crt phospher and will show all the time thus ruining the glass picture tube...

Jun 05, 2008 | Standard (CRT) Televisions

1 Answer

Problem with my insignia tube tv!!!!


if that look like horizontal line shuld be vertical problem. check vertical ic around it of resistor& capacitor. good luck!

May 26, 2008 | Insignia NS- 27" TV27 TV

1 Answer

Tv not working


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 08, 2007 | Sanyo DS31590 31" TV

1 Answer

Beautifull picture except for a jiggling black line in pricure


your tv is having horizontal problem take it to a tech in order that the hrizontak deflection circuit be checked it also might have abad yoke

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1 Answer

Thin horizontal line across picture


I really dont understand the problem Could we see a picture of this please?

Jun 14, 2006 | Toshiba 35A44 35" TV

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