Question about Sanyo DS31590 31" TV

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Vertical hold problem

Tv works fine,except the vertical hold is not working,screen will fluctuate in size fairly consistently,and sometimes it will work fine.anybody know what this is?and also if i dont repair myself,does anyone have an idea of what a repair like this would cost?

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My 12 year old Sony Trinitron KV-32XBR200 still works pretty well except that it cuts off about 25 - 30 scan lines at the bottom of the screen when cold, then gradually improves somewhat to missing only 15...

No,tv have cold solders inside the tv like vertical IC or around the area.Have a soldering iron,a roll of solders,also know how to do basic soldering?Yes.Take the tv aparts,take a back plastic of the screw driver tabs all around the main pcb,will see the vertical changes,take out the a/c power sourced,resolders those area,will fix this problems.

Feb 10, 2011 | Sony FD Trinitron WEGA KV-32FS120 32" TV

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I have a little B/W TV which is working fine except for the lower part of the screen that seems "folder over itself", like some kind of scanning error. I tried adjusting the v-hold, but it didn't...

This is a vertical problem in the set that needs parts replaced and would not be cost effective to repair, but either you will need somebody skilled to fix the set or a tv technician.

Jan 10, 2011 | Standard (CRT) Televisions

1 Answer

White lines at the top 3-4 inches of the screen.

well its all new now could be bad caps or vertical i.c. okay if you have a esr meter check around the i.c. for a leakey cap good luck

May 13, 2009 | Insignia NS- 27" TV27 TV

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

1 Answer

Horizontal Line through middle of TV screen

This is usually a bad elect capasitor or a bad solder connection on the vertical IC, The capasitors will be close to the vert chip..Sometimes you can clear problem with a light tap on the TV, if so then suspect bad solder.

Mar 31, 2009 | Standard (CRT) Televisions

1 Answer

Just a line on the screen?

Your tv has a failure in the vertical circuit. Most likley since you explained that it was coming in and out you could fix it by Resoldering the connections on the vertical output IC. Replacing the vertical output IC would be your next step after this.


Mar 04, 2008 | Panasonic CT-2784VY 27" TV

2 Answers

Mitsubishi CS 40503 TV

  • sometimes the entire screen is normal size
  • from this statement it is clear that there is a loose contact in tv
  • please check for loose contact in some components
  • loose contact in connector
  • loose contact in print.
  • if you are not tech person then take help from him.
  • hope this will help.
  • good luck.

Oct 11, 2007 | Mitsubishi CS-40503 TV

1 Answer

The picture is jumping, sometimes the tv shows three of the picture.

The solder joints on the vertical output IC have cracked. This is a common problem in those sets and resoldering the pins of the vertical outpit IC will cure the problem.

May 28, 2007 | Zenith C27A25 27" TV

1 Answer

Vertical hold?

replaced this capacitors in vertical circuit.100 uf/50v,1uf/50v,1000 uf/25v,2.2uf/50v,47 uf/50v.this might not as exact as what is on ur tv.but, just replace those capacitors and see the result. hope this help u....

May 09, 2007 | Sanyo DS31590 31" TV

1 Answer

Picture is cut off on top and bottom

Thats is not going to fix your problem. You have a bad vertical output IC and or a bad capacitor in the vertical drive or output circuit. Good Luck

Mar 31, 2007 | Zenith C27A24T 27" TV

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