Question about Televison & Video

3 Answers

TV comes on and works fine, after some time lines scroll.

It is like a vertical and horizontal hold go out. Once I turn the unit off for awhile I can turn it back on and it will work.
I can open the unit and change boards and also have a place to buy parts and get the part numbers.

Posted by on

  • 2 more comments 
  • timnj07052 Mar 12, 2009

    This is a Vizio 47" LCD Model Number: VO47L HDTV10A



  • timnj07052 Mar 12, 2009

    I ordered the part, I will let you know how it goes.

    Thanks

  • timnj07052 Mar 26, 2009

    So, I replaced the main board and I get the same thing. What next??

  • timnj07052 Mar 30, 2009

    So, I could not find my Voltage meter. I had to go buy one. I have checked all the power and it is well with in range (24va required, output is 23.5va)



    What now?

×

3 Answers

  • Level 3:

    An expert who has achieved level 3 by getting 1000 points

    Superstar:

    An expert that got 20 achievements.

    All-Star:

    An expert that got 10 achievements.

    MVP:

    An expert that got 5 achievements.

  • Master
  • 1,170 Answers

Is it vertical roll? Or horizontal roll? It could be both.

This is caused by loss of vertical and/or horizontal synchronization of the scanning lines that produce the raster.

It is usually caused by a defect in the electronics section called the deflection circuitry.

You may be able to adjust it back enough to get it working if you can find the vertical or horizontal "hold" controls (they may be called by some other name). They are sometimes seen at the on-screen display section, sometimes on the front or back panel and sometimes inside the back cover. On newer sets it is factory fixed and their are no user adjustments. So, you might have to poke around until you find them.

If you cannot find them, or if you do find them and they don't adjust enough to lock in the picture then you will need servicing and the cost will be to replace the IC or transistor that produces the hold lock on the deflection system.

Hope this leads you the right direction.

Good Luck

If my solution proves useful please accept it.

Regards
Arjun

Posted on Mar 31, 2009

  • Level 2:

    An expert who has achieved level 2 by getting 100 points

    All-Star:

    An expert that got 10 achievements.

    MVP:

    An expert that got 5 achievements.

    Sergeant:

    An expert that has over 500 points.

  • Expert
  • 320 Answers

Check the power voltage .may be its an over voltage problem that is going in to the main board so due to that the component getting over heated and due to that this is happening.check out the pcb board voltages.this will clear the doubt.

Posted on Mar 26, 2009

  • Level 3:

    An expert who has achieved level 3 by getting 1000 points

    Superstar:

    An expert that got 20 achievements.

    All-Star:

    An expert that got 10 achievements.

    MVP:

    An expert that got 5 achievements.

  • Master
  • 10,594 Answers

It sounds your TV lose Video Sync signal during function and get video sync signal back when you give it rest.

Possible cause can be lose connection or dry solder joints in video signal section. It would be fine if you post / comment back with model and brand of TV.

Posted on Mar 12, 2009

  • Shahid Electronics
    Shahid Electronics Mar 12, 2009

    In my opinion, problem is in Main Board of Vizio TV.
    Please click Shop Jimmy and see main unit of this TV including price info.


×

1 Suggested Answer

6ya6ya
  • 2 Answers

SOURCE: I have freestanding Series 8 dishwasher. Lately during the filling cycle water hammer is occurring. How can this be resolved

Hi,
a 6ya expert can help you resolve that issue over the phone in a minute or two.
best thing about this new service is that you are never placed on hold and get to talk to real repairmen in the US.
the service is completely free and covers almost anything you can think of (from cars to computers, handyman, and even drones).
click here to download the app (for users in the US for now) and get all the help you need.
goodluck!

Posted on Jan 02, 2017

Add Your Answer

Uploading: 0%

my-video-file.mp4

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

×

Loading...
Loading...

Related Questions:

1 Answer

Why comes white vertical line on my t.v?


Horizontal scan output fault. Check the connections to the deflection yoke from the main board. If you wish to get some details; check the site linked here. Pull up older posts. Surf the site with patience. http://electronicshelponline.blogspot.com/

Jan 27, 2015 | LG Televison & Video

1 Answer

Need help with horizontal hold on 1971 Sylvania TV


it is better to use audio video input of your tv .syncronisation problem in the Rf stage cannot be solved easily.

May 24, 2014 | Televison & Video

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

NEEDS VERTICAL/HORIZONTAL HOLD ADJUSTMENT


Their is no more you can do.
Their are no "hold" controls on TV's anymore.
Power Supply failure.
NO YOu can not buy a "Powers supply"

You need a professional.
Stop using the TV until it is repaired.
Call the manufacturer to find you nearest authorized service center.

MR. TV Sales & Service Inc
Milwaukee, Wisconsin 53405
(414) 762-8600
Established 1974

Mar 24, 2009 | Sony KP-51WS520 51" Rear Projection...

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 Televison & Video

1 Answer

Polaroid ttm-2401


To me, sounds like a picture tube issue. horizontal / vertical controls don't fix it. then its dead.

Jun 22, 2008 | Polaroid TTM-2401 TV

1 Answer

Scrolling Ghost Lines


Maybe what you should do is try unplugging the wii, or you might have bad cords, my last piece of advice is maybe the audio cords are messed up?

Dec 26, 2007 | Nintendo Wii Console

1 Answer

Picture reduced to a horizontal line across center


sounds like the vertical, more info ctechnicians.com

Dec 21, 2007 | Hitachi 35UX80B 35" TV

Not finding what you are looking for?
Televison & Video Logo

Related Topics:

83 people viewed this question

Ask a Question

Usually answered in minutes!

Top Televison & Video Experts

The Knight
The Knight

Level 3 Expert

71754 Answers

Electro Med Services...
Electro Med Services...

Level 3 Expert

6694 Answers

yadayada
yadayada

Level 3 Expert

68038 Answers

Are you a Televison and Video Expert? Answer questions, earn points and help others

Answer questions

Manuals & User Guides

Loading...