Question about Sanyo DS31520 31" TV

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Screen split with black bar through center, top of picture shows in bottom

Sanyo DS31650 31" TV On power up the TV screen is split with wide (1/10th screen) horizontal black bar through center of TV. The bottom of the TV video picture appears in the top half and the top of the video picture appears in the bottom half. If I click the menu button half (bottom half)of the menu appears in the upper left corner (approx 1/4 of screen). After about three minutes the TV screen changes to a bright extremely narrow line running horizonatlly through the center of the screen with the rest of the screen black. Audio is normal. Unplugging TV and/or powering on and off occasional brings up a normal screen for about 10 -15 seconds, then the above process repeats. I see no adjustment knobs anywhere on the set.

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  • Anonymous Mar 20, 2014

    My sky box froze and after I rebooted it the picture came on the TV with the picture split. A black line a quarter of the way from the bottom.

  • Anonymous Apr 01, 2014

    the screen shows a black bar at the bottom and picture is just half of the screen

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  • Master
  • 3,130 Answers

It sounds as you desribe, the vertical output IC and or the b+ feed capacitor off the Hi voltage transformer feeding the vert. IC its required voltage. Not a really hard job to replace, but not for a handi person to do. This should be left to the professional, as there are no user serviceable parts inside this set and with the HI voltage and the safety issues its best to call somesone to assist you with this repair. Good Luck

Posted on Jun 14, 2006

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Posted on Jan 02, 2017

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CHANGING THE SCREEN ASPECT RATIO: ( From Manual )
The TV can display images in four different modes: Wide, Zoom, Panoramic, and Normal. Each mode displays the picture differently. To change the screen aspect ratio:
1. Press the MENU button on the remote.
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• Wide stretches a 4:3 aspect ratio picture to the edges of the screen. Since the picture is being stretched, the display image may appear distorted. If the program is already formatted for widescreen viewing (1.85:1 or 2.35:1), then black bars will appear on the top and bottom of the display image.
• Zoom expands images with black bars to fit the screen.
• Panoramic expands the display image to fill the screen.
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If you are watching widescreen (1.85:1 or 2.35:1) content, black bars will still appear on the top and bottom of the display image. This option is only available when the TV is displaying a 480i/480p source.

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Hi Anthony,

You're describing what is called letterbox and pillerbox. Letterboxing is when there are two horizontal bars - one at the top and one at the bottom of the screen with a wide picture between. Pillerbox is when there are two vertical bars - one on the left edge and one on the right edge of the screen with a tall picture between.

The settings on your TV (and on your cable box, satellite box, DVD player, etc.) tell the TV how to display a picture that will not fill the screen completely. If the program source (an older video-taped TV show, non-widescreen version DVD, etc) was not originally "shot" or saved in widescreen format, the TV offers you a choice on how to display the image. They ask if they should stretch or zoom to fill the screen (and you have to deal with the skinny / tall images or lost portions of the picture); or maintain the aspect ratio (not stretching or zooming) by leaving a part of the screen blank (grey or black) by inserting bars left and right or top and bottom of the screen.

Start out by telling the devices that send pictures in a format that matches you TV's screen ratio. I am assuming you've got a wide screen HDTV which would mean it should be set to "16 x 9" (a.k.a. 16:9) ratio display. If you have it set for 4 x 3 (a.k.a. 4:3) you should change it. Look for a setting on your TV that asks about stretching, zooming, etc. as this will be an issue when receiving picture from an off air antenna on your house when a TV station is airing an older, non-wide screen format TV show or movie.

TV signals provided by Cable TV or Satellite provider must be HDTV type signals. If you have the standard TV service (non-HD) no picture sent by them will ever fill the screen. This is because Standard Definition TV (SDTV) is not capable of those types of signals. You will have to bump up your subscription to HDTV service to get full screen pictures.

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Hello
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