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Re: screen went wide
I don't think this set has a aspect or for that matter a width adjustment so that leaves a shop repair---what has happened is width likely has increased and oddly enough it usually means a cap in the Horizontal sweep area has opened--I say that as it is the most common way--if a short set will shut down.
On most of these there were issues with bad solder connections developing in the Sweep circuit where your issue is likely to be.
I would if you are able get in the set and remove that board and look carefully under the Transformer for any bad or slightly cracked solder connections, I can't tell you how many of these sets I have fixed that had this issue--lots.
I attach a photo of what this type of part looks like, similar but not the exact one---there is only ONE part in the set that will look like this.
What most people do not understand is a open connection or even a part that is open (as opposed to shorted) can cause all sorts of issues.
Part is called a High Voltage transformer or Flyback Transformer, both names are the same part and sets have been using this type of part for well over 50 years.
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Jul 21, 2013 - Ive had this tv for almost a year and the screen has never given me problems, but just recently all the HD channels are stretched. ... If your Vizio is like my 47" it has 4 Picture Modes - Wide, Normal, Zoom and Panoramic. ... Why isnt my viziotv able to play full screen hd channels?
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.
2. Use the Arrow buttons to highlight the Wide icon. Press OK.
3. Use the Arrow buttons to highlight your desired screen mode and press OK:
• Normal preserves the content's original aspect ratio. Since the 4:3 aspect ratio is not large enough to fill the TV's screen, black bars are added to the left and right of the display image.
• 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.
images may appear wider than intended.
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.
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.
You can set the picture size by remote control itself.
You can vide 480i format programmes in three picture sizes. 4:3, 16:9, and ZOOM
You can change the picture size by pressing the PICTURE SIZE button on the remote control.
4:3 Picutre size
To fill the screen, the top and bottom edges are extedted more widely, although the center of the picture remains near the former ratio.
If receiving a 4:3 programme, the image size is displayed in its originally formatted proportion.
16:9 picure size
This image displays the size of standard 16:9 with black bars at the top and bottom.
If receiving a 4:3 programme, the image is displayed with black bars at the top and bottom and stretched wider.
NOTE: If a fixed bar remains on the screen for a long period of time, the image can become parmanantly engrained in the screen and cause subtle but permanent ghost images. Never leave your TV for long periods of time while it is displaying these images.
Zoom picture size [for 16:9 formats]
The entire picture is uniformly enlarged --it is stretched the same amount both wider and taller (retains its original proportion). The right and left edges of the picture may be hidden.
1) Power your wide-screen TV on and turn to a channel that is displayed with bars on the side. You need to leave this channel on to ensure you have properly adjusted your wide-screen TV.
2) Find in your TVs settings where you can "stretch" the picture. Refer to your wide-screen TVs owner's manual for specific instructions. Some TVs may not refer to this adjustment as "stretch." You will be able to find all the information your looking for in the owners manual.
3) Adjust settings back to normal if you want to watch a program shown in 16:9 format. Keeping the screen "stretched" will cause programs shown in 16:9 format appear zoomed in, making the picture look really different.
Hi my name is Eric,
I hope I can help you with your issue ,
There are a few buttons to adjust the picture size on different make TVs and even on the Cable/Satellite remotes .
First look on the TV remote, set it to Full ,Fill or Just.
Then on the Box remote stretch is usually best.
On the box remote set the output resolution to 1080i only
And use 16x9 when if offers a choice.
Cable remotes use the # key as a zoom button.
Due to the fact there are 16 size/Formats available (3 or 4 being transmitted now). you may have to hit the zoom/stretch button on some HD channels.
But with these settings the picture will mostly stay full and help you avoid image burn from the edges being not on the edge.
Hope this helps, if it has solved your issue please click accept
But if you have more questions please respond and I will reply asap
This is a quote of what Sanyo told me: "The aspect ratio can only be changed
when the unit is in the video mode." So I tried switching modes with the input button and it worked but went to like a letter box/wide screen type of picture, which doesn't help me. We have dishnetwork and on the Panasonic plasma we can adjust the ratio with their remote so I have two options there but not with my Sanyo unfortunately. Hope this helps
With projection sets, there is typically several settings for which you can display an output. You probably have a "wide" or "stretch" as a setting for the tv. What you want is normal, or some setting which doesn't result in a stretch. Widescreen projection tv's try to stretch 4:3 output into the widescreen setting, but usually this just results in the middle being in focus, and the outer 20% to be stretched on each side, bluring the edges.
Try to manipulate as many "tv settings" as possible. For most sets this is only available with the original remote. If you don't have the original remote, changing these settings could prove difficult.
you might be getting more supply from regulated power supply if you get wide pictureor width have to be adjusted by width control.
but if it stretchs out & lose some of the picture on the right and left edges it might be due to horizontal output section.
1 loose contact in connector.
2 some capacitor might be defective in h/section
please do not open the set unless you know about high voltage in tv set.