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Picture too big

I have a Zenith television(model#SM3589BTB or BT8). I've looke on the internet for a manual with no success. How do I adjust the size of the picture?

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Re: Picture too big

Normallly, if the picture size button on the remote for the television1.gif ( If it has a picture size or format button) does not achieve the desired affect, then, a cable box or a satelite box is where the change4.gif needs to be made.
For example:
A Motorola Cable box needs to be set up to go to a wide screen or zoom when an analog signal is detected.
Some Dish Network boxes have Size buttons on their remotes and also in their main menu.
It's difficult to determine the repair without knowing the types of the peripherals.
Hope this helps.

Posted on Jan 27, 2008

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To do this adjustment, you should enter the service mode option. If you wish to get some details; check the site linked here. Viewing it in "Mosaic" will make surf easy.
Service mode entry, adjust and exit procedure to many popular brand TVs are given.

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The picture is oversized and the printing as in the stock ticker or in the sports scores can only be seen a little bit on the bottom. Can't find anyway to resize the picture.

Zenith sets, like most others now, are adjusted electronically through a service menu. You'll need your original remote control (or a Zenith-brand universal replacement with a MENU key) to access the menu. Press and hold the MENU button until the channel number and time display goes away, then press 9, 8 , 7, 6, ENTER. This puts you into service mode.

In service mode, CHANNEL UP and CHANNEL DOWN move through the different settings, and VOLUME UP and VOLUME DOWN change the values. Make sure you write down the original value of anything before you change it so you can put it back if necessary. One of the reasons the manufacturers hide the service menu is because the set can be damaged by incorrect settings to some of the parameters.

On some models, you can't get to all the parameters unless you change one called F MODE from 00 to 01. You might need to do this on yours.

The list of parameters varies by model and features. I haven't worked on a Zenith in a long time so I don't remember exactly what yours says, but you want to find two settings for V SIZE (vertical size) and V POS (vertical position). Adjust the size first by lowering the value until the top and bottom of the screen are black. Then adjust the position so the picture is centered (black strips close to equal size). Finally, increase the size until the picture fills the screen again. It's normal to adjust for a little overscan, meaning you push the top and bottom a little bit out of view. If you stop too soon, on some channels you might see flashing lines at the top of the picture.

When you're finished adjusting, turn the TV off to exit service mode. If you needed to change the F MODE setting, put it back to 00 first. Your picture should be properly sized after all this.

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Are you able to adjust the size for the TV? Usually it's because you're on the zoom setting, for example.

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If you are using a DTV coverter box, you may have changed the aspect ratio with your remote control. look for a button marked "aspect" or "picture size" use that to change size.
If you have a cable box, you may have a similar button.
Or you may find a picture size adjustment on your TV remote.
If you do not have "aspect" button on your remote try going to set up menu and look for picture size.
Older TVs used to have a vertical size adjustment at the back. look in the manual.
If none of the above, you have a biiger problem with the TV internal parts needing attention

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There is a service menu that controls such things as picture size etc. and that's likely where adjustments have to be made.
Unfortunately I'm not sure how to get into it. That information should be here somewhere, search for your tv brand and "service menu".

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You may be able to adjust the picture width and height if there are controls. Look at the back of the set for holes labeled V.Size and or H.Size, these are the Horizontal and Vertical size controls. You'll need a small screwdriver (3/16) to insert into the control and adjust.
If there are no controls then it may need to be serviced as there are capacitors that have failed which are causing the picture to change size.

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service menu code is 9876, i think. and you can manually adjust the focus using network54's post on "blurry z27x22d".

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