Question about Zenith H25F36DT 25" TV

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Zenith sentry 2

Picture having horizontal stipes like old tv's with horzontral control adjustment, but this unit has no adjustment. is there any hidden menue adjustment?

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  • Anonymous Oct 24, 2008

    picture small -

  • robyn619sak Nov 30, 2008

    I dont have a remote control for this TV and can't find the control panal,the TV only gets 4 chanels

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Picture horizontal in the tv

Posted on Oct 24, 2008

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1 Answer

27 inch Zenith TV Vertical too big


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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Can be a case of vertical collapse. If this is the case, then the vertical oscillator and/or the vertical driver circuit are faulty. .

You can take you problem directly to zenith. They have a customer service post available here

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Hello
There are Horizontal and Vertical size controls behind the back cover that need to be adjusted using a hand held tool. This adjustment requires a trained tech. High Voltage from the set is dangerous.
However, there maybe some limited controls that may help through the on screen menu.
To get into the setup menu, you need the original Remote that came with the TV.
Hold the Menu Key down until a box appears in the corner of the screen, then press 9,8,7,6 Enter. this takes you to the service menu. Just scroll through the items to find Horiz Size and Vert Size.
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1 Answer

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try to solder any loose connection

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1 Answer

Horizontal lines across the top 2 - 3" of the screen


Sounds like you have some capacitors that are needing to be changed in the vertical circuit. The cost I cannot quote but, it probably won;t be worth the cost as replacement TV's are much cheaper now. Zeniths and other brands for the longest time have used not controls inside the TV, they are technician adjustments through a service menu only.

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Sorry to be the bearer of bad news bud, but thats the beginning of the end for your picture tube. The tube is what the industry calls a soft picture tube. On a set like this it wouldnt be feasable to replace unless you get a good deal and or you realy like the set.

Jun 03, 2006 | Zenith H25F36DT 25" TV

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