Question about Apex Digital PF2720 27" TV

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Vertical size adjustment

Just need to adj. vert size a bit. Can anyone help?

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There is a black box appearing on about 75% of the screen. How can I remove it???

Posted on Oct 30, 2008

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Zenith TV B27A24Z, Vert Size Adjust


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.
http://electronicshelponline.blogspot.com/
Service mode entry, adjust and exit procedure to many popular brand TVs are given.

Feb 27, 2014 | Zenith Standard (CRT) Televisions

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Model tc1393. how do i adjust vertical size


caps bad or vert, chip bad or cold jiont

Jun 23, 2010 | Emerson TC1351 13" TV

1 Answer

Picture roll up and down


Standard CRT televisions have a vertical roll adjustment,usually on the back at the bottom.
It may look like a white finger-knob (about the size of a pencil eraser) with a small screwdriver slot in the end...or it may be a roll-wheel...either way, it will be labeled "vertical" (or just "vert").

Make slow adjustment to the vertical until the roll stops.

*Use a solid signal for the adjustment, like DVD, VCR or cable...a weak signal can cause a bit of roll, too.

Apr 11, 2010 | Sony Standard (CRT) Televisions

1 Answer

Hqw can I adjust the vertical hold on a 36" sharp tv. it is built in and not easy top access the back


That's not the vert. hold...that for the vert col on the flyback...don't touch that! You need a service remote control to adj.vert and the right codes

Apr 03, 2010 | Standard (CRT) Televisions

1 Answer

The vertical size needs adjusted


adjust the flyback,then adjust the vert up-down on tv

Feb 13, 2010 | RCA Standard (CRT) Televisions

1 Answer

Picture image does not look full when showing people


There is a service menu adjustment. I have seen several of these sets with bad components in the horizontal width control circuit. maybe your other set has a width problem. put both on the same channel. like cnn with the ticker on the bottom. what is the difference in size?
the width adj. procedure is: with the set off. use the remote, enter. MENU>5>VOL+>POWER . the set will come on in the service mode. then with the menu adj. buttons you can step threw the service menu to H.WIDTH adj. until full picture. also VERT. HEIGHT. when you are done adjusting make sure you press the mute button and watch the word WRITE flash from green to red or you won't save your adjustments.

Jan 07, 2010 | Sony FD Trinitron WEGA KD-27FS170 TV

1 Answer

Zenith tv picture is larger than screen


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.
Good luck

Dec 30, 2009 | Zenith H32G48S TV

1 Answer

Vertical Stretch


You need to adjust "vertical height" in the service program. You need to put the set in "service mode" to do this adjustment. If you google "enter service mode RCA F32665" you should find the procedure. It will be listed in abbreviated letters such as VERT SIZE or VERT HT. Follow the instructions for entering service mode and saving the data closely!! The data you change will be listed as a number between 1 and 63. The number will only need to reduced by a small amount and you can still see the picture behind the data and watch it shrink as you adjust the number down.Always burn the new number to memory (if required) before exiting service mode. Good luck

barneyluc

Dec 01, 2008 | RCA F32665 32" TV

1 Answer

Need access to service menu to adjust vertical size


No service menu for this set. Sounds like you have a bad yoke winding on this one....accordianman

Oct 25, 2006 | Emerson SpongeBob SquarePants TV

4 Answers

Thin horizontal line


Defective components in vertical deflection and output circuit inclusive of vertical output device, coupling capacitors, and yoke connectors. Passive devices such as electrolytic capacitors, coils, and resistors to/from power supply circuits. If your tele is more than 10 years old dump it and get a newer product. $100 USD is a fair price to diagnose and attempt service, depending on age and configuration. Older products may not have replacment parts available at any repair cost. There may be a pot for adjusting the vertical size. If so, it may be dirty. If you can find it, try adjusting it which could clean it. BE CAREFUL -voltages are very high.

Mar 20, 2006 | Sharp 27H-S60 TV

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