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Zenith TV B27A24Z, Vert Size Adjust

Zenith TV model B27A24Z, manufactured 1999, the vertical size is slightly stretched beyond the top & bottom of screen, else ok, no other distortion. Is the vertical size adjustment via a pot or service menu/remote...what is the service code/procedure? the only/main PCB is Zenith part # 9-2067.

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

Posted on Feb 28, 2014

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SOURCE: 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

Posted on Oct 20, 2007

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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.

Mar 19, 2011 | Zenith SY2772DT TV

1 Answer

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

Vertical half a picture changed vert out ic & 220mfd 35v could it be vert yoke


If you have a hot air gun like used for dry the hair, apply hot air on the vertical section, if the trouble is solved sure is an electrolitic capacitor, find it hoting one by one with de solder, if not, may be is the defletion yoke, the impedance is not less then 7 ohms.Another probe for the yoke: disconect the vertical wires and supply 12 VAC with a transformer to vertical coil and turn on the tv and watch, if the vertical size is ok, the yoke is ok.

Mar 17, 2010 | Zenith B25A74R 25" TV

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

Mar 03, 2010 | Zenith C27A24T 27" 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

2 Answers

Vertical hold?


replaced this capacitors in vertical circuit.100 uf/50v,1uf/50v,1000 uf/25v,2.2uf/50v,47 uf/50v.this might not as exact as what is on ur tv.but, just replace those capacitors and see the result. hope this help u....

May 09, 2007 | Sanyo DS31590 31" TV

2 Answers

Screen Size is Too Big


There should be a vertical height adjustment control potentiometer near the vertical output IC on the right side of the PC board near the front section of the TV that can be adjusted to shrink the picture vertically. Be careful not to short anything out or getting yourself shocked in the process if you decide to try to adjust it yourself. Good luck. This chassis has also been known to have bad solder connections in that area also, so don't man-handle the printed circuit board roughly.

May 23, 2007 | Zenith D32D51 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

2 Answers

SHAKING IMAGE, STRETCHED IMAGE


Like I said last night cobra there is a vert shaper cap off the jungle/drive ic usually a smaller value and will check good but its bad. Or the b+ filter cap off the fly has caused sysmtoms like this as well. Good Luck

Apr 14, 2006 | Dell 828FI 15" CRT Monitor

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