Question about Zenith Z27X22D 27" TV

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Zenith Z27X22D Service Menu Codes needed

I've got a Z27X22D, older Zenith with a significant vertical overscan. It is such that it's impossible to read crawls and such at the bottom of the screen. I came across a code to get into the service menu, but it only covers screen position, not screen size, and I need to reduce the vertical size a smidge. The code I had (that doesn't seem to access the size menu) was Menu (hold until menu disappears but channel info is still up), 9-8-7-6- Enter. Anyone have a clue for any other service menu access code?

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  • tomteriffic Oct 03, 2007

    Me again. I should add that, at one time, a TV service tech friend told me over the phone how to adjust the vertical and horizontal size, so it's got to be in there someplace.

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Significant vertical overscan. It is such that it's impossible to read crawls and such at the bottom of the screen. I think this problem is a tv problem. it is due to vertical section. please change electrolytic capacitor in vertical output section. it will be ok. it is common problem can be fixed at home & very simple.

Posted on Oct 06, 2007

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How do I enter the service menu on an Emerson EWF2004 CRT Television? (Pictures of the OVERSCAN ISSUE will be provided if needed.)


Older sets had vertical and horizontal size controls. If you have the horizontal size control, turning it counterclockwise will reduce the size of the picture horizontally and reduce the overscan.

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Schematic diagram serviceinfo


Schematic diagrams are in PDF, and cannot insert by this window. If you wish to get some details, http://electronicshelponline.blogspot.com/ Pull up older posts.

Dec 22, 2013 | Zenith Z27X22D 27" TV

1 Answer

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

2 Answers

Are there internal picture controls for the WS-55315?


Good Day; OPTION MENU "MENU 0370" SERVICE MENU. CAUTION document settings before any adjustments are made. V = vertical, H = Horizontal. Good Luck, big IRISH.

May 11, 2008 | Mitsubishi WS-55315 55" Rear Projection...

1 Answer

Overscan


For Factory Menu, press MENU 1 3 7 0
Service Adjustment Mode, press MENU 2 3 5 7
Convergence Mode, press MENU 2 3 5 9
Use the VIDEO or VIDEO buttons to enter two different groups of adjustments
Use the VIDEO / VIDEO buttons to toggle thru the adjustments
Use the + and - keys to adjust
When finished with adjustments, press ENTER to save
Press MENU twice to exit service mode
Hope this helps. You should look for the vertical height or size adjustment. Do not adjust anything you don't know about.

Dec 28, 2007 | Mitsubishi WS-65313 65" Rear Projection...

1 Answer

Service menu instructions needed


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

Sep 16, 2007 | Zenith Z27X22D 27" TV

2 Answers

Picture is dark


Does not seem like a bad tube alone. Could also be that the Video output Transistors Supply Filter capacitor having dried out. It is a 100mfd 160V capacitor, which on replacement will improve the brightness of the immage. And yes, you could also try increasing the heater voltage (Filament Voltage)of the Pictuire tube, this will definitely increase brightness, but will reduce the life of the Picture tube. You gotta think - 10 year old TV, should I repair or exchange and get a new one???

Mar 03, 2007 | Zenith Z27X22D 27" TV

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