Question about Zenith SY2772DT TV

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Zenith SY2772DT Thin grey grey lines or overcast on screen with a blury menu and black letters tend to blurr slightly accross the screen to the right.

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SOURCE: my zenith tv is vibrating very loud the tv screen

The signal board is suffering from weak and bad capacitors. You are probably asking about a flat screen TV. This is a common problem for any of these TVs,the symptoms you describe. Hope this gives you an idea as to the problem. Thanks for asking and show a few hands of support!

Posted on Feb 20, 2011

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Cannot change source

Main board has gone bad in it. Not a real expensive or difficult repair to make. The main board is where all your cable and DVD players plug in. Good Luck and if I can be of further assistance pease feel free to contact me.

Dec 07, 2013 | Zenith SY2772DT TV

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Very thin black vertical line moving across tv screen left to right on tv

The screen voltage to the picture tube is more than normal. Adjust it by the help of screen pot-meter integrated with Line Output Transformer. Visit the site named 'Electro-help' for more details. Check this link and select the site named above. View it in 'Flip card' option, which can be selected from the drop down box menu at the left top corner or the display window. It will make search easy.

Aug 05, 2012 | Panasonic CT-20SL14 20" TV

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Does anyone have any repair solutions for a Zenith SY3272DT that has sound , but the picture is now only a thin band that goes from left to right ?

The vertical scan output section of your tV is faulty. It might be an IC failure or loose solder terminals at this section. Your set need service. Never advance brightness control to this set at this condition. It may leave a thin black line across the screen, which will be irrepariable. Contact any experienced service technician.

Apr 21, 2012 | Zenith SY3272DT TV

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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

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My tv will only display ch. 2 my little 5 yr. old was playing with the settings it is a 15 yr. old zenith tv

Depending on your market, it sounds like all of the other analogue channels have been terminated (not your son's fault) in order to provide stronger HD signals. You may need to run to wallmart and get that $50 decoder box.

Apr 21, 2009 | Zenith SY2772DT TV

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One line accross screen

It's problem created by Horizantal or vertical line check your york wire soldering may it is dry sold and check for no dry sold on PCB

Mar 09, 2009 | Zenith Z36H32D 36" TV

2 Answers

RCA CRT TV thin white horizontal lines

Look for bad capacitors in the vertical deflection amp, and in the pin amp sections. This is common on most of these types of TV sets.

The caps tend to go high in ESR with age. It is best to use an ESR meter to find the bad caps. It will be a lot faster than workign out waveforms with a scope.

Wikipedia explanation about capacitor ESR:

Jerry G.

Apr 23, 2008 | Standard (CRT) Televisions

1 Answer

Washed out colours and thin red lines across the screen

your problem is in red video circuit. please get it done with skilled tech.

Oct 05, 2007 | Panasonic CT-32SL15 32" TV

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White line horizontially through middle of picture

A repair like this is in the vertical drive/output section of the TV set. It could be a simple capacitor causeing this problem or a combination of the capacitor and the output IC. A repair like this should not exceed 120 to 150 US. Is it worth that to you? How much can you replace it for? Good Luck PS please dont forget to rate this thread.

Oct 25, 2006 | Bush 5693D 24" TV

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