Question about Zenith C27A24T 27" TV

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Blue screen I have a Zenith Sentry 2 from 1993. When I turn it on it only has a blue screen with faint horizontal white lines. It has sound when I plug in a dvd player.

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Re: Blue screen - Zenith C27A24T 27" TV Standard (CRT) Televisions

Try to solder any loose connection

Posted on Aug 16, 2007

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Why comes white vertical line on my t.v?

Horizontal scan output fault. Check the connections to the deflection yoke from the main board. If you wish to get some details; check the site linked here. Pull up older posts. Surf the site with patience.

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Error code 040 Philips CRT

It sounds that the fault is with excess blue on display. There have tw reasons for this. As you see diagonal lines (thin white lines, all over the screen, displays horizontally, at about an inch or so apart each other); the screen voltage should be suspected. If the screen voltage is more than normal, this kind of fault can occur. The second one, is related to its video output card. If there is any loose solder terminals, especially to its blue color output transistor, or related part/s. If this happens, the voltage at the blue cathode will go less than normal related to the other two [Red & Green] cathodes of the CRT. if this happens or the output transistor itself is leaky, this kind of fault can occur. You have to check by adjusting the screen voltage to a little less first. The screen voltage pot-meter can be located at the EHT transformer itself; marked as 'Screen'. Try this first. If it do not help you, replace the blue output transistor at the video output card [the card that can be located at the neck of the picture tube itself, will directly plugged on to its back]. Check all the soldering there first. Re-solder all the suspected solder terminals, by applying a little more solder. I hereby type in this details, assuming that, you're somewhat handy to repair this set, as per your descriptions.
If you wish to get some details, check the site linked here. Pull up older posts. Check the site in 'Mosaic' view. It will make search easy.
If you need any more assistance, please come over by FixYa comment.

Jan 03, 2014 | Standard (CRT) Televisions

1 Answer

Zenith tube tv has thin white lines but no picture and I can hear audio

Hello jreese, Hi, Most definitely its a horizontal output problem, your tv has no horizontal deflection to pull the screen vertically, the power transistor that produces the high voltage is bad, this needs to be replaced. definitely you always have sound, the audio section is a separate block from the high voltage block, go look for a technician to have this checked.

Mar 03, 2011 | Zenith B36A24Z 36" TV

1 Answer

When I turn my TV on, I have sound but only a horizontal white/color line across the screen. My TV is an old Zenith 25" floor model.

You can buy a new one for less than 200 bucks. I'd advise you do this. It sounds like you need a new
picture tube

Dec 31, 2010 | Zenith C27A24T 27" TV

1 Answer

Blue Screen with thin horizontal white lines

call the service person and dont try to open it other than in side of TV SET HAVING Hazard of electrical shock be handle most care fully .
and check video board and all.

Oct 19, 2008 | Philips Magnavox 20MS233S 20" TV

1 Answer

My horizontal blue line

Yes. Plan on spending about 85 to 125 bucks for a repair..accordianman

Feb 19, 2008 | Zenith C36A26 36" TV

1 Answer

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It sounds to me like you're describing the re-trace of the unit. It is repairable, and more so the sooner you get it to the repair facility.

Nov 21, 2007 | Sony FD Trinitron WEGA KV-27FS120 27" TV

1 Answer

Horizontal lines

it is due to electrolytic capacitor failure in vertical output section.

just get it replaced.

it very very common & minor problem.

good luck.

Oct 17, 2007 | Toshiba 27AF43 27" TV

1 Answer

Standby light flashing

This is possibly a sign that there is a fault condition. Short circuit line output transistor

Jan 23, 2007 | Sony FD Trinitron WEGA KV-29LS35 29" TV

1 Answer

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Flyback lines? Is the picture all white with no brightness control with faint horizontal faint lines? If this is what you are saying, the screen voltage could be bad, and if thats the case, the picture tube or the flyback itself could be bad. You could also have a bad connection on the crt socket

Dec 27, 2006 | Philips Magnavox 20MT133S 20" TV

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