Question about Zenith SY2779DT TV

1 Answer



Posted by on

1 Answer

  • Level 3:

    An expert who has achieved level 3 by getting 1000 points


    An expert that got 10 achievements.


    An expert that got 5 achievements.


    An expert whose answer got voted for 500 times.

  • Master
  • 3,130 Answers

The verticle output IC has a bad connection on it or is going bad. There are no user replaceable parts inside this set, as its a solid state set and all parts are soldered in. If your aware of the HI voltage issues, and know how to do alighnments on a tv, then you can order the entire board as a module from If you dont then your gonna have to seek a pro to assist you in this repair, as these sets hold HI voltage inside thenm even after they have been unplugged. Good Luck

Posted on Jun 26, 2006

Add Your Answer

0 characters

Uploading: 0%


Complete. Click "Add" to insert your video. Add


3 Points

Related Questions:

1 Answer

Good picture but a squigly line

Will you please provide more details> Is the line across the screen at its middle?

Jan 02, 2013 | Sony FD Trinitron WEGA KD-36FS130 36" TV

1 Answer

Horizontal line running on my GAO Panasonic

If the white line is in the middle of the screen and runs left to right the problem is in the vertical circuit of the set.

Either a bad part in that area or at the vertical output chip bad solder connections (most with this will react when set banged on side).

Note: leaving set on with only that line on screen will sooner or later burn that mark into the face of the screen--not fixable.

Nov 05, 2012 | Panasonic CT-34WX50 34" TV

1 Answer jvc television, im watching then turn off have a power but sadly it has a line at the middle of monitor and turn off.

You have a vertical amplifier failure or dry solder on the vertical IC. When cold if the TV works for some time and then you are getting a thin white line in the middle of the screen after some time -- its a dry solder problem. The vertical IC runs very hot in the TV and develops dry solder after a few years.Will run when cold and switch off when hot.
Are you well versed with electronics to do the repair yourself ?. If so, revert back and I will guide you if you mention the TV model #.

Apr 11, 2011 | JVC Standard (CRT) Televisions

1 Answer

My tv is 2 years old and in the last month or so in the middle of a show the screen will go black and a red line runs down the middle and it lasts for about 5 min and a little pop sound and the picture...

It appears you may have had a line collapse caused by a poor connection in the line output stage, it would be a matter of resoldering around this area. Now that you say it will come on could indicate that a component has now failed as a result of the line collapsing, more than likely the line output transistor has now also failed & would need replacing.

Jul 01, 2009 | Jensen Q2749J 27" TV

1 Answer

Green picture

a green screen on power up with retrace lines. At shut down a point appears in the middle of the screen. Sounds like either a shorted G2 grid, or bad flyback. If a phospher flake has shorted the grid in the tube, you can sometimes have luck by using a megger set at 1000VDC, to burn away the short. This is usually caused by the line HV going too high causing the anti-UV protection to kick in so fit a dummy load 40W lamp instead to the line output to allow measurements to be made.

Oct 19, 2008 | RCA 20F512T 20" TV

2 Answers

Theres a line threw my tv.

It has a problem in the vertical sweep circuit that puts a nonlinearity in its output and you see the glitch in the normally gradual sweep as a line. Since a hit upside the set seems to help, you should just resolder the whole vertical circuit area (doesn't take long) and see if that cures it. If not, start replacing the electrolytic capacitors in that area.
Hope Ya Fix It!

Jan 08, 2008 | Standard (CRT) Televisions

1 Answer

Jvc av-29ts2ek

It sounds like a vertical deflection problem. You mentioned you had a white HORIZONTAL LINE in the middle of the screen. If this line runs from left to right across the screen it's in Verticla deflection. If it runs from top to bottom, it's in Horizontal deflection. I am assuming the problem is a Vertical deflaecion problem. The repairs necessary are most likley to replace the vertical capacitors or the verticla deflection chip.
Good Luck
NC Electronic Mills, Wyo USA

Jan 05, 2008 | JVC TM-2703SU 27" TV

1 Answer

TV Screen

im pretty sure you cant fix that you probably need to buy a new one.. i know that because my somputer has a white line that runs right down that middle, not all the time but sometimes. my father looked into fixing it and he found out that you have to buy a brand new screen or tower or something like that.

Dec 31, 2007 | JVC AV-32020 32" TV

1 Answer

Occasional discoloring, tv randomly turns from green tint to no tint

Loose connections in CTR board ( picture tube), resolder it.

Aug 05, 2007 | Insignia NS- 27" TV27 TV

1 Answer

Tv not working

this symptom, sometimes called the tube light effect, it is characterised by a bright thin horizontal line across the middle of the screen. this symptom is caused by a breakdown in the vertical deflection circuit. hence maybe the trouble maybe in the vertical oscillator, amplifier or output circuits. but if all i have said is not clear to you, better bring it to a qualified tv technician. good luck!

Mar 08, 2007 | Sanyo DS31590 31" TV

Not finding what you are looking for?
Standard (CRT) Televisions Logo

Related Topics:

104 people viewed this question

Ask a Question

Usually answered in minutes!

Top Zenith Standard (CRT) Televisions Experts

The Knight
The Knight

Level 3 Expert

66413 Answers

matt martin
matt martin

Level 3 Expert

1187 Answers

Anastasio Benjou

Level 2 Expert

99 Answers

Are you a Zenith Standard (CRT) Television Expert? Answer questions, earn points and help others

Answer questions

Manuals & User Guides