Question about Televison & Video

1 Answer

No Color on Zenith SG5257S

Color detection was intermitent when turned on and now displays only black & white.

Posted by on

  • Nexium7 Nov 26, 2007

    Color decision appears to be done right after turn on and then locked in until power off. Best place to get a schematic??



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 who has answered 1,000 questions.

  • Master
  • 1,139 Answers

Hello Nexium7,

The best place to get a schematic would be from the manufacture Zenith, However you can try The cost for the schematic is $23.99.

I would suggest you start by using a color bar generator to send a known good signal in to the RF connector on your tV then go to the output of the video detector to look at the video signal, what you should find will be on the schematic, which should be the video signal with color burst if the color burst is not present or low in amplitude this is your problem and the trouble is happening before the video stages. If the burst is ok the you will have to test along the video path until you get to the point that the burst signal is no longer present, and then you will know the stage which the problem is occurring.

In any event you will need a schematic, multimeter, oscilloscope, and signal generator (color bar and raster purity)

Thank you,

Posted on Nov 26, 2007


1 Suggested Answer

  • 2 Answers

SOURCE: I have freestanding Series 8 dishwasher. Lately during the filling cycle water hammer is occurring. How can this be resolved

A 6ya expert can help you resolve that issue over the phone in a minute or two.
Best thing about this new service is that you are never placed on hold and get to talk to real repairmen in the US.
The service is completely free and covers almost anything you can think of (from cars to computers, handyman, and even drones).
click here to download the app (for users in the US for now) and get all the help you need.
Good luck!

Posted on Jan 02, 2017


Add Your Answer

Uploading: 0%


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



Related Questions:

1 Answer

Picture on my 62 inch Zenith rear projection screen is black and white.

Look first to see if you have color when a DVD etc is connected and used via a rear audio and video input.

If same issue that way--set has a color or chroma circuit problem.

If not there are some possible things for you to try.

Jun 02, 2012 | Zenith Televison & Video

1 Answer

My zenith model IQC60H94W tv has a black and white picture, all three lamps appear to be working but the picture is in black and white?

Some time i may be the simple thing and as dumb as you may feel. If you have kids or other that push buttons. Check the menu setting make sure the color setting is turned up 3/4-1/2. yes some times we dont thinks it can be that simple. let us know what you find.

Aug 30, 2010 | Zenith IQC60H94W 60" Rear Projection...

1 Answer

DVD viewing shows in black and white

you have to change color system of dvd(ntsc, pal,) normally dvd remote will p/n it to change color system,,otherwise u have to change color system of ur tv

Mar 15, 2010 | Zenith Z25X22S 25" TV

1 Answer

LCD projector not displaying color only black and white

Did you ever see color on this projector?
It could be the composite input cant detect the "color burst" 3.58 mhz signal for chroma.

Have you tried a different input?
That could help you track down what the problem may be.

Oct 31, 2009 | Televison & Video

1 Answer

DVD disks just play in black and white. No color.

This is because of the audio video format issue. You select the TV type to auto (Advisable) or to the appropriate selection such as PAL or NTSC in the DVD player to get the better output with the color.
This selection you usually find in settings > Video setup> TV Type

Aug 06, 2009 | Zenith XBV443 DVD Player/VCR

1 Answer

Zenith television no color except when in the menue screens

The onscreen menu does not rely on the color circuit to produce a color menu.
The most common issues with that symptom are bad color crystal on the main board or a shorted transistor on the main board next to the video jungle IC

Mar 13, 2009 | Zenith B25A10Z 25" TV

1 Answer

Color problem

is it a crt tube screen?

Oct 21, 2008 | Zenith Televison & Video

1 Answer

1999 zenith 52 inch rear projection screen t.v.

IS the screen white retrace lines ? Have you looked into the CRT lenses while they are on with a signal applied through the input to see if an image is displayed in the lens lens of the crt? Let me know what the answer is to these two questions and we will go to the next level.

Apr 10, 2008 | Zenith B50M88W 50" Rear Projection...

1 Answer

Black and White

There some thing that you had done to get black and white on your tv with the dvd ,check your connections.if the connections are properly connected then the tv could be having a problem in the video input, have a tech look at it.

Apr 03, 2007 | Zenith C13A05LG 13" TV

Not finding what you are looking for?
Televison & Video Logo

Related Topics:

117 people viewed this question

Ask a Question

Usually answered in minutes!

Top Televison & Video Experts

The Knight
The Knight

Level 3 Expert

74990 Answers

Donald DCruz
Donald DCruz

Level 3 Expert

17130 Answers

Cindy Wells

Level 3 Expert

5297 Answers

Are you a Televison and Video Expert? Answer questions, earn points and help others

Answer questions

Manuals & User Guides