Question about Samsung SPN4235 42 in. Plasma HDTV

1 Answer

2 Problems - Small white horizontal line. Black Lower part of screen

I have 2 problems. One is a single white line that runs horizontal across the screen about 3 inches from the bottom. Have had this problem for a while, but just dealt with it.

Now, occasionally I lose some of the lower part of the screen about 2 to 2.5 inches. It's normally a problem when the tv is turn on and the image will eventually return on it own after some time. The rest of the image is fine.

Any solutions?

Posted by on

  • NinoC Sep 21, 2008

    Thanks for the suggestion, however the problem is not a result of the screen display settings. The problem will occur with any of the display settings..

  • NinoC Sep 22, 2008

    I'm using the component cables for the main source (Verizon FiOS). Happens with DVD input (on S-Video) as well. This model does not have an HDMI connection. The problem is sporadic, but when it does happen, no matter what source is used, it still has a black bar at the bottom of the screen. It does look like it's in letterbox mode, but it will cut off part of the program that is being displayed.



1 Answer

  • Level 2:

    An expert who has achieved level 2 by getting 100 points


    An expert who has answered 20 questions.


    An expert that hasĀ over 10 points.


    An expert whose answer gotĀ voted for 2 times.

  • Expert
  • 61 Answers

Try changing the TV's display format from widescreen to fullscreen.

Posted on Sep 21, 2008

  • Aladdin Minic
    Aladdin Minic Sep 21, 2008

    Are you sure it isn't the cable provider, check to see if its a problem with the inputs. Try upgrading to another source like HDMI. I it could either be faulty wires or the inputs for the TV are fouled up.



2 Suggested Answers

  • 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

  • 92 Answers

SOURCE: I have 2 problems. One

sorry to say it but sounds to me like it's on its way out the door or has been dropped

Posted on Dec 15, 2008

Add Your Answer

Uploading: 0%


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



Related Questions:

1 Answer

I have 5 white dotted lines running horizontally across my nuvi1490lmt. Does anybody know why this would be?

Yes, this is caused by a defective LCD display, There is nothing that you can do to make them go away. It is caused by a defective transistor in the LCD display logic that is either stuck on or off. The transistor controls a single horizontal line across the screen. The only way to fix this problem is to replace the display.

Oct 26, 2013 | Garmin nuvi 1490T GPS Receiver

1 Answer


White lines is either the screen or more likely the graphics chip. try a reinstall see if that fixes it.

Dec 27, 2011 | Computers & Internet

2 Answers

JVC Model no: AV-48WP34 Projection Problems

OK, problem seems in convergence section of TV and can be confirmed by testing voltage supply as mentioned in schematics.

You can download service manual copy from Manual Zone for small fee and it has schematics, exploded views. board location, part numbers info.

Let me know if you need further help.

May 07, 2009 | JVC Televison & Video

1 Answer

I have a KV27FS210 sony wega trinitron tv. It turns on and has a single horizontal line across the center of the screen then buzzes shows a continuous zigzag line from the top to bottom of the screen with...

The single horizontal line is a problem with the vertical circuit. Look for a small flat id attached to a heatsink that should be marked LA7837 or something similar. Try resoldering the pins of this IC first. If that does not resolve it, replace the IC.

Keep us posted.


Feb 20, 2009 | Sony FD Trinitron WEGA KV-32FS100 32" TV

2 Answers

RCA-single horizontal white line

Your vertical deflection IC is bad.

Nov 04, 2008 | Televison & Video

1 Answer

Toshiba 27D46 Black Screen - White Horizontal Line

I fixed the problem by taking it to a repair shop

Apr 24, 2008 | Toshiba 27D46 27" TV

1 Answer

Black display with a horizontal white line in the middle.

Middle going across the screen from left to right??
This unit is plagued with bad solder connections in the comb filter board and flatpack underneath the comb filter board. These connections can cause any odd number of problems in video display. If it is that it's not expensive - virtually no parts. If it's a single line across the screen could also be the vertical circuit involved.
My suggestion is to have it estimated at a reputable shop and take it to them rather than the more expensive pu/del charges.
If you would like go to and locate a servicer from there. Kinda like going to the AMA to find a doctor...
Hope this helps!

Apr 18, 2008 | Hitachi 32UDX10S 32" TV

Not finding what you are looking for?
Samsung SPN4235 42 in. Plasma HDTV Logo

297 people viewed this question

Ask a Question

Usually answered in minutes!

Top Samsung Televison & Video Experts

The Knight
The Knight

Level 3 Expert

74990 Answers

Donald DCruz
Donald DCruz

Level 3 Expert

17130 Answers

Jerry Greenberg
Jerry Greenberg

Level 3 Expert

1689 Answers

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

Answer questions

Manuals & User Guides