Question about Televison & Video

1 Answer

In the middle of screen appeared a thin yellow green line. Now the line is about one inch wide and half the length of the screen, 52 in screen. Is this a problem that can be solved? TV is about 3 1/2 yrs old and has not been dropped or any other type of damage.

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
  • 2,712 Answers

It looks like the green CRT is kaput and will have to be replaced. It could even be that the video IC is faulty. If this is the case, then you may have to get a competent local technician to check the TV and get the necessary parts replaced.

If you think you can handle soldering, etc and try a DIY, click HERE for step-by-step instructions along with pics on how to do it.

You could try doing a hard reset, although I think it may not work, as the green light is not glowing at all...Anyway, if you want to try, simply disconnect all the cables and power supply from behind the TV, wait about 4 hrs and reconnect.

In my honest opinion, though, I suggest getting the TV checked by a qualified technician even if it costs a bit more. TV capacitors and insides carry high voltages and could be potentially dangerous if a novice tries to open it up...

Hope that helps...Should you have any further questions, please feel free to post them here.

P.S. Before you assign a rating, please make sure that the issue is resolved or you are satisfied. If not, please post back as to what you did, and/or any other questions you may have, and I will try to assist you as best I can. Please do not assign an ‘Inappropriate’ or ‘Thanks for trying’ rating if your issue is not resolved after the first response itself, as sometimes a bit of to and fro dialogue may be necessary before we can find a fix or an answer to your query.

If you find that the solution/answer I provided led you to, or resulted in a fix, please close the ticket with a FixYa! rating. I would be very grateful for your show of appreciation.

Thank you for using FIXYA!


Posted on Apr 30, 2008

  • Swilin Sampson
    Swilin Sampson Apr 30, 2008

    The convergence ICs are attached to a heat sink. The CRTs
    plug into the convergence board - make note of the proper positioning of the Red,Green,Blue.
    The Red CRT is on the extreme right

    There are several screws to remove and you need to remove/open the
    "jumpers" between this board and the one next to it. I strongly
    suggest you replace both ICs and all the resistors. If you simply replace the
    ICs and there's still a fault in the board or you didn’t replace ALL the bad
    resistors, the ICs will blow again either right away or very quickly and you
    will have to start all over again.

    The IC’s are on the back of the heat sink, generally, so you
    may not see them at first glance.

    There could also be some broken solder on the convergence board
    itself. Go over the board carefully and look for any cracked soldering. If you
    want to be extra sure, go over all the soldering points one by one with a
    soldering iron. You need to test the circuits with a volt/amp/resistance meter,
    usually when the board is in the TV, with the TV on, to see if the readings are
    as indicated in the service manual.

    The hard part about testing a board for cracked solder is that sometimes the
    circuit will be fine because the solder is "touching" while other
    times it may not be. This is often why items will work when warm and not when
    cold, due to the thermal expansion.

    Once again, I don't recommend doing it unless you have an
    electronics repair background.
    You could cause further problems to the TV
    and/or void your warranty. TVs also have high potential for causing electrical

    Having said all that, if you still want to go ahead with a board swapout or
    repair, bear in mind that PCBs and ICs are sensitive to electrostatic
    discharge, so make sure you follow all the necessary electrostatic discharge
    precautions to protect the chipsets and circuitry:

    • Find or download a proper
      service manual for the TV set so that you can prepare

    • Remove metal objects from
      your hands

    • Stay grounded as you touch
      PCB boards (grounded wrist-straps are available from electronics and
      computer supply stores)

    • Handle boards by the board
      material and not by the chips or electronic components

    • Stay grounded as you remove
      them (yes I repeated myself but its so important!)

    • Keep the board out of direct
      sunlight and away from any sort of magnetism or static electricity sources

    Remember, there's high voltage in the TV, so don't
    electrocute yourself.

    Good Luck.

  • Swilin Sampson
    Swilin Sampson May 03, 2008


    Just wanted to inquire if your issue is resolved, or if there is anything
    further I can do to assist you…

    If you find that the solution/answer I provided led you
    to, or resulted in a fix, please take a moment to close the ticket with a FixYa!
    rating under my solution.
    I would be very grateful for your show of appreciation.

    Should you have any further questions, please feel free to
    post them here.

    Thank you for using FIXYA!





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

There is a vertical black bar along the left side of my TV. It started as a thin yellow/white bar and has grown to be about 2 or 3 inches wide, blocking that portion of the screen.

The LCD wafer has gone bad, and more lines will begin to appear over time. It can be replaced but the cost may be comparable to replacing the entire television.

May 22, 2015 | Televison & Video

1 Answer

I got multiple thin colors on the middle of the screen

My 3-year old 52-inch Toshiba flat panel TV (Model # 52RV53U, Serial # AM409000295) developed a display issue (purchased Aug. 2008, manufactured July 2008). Vertical multicolored lines appeared on the screen just left of center. The band of thin vertical bars is 5.5 inches wide. The lines are about 1/16-inch wide. They are stationary, always exactly in same place. They over-ride any other picture on the screen (no transparency). They are there all time even with no video inputs to the TV after the unit is turned on. See picture #1. The TV works well in every other respect, but, obviously, it is annoying to watch the picture with the color band blocking about 1/6 of the picture.

Further info, pics, comments, and updates on my Facebook page at

I already swapped out the TCON board with no improvement and replugged the TCON board cables with no improvement.

Most likely it is the flat panel tab bond failure (panel made by Samsung). Further updates will be on my Facebook page.

Aug 17, 2011 | Toshiba REGZA 52RV530U LCD TV

1 Answer

Yellow Stripe Down Middle of Screen on Laptop

This system has a VGA port so you can plug in an external monitor. You can buy one for less than $130 based on the Sunday ads. Other than that, it is new laptop time.

Jul 31, 2010 | Acer Computers & Internet

1 Answer

Top, middle of screen there is a constant flicker. The flicker starts at the top, middle and goes about half way down the screen.

I have a blue line about 3/4 inch wide from the top right to the middle bottom. ( not a straight line ) I replced thr projection lamp with no fix to the problem. I added an additipnal fan and cleared up the problem. On furthe investigation I replaced the air filter and kept only the original fan and the problem was solved. Can you explain this.

Dec 06, 2009 | Zenith D52WLCD 52" Rear Projection...

1 Answer

Thin red line, green line and yellow line going across the screen

the problem is vertical collapse,i am not so sure you can trouble shoot this on your own but you can send the board to eithor pts electronics or tristate module for repair
to get a price get the number off the sticker--left hand board(looking from the back) it will start CTC195---- write down entire number before you call them

Sep 02, 2009 | RCA P52926 52" Rear Projection Television

1 Answer

Vertical white line down centre of Soniq PT42SH plasma TV.

One of your "X" buffer boards is defective. In Panasonic plasma tv's they are located at the bootom of the set and connect directly to the plasma diplay panel via a thin ribbon cable. The board you want to replace will be directly in line with the discolored vertival line in the picture. The part number is on the circuit board and usualy starts with "tnp..." or "txp..."

Jun 01, 2009 | Televison & Video

6 Answers

Vertical line on LCD TV Panel

Had this same issue on right side of 52" about 1 inch from side but had 3 vertical lines that disappeared after 40 minutes. Have Samsung LNT5265FX/XXA and about 16 months old. LCD Panel itself had to be replaced to fix it, fortunately had extended service plan

Oct 17, 2008 | LG 42LC2D 42 in. LCD HDTV

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

Related Topics:

81 people viewed this question

Ask a Question

Usually answered in minutes!

Top Televison & Video Experts

The Knight
The Knight

Level 3 Expert

75311 Answers

Donald DCruz
Donald DCruz

Level 3 Expert

17130 Answers

Cindy Wells

Level 3 Expert

5384 Answers

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

Answer questions

Manuals & User Guides