Question about Hitachi 55HDT51 55 in. HD-Ready Plasma Television

2 Answers

Vertical, pencil-thin blue line appears after 10 minutes of viewing (any source)

This TV is about 20 months old and the problem first began about 3 weeks ago. After about 10 minutes of viewing, a vertical line appears. It originates at the top of the display, 3" from the left edge and extends down approximately 1/2 the height of the screen. The line is about the width of a Sharpie pen and blue color. The line appears in both broadcast and DVD source material. If the TV is turned off for several hours, the line will disappear temporarily. It's very consistent. I discussed this problem with Hitachi customer service. Other than checking and cleaning the control cable connectors that tie the AVC to the display, they're only advice was to call a service center.

Posted by on

2 Answers

  • Level 1:

    An expert who has achieved level 1.

  • Contributor
  • 1 Answer
Re: Vertical, pencil-thin blue line appears after 10...

Have 60 inch sharp television and it has a thin vertical thin blue line running through the screen. what is it the television still has clear picture.

Posted on Aug 02, 2013

  • Level 2:

    An expert who has achieved level 2 by getting 100 points


    An expert that got 10 achievements.


    An expert that got 5 achievements.


    An expert that has over 500 points.

  • Expert
  • 308 Answers
Re: Vertical, pencil-thin blue line appears after 10...

I would suspect a connection breaking down as the set heats up. A shop will probably have to put the set in a stand to hold it while they check for loose connections or defective components inside. Not a DIY job by any means. If this line went completely through the picture either vertically or horizontally and stayed there then this would have indicated a failure in the Panel itself. A thin Line any where on the screen consisting of one pixel in width is a Panel Failure according to Hitachi.

Posted on Jan 01, 2007

Add Your Answer

0 characters

Uploading: 0%


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


3 Points

Related Questions:

2 Answers

Vertical green line

EASY HOW TO FIX LG plasma TV - color bars - YouTube

? 4:45
Dec 16, 2010 - Uploaded by Tampatec
diy HDTV Plasma tv repair tv reparar the red green blue color stripe line vertical bars T- control t-con ...

I Have An Lg Plasma It Has A Green Line Down The Center What ...
i have an lg plasma it has a green line down the center what. .... Essentially I just disconnected the flat cable around where the vertical line was, sprayed it with a ...

LG 50PK550 Plasma Single Thin Green Vertical Line - Fixya
Mar 10, 2008 - Posted on Mar 17, 2012.

Jan 16, 2016 | LG Flat Panel Televisions

1 Answer

Thin vertical red line on my LG 50PC56

First you must clean connector contacts between plasma module and driver boards, if not solve the problem and continuing increment of wide red line, may be you must change plasma module to solve this problem,

May 27, 2010 | Flat Panel Televisions

1 Answer

So it began as one vertical line on my 52 inch Samsung that goes away after about 10 minutes. Now there are 3. But again, they go away after about 20 minutes. TV is a little over 2 years and not under...

If it is a plasma TV, may be the bad connections, you can try to reconnect the cables on the Y-buffer board.
If it is a LCD TV, the panel may need to replace.

May 04, 2010 | Flat Panel Televisions

1 Answer

My Sony KDL-32XBR4 has vertical lines for 5-15 minutes on startup

I have a 46 inch , Sony XBR 4 tv . The past week there has colored vertical lines that appear on the screen for about 10 minutes . Then they go away . What is the problem and solution?

Jul 10, 2009 | Sony BRAVIA KDL-40V2500 40 in. LCD HDTV

6 Answers

Vertical line on my 46" toshiba lcd tv

The only logical solution for the problems people are having for the toshiba regza's tv's is to get into a class action law suite..., they contiue to sell tv's with defective parts and refuse to help the customer that spent large cash to find out they last if your lucky 2.5 years, they are junk and anyone with one will soon find out./.......

Apr 03, 2009 | Toshiba Regza 46RV525U 46 in. LCD HDTV

1 Answer

Samsung 26inche lcd tv has a blue thin line acrross the left side

call the repair guy, he will be able to diagnose, prbably a bord problem.

Dec 23, 2008 | Flat Panel Televisions

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

1 Answer

Hitachi 42HDS69 Blue Vertical Lines

I think that you have dry solder joints on either the vertical scan board, the focus board, the line output stage, or the chroma panel. Hope this helps.

Sep 13, 2008 | Hitachi 42HDS69 42 in. Plasma Television

3 Answers

Thin Yellow Vertical Line - Samsung LNT4665F LCD TV

Unplug for 30 seconds from it's power source and then try it again. If that doesn't work, call Samsung for further troubleshooting and have your model number and serial number handy. Please be prepared to tell them how long the line is.

Mar 30, 2008 | Samsung LN-T4665F 46 in. LCD Television

1 Answer

Polaroid FLM 2632 HDTV

I hae replaced my polaroid FLM-2632 3 times it is a crappy tv same problem every time do not buy one

Dec 18, 2007 | Polaroid 3211TLXB 32 in. LCD Television

Not finding what you are looking for?
Hitachi 55HDT51 55 in. HD-Ready Plasma Television Logo

1,546 people viewed this question

Ask a Question

Usually answered in minutes!

Top Hitachi Flat Panel Televisions Experts

The Knight
The Knight

Level 3 Expert

66352 Answers

Donald DCruz
Donald DCruz

Level 3 Expert

17129 Answers


Level 2 Expert

223 Answers

Are you a Hitachi Flat Panel Television Expert? Answer questions, earn points and help others

Answer questions

Manuals & User Guides