Question about Toshiba REGZA 42 in. Flat-Panel LCD HDTV

2 Answers

I have a toshiba regza 42inch lcd for six weeks and this morning when I switched the tv on a long dark line appeared on the screen. Before I go to currys can some one please tell me whether it's something I can do myself to get rid of the line or is it something curry will need to deal with?

Posted by on

2 Answers

  • Level 3:

    An expert who has achieved level 3 by getting 1000 points

    All-Star:

    An expert that got 10 achievements.

    MVP:

    An expert that got 5 achievements.

    President:

    An expert whose answer got voted for 500 times.

  • Master
  • 1,099 Answers

Hello,
you can do this yourself by opening the back cover of the television
CAUTION: To prevent damage to the CRT phosphors, immediately turn down the brightness so the line is just barely visible. If the user controls do not have enough range, you will have to locate and adjust the master brightness or screen/G2 pots.

A single horizontal line means that you have lost vertical deflection. High voltage is most likely fine since there is something on the screen.

This could be due to:

Dirty service switch contacts. There is often a small switch located inside on the main board or perhaps accessible from the back. This is used during setup to set the color background levels. (On some sets, this is located on the CRT neck board and may be a jumper plug or other means of selecting service mode - not an actual switch.)

When moved to the 'service' position, it kills vertical deflection and video to the CRT. If the switch somehow changed position or got dirty or corroded contacts, you will have this symptom. Flip the switch back and forth a couple of times. If there is some change, then replace, clean, resolder, or even bypass it as appropriate.

Bad connection to deflection yoke or other parts in vertical output circuit. Bad connections are common in TVs and monitors. Check around the pins of large components like transformers, power transistors and resistors, or connectors for hairline cracks in the solder. Reseat internal connectors. Check particularly around the connector to the deflection yoke on the CRT.

Bad vertical deflection IC or transistor. You will probably need the service manual for this and the following. However, if the vertical deflection is done with an IC, the ECG Semiconductor Master Substitution guide may have its pinout which may be enough to test it with a scope.

Other bad parts in vertical deflection circuit though there are not that many parts that would kill the deflection entirely.

Loss of power to vertical deflection circuits. Check for blown fusable resistors/fuses and bad connections.

Loss of vertical oscillator or vertical drive signals.

The most likely possibilities are in the deflection output stage or bad connections to the yoke.

Posted on Jun 01, 2010

  • Level 1:

    An expert who has achieved level 1.

  • Contributor
  • 1 Answer

I need a replacement screen. Please help me find one.

Posted on Aug 13, 2010

1 Suggested Answer

6ya6ya
  • 2 Answers

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

Hi,
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.
goodluck!

Posted on Jan 02, 2017

Add Your Answer

Uploading: 0%

my-video-file.mp4

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

×

Loading...
Loading...

Related Questions:

1 Answer

WHY I HAVE GOT HARITONZAL LINES ON TOP OF SCREEN ON TOSHIBA LCD 37RV635D


sounds like the same problem as with most screens. it could well be the screen as gone

Apr 26, 2014 | Toshiba 37RV635DB Regza 37-inch Widescreen...

2 Answers

I have a 40" Toshiba


Any kind of black or colors lines on the tv LCD screen panel,not causes by u it appear by itself only can be repair by replacing the board that call the T-CON board.This T-CON board sit in the middle at the bottom of the tv LCD screen panel.Tries websites like Shopjimmy.com,Ebay.com to buy the refurbish T-CON board for the replacement.

Jun 24, 2011 | Toshiba REGZA 42 in. Flat-Panel LCD HDTV

1 Answer

42 inch toshiba\r\n tv screen


Dark picture. I adjusted brightness, but it keeps getting dark. It has vertical lines that can be seen in grey areas on the screen.

Dec 08, 2010 | Toshiba Regza 42RV535U 42 in. LCD HDTV

1 Answer

My 52" Toshiba Regza has a six inch vertical line just left of center that changes color as the picture changes. Some times it stays with the same pattern for quite a while. It goes away when I turn it off...


you must either change the t- con board, or the left board strip. it is dangerous because mines caught on fire. but most like since that strip is connected to the lcd screen u will have to replace the whole entire screen.

Aug 09, 2010 | Toshiba REGZA 52RV530U LCD TV

1 Answer

Connecting Compaq Presario CQ40 to LCD tv Toshiba REGZA '32'


Check your resolution output from laptop it maybe set to high for the TV to handle, also go to the Display Properties and ensure that the second monitor out is enable. Good luck!!

May 28, 2009 | Toshiba REGZA 42WLG66 42 in. HD-Ready LCD...

1 Answer

Toshiba 47WL T66


Correct, its problem of LCD Panel and will be replaced.
No alternate solution for vertical or horizontal lines in LCD Panels.

Nov 10, 2008 | Toshiba REGZA 47WLG66 47 in. HD-Ready LCD...

3 Answers

Black line


Called ghost lines or banding. I researched on toshiba thread LCD screen bad. I have same problem purchased HL196 4/07 problem appeared 1 year and 9 months ago no extended warranty. If still under warranty call toshiba. LCD screen more expensive then orginal price of TV. Should file class action lawsuit for selling defective screens. Lot of people having same problem. goforth2953

Sep 09, 2008 | Toshiba REGZA 42WLG66 42 in. HD-Ready LCD...

1 Answer

Weird lines on Toshiba REGZA


its in warranty ship it, the problem is actually not common but it is a problem it is related to the processor on the main board, and um don't trust salesmen to tell you about repair issues. They really don't have a clue. if you need a tv for to weeks then rent one for two weeks they are not that expensive to rent

Aug 23, 2008 | Toshiba REGZA 42WLG66 42 in. HD-Ready LCD...

2 Answers

Toshiba regza 42" lcd sound but no video


Holding the power button down for 10 seconds fixed this problem on my Regza 47"

Jul 01, 2008 | Toshiba REGZA 42 in. Flat-Panel LCD HDTV

Not finding what you are looking for?
Toshiba REGZA 42 in. Flat-Panel LCD HDTV Logo

822 people viewed this question

Ask a Question

Usually answered in minutes!

Top Toshiba Televison & Video Experts

The Knight
The Knight

Level 3 Expert

73691 Answers

Jaime Hernandez

Level 3 Expert

2315 Answers

Henry  Thomas
Henry Thomas

Level 3 Expert

1074 Answers

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

Answer questions

Manuals & User Guides

Loading...