Question about Toshiba 51H84 51" Rear Projection HDTV-Ready Television

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Toshiba TN55X81 screen shifted

I have a TN55X81, I'm getting vertical bar down the middle of the screen.
It happens for all sources of input, Cable, DVD, and Wii. I tried the convergence from the menu but the cross bar look centered.

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Horizonntal circuit seems not to be working

Posted on May 26, 2008

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Posted on Jan 02, 2017

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Panasonic pt 52lcx35


We recommend that you test other inputs and devices on the TV to see if the lines appear only on 1 device or type of cable connection.

Keywords: thin, red, pink, line, lines, bars, bar, vertical, up, down

Oct 22, 2013 | Televison & Video

1 Answer

What powers the picture tubes in a 55 inch model tn55x81


The tubes in the projection set among other things need: 200 volt screen source, filament voltage and high voltage.

Note that if set for example has a loss of vertical or horizontal sweep this will be detected and the tubes will be shut off to prevent the tubes from getting a burn mark on their screens.

Nov 06, 2012 | Toshiba TN55X81 55" Rear Projection...

1 Answer

I have a toshiba model tn55x81 and i get sound but no picture


The tubes could be shut off for a number of reasons- no 200 volts, no filament voltage, no high voltage.

set will also blank (cut them off) if a vertical or horizontal deflection problem---

things would have to be tested for voltages etc to see what the issue is.

Nov 06, 2012 | Toshiba 55H70 55" Rear Projection...

1 Answer

Screen went black with a vertical rainbow line down the middle


Failue of the vertical section, could be the drive, the power to the section or even some discrete componets. Unless you are familiar with electronics , get some help to ceck out on these circuits, could not be major but to get themain culprit will require good probing.

Jun 29, 2010 | Panasonic PT-56TW53 56" Rear Projection...

1 Answer

Center bow on picture top and bottom with 1" black showing


Projection TV2_bing.gif sets have several common problems listed below.

Problem #1) Convergence

Symptoms:

  • Screen Looks 3D
  • Colors wont align
  • Screen may look distorted
  • No Audio/Video - TV2_bing.gif makes a chirping sound.
Problem #2 CRT Fluid has clouded over. Symtoms
  • Dull looking video
  • White looking video
  • Halos around objects
  • Red/Orange looking video

You can see some examples and find a fix here...

bb0cf99.pnghttp://www.fixya.com/support/r2861467-solution_video_looking_whiteish_dull

Mar 06, 2010 | Toshiba TN55X81 55" Rear Projection...

1 Answer

I have a Toshiba TN55X81 that has sound but no picture. Turned it one one day and no picture. I don't see any error code blink when I power on the set.When the set is turned off a line flashes across the...


It shouldn't be the convergence chips. You may have blown a pico fuse on the power board.
You should be able to safely remove the convergence IC's and try the tv without them as they only do image correction.

Oct 13, 2009 | Toshiba TN55X81 55" Rear Projection...

2 Answers

Toshiba Tube TV 32AF45 Picture Squeeze in middle


Try unplugging TV while it is on and let sit for 20 minutes. Re-connect and see...
It sounds like your horzontal control is bad. It requires a new circuit board.
Mastersage!

Feb 18, 2009 | Toshiba 43H70 43" Rear Projection...

1 Answer

Wobbly lines on my Toshiba TW56X81


This sounds like a input problem. The source of the signal may not be well matched to the expected input spec. To test, see if the "SETUP" menu items are clear. If so it is something to do with a cable, connector, or configuration of the source.

Mar 12, 2008 | Toshiba TW56X81 56" Rear Projection...

1 Answer

Toshiba TN55X81


Blue Convergence IC is bad = change both for reliable repair..
located on largest heatsink on chassis.............T.

Feb 02, 2008 | Toshiba TN55X81 55" Rear Projection...

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