Question about Toshiba 50HX70 50" Rear Projection Television

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Toshiba HD Projection TV

This morning the screen on my tv became scrambled and then the t.v. shut off automatically. I unplugged the t.v. and plugged it back in and the same thing happened. You can hear sound but the image is scrambled and the t.v. will now only stay on for a couple or minutes.

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Convergence amp ic bad
http://home.earthlink.net/~oleg.filippov/ConvergenceFix.htm
http://cmpalmer.blogspot.com/2006/11/fixing-my-own-tv-part-ii.html
http://www.hdtvoice.com/voice/showthread.php?t=28929
Or send to ptscorp.com
http://www.hdtvoice.com/voice/index.php?s=

good luck
please mark the post with a fixya

Posted on Feb 26, 2008

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I have a JVC model HD-52G886 tv. that loses sound.


Replace or have replaced the Audio board in the set----a lot of them fail.

Mar 12, 2012 | JVC HD-52G786 52" Rear Projection HDTV

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Screen is scrambled. Working fine until I unpluged the TV one day. Is it a fuse?


If it looks 3d or warped its a convergence problem

This is a very common failure on these projection sets and a fairly simple DIY fix. All projection sets including Samsung, RCA, Sony, Philip Magnavox, Panasonic, Pioneer, Akai, GE, JVC, Toshiba, and others at some point will have the same problem.

Common Symptoms include....


  • Screen looks 3D
  • Colors don't line up
  • One or more colors can't be adjusted when using the convergence menu.
  • Screen is bowed or warped.
  • TV shuts off after powering on. Power light will blink. TV may also make a chirping noise.
Here are some images of convergence problems.


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69189a5.pngSOLUTION #1

For more more examples and find a fix using this link on Fixya http://www.fixya.com/support/r2861467-solution_video_looking_whiteish_dull

Or goto the site www.TvRepairKits.com for the parts and instructions on how to fix it yourself

Apr 22, 2011 | Hitachi 51F500 51" Rear Projection...

1 Answer

HL-P4663W - picture is scrambled - tv problem or cable box problem? have directv hd


Tries tv and box unplug,replug back like an hour later.The box now should have it software updated and tv resetting itself.Tv shoud be working again.Still have the same problems,tv the cause main tv Tuner signal board is dying.Get an estamate from shops and get it repair.

Feb 18, 2011 | Samsung HLP4663W 46" Rear Projection HDTV

1 Answer

Picture colors scrambled


Ur convergence it dead,Know how to solders?Buy a convergence kit to repair.These websites have the kit.Tv repair World.com,Tv Repair Kits.

Dec 12, 2009 | Toshiba 57H82 57" Rear Projection...

1 Answer

Toshiba projection tv with lines on screen


I have seen a lot of sets where the problem only happens when the set is first turned on---99% of the time one of the two STK-392-110 CONVERGENCE chips this set uses is Flakey--intermittant---The only way to know is replace both of the convergence IC's and see what you have---a bad IC can cause the set to shut down---and sooner or later the set will just shut down and not come on at all.

Let me know if you need more information about this type of repair as I have done hundreds of sets with this type of problem----every one I have ever seen where the convergence was intermittent----replacing the two IC's cured the problem.

REGARDS, SD TECH

Oct 01, 2009 | Toshiba 53H71 53 in. Rear Projection...

1 Answer

Toshiba 52 inch TV turns on then blacks out.


Unplug the power to the TV and HD cable box, wait 5 min. Plug TV and HD cable box back in.Everything is working like new. Go figure.

Sep 29, 2009 | Toshiba Projection Televisions

1 Answer

Projection TV Screen is scratched/Speakers Don't work


u can buy new screen toshbia.com tv parts sears.com tv parts cost i have replace 1 before screen 300 bucks be very careful glass extremly thin thin will crack good luck

Aug 06, 2009 | Toshiba Projection Televisions

1 Answer

Other inputs not working on rear projection toshiba


check for progressive scan and interlaced setting also verify if you have component hook up that it auto maticall chooses your resolution because if your tv is waiting for 1080i and you send 1080p it will not always work and if it expects 1080i and you send it 480i(s-video or rca connection) it may not automatically flip

Apr 14, 2009 | Toshiba 42H81 42" Rear Projection...

1 Answer

HDTV CABLE NOT HOOKED UP/WORKING


COMP 1 and 2 are for 480i/p sources. Hook it to the 1080i capable on the back. Also make sure the HD DVR is outputting 1080i not 720p. The Mits can not disply 720p and will show a scrambled screen if you try to.

Jan 31, 2009 | Mitsubishi WS-65809 65" Rear Projection...

1 Answer

Lightning strikes on screen and takes awhile to warm up then fine


sorry its not an easy fix at all. im sorry wat you have to hear, but do you have kids? if so, they probably bumped into or hit the screen. that would result in permantly damaging the screen

Aug 22, 2008 | Toshiba 50H81 50" Rear Projection...

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