Question about Toshiba 42H83 42" Rear Projection HDTV-Ready Television

2 Answers

Toshiba 42wt29b. screen keeps turning blue

When i switch tv on in morning after a few minutes it keeps turning off with the screen turning blue and no sound and it stays like that for a few seconds and then the picture returns but only for a few seconds. i am really distressed please can you help me. wait to hear from you. i tryed switching tv off from main switch and then back on again but no luck iv tryed to switch sky system on and off but still no luck, iv even changed all the old scart sockets with new ones but no change.

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  • riaz ahmed Jun 28, 2006

    any suggestions

  • Anonymous Mar 31, 2008

    I have an older (about 6 years) Toshiba 19" flat screen, not HD. In the morning it takes about 5 minutes of repeatedly turning the set on and having it click completely off until it warms up and stays on. Any ideas other than getting a new set?

  • Anonymous Mar 29, 2014

    It is an HD tv after a few seconds the screen turns blue

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  • Master
  • 3,130 Answers

MMMM Hard call here. The fact that it does try to come on blue maybe an indication that the power supply regulator circuit is good. It could also be a shorted blue tube and when it comes on its overloading the screen drive and the set goes into overload protection shutdown. The real way to see Would be to pull off the blue crt socket as well as the Hi Voltage lead on the crt and see if the set comes on without blue. If it does Your gonna need a pict tube. If it dosent then troubleshooting along the switched power supplys would be neccassary.. BUT I advise you THAT IF YOU HAVE NO EXPERIENCE TROUBLESHOOTING TV SETS PLEASE SEEK A PRO TO ASSIST YOU AS THERES VERY HIGH VOLTAGE INSIDE THESE SETS EVEN IF THEY ARE UNPLUGGED. GOOD LUCK

Posted on Jun 29, 2006

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  • Contributor
  • 26 Answers

First, try another video source, such as a dvd or vcr directly into the video input. do you still get the same problem? if so, it is the tv, if not, then it's your sky system (satellite receiver?)

Posted on Jun 29, 2006

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Posted on Jan 02, 2017

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SOURCE: Power light flashing/ no picture

I have the same problem. The only way to get the TV to come on is to unplug it, but once you get it back on it turns itself off again in a few minutes.

Posted on Jul 19, 2007

  • 1 Answer

SOURCE: Toshiba TP50G60 Big Black Square Covering the screen?

try the closed caption adjustments. i had a tv that did the same thing and the captiong did it. turn caption off nd try.

Posted on Dec 19, 2008

tvrepairbiz
  • 63 Answers

SOURCE: Toshiba tv screen goes black every 5 minutes with sound still on

Is it ok when you watch regular TV thru the cable or sat?

Posted on Sep 03, 2009

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