Question about Toshiba TN50V71 50" Rear Projection Television

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TOSHIBA TN50V71 POWER LED COMES ON BUT NO SOUND, NO PICTURE

When power bottuon is depressed, your hear the normal on clicking sound of a relay ,however no picture or sound comes on.could this be a horiz deflection circuitary probs? if yes how can i get a copy of the schematic to find the transistor?

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6 Suggested Answers

6ya6ya
  • 2 Answers

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Posted on Jan 02, 2017

techman
  • 3130 Answers

SOURCE: Power on but no picture or sound

Your problem is from the power regulator IC . Its an str type and has to be an original from tosiba or its parts distributors. Now you may have caused more problems as alot of peeps do trying the set over and over again thinking Oh the set will rest its self.. Nope sorry sir if a set goes bad and you try it once , and it dosent come back on . Its time to seek a repair person to repair and troubleshoot the set for you UNless your a technician? If your not Dont try to repair a tv as these have non serviceable parts for the consumer to replace! And can bite ya in the butt, if your not carefull. We techs cannot teach ya overnight how to fix something. Only assit and to point ya in the right direction. Good Luck

Posted on Jun 24, 2006

snakehead
  • 1074 Answers

SOURCE: Toshiba 50A61..power comes on but no picture or sound

my friend your tv got hit before you did the disconnections storm hit sets are a piece of work to fix, it is left with the circuit board burned.my advise is to buy a new tv.good luck

Posted on Jun 23, 2007

ctf1800
  • 4402 Answers

SOURCE: Toshiba 43A61 - No Picture, no sound

If your set all of a sudden won't come on, e.g., the screen is blank, but the LED on the under the screen next to the on/off switch keeps flashing, then there may be an internal fault on the set that needs to be reset.
To force the reset, try this:

  • Unplug the set and wait a few seconds
  • Replug and see if the video returns
Whenever the set senses an internal fault through its monitoring circuitry, it essentially shuts down the set. The flashing LED provides the indication that a fault has been detected. Removing power to the set resets the monitoring circuitry. When plugged back in, the circuitry again does a check of the system. If it finds that there truly is a problem, then the set is shut down and the LED will again flash. In this case, you need to call a service tech. Most of the time, however, the unplug/replug routine is enough to get the set up and running.

Posted on Dec 11, 2007

Slinteriors
  • 8617 Answers

SOURCE: tz61v61 toshiba 61 rptv theaterview

If the relay clicks you most likely have a leaky diode or bad transistor in the stand by or start up circuit. There is a manual available for that model called. Toshiba Power Supply and Shutdown circuit Troubleshooter. Its available at the following link. It gives step by step instructions so you can figure out exactly whats wrong with your set. The site emails it too you after you place your order and they also provide free unlimited tech support so you will have a resource for help if you need it. I am one of their on line support techs. I highly reccomend that Manual to any one with a toshiba that will not power up. Here is the link.
http://servicemanuals.vstore.ca/

Posted on Apr 12, 2008

  • 1 Answer

SOURCE: TOSHIBA TV NO SOUND NO PICTURE, POWER LIGHT IS ON

I have a problem

Posted on Aug 11, 2008

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My tv will not come on but I hear a clicking sound when I turn it on and of does anyone no why


this is normal for most tvs . the click you hear is a relay that turns power on / off to parts of your power supply

please post your make / model and exact fault taking note of any flashing led's these normally flash out refrence codes that tell you what fault is on the tv

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gysgt2u1@yahoo

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I need to know how long do you have the tv?In the other word,approx. how many hours you have put into it?
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1 Answer

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You will need local tech help with this. 

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I have a 40" Toshiba rear projection TV that has just lost sound & picture. The red power LED is still illuminated and you can hear something like a relay occasionally click at the back of the TV....


You are probably hearing a relay that is connecting, then disconnecting power because of a fault in the power supply.
Most modern sets try to control damage when a serious fault occurs by shutting down instead of allowing something to burst into flame.
You need on-site help with this one.

May 05, 2008 | Televison & Video

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