Question about Toshiba 50H71 50" Rear Projection Television

1 Answer

Toshiba 50H71 Won't Come On

When powered on we hear a click but nothing happens. Red light flashes in the front panel. How can we fix this?

Posted by on

  • babygirl75 Dec 22, 2008

    Hi! Your response seems to be very insightful...is there any way you
    can help me to locate these parts you are referring to? I greatly
    appreciate your help!!
    Thanks Again!
    Kim

×

1 Answer

  • Level 1:

    An expert who has achieved level 1.

    Corporal:

    An expert that hasĀ over 10 points.

    Mayor:

    An expert whose answer gotĀ voted for 2 times.

    Problem Solver:

    An expert who has answered 5 questions.

  • Contributor
  • 13 Answers

This could be caused by several different things.. your convergence amplifier ICs could be bad, causing 1 of the 2 pico fuses to open up.. another possibility could be bad solder or defective hybrid voltage regulator to be bad (its usually a light brown color).. worse case could be a cracked picture tube hidden by the deflection coil on 1 of the 3 tubes.. might also wanr to check if the horizontal output transistor is shorted..there is also a 1A pico fuse that could be open..

Posted on Dec 22, 2008

  • dj70s80s Dec 22, 2008

    Sure.. If I am not mistaken, then if you are facing the back of the tv, the hybrid regulator (Light brown in color) will be to the left of the the set (on same board as the flyback transformer).. I had one which did what yours is doing, and found that the solder connections were bad on this regulator..keep in mind that there is a possibility this ic could be defective.. also very close to this ic you should find a 1A pico fuse (eithere grren or black in color) that could be open.. if its not these 2 things causing the problem, then check the 2 pico fuse for the convergence , which are also on this board... i think they are 4A.. if either of those are open then you will need to replace the STK392-150 ICs.. The horizontal outup transistor is located close to the flyback transformer..check to see if it is shorted...if it is none of these then it might be a cracked picture tube, althought if this is the case usually you will hear some arcing before the relay clicks off.. hope this helps you some

×

Add Your Answer

Uploading: 0%

my-video-file.mp4

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

×

Loading...
Loading...

Related Questions:

1 Answer

Toshiba TP48E50 red power light flashing


hello there well form my prior experiences and ive had many...i would suggest checking high voltage maybe the horizointol output or try checking the flyback for shorts...it is in the power suppy.......hope this helps..someitmes these sets have codes and the blinking light in the front panel may indicate the problem..see how many time it blinks in intervals and then see if you can check out the codes on the net....

Jan 25, 2009 | Toshiba TP50H50 50" Rear Projection...

1 Answer

TOSHIBA TV NO SOUND NO PICTURE, POWER LIGHT IS ON


the lamp in the projector might have went. try replaceing it. to do so try

ADTECH SYSTEMS they may help

there in mass.
call David Crepeau at 978 261 1087 tell him Ryan Bolduk sent you
depending where you live. They maybe able to send someone out from there sub company

Sep 18, 2008 | Toshiba 42H81 42" Rear Projection...

2 Answers

Won't come on


hy i got a toshiba 42" LCD tv ,when i press the power boton
iget the red light,& it stay that way ontil i pressthe power back off
thanks for any help

Jun 26, 2008 | Toshiba 62HM95 62" HDTV

1 Answer

Toshiba 50H71


you need to replace both the convergence ICs they are STK392-110 you can get new replacement ICs at the following link and they will provide free instalation instructions with pictures so you can do the repair yourself. Heres the link.
http://servicemanuals.vstore.ca/

May 29, 2008 | Toshiba 50H71 50" Rear Projection...

1 Answer

Fix 50H71 Rear Projection TV


Go to this site and leave an email indicating your model number and what the problem is, they should be able to help you with the problem.
http://servicemanuals.vstore.ca/

May 24, 2008 | Toshiba 50H71 50" Rear Projection...

3 Answers

Toshiba 50h71 red light after fixing the convergence chips


Did you check to be certain none of the resistors were burned or open that power the ICs ? This is fairly common for one or two of the convergenvce resistors to be open when the ICs go out. Also double check the iC pins to insure that none of the pins are bridged with solder. If you need more assistance please let me know.

May 19, 2008 | Toshiba 50H71 50" Rear Projection...

1 Answer

Toshiba 50H71 50 in. Rear... Problem


set most likely has bad convergence ics J.D.W.

Mar 26, 2008 | Toshiba 50H71 50" Rear Projection...

1 Answer

Red Blinking light


the same thing just happened to mine, i was told it might be the diplexer ??? still trying to research it though.

Mar 01, 2007 | Toshiba 50H71 50" Rear Projection...

Not finding what you are looking for?
Toshiba 50H71 50" Rear Projection Television Logo

Related Topics:

335 people viewed this question

Ask a Question

Usually answered in minutes!

Top Toshiba Projection Televisions Experts

Jaime Hernandez

Level 3 Expert

2267 Answers

Dave Naylor
Dave Naylor

Level 3 Expert

834 Answers

The Knight
The Knight

Level 3 Expert

68352 Answers

Are you a Toshiba Projection Television Expert? Answer questions, earn points and help others

Answer questions

Manuals & User Guides

Loading...