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Why wont my Toshiba regza 63 inch t,v wont turn on

One day before I was leaving I turned my t.v off by clicking the power bar to off. Come back later that day and it wouldnt turn on, no clicking sounds that it usually makes, no lights, nothing at all. Checked the fuses inside.. they dont look burnt. What could be wrong? Everything looks fine inside on boards.

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  • Master
  • 641 Answers

Try to check this site.
My Toshiba TV won turn on

Posted on May 15, 2014

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6 Suggested Answers

6ya6ya
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Posted on Jan 02, 2017

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techman
  • 3130 Answers

SOURCE: Tv won't turn on

Most likly it is a problem in the power supply regulator circuit. pretty common for Toshiba TV sets. If you know about TV serviceing, first thing to replace would be the regulator IC as that is the problem 80% of the time. if that does not help then you will need a schematic to trace out the regulator circuit. Good Luck PS please dont forget to rate this thread.

Posted on Oct 19, 2006

  • 1 Answer

SOURCE: F35750ST watching one day, turned off, will not come on the next day.

my tv turns off andon

Posted on Jun 23, 2008

  • 927 Answers

SOURCE: dm board (power supply) for mitsubishi rear projection tv (ws-55807)

Good day,

mohiuddin;

If the indicator stays on then you may have an DM PCB problem and to correct this do the the folowing:

SYMPTOM: Power LED does not stop blinking after plug in.

CURE: replace C9B01, C9B02,C9B10, and C9B11 (1000 uFD 16V) on the DM PCB. Replace them with part # 181P734030 (680uFd 16V).

The DM Board (PCB) is located on the very left side of the TV looking from back. Caution on removing Board and note what cables you disconnect to access the Metal Shielded Board.
Good Luck, big IRISH.

Posted on Jul 30, 2008

  • 4 Answers

SOURCE: sony trinitron wega 36 inch

If you are not a professional Electronics guy,it is beyond you to tackle this problem. otherwise log on to www.free service manuals.com and see the SONY Blink codes and also download the service manual.best of luck

Posted on Aug 31, 2008

  • 1 Answer

SOURCE: toshiba 37 inch tube tv wont turn on

Any set that won;t turn on is probably due to a power supply converter which has burned out switching semiconducors. The first thing to do with a set which will not turn on is to check out all the switching gear (ie switchmode converter circuits) and all associated drive and driver semiconductor devices. Once you've done this you will usually find the problem.

Posted on Sep 21, 2008

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Hi I have a Toshiba Regza 55" flat screen TV Model 55ZV65OU. Yesterday we had a power outage a quick flicker Off the power then on came the power but my TV won't turn back on.Note I use a power bar w


Fault with the main power supply regulator board. Check and replace damaged component/s at its main power regulator [SMPS] section circuit. Contact any service technician. If you wish to get some details; check the site linked here. Surf the site with patience. Pull up older posts.
http://electronicshelponline.blogspot.com/
It will be best to replace the power supply regulator board as card basis rather than making "Surgery" to it; which usually will make loss for both money and time. Even though you can make it right, it will cost around an amount equal to the cost of a new board; including the cost of (spare parts + service charge) More to say, most of the spare parts to it will be difficult to get from open electronic spare part market. This is true to most of the flat panel TV power supply boards; irrespective of its brand and screen size.

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if no any power indicator at the front panel, check for a blown fuse at the power supply board.

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Your TV needs servicing, Most likely you have a power supply related issue. Do you have any experience with electronics repair?

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Two years is about the right ime for it to break down. You need to open it up and check to see if you do have 5vdc standby voltage first, look to see if the power supply has any bad DC filter caps with leaking/bulging top, and go from there.
If you are going to DIY and have proper tools, electronics knowledge, and know safety precaution then please read on:

Please see my basic troubleshooting guide here:
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http://s807.photobucket.com/home/budm/allalbums

http://en.wikipedia.org/wiki/Capacitor_plague

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