Question about Toshiba 57H84 57" Rear Projection HDTV-Ready Television

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Wont turn on

Just picked up my friends tv and seeing if i can get it to work so i can keep it for free. I plug it in and power it on, but all that happens is the indicator light turns on and the speakers hum, no picture. can you help?

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6 Suggested Answers

techman
  • 3130 Answers

SOURCE: TV auto shut off-power indicator light blinking-won't turn back on

You could have gotten an electrical surge that put your set into a shutdown condition and unplugging the set and letting the Microprocessor reset will fix this problem if it dosent blow out the main power regulator as you still or might I say have a regulator IC problem. IF THIS PROBLEM HAPPENS AGAIN MORE THEN A FEW TIMES WITHIN A SMALL TIME FRAME I WOULD HAVE THE SET LOOKED AT BEFORE THE REGULAOR BLOWS SOMETHING OUT!!!!

Posted on May 14, 2006

  • 1 Answer

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: TV on/off light keeps blinking red light/no sound or picture on screen

Here's a solution that I received from an TV expert in another website: "This sounds like a power supply problem. i have seen it several time on your model. i would not keep trying to turn it on it might damage something else in the tv. the reason it is shutting off is because the power supply is putting out too much voltage. a repair cost will range around 300-400. this is a great model and well worth a repair. here is a web site that might help you in finding a repairman.
http://www.nesda.com/locator/state_search.php." <-- $300-$400 is too much! But throwing away a 300lbs TV will cost a lot of $$$ for the towing and dumping too. I haven't decide what to do yet.

Posted on Dec 19, 2007

texasdan
  • 60 Answers

SOURCE: Toshiba TN55X81 Wont turn on but I hear clicking

Pull the three connectors to the yokes on the convergence board. If the set powers up, it's a good chance the STK392-110's need to be replaced. I fixed one today, and it has been running for 6 hours now.
-Dan

Posted on Sep 28, 2008

  • 927 Answers

SOURCE: wont come on

Howdy,
It sounds like the lamp has failed. It easy to replace, you cann find price and number on this site.

Good Day, big IRISH.

Posted on Dec 28, 2009

  • 1 Answer

SOURCE: Toshiba 62HM195, Loud hum noise when TV is first turned on.

I have the exact TV and had the exact same problems. It is the light engine with color wheel that needs to be replaced, and they are VERY hard to come by for this model. Our repairman has had our TV for 5 months and still cannot locate a vendor that carries the part. He said according to Toshiba, the part has been discontinued. If you happen to find one, please post. I'll do the same.

Posted on Jul 23, 2010

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You can also check the transformers they are close to were the wires plug into the panel, make sure all transformers read the same amount of resistance if not you have found a bad one. Now you will have to check to see if the power supply is sending 24v to the backlight, if not the power supply is bad. Cost backlights around 150.00 and power supplies around 100.00. Well this should help you friend.

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First make sure to hit the menu button on the TV's remote and if nothing is there then friend while the set is on turn a bright flashlight on and shine at angle into the set push the TV menu button if you can see a image then your back light is not working.
You can also check the transformers they are close to were the wires plug into the panel, make sure all transformers read the same amount of resistance if not you have found a bad one. Now you will have to check to see if the power supply is sending 24v to the backlight, if not the power supply is bad. Cost backlights around 150.00 and power supplies around 100.00. Well this should help you friend.

Oct 22, 2009 | Philips Magnavox 51MP392H Rear Projection...

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Memorex 38 in.flatscreen keeps cutting off and on and none of the buttons work either. Help!


Power supply has a issue or two check and see if the power supply is putting out enought power to the unit this is the major cause of these TV's going out.

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May 02, 2009 | Projection Televisions

1 Answer

I have red power light blinking,tv wont turn on


I'm not sure of a Toshiba TV but my Phillips and a friend of mine's Mitsubishi TV do this very same thing when the system has detected a voltage spike. Usually this is caused by static discharge (let me guess you have carpeting). Unplug the unit and hold the power button for 10 seconds and leave it unplugged for 5 minutes. Then plug her back in and give it a whirl.

Give us an update.

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i have a friend who has this tv and the same problem. i called a repair shop abd i was told it is the high voltage converter. $400 to pick up drop off and repair.

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Toshiba TN55X81 Wont turn on but I hear clicking


Pull the three connectors to the yokes on the convergence board. If the set powers up, it's a good chance the STK392-110's need to be replaced. I fixed one today, and it has been running for 6 hours now.
-Dan

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Solution is simple....

First, unplug power cable from the back of your TV. You will notice the flashing light is still flashing. Don't worry, go to the Second step.

Second, keep pressing on the POWER button, located on the panel at the top of your TV, to shut off your TV. This will stop the flashing light from appearing.

Third, Plug the power cable back onto your TV

Fourth, press the POWER botton ONCE, using the same button used in the Second step to turn your TV back on.

Fifth, you will see the POWER light comes on, as normal.

Sixth, using your remote control, press the green button to turn on. Your TV should work as normal.

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