Question about Toshiba 55H70 55" Rear Projection Television

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Tv powers on then shuts off - Toshiba 55H70 55" Rear Projection Television

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Voltage issue on the power supply most likely

Posted on May 28, 2010

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Posted on Jan 02, 2017

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Why would it get hot once coex cable hooked up and scanning for channels? tv gets hot and shuts off.


I would check that there is not a problem with the power supply to the set. If it gets hot and shuts of the power may be faulty and could be causing component failure.

Jun 05, 2015 | TCL LE48FHDF3310 48" LED TV 1920x1080, 120...

1 Answer

Tv will not turn on i push power on button and blue lights click on an tv acts like it will come on but then tv shuts off and no picture appears


The blue light merely indicates power is getting to the TV. When you press the power on button, the defective power supply shuts the TV down immediately

Jan 06, 2013 | JVC LT42P789 42 in. LCD TV

1 Answer

When tv was ruining main power shut off and after that tv didn't turn on.tv akai pt 46 dl 10.week ago. i didn't try any thing.


The power shut off because it has been a power surge - the voltage on the line grew very high for a fraction of a second. When that happened the protection system at the power station that powers your house disconected the mains, shutting everything down. Unfortunately it hasn't acted fast enough and the power source of the tv has been fried by the surge.
To fix that you will have to dismantle the tv and replace the power source with an original one. If you don't know ho to do it then the only thing left for you to do is to take the tv to a certified repair shop. It will be expensive, so be prepared .

Dec 17, 2010 | Akai Televison & Video

1 Answer

When I was watching TV today my Sony Bravia KDL-40V4100 just swutched off by itself. After 15 minutes or so it came back on by itself, I shut it off soon after. Later on today after watching TV for 15...


When tv it shutting itself off by it own does the tv power LED light indication flashes?Tv turn on now,the tv power light indication,just flashes?Yes,than ur tv power supply board is the causes and the problems.That the board,where the power a/c cord plug into it.Tries websites like Shopjimmy.com,Ebay.com to buy a whole refurbish power supply board for the replacement.

Dec 12, 2010 | Sony BRAVIA KDL-40V2500 40 in. LCD HDTV

1 Answer

Toshiba shuts dowm


pls .check your tv power cabel pin and plugg bitwin sparked or luss canaction [pls unplugged cabel pin and see tv. power cabel pin on top side black spot.]
pls try power cabel properly canact if loose replace with new.
NOTE:most of tv poblum is making power cabel loose. so canacting tv power cabel or power bord check with electrician

Oct 08, 2009 | Toshiba 42H81 42" Rear Projection...

2 Answers

Tv shuts itself off


The power supply may be going on to protection mode. This is usualy because one of the scan amplifiers may have failed, or something is taking too much current and forcing the power supply to shut down.

Jerry G.

May 12, 2008 | LG RU-52SZ51D 52" Rear Projection...

4 Answers

TCL tv


i have tcl satellite tv...the porblem is when i switched on , 5 or more minutes after, the tv unit shut off itself. Sometimes the tv scan its channels first before having picture then shut off after few minutes..varying time when shutting off.....And when using for video movies everything alright....please tell me what to do??...any solutions??..advance thanx to those who could help...

Oct 29, 2007 | JVC AV32F476 32" TV

1 Answer

TV LED Flashes then TV shuts itself off


capacitor problems in power supply or a regulater isolate the power suppley by disconecting the line output stage/unplug scan coils for example and run a 60w bulb as a dummy load one wire to earth and the other to rail voltage colecter of line output transister if the bulb glows steady the power supplys fine

Jun 25, 2007 | Philips 27PT81S 27" TV

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