Question about Soyo Onyx SYTPT4227AB 42 in. LCD TV

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Have a soyo mt-sytpt4227ab for the last year, was watchin tv and the picture went. audio worked fine. unplugged it and let it sit, plugged it back in and red light on tv comes on but power doesnt turn on at all. please help!

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Take the back off and get to the power supply most likely you will find some bad capacitors in it they will probaly have the tops of the caps bulgeing.

Posted on Nov 08, 2010

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Sell me your remote your tv is fried

Posted on Feb 10, 2012

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SOYO went out of business but you should contact another local company who bought up all there inventory.

The company is Amergence Technology
Corporate Headquarters 20480 E. Business Parkway
City of Industry, CA 91789

Tel: (909) 859-8400
Fax: (909) 859-8401

Posted on Feb 22, 2011

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1 Answer

Television will not come on unless you keep plugging and unplugging

I recently repaired 2 LCDs that would not imidiatly turn on when the power button was pressed. It took the first one 5-10 cycles before it would start, and the little one took about a half hour. I removed the back and found that a few components were bad on the inverter portion of the board and replaced them with corrisponding parts from a local electornics store and they both started first try everytime. If you have the tinkering spirit and for the price of a soldering station some desolder braid and some solder you could fix your problem today.

Just make sure it is unplugged!

Apr 18, 2011 | Soyo Onyx SYTPT4227AB 42 in. LCD TV

1 Answer

I have a 42 inch flat screen SOYO tv.....have had it for 4 years, and last night the tv has not wroking. It started to flash funny lines, and scribbles lines and now will not turn on . There is an...

It appears that your are having a tube failure issue.

Either that, or you have a capacitor problem.

Both can act like that, but as a rule the tube acts more like that when it fails than the other parts of the tv.

The tubes are replaceable, and are available from Fry's and BestBuy.

If it winds up that it is the capacitors instead, then I would take the tv to either Fry's, BestBuy, or RadioShack.
These companies have specially trained techs for just that repair, as it takes special skills to deal with the voltage and power that capacitors can hold in them.

I hope that this helps you out some, and good luck!

Mar 13, 2011 | Soyo Onyx SYTPT4227AB 42 in. LCD TV

1 Answer

My Soyo Govideo LCD Television stop working, the red power light will not stay on.?? Its a 42 in LCD TV

Power LED light indication blinkings or completely dead?Yes,than the power supply board is the causes.That the board,where the power a/c cord plug in to it.Take the aparts,replaced the power supply board,will sold this problems.Tries websites like, to buy a whole refurbish power supply board for the replacement.

Nov 20, 2010 | Soyo Onyx SYTPT4227AB 42 in. LCD TV

1 Answer

TV will not turn on until I unplug, then plug it back in.

I have the same problem with my Soyo 32" lcd tv. Seems a lot of people do. Soyo went out of business, but I am going to see if it is the capacitors, like several people said on here.

Dec 21, 2009 | Soyo DYLTO32A 32 in. HD-Ready LCD...

1 Answer

The tv was working then all of a sunden it blow and made a pow nouse

Tv was working fine and all of a sudden it show off and will not work at all. Please Help

Nov 23, 2009 | Soyo Onyx SYTPT4227AB 42 in. LCD TV

1 Answer

No picture but sound works.....

  • adjust brightness setting when playing tv.
  • adjust screen control located on flyback transformer.
  • hope this will help.

Oct 23, 2007 | Sony KV-36FS16 36" TV

1 Answer

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.

Jul 11, 2007 | Toshiba 56H80 56" Rear Projection...

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