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Toshiba 55vl900a wont turn on

Tv lcd not comming out of standby mode

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6ya6ya
  • 2 Answers

SOURCE: I have freestanding Series 8 dishwasher. Lately during the filling cycle water hammer is occurring. How can this be resolved

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Posted on Jan 02, 2017

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freetek
  • 5568 Answers

SOURCE: TV & Tuner stays in Standby mode

Assuming you have tried changing batteries in your remote and any front panel power switch your set has, the main power supply is probably at fault and without some technical background and a couple of test instruments, you will not be able to do the repair yourself.  What you can do though is; unplug the set, let it stand overnight or at least several hours, remove the back panel and look for a separate board with mostly larger components on it; it will have a ferrite core transformer on it and several larger capacitors which are cylindrical and mounted vertically to the board.
 
Before touching anything inside, especially on that board, allow several hours to be safe since the larger capacitors can hold a painful voltage charge for some hours.  
 
If you see signs of overheating such as discoloration of the board material, it may not be repairable but if you can find a part number on the board, you might be able to buy the power supply and install it yourself.
If there are no signs of heat damage to the board, there may be companies offering to repair it as a subassembly instead of repairing the whole set which could be much more expensive.
If you choose to replace or have it done, the power supply still may not be at fault since most are capable of switching on and off if a downstream problem is causing an overload.
 

Posted on Oct 29, 2008

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  • 21 Answers

SOURCE: TV ON STANDBY MODE

Hi
Please go to ebay and buy your power supply board:
AKAI LCT3701AD POWER SUPPLY BOARD MLT386X

Posted on Dec 30, 2008

  • 197 Answers

SOURCE: toshiba 36'' crt tv that goes on standby mode

check for cold solder joints

Posted on Jun 09, 2009

SOURCE: WONT TURN ON

Most likely, the problem is a defective Main Processor Board. This is the board with the antenna, RCA and HDMI plugs. You cant repair or replace component parts on this board, so dont even try. You must replace the complete board. The TV says Sylvania, but it is a bloody Funia TV. Several years ago this foreign company bought out broke-azzz Sylvania . They are still carrying the Sylvania name since Sylvania was a popular TV name in the 70s. Every electronic company in the USA is now owned by the Chinese, so call Funai and order the part from them. Dont be surprise if they dont have a clue what the heck you asking for. America and all electronics have gone to the puddles. Do you know why? GREED.

Posted on Jun 10, 2009

JOHNSONELECT
  • 113 Answers

SOURCE: Ilo 32 inch LCD wont turn on

power supply bad inside of tv

Posted on Aug 28, 2009

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Fault at its main digital board. Short circuited component/s at it. Contact any service technician; or the authorized service center. 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/ In most cases, the main board might have to be replaced. If so, a software [firmware] update too might be necessary.
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Free Fix For Toshiba 50" TV That Will Not Turn On. - YouTube

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I searched standby using Ctrl+F and found this information. It seems you should be able to bring it out of standby using the power button on the remote. You want to make sure there is an input connected and if it is connected to a PC that the PC isn't telling the TV to go into standby.
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1 Answer

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Too little details here - need model, chassis, more specific behavior details.

This may help:
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1 Answer

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There is a problem with the power switch board,there might be short in the IC Unit , you might have to change it. get it serviced by a TV electrician soon before the board gets damaged.
thanks for rating good luck

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