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Question about Sony BRAVIA Televison & Video

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Sony 49 XBR 900 E power will not come on unless the plug is taken out from the set and reconnected. Can you tell me which board should be replaced?

I would like to order the replacement if I can get an answer.
Is is the main ? or the Power?

Felix C

Posted by Felix Cavaliere on


1 Answer

Larry Ng

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  • Sony Master
  • 7,653 Answers

What plug not told./
PC is dead?
no it is not a PC it is a television posted to wrong forum
now corrected.

is TV set to sleep mode, RTM read the manual on TV
are the clicker remote batteries fresh>?

Posted on Mar 24, 2022


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SOURCE: Replacing the main Board to eliminate howling noise

I have had a number of these complaints and I have always repaired it by replacing the evap fan motor. It is a much cheaper part, however, its way more difficult to install than the main board. Yes many other techs say it can be resolved with a new main board and yes it is just a matter of plugging the wires in. I would be very interested to see if indeed it does resolve the howling. It will come with an instruction sheet that says you will need to cut a wire from one of the harnesses. Just disregard this if indeed your model is the one that you selected and is fairly new. (PSS26msr). If you would like to take advantage of my employee discount I can send you the part for $100 plus $20 shipping. Just let me know.

Posted on Jan 19, 2008

enda story

niall ginnity

  • 61 Answers

SOURCE: How to replace a power adapter on a Dell E171FP LCD

this is a monitor you shuld not open this as it has very high power running thru it. get dell onto it

Posted on Apr 24, 2008


Neil Frazier

  • 42 Answers

SOURCE: Main Power Board

The power supply board can be changed without any knowledge of repair but there are sometimes adjustments necessary if the picture is not normal. Many times it is fine. There a 4-5 voltage adjustments that would take some knowledge and a meter to accomplish. You need to hope it was diagnosed properly first. If it is completely dead the p.s is a good possibility. If it clicks on then back off almost immediately it is not likely the power supply.

Posted on Jun 23, 2008


  • 4 Answers

SOURCE: I have a dead E151FP monitor...need either a schematic or another damaged monitor

You can get repair instructions for the Dell E172/E151FP at and order transistors at AnBparts on ebay.

Posted on Sep 05, 2009


  • 1 Answer

SOURCE: Power Problem with Zenith Z50PX2D

I had the same problem with same model TV a year back, they replaced some board (I was not there at home) as I had warranty and after a year same issue popped up again.. Can you please tell me what board replacement worked for you. I don't have warranty anymore.

Posted on Feb 15, 2010

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would think you need to replace the cable board etc. the signal is not getting in and out right. can also be a fault on the power board giving the wrong volts so would check this to. it will tell you on the board what volts is supposed to be. the 5v and 12v should be spot on other volts will vary a little. also check the capacitors for the caps to be bowed up and a brown/ yellow gunk around them and under the board this can be a sign they are failing.

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Your power supply board is dead, do you know basic electronics' and soldering? Most of the times, the power supply board just have dead leakages gases capacitors.These capacitors always bulges up on it top,or puff up on it top.Replaced these gases leakages capacitors will get your TV power stable,and work again.Or tries websites like, to buy a whole refurbish power supply board for the replacement.

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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. Pull up older posts.
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