Question about Sony KDF-E42A10 42 in. LCD Television

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Sony screan not working

Where is the ballast board

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Posted on May 10, 2014

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Posted on Jan 02, 2017

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How do you fix a lamp ballast board on 50 inch sony grand wega


The ballast board will need replacement you can get the sony Lamp ballast 146892712 used in the KDF55WF655 models, from www.tvrepairworld.com listed under the sony DLP circuit board cxategory

Oct 28, 2011 | Sony Grand WEGA KDF-55WF655 36" Rear...

1 Answer

TV Model: Sony Wega KDF-55E2000 Projection lamp warning is on..and today a light red bar appeared at the top of the screen and light blue on the bottom..is this because the projection lamp needs to be...


Hello
There are two possibilities for this fault with Sony Projection tVs. The first is with the lamp itself. The second one is with the lamp ballast baord. Replace the lamp ballast board first. Because, it there is any internal winding short in the inverter transformar of the ballast board this type of fault can occur. you have to replace the ballast baord along with the new lamp anyway. Therefore, replace the ballast board first. If this help you, there is no need ot replace the lamp. Picture of the ballast included here for you to compare.

gopakumarg43_36.jpg If replacing the ballast dis not help you, change the lamp too. OK.

Aug 31, 2011 | Sony KP-57XBR10 57" Rear Projection...

2 Answers

My TV screen went black and now the bottom light that is usually green, now blinks red 5 times in a row. Can you please tell me what is wrong w/ it?


5 times red standby light blinking shows problem with ballast supply board in Sony KDF-E50A10 model tv, ballast supply board provides high voltage to lamp to produce high bright light.
Please check/ replace ballast supply board in tv by local tv repairman.
Thanks.

Nov 07, 2010 | Sony KDF-E50A10 50 in. LCD HDTV

1 Answer

My Sony KF-42WE610 on power up fan comes on and just a short buzz every minute or so on power down red light comes on stand by but won't shut down i hear the fan running so i had to unplug it.


I think that this is a ballast issue you are not suppose to hear any weird sounds coming from your TV set and if this ballast board is not working it will not be able to turn on the lamp this boards are not that expensive they range from $65.00dls to $90.00dls you need to take the ballast out and get the part number of the board to find the right one

Sep 14, 2010 | Sony Grand WEGA KDF-42WE655 42" Rear...

1 Answer

My KDS-50A2020 TV has an error code indicating a lamp driver fault (5 red blinks). I replaced both the lamp and the ballast and it still doesn't work. I need further assistance troubleshooting the...


Hello.
Ballast in Sony is one of the most reliable parts, almost never goes bad.
I assume you have TV unplugged from the wall outlet to reset error memory (not to mention that you have to do it anyway during ballast replacement).
I hope you are using good quality lamp, because cheap substitute from E-Bay can cause same problem. Lamp and ballast works as duo and on-board diagnostic system is unable to separate them unless lamp is completely blown (in that case you will have steady "Lamp" LED blinking).
You need to set TV up with back cover removed but lamp door attached (there is switch that prevent TV from working if lamp door is removed). You need to locate large 2-wire connector on ballast and make sure that it's getting about 330V DC from power supply board when you turning your TV on. If it's not there - you have power supply board problem. There should be fuse on it (not on the ballast board but power supply board - just trace those two thick wires where they coming from). That fuse could be blown by previous bad ballast shortage.
Small connector on ballast have 5 pins. Some of them ground, one of them steady 5V and another trigger (turn on signal) 5V. Make sure all voltages are there. If there is no trigger 5V - you have problem with main board.
In my experience 90% cases - it is very bad quality new lamp or something is just not connected (forgot to put plug all the way or something).
Good luck!
Russ.

Aug 17, 2010 | Sony KDS-50A2020 Television

1 Answer

I put a new lamp in my sony kdf50we655 and the tv worked for two days and now when i go to put it on the lamp light comes on.


Recheck ur projection lamp connection.U hear alot of clickings sound few mins.The board call the Ballast board is dead.This Ballast boad help to ignite the projection lamp.

Aug 13, 2010 | Sony Grand WEGA KDF-50WE655 50" Rear...

1 Answer

My KF60XBR800 will not always power up when we


Replaced the projection lamp again.Sony projection lamp more expensive,but last longer too.Genaric projection lamp brand last about 1 1/2 max.U hear clickinng sound too,when LED light flashes?Mean the Ballast board also dead,require changing too.The Ballast board help to ignite the projection lamp.

Jul 07, 2010 | Sony Grand WEGA KF60XBR800 60" Rear...

1 Answer

Replacing ballast


To confirm if the ballast is bad check the ballast board to see if the spark gap (on the ballast board) lights when you first turn the set on. If it does than the ballast is ok.

Sep 20, 2009 | Televison & Video

1 Answer

No picture


replace the lamp and the lamp ballast board using ONLY Sony Parts.lamp A-1606-034B ballast 1-468-798-16 this worked for mine.

Oct 02, 2007 | Sony Grand WEGA KF50WE610 50" Rear...

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