Question about Sony KP-57HW40 57" Rear Projection Television

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Sony KP-57HW40 FBT faulty

Can I change out the FBT or do I need to change the entire D board?

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You can do eather. Changing the board or having it rebuilt is best.

Posted on Nov 23, 2007

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I have a Sony Color Rear Video Projector Model KP-57HW40. Its blue color is not working anymore and noticed some burn smell by the set which controls such blue color.


It may be the CRT drive board which is attached to the bottom of the Blue CRT. I would check that Board for signs of being burnt it may need to be replaced.

Jul 08, 2011 | Sony KP-57HW40 57" Rear Projection...

1 Answer

Hi,im a technician and i got a problem with a Sony Trinitron Colour television model Kv-T29mn3. I replaced an Str, capacitors & Horizontal Output Transistor. Voltage output its okay but it keeps on...


These sets had alot of problems with bad FBT flyback tranfomers,You might need to change FBT.
Heres another thing they also had Bad Picture Tubes that will blow hori output and you will not know its the Tube untill you replace the FBT.Use a high voltage probe to monitor Voltage coming from the anode button, if you dont have a HVP then disconnect the CRT board and monitor set.

Jun 26, 2011 | Sony KP-57HW40 57" Rear Projection...

1 Answer

Have Sony Model# KP-57HW40 Big screen rear projection tv..Has blue wavy lines across screen, and sometimes flashes blue, can you give me assistance??


Blue Picture Tube , bad Video IC on Blue CRT board.Or Blue screen drive control to tube needs to be adjusted down some.

Most Likely Bad Tube!

Jul 12, 2010 | Sony KP-57HW40 57" Rear Projection...

1 Answer

The screen is all bright blue


I have Model # KP-WS500. The screen turn blue.

May 02, 2009 | Sony KP-57HW40 57" Rear Projection...

1 Answer

KP-57HW40


IT MAY BE YOUR FLYBACK LOCATED ON THE D BOARD COST AROUND 70.00 FROM SONY PARTS #145328521

Nov 01, 2008 | Sony KP-57HW40 57" Rear Projection...

2 Answers

Tv shuts off by itself then flashes a code 8 blinks


Eight blinks means, "High voltage error". The probable cause location listed is "T8005 is faulty (D board). T8005 is the fly-back transformer (FBT). or you can replace the full d-board
You may purchase the D board complete for $185.10

or send in for repair here

if one of the crt is shorted it can also cause this problem.

Jan 30, 2008 | Sony KP-57HW40 57" Rear Projection...

1 Answer

KP-57HW40 w/ 8 Blinks


8 times, Diagnosis: High voltage error. Possible cause: T8005 is faulty. (D board)

Dec 23, 2007 | Sony KP-57HW40 57" Rear Projection...

1 Answer

Sony tv KP-57WS520


9 times, Diagnosis: Audio error. Possible causes: +- 19V line is shorted. (A, B boards), IC708 is faulty. (A board), PS701 or PS702 is opened. (A board). Symptoms of the problem: No sound

Sep 23, 2007 | Sony KP-57HW40 57" Rear Projection...

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