Question about Sony KP-57WS500 57" Rear Projection Television

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Sony 57 in Rear Projection TV

My 2002 Sony KP -57HW40 rear projection tv is giving me problems. While watching the TV after a few mins maybe 5 or so. The TV will Flashes Red with red lines for about 5 times or so the shuts off. Can you help or tell if the fix has to be done by a expert.

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If the picture is playing fine and you notice that the background is getting more and more red, until it is too red and the set shuts down, it could be that the red screen control is set just a bit too high. If this is the case, you can probably correct this yourself. If you are watching a perfect picture and then it suddenly flashes a very bright red, with thin red lines in the pictureand then shuts down, it usually means that the red picture tube has developed a short in it, between the cathode and heater. A good tech might be able to remove the short by arcing, but if the short persists then the red tube will have to be replaced. Either way, this is something that should only be done by a qualified tech.

Posted on Aug 27, 2007

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Posted on Jan 02, 2017

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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

52'' sony tv rear projection turns blue


it sounds like the blue crt is failing Pull the front off and turn the tv on
When it still has a good picture tap the blue crt
if it flashes blue with lines across the screen then you know it is a bad crt

It might not be worth fixing

Good luck


Jan 26, 2009 | Sony KP-57HW40 57" Rear Projection...

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Hi,
You need " A-1502-021-A " COUPLER (R) ASSY, CRT for your Sony KP-57HW40 TV.
It is available in Part Store.
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Oct 22, 2008 | Sony KP-57HW40 57" Rear Projection...

1 Answer

Tv problem


Many of these Sonys can be repaired simply by reseting the white balance for the CRT's

Oct 12, 2008 | Sony KP-57HW40 57" Rear Projection...

4 Answers

Green flashes then tv turns off


or a new lamp. you could first replace the lamp.
the screen might work fine for a couple of seconds, but then it fades away or deteriorates. This means the lamp is going bad.

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Sony Color Rear Video Projector - KP 57hw40 / Mfg. February 2002


i have the same problem picture is blue/green with blue and green arched horizontal lines

no picture at all only sound then tv shuts off after 5-10 seconds and then a bright blue flash in the center of the screen

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Jul 13, 2008 | Sony KP-57HW40 57" Rear Projection...

1 Answer

Green flashes


It is a defective green CRT and most likely the red and blue will need to be replaced as well. This was a known issues with this year of Sony projection TV's.

Apr 07, 2007 | Sony KP-57HW40 57" Rear Projection...

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