Question about Sony KP-51HW40 51" Rear Projection Television

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5 flashing light code,unplug CR board,now 8 flashing light code

Sony KP-51hw40 - Has 5 flashing light code and tv shuts down after blue and green tubes light up and red doesn't. Was told by Ladywinn to unplug red tube CRT board and see if the tv stays on. I hope that is the CR board at the bottom of the yoke and V-board assembly. I unplugged the CR board ,the tv shuts off and get 8 flashing light code now,which is audio I think.

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If you put the "CR" board back on, the error code will once again be 5 blinks. Your problem is likely the TV's IK blanking circuit. The Kine driver ICs on the CRT sockets boards CR, CB, and CG need replacement along with a few components in the 200 volt supply to the circuit.

Posted on Feb 13, 2009

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My Sony TV shuts down after you get a bright flash of light from the screen. After it shuts down, the red LED light on the front flashes 8 times. What's the problem?


On some projection models of Sony TV sets, this code means that T8005 (flyback transformer), or the associative components in the high voltage circuits are defective on the D board.

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Sony 57 projection flashing blue green and shuts off blinks 8


if its hot cool it if that isnt it reset it by unpluging it and holding the power button while unpluged

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Sony goes blue


you need a new Blue CRT you can get them at the following link.
http://servicemanuals.vstore.ca/

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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.

Aug 23, 2008 | Sony KP-51HW40 51" Rear Projection...

1 Answer

A few green flashes and the TV shuts down, blinking stand by light.


If you get rid of your TV I will buy your blue Tube Mike Audiomonkey@comcast.net

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1 Answer

Standby Red Light Flashing


six flashes corresponds to "Horizontal deflection stop". In turn the "supposed malfunction" is then either Q5013 (H OUT) is broken and/or IC507 (H Jungle) is broken.
however i would check
Video out, IC7101, 7201, 7301 and others in C board circuit.
Q510, 516, 524 (A board).

There are actually three C boards, the CR, CG and CB boards. They are attached to the rear of the red, green and blue CRTs, respectively. I wouldnt attempt to repair the set myself. I would solicite the services of an authorized Sony servicenter.

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1 Answer

Kp-51hw40 problem


your blue tube is shorted unplug blue crt board see if set comes on and stays on!

Nov 07, 2007 | Sony KP-51HW40 51" Rear Projection...

2 Answers

Sony tv red flashes


I hate to be the bearer of bad news, but you have a shorted red picture tube.It is not at all uncommon on sony rear projection. The gun shorts and the set identifies the problem and goes into shutdown. Usually there are diagonal lines in the picture before it shuts down. this is an unfortunate problem because this set delivers a great picture. The dealer cost of the tube is around $200. When the repair is complete your're probably looking at $400-$600. The only problem is that the green tube and the blue tube also have chance of having the same problem. It'a tough call . But from my experience , I have replaced the green tube and had the blue tube goe within a year. Scrivitron

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