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

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Blue bow on screen no sound

Tv works ,but as soon as you turn off and back on you get a blue bow tie.after turing itoff and on nothing

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The blue CRT (picture tube is bad) These TVs were a real problem. Picture tubes began failing in these sets within 2 years of use. Sony warranted some of these TVs for a short while but has since abandoned their customers so they could build defective LCD projectors which are now the subject of a class action lawsuit.

Kick it to the curb and start lookin' for a new one.

michtech

Posted on Feb 13, 2009

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When turning on the tv by either remote or switch on side screen will flash blue then turn off. Have unplugged tv still won't turn on.


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Jan 28, 2016 | Televison & Video

2 Answers

I have this same problem with the PT51HX41E but in the convergence menu the green and red are allowed to move. but the blue on the right side of the screen is not allowed to move and it looks like its...


My first guess would be a bad convergence amplifier - this is common, although usually all three of the amplifiers in the integrated circuit die at the same time, which throws off at least two colors and creates a "bow-tie" effect. I surmise you have half of a bow-tie in blue only.

If you could look at the blue output waveforms with an oscilloscope, you would see right away if this is the problem (flat-line instead of sawtooth wave). It is possible that both of the blue convergence amplifiers are working, but one output is not getting to the blue deflection yoke.

Don't mess with the convergence anymore until you get this taken care of. Changing the convergence now will only make it harder to get it back to where it should be once the circuit is fixed.

Sep 22, 2010 | Panasonic PT-51HX41 51" Rear Projection...

1 Answer

Picture on the screen looks like a bow-tie red, green, and blue are seperated on screen


magnetized tubs, check if you have any speaker nerby tv. to correct image is a degauss function tv menu

Dec 22, 2009 | Zenith R57W46 57" Rear Projection...

1 Answer

Samsung 5415r problems


blue line indicates a major diod or capasitor got failed by replacing it we can rectify this problem... if we go to repair it then shop keeper will tell you that its picture tube got flashed........

Oct 03, 2009 | Samsung PCL5415R TV

1 Answer

Picture is blurry and is shaped like a bow tie on my tv


This is a convergence problem that you can fix if you can solder. Let me know if you wish to attempt the repair and I'll post additional details and instructions.

Dan

Oct 10, 2008 | Mitsubishi VS-55707 TV

1 Answer

My picture turned blue after i unplugged the tv


did you ever fix the problem?
my tv went blue screen also
needed to charge the lamp so did but now can't get the new lamp to work

Jul 25, 2008 | Mitsubishi WD-52525 52" Rear Projection...

1 Answer

Nothing but a blue screen


Good day.

No fuse was blown in this case. It has something to do with the filter capacitor along the screen supply to your crt circuit.
Have it checked by the repairmen since the problem is internal.


chris

Mar 22, 2008 | RCA HD56W58 56" TV

1 Answer

Picture is suddenly "bowed" and the convergence is askewed at everypoint but center.


the problem is the EW cicuit of the deflection cicuit. this is a component level repair call a tech. the EW or East West correction is apart of the horizontal deflection. IC431 is the pin amp.

Feb 06, 2008 | Akai PT5598HD 55" Rear Projection...

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