Question about Samsung HCN4226W 42" Rear Projection HDTV-Ready Television

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Need a blue tube...

Can you explain this more to me. Where can I get it? Can I fix it myself?

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Explain the problem your having thnxz

Posted on Dec 18, 2007


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Sony kp 51hw40 rear projector turn off problem .

T8005 etc is NOT the issue.

This set was prone to bad picture tubes (has 3) and can flash bright blue (most common) and set when this happens detects too much current being drawn and shuts down.

There is a fairly easy way to try to deal with this and return set operation to fairly normal.

Not technical and no parts are needed.

Let me know if you want to know with a comment here and I will explain.

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How do you remove the venturi tubes of a Blue Ember Gas Grill? The manual explains how to clean the venturi tubes, but it doesn't say how to remove the tubes for cleaning. The manual just says...

The venturi tubes are part of the burner. It"s a slot on both sides of the burner tube, where it goes over the burner orifice. You will need to remove the burners to check and clean them.

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If it's normal television, with CRT picture tube . then it's Blue gun which went off normally its a solid state circuit which can malfunction. which is located at the back neck of picture tube blue gun out put circuit a transistor or a resistance of 470 K or 390 K Ohms can blow off. or the tube base can loose contact with the blue gun pin.

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Blue convergence wont move to the center with the yellow plus sign my picture is yellow and blue can I fix this myself

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Seeing red !

I had a television that went to a bright shade of blue.A friends neighbor worked for sony television plant where the new tubes came down the assembly line.His job was to make sure tubes were working fine,if one color was dominant then his job was to smack the front center of the tube with a rubber mallot to fix the problem.He suggested i try that with my tube while the set was on.It worked and solved my blue problem.Apparently he explained,the gun connections in the tube came loose and to fix it was to smack it this caused the connection to reweld itself.For you I would use the palm of an open hand and smack the tube dead center with a good hard smack.Dont be afraid of breaking the glass because its very thick and strong.Give this a try.Hope it helps.Good luck!

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Have you cked 24volt neg and pos if not ok possible convergence ic and if you do change them make sure you ck the resistor by the ic's

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Blue screen

Very common problem on your model. you have a bad blue tube. in order to repair it you will need to replace the blue tube and then aligned it to the others. you will need to know a little about what you are doing. if you are interested in doing this yourself i will need a serial number off the back of the set to get you the right part number for the tube. This tube is going to cost you somewhere between $200-$300. To get this tube in there and looking right is a little of a fine art, I can walk you through this though. Let me know what you want to do!

Tim nolan

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1 Answer

Can I repair this problem myself?

You could do it but you would need the service manual to be able to do the tube and lens alighnment. You have to align the tube and lens before you can adjust convergence, and if you dont alighn properly you will kill your convergence ICs trying to compensate. If you would like me to post a link where you can get the manual let me know.

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explain what the picture looks like? Does it look like the edges are in 3-D?

Jul 25, 2007 | Samsung HC-P4241W 42" Rear Projection...

1 Answer


Sounds like you have a problem with the blue gun in your picture tube or its drive circuit. You might remove the back cover and gently tap on the neck of the picture tube using a plastic screwdriver handle while watching the screen in a mirrow. If the picture flashes back on or on and off then the picture tube is the problem. If this is a projection tv you have three separate tubes : red, green & blue. you'd need to tap the blut one.Gently!!!! Stargazer

Feb 13, 2007 | Sony KP-53HS20 TV

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