Question about Panasonic PT-51HX41 51" Rear Projection Television

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Blue Crt? or Lamp?

I just recently got this TV that was given to me, the only problem with it is the blue picture does not show. The Green and Red show fine and kinda overlap each other however the blue has gone out. Is this a lamp that I can replace or do i have to replace the entire CRT for it? Are there any diagnostics that I can do to check if the Blue is working or not?

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Re: Blue Crt? or Lamp?

What most people do is a simple one a white pice of card and simply phocus your blue,green and red on the board...till they show if blue fails to illuminate then a shop maybe the answer as you dont want to start messin around if you dont what you are doing,,,

Posted on Aug 10, 2007

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I took the back of the tv off and the blue lamp is not bright like the red and green. Could this be a coolant problem or lamp. I have the PT5492S Akai rear projection TV.

The blue is usually dimmer than the other two lens; what I would suggest is try to look into the lens with the set on; BE CAREFUL AND NOT TOUCH ANYTHING INSIDE THE SET.

If the red and green show a picture but the blue looks like a floodlight you have bad Glycol in the blue tube (common in these sets).

If all have a normal picture remember to wipe the lens clean at the top; do not try to take the lens etc apart.

Before you rate this information let me know what you find.


Aug 15, 2011 | Akai PT5492S 54" Rear Projection...

1 Answer

Hi there ive got a toshiba 43vj13p very blue picture

Hello, you can then buy a replacement lamp or lamps Toshiba 43VJ13P? Thank you

Dec 21, 2009 | Toshiba 53H71 53 in. Rear Projection...

1 Answer

Looking for lights....

You can find replacement parts for this model from the following Sony OEM parts distributor. Here's the links to order the original Sony blue CRT, green CRT, and red CRT (the 3 "light bulbs") for this model from that major parts distributor if needed:
Sony KPR-53CX35 Replacement Part Blue CRT Bulb / Lamp

Sony KPR-53CX35 Replacement Part Green CRT Bulb / Lamp

Sony KPR-53CX35 Replacement Part Red CRT Bulb / Lamp

Apr 01, 2009 | Projection Televisions

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I have no picture coming out of my blue picture tube

ok 2 things could be wroung one is u have a bad crt board one way to find out is swap the blue crt board with the red crt board and see if the blue comes up and now u have no red. now u can not swap it with green the green crt board is allways by it self noe if that does not work and u still have no blue it could be the picture tube or something from the video board that is blaking it out and without a scope u cannot trace it but if u are lucky it will be the crt board hope this helps u

Sep 05, 2008 | Philips 55PP9401 55" Rear Projection...

1 Answer

The red, blue, and green are all out of alignment. HELP!

Sounds like the guns are out of alignment. This isn't normally something that a user can adjust.

Has the television been dropped/jarred or moved recently?

If the TV has a manual degauss function, you can try that (assuming it's really a CRT). Otherwise unplug it from the wall for a half hour, then plug it back in and see if anything has changed.

Apr 07, 2008 | Panasonic PT-53TW53 53" Rear Projection...

1 Answer

Red & green lamps shutting off leaving a blue screen

Could you show a picture of the distended cover you mentioned?


Were the light blue lines you were referring to, diagonal, or truly horizontal?

Oct 15, 2007 | Sony KP-57WS500 57" Rear Projection...

1 Answer

Blue (actual) lamp out of focus. Picture is washed out and milky.

I found a local tv repair guy who sold me the the CRT fluid for $80 and I gave it a go. It wasn't easy, but it worked. If you are really interested I'll tell you how I did it.

Aug 11, 2007 | Philips Magnavox 9P6034C 60" Rear...

3 Answers

Green Picture

I guess it's missing blue. Even if you see the blue crt working it's not enough and focalised. replace the coolant in it and also check if you have some coolant leak on the crt pcb.

Apr 10, 2007 | Samsung HCN436W 43" Rear Projection...

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