Question about Panasonic PT-47WX49 47" Rear Projection Television

2 Answers

PT-47WX, Blue streaks across the screen?

All of the sudden, I turn on the TV and there are curved blue lines going across the screen and also thin blue reflections vertically offset from the picture. Tried adjusting the convergence, which moved the streaks around slightly, but didn't get rid of them. I popped off the back cover, and when I covered the blue light with a piece of paper, the streaks were gone, so it must be something in that bulb, right? I've heard of bulbs and/or tuner blocks going bad on these. Any ideas about what I should do? I'm not a tv techy by no means at all, but I could probably change a bulb. If so, where can I get parts?

Posted by on

2 Answers

  • Level 1:

    An expert who has achieved level 1.

  • Contributor
  • 1 Answer
Re: PT-47WX, Blue streaks across the screen?

I have an older Panasonic Rear Projection HDTV and I just replaced the amp IC's - now the color is off, I can't get a vivid picture. It seems as if there is a greenish tint that I just can't get rid of - - - any thoughts on what this might be?

Posted on Feb 01, 2008

  • Level 2:

    An expert who has achieved level 2 by getting 100 points


    An expert that got 10 achievements.


    An expert that got 5 achievements.

    Vice President:

    An expert whose answer got voted for 100 times.

  • Expert
  • 398 Answers
Re: PT-47WX, Blue streaks across the screen?

It is not a bulb. It is a picture tube. If there are thin blue lines across the entire screen, not just the edges, and the picture itself looks too blue, it means that the blue picture tube is being driven too hard. This could be because the blue screen voltage is too high, the boost voltage on the blue picture tube is too low, or the video output is leaky or shorted. If the picture has what looks like blue arcs and double images on one or more sides of the picture, it means that one of your convergence IC's has burned out and needs to be replaced. These are things that should be tested and serviced by a qualified tech, so allow an experienced tech to handle it for you.

Posted on Sep 07, 2007

Add Your Answer

0 characters

Uploading: 0%


Complete. Click "Add" to insert your video. Add


3 Points

Related Questions:

1 Answer

When i turn on my tv i can hear the sounds but my whole screen is blue

do you see thin curved blue lines going from bottomto top of screen. If so its most likley a blue CRT drive board issue. If its a solid blue it could be a small signal board issue.

Aug 04, 2011 | RCA Scenium D40W20 40" Rear Projection...

2 Answers

Blue Lines streaking in from left side of 70 inch Sony HD TV

okay my friend your tv vertical circuit is begining to get faulty you could be having some bad caps or the vertical ic is defected have a tech check your tv for repairs.if you are not a tech you cannot repair the set by your self.good luck.

Jun 25, 2007 | Sony Grand WEGA KDF-70XBR950 70" Rear...

1 Answer

Letters and numbers are 3d and curved picture


red, green, and blue lines curve across the top of tv is cause by defective convergence STK IC or you have open resistor at convergence section. if you have defective RGB Color vertical ramp probably you have defective STK IC..


Aug 02, 2009 | RCA D52W23 52" HDTV CRT TV

1 Answer

Red and blue streaks across the screen top and bottom

The Convergence Amp IC's are bad. You should call a good TV Tech for this repair.

Jul 11, 2009 | Mitsubishi WS-65809 65" Rear Projection...

1 Answer

Weird blue flash when tv turns on or off

TV will need service soon, blue CRT is on its way out, will need replacing

Mar 25, 2009 | Sony KP-51HW40 51" Rear Projection...

1 Answer

I have a KP-65WV700 and the screen looks a lil to green

OK, I'm the guy that was having the same problem, but had a blue tint to the screen. I also had blue lines running across the screen, and when I followed the steps below that were posted by another user not only did the lines disappear, but the blue haze vanished as well. My tv looks like it's new again, so you may want to try this:

noavatar_s.gif Guest
Rank:nonexpert_s.gif Apprentice
Rating: 0%, 0 votes
I have fixed this several times on my KP 65WV700

As Slinteriors posted if it is a thin curved line you need to adjust the screen control, it's sorta like a brightness for each color, and if one color is too high it will produce a thin curved line.

The best way I have found to get to the controls is by removing the lower grey speaker cover front the front of the TV. There are 6 screws if i remember, 3 on each side. Then it snaps off, seems like its going to break but you have to pop it off pretty good.

Once its loose you have to remove a cardboard like cover plate in the center that will give you access to the small controller board.

Now be very careful while experimenting on which knob controls which colors. Turn them very slow, if you turn to fast you will cause your TV to shut down. If this happens, turn the adjustment back to original spot and turn TV back on and take it slow.

Adjust the correct color until the line just goes away. Its easiest to do this with a black screen.

Nov 18, 2008 | Sony KP-65WV700 65" Rear Projection HDTV

1 Answer

Blue streak appears across the tv

i have the same thing with mine same brand and all the problems. i was stupied and opened it and under the the circle retrackable scope is another piece u can unscrew but dont. there is liqiud in there and it will spell all over the best thing is to take it in and spent 40.00 to look at it and 160.00 for a new tube yes a tube runs about 70.00 to 160.oo for one tube. good luck

Aug 06, 2008 | Panasonic PT-47WX53 47" Rear Projection...

3 Answers

Sony kp-65wv700

I followed GuestUser/ Slinteriors advice and I fixed it. Open the front of the TV and there are 6 little nobs in the front. The botton 3 are what you need to adjust. from left to right the color controls are BLUE, RED GREEN. For the blue lines, slightly (I really mean very slightly) turn the botton left nob clockwise (right).

Mar 21, 2008 | Sony KP-65WV700 65" Rear Projection HDTV

1 Answer

Blue streaks across picture

Can you describe in a little more detail what the symptoms are? Are the streaks thin lines or are they large thick swashes of Blue? Is yur video still visible? Sounds like it may be the blue convergence amps or the resistor tied into the amps. is there anyway you can post a picture of your screen distortion?

Jan 26, 2008 | Pioneer SD-533HD5 53" Rear Projection HDTV

Not finding what you are looking for?
Panasonic PT-47WX49 47" Rear Projection Television Logo

530 people viewed this question

Ask a Question

Usually answered in minutes!

Top Panasonic Projection Televisions Experts

Jaime Hernandez

Level 3 Expert

2267 Answers

Josh Whitehead
Josh Whitehead

Level 3 Expert

1142 Answers

The Knight
The Knight

Level 3 Expert

66352 Answers

Are you a Panasonic Projection Television Expert? Answer questions, earn points and help others

Answer questions

Manuals & User Guides