Question about Sony KP-51WS500 51" Rear Projection Television

1 Answer

BLUE SCREEN WITH FAINT CURVED TRACE LINES

In one of your posts, your expert responded "Sometimes you will get a blue cast (blue tube seems to be the one that goes most) to the picture with faint curved trace lines.
If you have this kind of trouble there is something you can do to try to correct it---it requires no replacement of parts--only some adjustments."

Could you please explain what adjustments can be made and if they can be made by a novice?

Posted by on

Ad

1 Answer

  • Level 3:

    An expert who has achieved level 3 by getting 1000 points

    Top Expert:

    An expert who has finished #1 on the weekly Top 10 Fixya Experts Leaderboard.

    Superstar:

    An expert that got 20 achievements.

    All-Star:

    An expert that got 10 achievements.

  • Sony Master
  • 14,553 Answers

I am the one who wrote that solution--this varies a little from model to model but here is the basic:




v\:* {behavior:url(#default#VML);} o\:* {behavior:url(#default#VML);} w\:* {behavior:url(#default#VML);} .shape {behavior:url(#default#VML);} Normal 0 false false false MicrosoftInternetExplorer4 /* Style Definitions */ table.MsoNormalTable {mso-style-name:"Table Normal"; mso-tstyle-rowband-size:0; mso-tstyle-colband-size:0; mso-style-noshow:yes; mso-style-parent:""; mso-padding-alt:0in 5.4pt 0in 5.4pt; mso-para-margin:0in; mso-para-margin-bottom:.0001pt; mso-pagination:widow-orphan; font-size:10.0pt; font-family:"Times New Roman"; mso-ansi-language:#0400; mso-fareast-language:#0400; mso-bidi-language:#0400;} SONY WITH BLUE SCREEN PROBLEM:

You may have a bad blue picture tube but there is a way to deal with this first----the set has a black plastic block with six controls---three are Focus(red,green,blue) the other 3 controls are Screen controls(red, green, blue) Someone has to remove the entire piece on the front of the set below the screen(usually a plastic part) most of the time it is secured with 3 screws on either side of the set in the back; once you remove the screws the entire piece should pull out(pull from right to left(it will not fall off or come out easy--it is held in with several large plastic pegs) With it removed there is an inspection plate with 4 screws-----the screen/focus block is behind it.

You need to look very closely at the block to identify the focus versus screen controls----one row left to right will be marked Focus and the other row left to right will be marked screen------YOU need to locate the Blue Screen control(they are black like the block) With the set on(be careful) go to a video input BLUE SCREEN WITH FAINT CURVED TRACE LINES - clip_image001.gif with nothing connected---if you see a blue screen as well as the input number turn the BLUE SCREEN CONTROL SLOWLY TO THE LEFT UNTIL THE BLUE is gone.

If this cures the problem you may only be buying yourself some time----if the blue picture tube is bad sooner or later this trouble may return----I have seen sets where this was adjusted and the set worked for a year or more with no repeat of the trouble----replacing the blue tube would likely cost you 400 - 500 parts and labor.

I do this here for free so if this has helped you take a moment and give me a vote here.

SD TECH

Posted on Nov 15, 2009

Ad

1 Suggested Answer

6ya6ya
  • 2 Answers

SOURCE: I have freestanding Series 8 dishwasher. Lately during the filling cycle water hammer is occurring. How can this be resolved

Hi,
a 6ya expert can help you resolve that issue over the phone in a minute or two.
best thing about this new service is that you are never placed on hold and get to talk to real repairmen in the US.
the service is completely free and covers almost anything you can think of (from cars to computers, handyman, and even drones).
click here to download the app (for users in the US for now) and get all the help you need.
goodluck!

Posted on Jan 02, 2017

Ad

Add Your Answer

Uploading: 0%

my-video-file.mp4

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

×

Loading...
Loading...

Related Questions:

1 Answer

T.V. comes on show blue then goes out after 3 second and only hear sound


When it comes on with a blue screen is it rather bright and or has curved faint trace lines in the picture?

Dec 12, 2012 | Sony KP-65WV600 65" Rear Projection...

1 Answer

Blue lines on screen


Go to a unused video input and examine the screen----if you see blue with slightly curved trace lines the blue screen control for the set is set just a bit too high.

Dec 03, 2012 | Samsung PCL5415R TV

1 Answer

Toshiba Model 51h84


The wavy when cold is a issue with a board in the set--Hyper board--the warmup until it begins to work will gradually get longer and longer.

The blue: look at set on a unused video input--if see faint curved blue lines with some blue visable on the screen the blue screen control needs to be adjusted just slightly down until the blue and curved lines are not seen.

May 15, 2012 | Toshiba 51H84 51" Rear Projection...

1 Answer

I can see faint blue lines occassionally, is this a convergance chip problem?


One of two problems you have.

One is if you go to a unused video input, you should only see the video input number in green, ie video 1 etc.

If you see some blue in the background or faint curved lines you have a screen problem--it may be adjustable and I can tell you how.

Second, these sets rarely have intermittent convergence problems: Picture will look 3d in some way red, green or blue outlines etc.

Let me know which you have and I will help.

The model is more prone to the first problem than the second. Reply to this post with a comment if you need my help.

SD TECH

Jun 20, 2010 | Sony KP-57HW40 57" Rear Projection...

1 Answer

Instructions for replacing the bulbs


The "bulbs" for a KP-51WS500 are 3 picture tubes--they are no longer available from Sony. The only way to get one is remove it and send it out for REBUILD--very expensive and usually not worth doing..

All these sets had bad tubes--a lot of them had the wrong tubes installed when they were sold---I know as I replaced dozens of them when these sets were still under Sony warranty--


Tell me what problem you have and I will try to help you---the most common problem is the screen will go bright blue, red , green and or set will shut off.

Sometimes you will get a blue cast (blue tube seems to be the one that goes most) to the picture with faint curved trace lines.

If you have this kind of trouble there is something you can do to try to correct it---it requires no replacement of parts--only some adjustments


If this information has helped you rate this solution as I do this here for free.


I am here to help people.

SD TECH

Nov 05, 2009 | Sony KP-51WS500 51" Rear Projection...

1 Answer

When a blue screen appears, what could be the problem?


On this model KP-57HW40, if the screen is blue with or without some slight curved trace lines---either you have a bad BLUE picture tube or maybe an adjustment that can restore the set to normal operation.

A lot of these sets had bad picture tubes----if a bad tube they are not available--only way to get one is remove the bad one in the set and have it rebuilt--very expensive and usually not worth the costs.

Let me know---if you go to a unused video input--is the screen Blue with or without faint curved lines?

If it is I can give you fairly easy instructions on how to try to adjust for this-----Understand: if the adjustment corrects the problem you may only be buying some time with this set---if the problem was caused by a bad tube---sooner or later it may come back...

Let me know if you want the instructions and I will post them here for you.


Regards, SD TECH

Oct 18, 2009 | Sony KP-57HW40 57" Rear Projection...

1 Answer

Color lines out of focus


Best Solution posted on Apr 12, 2008 Asker's Rating 3%20stars_w.png
dc2eb76.jpg MikeNJ1964
Rank:guru_s.gif Guru sony.gifSony Expert
Rating: 89%, 674 votes
You have a completely different problem. The screen voltage for the blue picture tube is slightly too high on your set. This will put fine lines in the background of the picture, called retrace lines. This is very common and easy to correct. Remove the front speaker cover and the access panel behind it. Look inside and you will see a black box with six controls, each control having a little white glue on it. This is the Focus/Screen block. Three controls are labeled Focus and three are labeled Screen. The screen control in the center is for green but I am not sure if the screen control on the left or right is for blue for your model. With the TV on, set it to VIDEO 1 but do not connect anything to the VIDEO 1 jacks. This will produce a pure dark picture, showing any faint lines in the background. Choose one of the screen controls and increase (turn clockwise) it slightly. If the blue lines do not get brighter it means you are turning the red screen control, so put it back where it was and choose the other screen control. When you find the blue screen control, decrease (turn counter-clockwise) it until just when the blue lines are gone. If you want you can check that the red and green screen controls are set to just below the point where their faint lines are visible. When done, replace the panels and your picture will be back to perfect.
Did you think this was helpful? Yes No
new MessageRate('spn1737581','spn1737581cnt','spn1737581stats','spnRateWord1737581','div1737581_yes','div1737581_no','imgStar1737581','ancChangeRating1737581','divChange1737581',1737581,0,0,0,false); Solution #2 posted on Jul 04, 2008 Asker's Rating 0%20stars_w.png
noavatar_s.gif gator149
Rank:nonexpert_s.gif Apprentice sony.gifSony Expert
Rating: 0%, 0 votes
MikeNJ1964 was exactly right! I have a Sony KP-65WV600 that had horizontal green lines that showed when the picture was darker. I had to remove 3 screws on the right and left side of the tv holding in the speakers...carefully pop out the middle panel from the clips holding it in....remove 4 screws from the cardboard in the middle and remove the cardboard. I then saw the six screws. The adjustment screws were the three below. I turned the middle screw until the lines dissapeared. I tried the left screw and blue lines appeared which I then adjusted away.
THANKS a bunch. SAVED me money!!!

May 15, 2009 | Sony KP-65WV600 65" Rear Projection...

10 Answers

Faint red lines in a curved arch like pattern


Guys I did this myself real easy. Just don't turn the corresponding screw too far. Only need to adjust it until the lines go away. Do it on a darker screen so the lines are more visible. I did the red 2 years ago and the green 6months before that. The blue lines are coming on my screen now and I've fixed it in 10 minutes. The TV is amazing.

Apr 10, 2007 | Sony KP-51WS500 51" Rear Projection...

2 Answers

Green dot in middile of my screen


The green dot in the center sounds like a burn mark on one or more of the picture tubes inside the set, and the curved lines are telling me that you have a problem in the convergence circuits. The blue haze around everything white tells me you either have a lot of dust build up on the lens over the CRTs, or your picture tube(s) are very weak. If this set is over about 12 years old, I would replace it. I doubt if you will be able to get the green dot out of the picture without changing the tubes which would be VERY expensive.

Jan 05, 2007 | Philips 60PP9401 60" Rear Projection...

Not finding what you are looking for?
Sony KP-51WS500 51" Rear Projection Television Logo

123 people viewed this question

Ask a Question

Usually answered in minutes!

Top Sony Televison & Video Experts

kakima

Level 3 Expert

102366 Answers

The Knight
The Knight

Level 3 Expert

74198 Answers

Jerry Greenberg
Jerry Greenberg

Level 3 Expert

1667 Answers

Are you a Sony Televison and Video Expert? Answer questions, earn points and help others

Answer questions

Manuals & User Guides

Loading...