Question about Televison & Video

1 Answer

PANASONIC 53" REAR PROJECTION TV. THE BLUE CONVERGENCE WENT OUT. IT HAS A VERYIVAL PIN CUSHION (BOW TIE) EFFECT CENTER SCREEN IN THE BLUE. RED AND GREEN ARE OK.

Posted by on

1 Answer

  • Level 2:

    An expert who has achieved level 2 by getting 100 points

    Hot-Shot:

    An expert who has answered 20 questions.

    Corporal:

    An expert that hasĀ over 10 points.

    Mayor:

    An expert whose answer gotĀ voted for 2 times.

  • Expert
  • 70 Answers

As funny as this sounds, replace the la7845n vertical i.c.
this is causing your problem.

Posted on Oct 15, 2008

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

Add Your Answer

Uploading: 0%

my-video-file.mp4

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

×

Loading...
Loading...

Related Questions:

1 Answer

How do i fix my samsung 1080i hdtv. It has a double picture and is red and blue, and also looks like a bow tie effect


The tv have a problems known as a convergence problems,it dead.Tv have colors lines R,G,B mis alignments,have colors shadows pictures or 3D pictures look alike?The tv convergence board have dead 2 STK convergence ICS and some or all it resistors are dead too.These parts on the tv convergence board,must be replaced to solved pictures convergence problems.The shop,will cost u like $300-$350 for parts and labors.

Nov 21, 2010 | JVC AV-48WP74 48" Rear Projection...

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...

2 Answers

Blue convergence wont work


This is a common problem. Your convergence has gone out.

Common symptoms are...

1) 3D Video
2) Warped Video
3) Convergence menu does not adjust the red or blue correctly. 4) TV Chirps

Go here for a solution...

http://www.fixya.com/support/r2861627-updated_convergence_problems_amp

Sep 05, 2009 | Panasonic PT-47WX49 47" Rear Projection...

1 Answer

Panasonic 53" tv pt-53wx42


your convergence ic is going bad. remove front and adjust the level of blue.

Jun 01, 2009 | Panasonic PT-53WX53 53" Rear Projection...

1 Answer

Mitsubishi VS-50501A convergence problem. The image looks like a bow tie and the convergence will not align. This TV only has manual convergence. I already replace the STK391-020 ICs, it has 3 of them....


These sets need to have all three colors - RED - BLUE - GREEN - lined up correctly on the screen in order for the picture to look normal. When its out of alignment the video will look 3-D, wavy, distorted, etc. Most of the time you just need to adjust your convergence in the menu. If you cannot adjust it in the menu - then your convergence is broken and needs to be repaired.

Convergence problems are very common on all Projection TV sets including Sony,Samsung, JVC, Philip Magnavox, Panasonic, Akai, Pioneer, Hitachi, Zenith, and others. You can get a convergenece repair kit wiith instructions from the links below.

Here are some of the most common problems with these sets...

Problem #1) Convergence

Yours may have one or more of the following symptoms
  • Screen Looks 3-D
  • Colors wont align
  • Screen may look distorted or warped
  • No Audio/Video - makes a chirping sound.
Problem #2

Another common problem is dull or washed out video.
Your TV2_bing.gif may have one or more of the following symptoms....
  • Dull looking picture
  • White looking picture
  • Halos around objects
  • Red/Orange looking picture

You can see some more examples and find a fix here
bb0cf99.pnghttp://www.fixya.com/support/r2861467-solution_video_looking_whiteish_dull

Feb 15, 2009 | Mitsubishi VS-50501 50" Rear Projection...

1 Answer

MITS WS-65869 The green CRT is creating a warped image.


These sets need to have all three colors - RED - BLUE - GREEN - lined up correctly on the screen in order for the picture to look normal. When its out of alignment the video will look 3-D, wavy, distorted, etc. Most of the time you just need to adjust your convergence in the menu. If you cannot adjust it in the menu - then your convergence is broken and needs to be repaired.

Convergence problems are very common on all Projection TV sets including Sony,Samsung, JVC, Philip Magnavox, Panasonic, Akai, Pioneer, Hitachi, Zenith, and others. You can get a convergenece repair kit wiith instructions from the links below.

Here are some of the most common problems with these sets...

Problem #1) Convergence

Yours may have one or more of the following symptoms
  • Screen Looks 3-D
  • Colors wont align
  • Screen may look distorted or warped
  • No Audio/Video - makes a chirping sound.
Problem #2

Another common problem is dull or washed out video.
Your TV may have one or more of the following symptoms....
  • Dull looking picture
  • White looking picture
  • Halos around objects
  • Red/Orange looking picture

You can see some more examples and find a fix here
bb0cf99.pnghttp://www.fixya.com/support/r2861467-solution_video_looking_whiteish_dull

Dec 13, 2008 | Mitsubishi WS-65869 65" Rear Projection...

2 Answers

Alot of red and double image


I had same problem. First went in tomenu and went to set up settings and went to convergence area. I then reset this back to default, which I later was told I should have not done so do not attempt this it will temporarily fix issue but problem will persisit.
I found a local tv repair man thru tvrepairguy.com or something like that as they are hard to find.
The issue turned out to be the convergence boards or circuits, He then went in to master control and rset the convergence settings for the main picture by lining up the red and blue lines on to a white cross on the screen until it is black and white with no red or blue protruding vertically or laterally. He then did this for 7 points around center picture moving the lines. He suggests you play with this for awhile in a position you would normally sit in and at proper eye level to give you the truest picture for alignment. The part cost 109 to replace with labor and service total was 331. The repairman was very nice and explained the issue should be fixed and we should get another 6 to 7 years out of television.
Hope this helps,

Dec 04, 2008 | Panasonic PT-53WX53 53" Rear Projection...

1 Answer

Convergence


Did you remove 1 leg of each resistor out of circuit when you checked the resistors? sounds like thier is still one resistor open or maybe one of the new IC pins need abit more solder.

Apr 09, 2008 | Panasonic PT-53TW53 53" Rear Projection...

1 Answer

Convergence


check for loose connection by the convergence ic's
Convergence amp ic bad
http://home.earthlink.net/~oleg.filippov/ConvergenceFix.htm
http://cmpalmer.blogspot.com/2006/11/fixing-my-own-tv-part-ii.html
http://www.hdtvoice.com/voice/showthread.php?t=28929

there is high voltage in this area be careful.

Jan 29, 2008 | Panasonic PT-53TW53 53" Rear Projection...

1 Answer

Phillips 60 inch HD rear projection? Convergence!


http://home.earthlink.net/~oleg.filippov/ConvergenceFix.htm
http://cmpalmer.blogspot.com/2006/11/fixing-my-own-tv-part-ii.html

Dec 26, 2007 | Panasonic PT-53WX53 53" Rear Projection...

Not finding what you are looking for?
Televison & Video Logo

Related Topics:

119 people viewed this question

Ask a Question

Usually answered in minutes!

Top Televison & Video Experts

The Knight
The Knight

Level 3 Expert

69570 Answers

Electro Med Services...
Electro Med Services...

Level 3 Expert

6355 Answers

yadayada
yadayada

Level 3 Expert

63242 Answers

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

Answer questions

Manuals & User Guides

Loading...