Question about Mitsubishi WS-65869 65" Rear Projection Television

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

When I have the convergence screen on the green lines bunch up in the middle in a bow tie effect - the green crt is completely out of sinc with the red and blue creating this warped image. Any ideas would be greatly appreciated.
Thanks.

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  • 3,459 Answers

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
MITS WS-65869 The green CRT is creating a warped i - bb0cf99.pnghttp://www.fixya.com/support/r2861467-solution_video_looking_whiteish_dull

Posted on Apr 03, 2010

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Do not have full 64 point convergence control on the green crt. Most all ofrt of the picture is in convergence but the top first two lines are bowed and the middle bottom line is arced in the center....


No,the tv convergence board the 2 STK convergence ICS and some or all of it resistors are dead.Tv convergence board must be replace the 2 STK convergence ICS and also must test all of the resistors and replaces all those dead resistors too.

Mar 02, 2011 | Philips 60PP9753 60" Rear Projection...

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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.

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1 Answer

For some reason the projection does not fill out the entire screen its bow tied in the middle how do i fix that im pretty handy


Projection TV sets have two common problems. The first is known as a convergence problem. Common symptoms are....
  • Screen looks 3D
  • Colors don't line up
  • One or more colors can't be adjusted when using the convergence menu.
  • Screen is bowed or warped.
The other common problem is cloudy CRT fluid in the lens.

Common Symptoms - you TV may have one or more of these...
  • Dull Video
  • Bright video - whiteish
  • Redish video
  • Halos around objects
You can see some example photos and find a solution here...

http://www.fixya.com/support/r2861467-solution_video_looking_whiteish_dull

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Our tv is blury, double vision with whites going


There seems to be two problems with the unit. The first symptom indiates your convergence IC's needs to be replaced. The second symptom coud be a several things, 1. Bad connections on the Crt board of the green tube, 2. The 200v screen bias voltage supplied by the flyback could have bad connections on it. Seems you have intermittent cold solder joints. Check the D board around the Flyback area for bad connections, or old grey looking solder connections all should look shiny. 3. The Green Crt maybe going faulty, the lines going thru the picture are scan lines and indicates that the Screen controls are to high. But i know you have'nt adjusted these so i would suspect the Green Crt is Faulty. But check solutions 1&2 first, One way to find out if its bad is to unplug the green crt board from the tube and turn the set on if it stays on and does'nt shut down then it is faulty, also while turning on look at the crt's neck for sparks which indicates arching in the tupe and will need to be replaced. Replacing the Convergence IC's will solve the distorted pic issue.

Nov 17, 2009 | Sony KP-51WS500 51" Rear Projection...

1 Answer

Picture bows in towards middle


YOU HAVE A ALIGNMENT PROBLEM, ON YOUR BOW OR PINCUSION, OR A BAD RESISTOR, THE COLORS NOT LINING UP COULD BE A CONVERGENCE PROBLEM. I ADVISE YOU TO LET A EXPERT TO THIS DUE TO THE HIGH VOLATE ON THE CRT(PICTURE TUBE)

Jun 07, 2009 | RCA Televison & Video

1 Answer

RCA Projection TV Model #p46921, Has bowing effect of pictures


Go to Menu then setup look for convergence if you do not see convergence on menu then you have a open FUSE FL231 it is on right side of FBT flyback transfomer there is 3 of them small brown rectrangler looking caps it will be the one in the Middle.

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Green bow tie, convergence not helping


Yes, your geometry correction has failed and you will need to seek qualified tech for help. You need what are called STKs and you should be able to get the job done inhome for under 300.00
Craig www.classtorations.com

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I'm not a 100% positive this would fix your TV, but I found the convergence board on PartStore.com for about $80. Hope this helps.

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If your not a tech, its highly advisable to not even open the set because of the high voltage and x-ray radiation issues. Now if your a technician ,you gonna need to get a service manual, Look up the convergence circuit, Find the two or three convergence driver ics, find the b+ feed resistors to those ic, and order the exact replacement parts. if you dont replace all at once, and with exact replacements, you will be in the same boat a few months down the road. This is not a repair a handi-person should consider doing as even if you get the ics replaced, your gonna need to do some minor or could be major convergence alighnment and your gonna need a cross hatch generator to do this. This repair should cost ya about 300 to 400 bucks? Sorry man Good Luck

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