Question about Mitsubishi VS-50609 50" Rear Projection Television

1 Answer

-Convergence IC replaced -Colors unmovable from within any convergence servicing

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  • Matt Nov 06, 2012

    I like the first suggestion, but I need to know the part numbers or something to know what kind of resistors I need to purchase. I also need to know which ones deal with the convergence, so I know which ones to replace!

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  • Mitsubishi Master
  • 14,553 Answers

You are going to need a ohm meter and they will be low value resistors--color bands denote the value and they have to be tested, do not think its possible for me to tell you which to replace as I would check them to know which.

You might find the service manual with Google for free at scribed.

Posted on Nov 07, 2012

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Posted on Jan 02, 2017

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electronick
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SOURCE: Mitsubishi ws-65809 Convergence will not align correctly

You may also have a resistor burnt out for the convergence ICs.. They are all right in front of the ICs and will usually show browninsh if burnt up. If bad, replace the pair and maybe the ICs as well if they've failed again. If your new ICs fixed the lines so they'll move, then you may have problems with the centering magnets on the yokes of the crts. Dont move the yokes or magnets if you can help it, but look to see if some of the manufacturers glue broke free and let the magnet spin around the neck of the tube. If so, try to put it back where it was and then re-converge.

Posted on Dec 06, 2008

Bat1956
  • 585 Answers

SOURCE: Mitsubushi VS-5043 Rear Projection,,, Replaced 3

There are a few low value 1-watt flameproof resistors in the convergence yoke circuits. They typically range from 1 to 3 ohms. An open resistor will cause the respective color to be non-responsive. Also chack that you have the convergence yokes re-connected to the correct connectors on the board.

Posted on Nov 10, 2009

  • 1 Answer

SOURCE: mitsubishi ws65711 - 6 years old - colors warped

replace stk393-110

Posted on Jan 15, 2010

Ecollier2012
  • 3459 Answers

SOURCE: Mitsubishi VS-50501A convergence problem

Projection TV sets have several common problems listed below.

Problem #1) Convergence

Symptoms:

  • Screen Looks 3-D
  • Colors wont align
  • Screen may look distorted
  • No Audio/Video - makes a chirping sound.
Example Photo:
5f6e85c.jpg
Problem #2 CRT Fluid has clouded over.

Symptoms


  • Dull Video, Washed out
  • White/Bright looking video
  • Halos around objects
  • Red/Orange looking
Example Photo:
ee1ca68.jpg

You can see more examples and find a fix here...

bb0cf99.pnghttp://www.fixya.com/support/r2861467-solution_video_looking_whiteish_dull

Posted on Mar 25, 2010

SD Tech
  • 14553 Answers

SOURCE: Mitsubishi Medallion 1080 WS-55413 - colors not aligned

There is no "reset" as the set has in the customer and tech menus ways to attempt to manually adjust this.

under convergence in the customer menu select advanced and follow the instructions on the screen.


If Red or Blue or Green are skewed and will not adjust it means one of the two STK-394-250 CONVERGENCE chips this set uses is bad.

Depending on where you buy them they will range in price from about 12 dollars each to nearly 35 dollars each.

Let me know what you find; this may or may not be a do it yourself repair as some real expertise is required to correctly get at and replace the chips.

SD TECH

Posted on May 12, 2010

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1 Answer

What is convergence IC problem


Convergence has to do with how different colors are displayed on a screen or monitor - typically the rear projection and some other types. When colors are overlapping to create unexpected combinations, or leave gaps between areas where overlapping is expected that results in a shifted red, green or blue image strip or edge - that is an indication of a convergence issue. They can look like this in severe cases:

c31c1afa-63aa-42ee-9cc7-7b07e09559be.jpg


Colors will drift, so manufacturers often include a utility to help you nudge the colors back in the right place. Most times this utility is buried in the Set Up Menu and when activated, produces a screen like this:

6c0170ed-2cd6-4dfa-bbcb-a10a7d20f92f.jpg


You will need to adjust the red, green and blue colors for each cross so that only a white cross is displayed. Keep red, green and blue fringing to a minimum. When you're done, the screen should look black and white, symmetrical and straight - like this:

40e4c7a6-f241-4888-a151-d21b0792cb71.gif

Problems arise when you are no longer able to coax the utility to give you these crisp, B&W results with no red, blue or green ghosting. This is often due to a failing convergence integrated circuit ("Convergence IC"). Many times, replacing it will solve the problem, but other times it can be the result of failing components either ahead or after this IC. If you're attempting to replace this IC, please make sure the TV or monitor has been *unplugged* for 24 hours or more to allow the dangerously high voltages to dissipate.

Sep 08, 2014 | Hitachi 50VS810 50" Rear Projection HDTV

1 Answer

Accessing Service menu to fix convergence


How far off are the colors misaligned such that you need to enter the service mode to fox them? If one or more of your colors has taken a dramatic shift in position, especially on any edge, then do not attempt to correct through the menu. If one of your convergence IC's has failed then the colors will not align on the screen. If you try to correct this in the menu, you will only be screwing up all the settings and making the set worse. When the IC is replaced with a new one your colors will still be way off, not because the new IC is not working, but because now the menu settings are too far off. I have been to many houses and spent 45 minutes replacing a burned out convergence IC followed by more than an hour realigning everything the customer messed up.

Aug 18, 2007 | Mitsubishi WS-55809 55" Rear Projection...

3 Answers

Colored lines at top and bottom when tv comes on and seeing double vision in different colors at all times


If your tv is not a DLP the problem is in the convergence, try to adjust it using your original remote control go to the setting menu then to the convergence section. Adjust the red and blue convergence. you should move the red and the blue in up, down and left, right if this color does not move far enough your convergence IC is already defective. Replacing this convergence IC will solve the problem. In locating this convergence IC you should remove the back cover of your unit but be sure to unplug it before doing this. This convergence IC is attached to a large aluminum plate, it is the heat sink, and it has a marking of stk- ### followed by numbers. You can try to pull it out using a soldering iron and soldering pump but be careful you may damage the board and cause much problem to your unit. Or you can contact a technician to do it for you and save you from stress good day and best regards.

Aug 28, 2011 | RCA Televison & Video

1 Answer

Our samsung HCl4715W tv is all connected right but our picture is scrambled where you see double exposure and the color is off. Can not find our manual. any suggestions?


The problem of your tv is the convergence. Projection tv set has a 3 colors red,blue and green this 3 colors must be properly lined up to look the video normal. When this 3 colors is not properly aligned the video will produce a double image of color or like a 3d or wavy. In order to fix this problem you should adjust it in the menu program of your tv you should move any of the colors to up or down, left or right if you cannot align the 3 colors the problem is the convergence ic it must be replace. To locate the convergence ic you should remove the back cover of your tv but be sure to unplug your tv, you will see this ic attached in a large aluminum plate it has a marking of stk--- and followed by a numbers. or you could contact a service technician do do it for you and save you from stress. Good day and best regards.

Jul 17, 2011 | Samsung HCL4715W 47" Rear Projection...

1 Answer

Tried to auto adjust the guns, will not come within range


Hi Tod,

If colors do not align correctly, most likely you have a convergence failure. This requires replacement of the 2 STK ICs and possibly some low ohm resistors.

Some Toshiba have a Horizontal oscillator/Drive IC failure that results in a small or shrunk picture (2-3" border on all sides). The 3 colors do not align properly because of the reduced Hor drive signal. The convergence adjust controls will work but not allow good adjustment. Convergence is ok, Hor Drive signal is incorrect.

Many do-it-yourselfers mistake the Hor Drive problem in Toshiba RPTV with convergence failure. Too much adjustment of the convergence controls may cause the saved data to be really messed up and require more difficult alignment in the service mode.

If minor or simple adjustments in the customer convergence adjust menu do not fix your problem, there is a fault. Stop adjusting until fault is repaired

Convergence failure can be accurately identified with the Convergence Gallery on our website. Service in Toronto, Ottawa, Calgary, Edmonton and other Canada cities.

easyab

Apr 21, 2010 | Toshiba 42H81 42" Rear Projection...

1 Answer

Replaced IC chips, but can't fine-tune convergence.


U know how to use a multimeter right?Check and replaced all the resistors near the 2 convergence ICS.Most resistors are big and blue core in colors.

Feb 15, 2010 | JVC AV-48WP30 48" Rear Projection...

1 Answer

Lost the convergence on my menu how do i fix this problem


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;} 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. Here is a quick test.... Using your original remote go-to the TV settings then go to the convergence section. Try to adjust the red and then the blue convergence. You should be able to move them up, down, left, and right. If you can't move them in all directions your convergence chips are bad and should be replaced. This is a common problem. Solution #1 you need to replace the convergence chips and convergence resistors. Check the site www.TvRepairKits.com. They have put together a kit for most models. If you don't see kits for your set send them a quick note under the contact us button please, you will get an answer within 24 hours or so.(excluding holidays Good Luck, if the menu is not there replace the convergence chips also as a pico or so is blown do not replace any blown pico fuses without first replacing the convergence IC'(S)
Techman

Sep 03, 2009 | RCA D52W23 52" HDTV CRT TV

2 Answers

Zenith R57W46 57 in Rear Projection Television colors don't align


you will need to replace the convergence ICs and possibly the feed resistors. You can get the convergence repair kit at the following link and they send instructions that show how to replace the Convergence Ics. Heres the link look under the convergence repair kits category for your model.
http://servicemanuals.vstore.ca/

Feb 06, 2009 | Zenith R57W46 57" Rear Projection...

2 Answers

Now What???


I want to get this straight are you saying that you cant align them
and this is your focus problem or you have two problems that you cant get the convergence and the focus?

it might have been easier just to have the board replaced...
Samsung parts for convergance problem
http://www.partstore.com/Part/Samsung/Samsung/BP9500142E/New.aspx

Jan 28, 2008 | Samsung HC-P4752W 47" Rear Projection...

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