Question about Mitsubishi VS-70705 70" Rear Projection Television

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I have a Mitsubishi VS-70803 set that is having a color mis-convergence problem. I tried to adjust it but the Blue lens adjusts left and right but not up and down. Is this a expensive fix.

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6 Suggested Answers

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Posted on Jan 02, 2017

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MikeNJ1964
  • 398 Answers

SOURCE: Mitsubishi VS 4552A

One of your convergence IC's has either cracked loose or burned out. The IC will have to be resoldered or replaced and then the convergence circuits realigned. If you do not have experience in repairing convergence circuits then have a qualified tech handle it for you. This is by far the most common failure in the projection sets and a good tech can have it fixed in about an hour and a half. I charge $150 for that but shops in your area will vary, so call around.

Posted on Jul 31, 2007

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Slinteriors
  • 8617 Answers

SOURCE: Mitsubishi big screen model VS 60601 convergence adjustment

you need new convergence ICs. If you can respond to this same post and verify the model number of your mitsubishi, I wll post the correct ICs that your model needs.

Posted on Aug 17, 2008

doin12volt
  • 233 Answers

SOURCE: Mitsubishi VS-50705 Red convergence off, vertical not adjustable

Your screen has gone crazy on you because your convergence IC's have gone bad.   These IC's operate at a very high temp, and usually only last 4-5 years.  
If you remove the back of the set, you will want to look for the BIGGEST heatsink in there, on that heatsink, you will see 2 lage IC's , probably STK392-110, or STK392-150's or something close...regardless - you can go on ebay to order the new ones, but MAKE SURE they are Genuine SANYO IC's and not counterfiet cheapies. the cheap ones may only last 2 months.. 
You will also need some "Heat transfer paste" - you can pick this up at radio shack.   Once you remove the old IC's, test all the large resistors near them.. pull one side of the resistor out of the board so you can check it out of circuit. they will usually have the value in Ohms, printed directly on the resistor, but you may have to use the resistor color code to find out what value they are....However, usually if there is any damage, the resistor will look like it has been HOT or fried. replace the IC's and any bad resistors, and you should be good to go.   If after replacing the IC's and any defective resistors, the convergence is still bad, make sure to use a multimeter to check ALL fuses on the boards, --- sometimes when the IC's go, they will take out a fuse to the convergence power supply. If you find any bad fuses, replace them accordingly!   If this STILL doesnt make it look right, you will need to find out how to get into service mode and do a coarse convergence adjustment. This information can be found in the Service manual for your set. If you dont have one you can download it at servicemanuals.net   Hope that helps!

Posted on Jan 01, 2009

SD Tech
  • 14553 Answers

SOURCE: Mitsubishi medallion VS-60719 with convergence

Yes, this model uses a single STK-393-110---IT IS A 2001 MODEL.

If I remember it correctly the IC will be on a huge metal heat sink on the far left side of the set (as you look from the back) there is also a small IC on the same heat sink.

Not the most easy set to do this repair on and if you have a problem with the blue--it may not be the chip.

I have seen 3 or 4 of these where the problem was broken connections on a 10 or 12 pin plug at the left front of the board----

The way someone would pursue this is get the entire chassis up so the bottom of all the boards faces the back of the set--The plug goes to the convergence yokes this set uses---I have seen several where several of the pins had broken loose from the circuit board--normal with expansion etc.

If I was repairing it I would look at the plugs in that front left area FIRST! The last one I fixed had bad connections on TWO plugs---with the board up they will be clearly cracked or ringed--broken loose--if the set for some time would be good and then go bad it is most likely a solder problem.

Resoldering is much easier than replacing that chip!
if it is not resoldering the Chip can be purchased on Ebay for about 14 dollars plus shipping.

If you have someone come out tell them what you know---The plugs (as you look from the back) are up front and towards the left side

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


If you have questions or need advice let me know--I am here to help people.

SD TECH

Posted on Nov 11, 2009

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

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1 Answer

I have mitsubishi vs-50800 i was watching a movie and the screen just all of a sudden went blury and the color is all mixed up i went to the convergence menu and it wont allow me to move the colors left or...


All projection TV sets have two very common problems. One is convergence ( 3D/Warped video or dead set) the other is CRT fluid ( Dull Video). Here are more details and solutions for both.

Common Problem #1) Convergence has gone out

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

This is a very common failure on these projection sets and a fairly simple DIY fix. All projection sets including Samsung, RCA, Sony, Philip Magnavox, Panasonic, Pioneer, Akai, GE, JVC, Toshiba, and others at some point will have the same problem.

Common Symptoms include....


  • 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.
  • TV shuts off after powering on. Power light will blink. TV may also make a chirping noise.
Here are some pics of convergence problems.


7859b01.jpg

e87380c.jpg

Common Problem #2) CRT Fluid is Cloudy

Projection TV tubes have a liquid coolant that is used to keep them from overheating. After many years the coolant in the blue and green tubes will become cloudy and cause the screen to look dull, red/orange, etc. You may even see halos around images.

Picture of a set that needs the fluid changed.

578ba6c.jpg
TV set after fluid change

65af323.jpg

69189a5.pngSOLUTION

You can get the correct parts, step by step photo instruction guides, and support from www.TvRepairKits.com or click here

May 03, 2011 | Mitsubishi VS-50800 50" Rear Projection...

1 Answer

Left convergence on mitsu vs-60609


Convergence IC's inside of your TV are nearing end of the life. If during adjustments that you made Red and Blue was moving in all directions (left, right, down, up) than resistors and fuses still probably OK. IC's (part number will start with "STK" and they attached to huge aluminum radiators) have to be replaced and fresh heat sink compound have to be applied.
After that convergence adjustments should not be a problem. And color will stay together for another several years.
regards.
Russ.

Apr 04, 2010 | Mitsubishi VS-60609 60" Rear Projection...

1 Answer

PICTURE HAS BLUE AND YELLOW SHADOWS AND cc is in yellow not white vs 50609


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

This is a very common failure on these projection sets and a fairly simple DIY fix. All projeciton sets including Samsung, RCA, Sony, Philip Magnavox, Panasonic, Pioneer, Akai, GE, JVC, Toshiba, and others at some point will have the same problem.

Common Symptoms include....
  • 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.
  • TV shuts off after powering on. Power light will blink. TV may also make a chirping noise.
Here are some photos of convergence problems.

42d3683.jpg

7859b01.jpg

e87380c.jpg
Here is a quick test....

Using your original remote go-to the settings menu then goto the convergence section.

Try to adjust the red and then the blue convergence.

You should be able to move RED and BLUE in all directions - up, down, left, and right. And you should be able to get the grid straight.

If you can't move them in all directions or cant move them far enough your convergence chips are bad and should be replaced. This is a common problem.

Note: If you TV has as flash focus or magic focus button only try pressing the button. If it fails to fix the convergence your need to fix it. See below for a fix

69189a5.pngCONVERGENCE SOLUTION

You will need to replace the convergence chips and possibly some convergence resistors and pico fuses.
This is a a fairly easy DIY job if you are handy and can follow directions. You can get complete repair kits from TvRepairKits.com or click here. They have put together DIY repair kits that include the OEM parts and step by step photo instructions for each repair. If you are not handy or can't follow directions we would suggest calling a shop.

Mar 11, 2010 | Mitsubishi VS-50605 50" Rear Projection...

1 Answer

My RED Convergence is OFF and giving me a RED Blurr. When I try to adjust it manually with my remote, the RED doesnt respond, only the BLUE responds. Does anyone know how to fix this issue? Is it WORTH...


Your TV may have a convergence failure. ( common problem )

Here are some of the most common symptoms and example photos of a convergence problem



  • 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 are some photos of convergence problems.

3dc9420.jpg
645fba6.jpg
0dcec37.jpg
Here is a quick test....

Using your original remote go-to the tv settings then goto 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.

0667c5f.png

You will need to replace the convergence chips and possibly some convergence resistors and pico fuses. Its a fairly easy DIY job or you can call in a pro. If you want to do the repair yourself check the site www.TvRepairKits.com. Their kits include a photo instruction guide, original OEM Sanyo STK chips, convergence resistors, pico fuses, thermal paste, email/phone support, etc.

Jul 19, 2009 | Mitsubishi VS-60609 60" Rear Projection...

1 Answer

Blue convergence is shifted right slightly


CHECK FOR THE SUFECE MOUNT CAPACITORS AT THE SMALL CONVERGENCE CIRCUIT BOARD

Jul 13, 2009 | Mitsubishi VS-60609 60" Rear Projection...

2 Answers

My mitsubishi vs-60705 has very poor picture clarity. It can be described as hazy and the color is weak.


It may be a convergence problem...but not sure based on your description.

Here are some of the most common symptoms and example photos of a convergence problem


  • 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 are some photos of convergence problems.

3dc9420.jpg
645fba6.jpg
0dcec37.jpg
Here is a quick test....

Using your original remote go-to the tv settings then goto 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.

0667c5f.pngSOLUTION

You will need to replace the convergence chips and possibly some convergence resistors and pico fuses. Its a fairly easy DIY job or you can call in a pro. If you want to do the repair yourself check the site www.TvRepairKits.com. Their kits include a photo instruction guide, original OEM Sanyo STK chips, convergence resistors, pico fuses, thermal paste, email/phone support, etc.

Jun 20, 2009 | Mitsubishi VS-60705 60" Rear Projection...

2 Answers

Convergence Problem


Unfortunately you will have to replace the convergence board in this unit. it has failed. this particular board regulates the alignment procedure that you are having issues with. replacing this board will fix this issue.

May 21, 2009 | Mitsubishi VS-5047 50" Rear Projection...

1 Answer

Color convergence


The convergence IC's will need to be replaced along with possible resistors and/or fuses.

Dec 17, 2008 | Mitsubishi VS-45607 45" Rear Projection...

3 Answers

No color adjustment


51f500_51_in_rear_projection_hdtv_190581.jpg

Problem with Hitachi 51F500 51 in. Rear Projection HDTV-Ready Television
i want to learn how to do convergence on my tv its a hitachi rear projection i have problums with colors not aligning,could you lead me in the right direction ps: i don't have the remote so i

can't magic focus

Posted by avatar13.jpgejaparks on Mar 03, 2011

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Solutions (1)

Your convergence has failed and needs to be repaired. Once quick test is to goto your convergence menu and see if you can adjust red and blue. If not its has failed and needs to be fixed. You can call in a repair shop or you can get the parts and instructions from www.TvRepairKits.com and do the repair yourself. Its a fairly easy DIY fix.
Here is an example photo.... louis66_0.jpg

Jul 04, 2008 | Philips Magnavox 9P6034C 60" Rear...

1 Answer

Colors not right


If "colors are not right" means red,green or blue separation =
convergence mis-alignment. That repair requires replacement
of the convergence IC's, a PCB overhaul.Above average tech
ability required...............Do you want step-by- step how to.....?

Nov 17, 2007 | Mitsubishi VS-60111 60" Rear Projection...

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