Question about Mitsubishi VS-50607 50" Rear Projection Television

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Mits m#vs-5007r convergence not inline

Replaced stk 4274 red now looks great but can not get the whole thing in line looks great in center i can adjust all over but some edges will not adjust off just a little tiny bit

Posted by Anonymous on

  • reggiegeek Jun 03, 2008

    i have double vision on the screen..

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If you cant adjust it in . you most likely have a resistor on the convergence board that is slightly off. There will be 10 or 12 resistors in a row near the stks measure them and if they are off more then .3ohms replace it good luck.


Thanks doctor video

Posted on Jun 01, 2008

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1 Answer

On my HD1080 Mitsubishi projection flat screen 55809 the picture is bowed on top and bottem and it look as if the projectors themselves are offset, but the picture is clearer as you come toward the center....


It could be one of two things: Either a bad solder joint or convergence IC failure.

Convergence IC failure is very common. The solution is to replace the STK chips, check fuses and the resistors next to the STK chips. Replace as necessary and re-align via the service menu. It is about a $300 repair at a tv service center. You will need the service manual if you decide to do this yourself.

Try This:
When you notice the symptons Use this simple test to verify.
Go to the users menu on the tv.
Look for the converge option probably under setup or video setting. Converge is short for convergence to align the red and blue colors to the green color.

If you cannot move the red either horizontal or vertical, then the STK chip has failed for red section.
If you cannot move the blue either horizontal or vertical, then the STK chip has failed for the blue section.

If you can move both in each direction then the problem is something else.


Note if one STK chip fails, you replace both regardless

Feb 20, 2011 | Mitsubishi WS-55809 55" Rear Projection...

1 Answer

I had a convergence problem on my Mitsubishi WS-65711 where the red and blue was bending outward from center giving a 3D effect. I replaced the STK pack and the red and blue look good now, but now the...


green is base line center and some times is not adjustable
.Did you replace both convergance chips?
also there are 6 , 2.2 ohm res that get out of
tolarance. check them first

Jun 30, 2009 | Mitsubishi WS-65511 65" Rear Projection...

2 Answers

Convergence lines are SLANTED. Red line is above


Your TV most likely 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.

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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.

Apr 26, 2009 | Hitachi 53FDX01B 53" Rear Projection...

1 Answer

CONVERGENCE WILL NOT ADJUST ON SIDES


First you need to read the supply voltages to the STK's. Black things, size of 2 match books on a big heatsink. Sounds like your supply voltage is low, could be a bad STICK STK. usyually stk 130-20 or 150, etc..

Mar 07, 2009 | RCA D52W20 52" Rear Projection HDTV-Ready...

1 Answer

Ok, so I Replaced stk-392-110 (2) and......


Check the resistors in the red convergence circuit right next to the Ics you will need to lift one side of the resistor out of circuit to acurately check them but usually one or two resistors will be opened when the ICs go out

May 17, 2008 | Panasonic PT-53TW53 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...

2 Answers

Hitachi 51SWX20B Convergence problem


Solution:

Your TV has a convergence problem. Here are some of the most common symptoms.

Screen looks 3D
One or more colors can't be adjusted when using the convergence menu.
Screen is bowed in or warped.

Here is a quick test....

Using your original remote go-to the tv settings then goto the convergence or magic focus section.

Try to adjust the 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.

Its a fairly easy fix on the Hitachi sets.

You can get a repair kit that includes all the parts from www.TvRepairKits.com. The kit includes a photo instruction guide, original Sanyo STK chips, convergence resistors, etc.
Everything you need to fix it yourself.

Jan 28, 2008 | Hitachi 51SWX20B 51" Rear Projection...

1 Answer

Convergence IC's


It does not sound like a convergence problem as you stated that all the lines match up and are ok??? You have space at the top and the bottom, as well as on both sides? Well my friend it sounds like you have a power regulator problem with the main power supply, because it sounds like the voltage is low and causeing the set to have a smaller then normal picture. Check the Main B+ first. I dont have a schematic but if you need, I know lots pof authorized pioneer peeps, and can getbwhat voltage and what part is most likly bad. We hardly repaired the boards as they(pioneer ) did not have most of the descrete parts and mostly had the boards themselfs to replace. You could also take out the B+ regulator board and have it rebuilt at PTS. They have a web addy of http://www.ptscorp.com Look them up and get their tele # and call them to see about the replacement cost. If they can't help go here Main support number800-421-1606. Good Luck

Jul 27, 2006 | Pioneer PRO-710HD 64" Rear Projection...

3 Answers

Convergence problem


We need a better description of what you mean by shadowing. However I am assuming: 1. You mean it ''bleeds'' off to the right when you have something with a hard red/blue drive. 2. When you turn the contrast and color down a bit it gets better. unfortunatly I cannot tell you how to fix convergence, but I can think of some other possibilities. In this case the red/blue emmision of the crt is dying off and going into saturation when driven hard. To fix, replace with a new picture tube/crt. In some cases you can get a little more life out of that tube (with a watchable picture) by having the screen, focus, cathode bias, and drives slightly readjusted. It will take someone with experience in doing these adjustments on a weak tube to get it looking as good as possible. Given the construction of the cathodes (guns) in that crt, only a very low level crt reactivate should be tried on it. The hard rejuv most crt testers give is highly likley to completely destroy the cathode on that crt.

Mar 22, 2006 | Toshiba 55H70 55" Rear Projection...

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