20 Most Recent Mitsubishi WS-55819 55" Rear Projection Television - Page 7 Questions & Answers

I suspect what you are describing is a convergence problem---when it acts up go into the customer menu and select convergence--then advanced--it will bring up a grid of lines---if red, or blue is skewed this is your problem.

I have repaired hundreds of these sets--this model uses two of the STK-392-570 convergence chips and I have seen many where the convergence comes and goes--what happens in these sets is not a soldering problem but the pins inside the chips come loose--Each chip has about 16 pins--I have had ones that when I removed the solder pins fell out of the chip.

The pair of chips can be bought on Ebay for about 12 dollars plus shipping (I know the best seller there) and if you or someone you know can do it you can save the set and a lot of money.

Most shops are going to charge at LEAST 300 for this repair--and some will not do it in your home--it can be easily done in the home and takes about 1 hour.


If you think you can do it yourself let me know and we will get the instructions to you.

If you have any questions or need help--let me know by replying to this solution. I am here to help people.

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

Thanks for using FIXYA!


Mitsubishi... | Answered on Nov 20, 2009

Did you do the self check this set should have? When you turn it on and it goes off-----On the front of the set press and hold both the MENU and INPUT OR DEVICE BUTTONS FOR AT LEAST 5 SECONDS AND THEN RELEASE BOTH BUTTONS.

The power light should blink a two digit error code--for example--two blinks, a pause, and two blinks---this is the most common error code and I can tell you exactly what is needed to fix it. I have fixed hundreds of these sets with the 2-2 error code=====98% of the time it is the same problem.

If you let me know what error code you find---I will tell you what it means and what you have to do----I hope you have the 2-2 error code.

Let me know what error code you find--it will repeat the code at least 5 times.

Thanks for using FIXYA


Mitsubishi... | Answered on Nov 19, 2009

I have step by step start to finish instructions for this repair if you want them.

You can use regular solder--the original is lead free, it does not matter.

If you want the instructions rate this solution with 4 thumbs and I will post the instructions for you.

they will tell you everything you need to do the repair and step by step start to finish instructions.


Mitsubishi... | Answered on Nov 09, 2009

WS-55819 uses two of the STK-392-570 convergence chips-----usually it is not a soldering problem--I have seen dozens of these sets that use this chip--some of the chips before they totally fail do this--convergence comes and goes--I have also seen several when I unsoldered them that the pins literally fell out of the chips--

I HAVE START TO FINISH, STEP BY STEP INSTRUCTIONS FOR THIS REPAIR IN THIS SET--if you can solder well and are handy--you can buy a pair of the chips on Ebay for less than 13 dollars plus shipping.

I cannot give you my email address but..........

I have also photos of a few things you need to look at if you do this repair----The instructions tell you how to do the repair and also tell you EVERYTHING you will need to do it.

If you have some idea of how I can get the instructions to you other than here let me know--

Take my word for it---if convergence is jumping in or out you need to replace both chips and the set will not have this problem again for 5-8 years--lifespan on these parts.

IF THIS information has helped you, rate this solution as I do this here for free.


Mitsubishi... | Answered on Nov 08, 2009

Did you replace the center board with the STK-392-570 chips or the Digital convergence board mounted on it?

98% of the time if you have a convergence problem it is on the center board---the small board on the left under the metal shield box stores and controls the convergence of this set.


I am here to help----I have fixed hundreds of Mitsubishi sets with convergence troubles.

Regards, SD TECH

Mitsubishi... | Answered on Nov 02, 2009

you have a convergence amp ic that has failed
you will need to repalce them and perahps a resistor or two and possibly a pico fuse
if you have the tools and soldering station and some know how you can change them your self or
you may want to recruit a local tech to assist you with this repair

Mitsubishi... | Answered on Oct 31, 2009

Most likely cold solder joint around the p.i.p module; remove the back cover and try moving lightly some of the circuits that are standing up(while the set is working)just be careful where you put your fingers,if that makes a difference you`ll need to remove those boards (plugins)and solder the terminals.Also the main board will have to be lifted and and soldered where the boards connect. good luck

Mitsubishi... | Answered on Oct 31, 2009

Sounds more like closed caption is on go into the menu and if it is on turn it off.

Mitsubishi... | Answered on Oct 23, 2009

...hmm, here is your user manual:


...and some of our guys found a service manual (not recommended) but
they attempted to save someone a few bucks.


Try emailing one of those guys, all I can do is recommend a local service center for you. Please don't 'mess with any high voltages' unless/until you find a qualified repair person.


Mitsubishi... | Answered on Oct 10, 2009

You set may be set to Home Theater mode.
I think it is in the advanced menu.
Set home theater to off. This will fix the input on the television to input one, no matter what you do.

I hope that this helps you.

Mitsubishi... | Answered on Oct 01, 2009

Try just pressing any channel, like 08 ect...If that doesn't work then go back into your menu and change the input that way.

Mitsubishi... | Answered on Oct 01, 2009

Sounds like the power switch has gone bad, Have a repairman look at it.

Don't try this yourself. There are components inside that tv that can kill you instantly if touched.

Mitsubishi... | Answered on Sep 30, 2009

um . that model doesn't have a reset button . but if no lights on front of the set even blink when you press the power button on the front or on the remote .then suspect front panel buttons ,with that model.

Mitsubishi... | Answered on Sep 29, 2009

This is a common problem that would require 2 Convergence output IC's to fix . The part # STK392-560 replace with STK 392-570. a repair shop would charge between $200-$300 (parts cost $60.00)

Mitsubishi... | Answered on Sep 26, 2009

If it is convergence and was soldered once--it will most likely need the convergence chips replaced--this model uses two STK-392-570 chips----even if bad soldering was the first problem based on the fact that the set is a 2001 model--should have just replaced the chips then as the amount of work to get at them to solder is the same as changing them--if the chips are replaced the set should be good for 5-8 years--not 3 years.

Let me know if you have questions or need advice.


Mitsubishi... | Answered on Sep 26, 2009

Vertical IC most likely needs resoldering or replacement

Mitsubishi... | Answered on Sep 11, 2009

it will probably be the power supply

so first you will need to check for obvious stuff like board fuse,switch,blown caps or dry joints

if looks ok then check the dc voltage on mains filter cap (only do this if you are experienced in electronics) if ok you will have to determine how the stage is not been driven google up the number on the drive chip and check if voltages are how the should be.

Mitsubishi... | Answered on Sep 03, 2009


Mitsubishi... | Answered on Aug 24, 2009

The would be due to a bad power supply a switch out would find you a working Tv again now the power unit can be reapaired but you might just want to save face here and get a new one the folks at www.partstore.com have been benefical to me in finding the parts for all my clients I am sure they will help you with your tv parts if you like to do a "do it yourself repair". Please do a review/rating on my solution here I do take time out of my busy day answering free questions it does not hurt me to do it but I look for good ratings, Thanks

Btw, I’m available to help over the phone in case u need at https://www.6ya.com/expert/edwy_1a56970cf1ea4620

Mitsubishi... | Answered on Aug 19, 2009

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