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I was looking at SD Tech,s info on the code 22 problem and need the instructions and pics for the replacement of the two fuses (i tested them and they were bad). What shorts out to cause them to blow? I have a Mitsubishi WS-65807 it gives a code 22.. I was watching TV when the screen just turned off. When you turn the TV back on the green light comes on but goes back off. Thanks Kevin

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With that particular model the fuse blowing issue was usually caused by bad convergence IC's. 9 times out of 10 if we were repairing an Error Code 22, we would also have to replace the convergence IC's STK392-570.

There is a website that you might want to check out. We are not affiliated with them in any way, but it would make an easy one stop place for you to get all of the material you would need to take care of your error code 22 issue. Here is the link:

http://www.tvrepairkits.com/xcart/home.php?cat=2647

This link will take you to their site where they will sell you a kit which includes the convergence chips and resistors, the fuses, thermal paste, photo instruction manual, soldering instruction manual, and support for all of the above.

If you would prefer to you can download the service manual separately from any number of sites. Then you have to track down all of the parts, and so on. One very important note is this: There are lethal voltages and current inside your TV, and they must be dealt with accordingly! If you have never done this type of repair before I would suggest doing some research on the web regarding the securing of those voltages and currents in the TV. The service manual will normally show you the procedure in the first few pages. If you decide to go for the all in one kit, they will also describe and show the procedure. Make absolutely sure that you understand the procedure before you open up the TV. I have seen men shot across the room because they did not secure the power correctly.

Good luck with whichever way you decide to go and thank you for using our service.


Posted on Mar 20, 2011

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I am available as a paid question attention SD TECH and have start to finish step by step instructions for this repair in this model.

Instructions tell you everything you will need and exactly how to do the fix.

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Attn sd tech i have a code 2 2 how do i repair?


It means one of the two pico fuses for CONVERGENCE is blown.

I will attach photo of the fuses; they and the two convergence chips this set uses are on the middle circuit board--also a photo of a typical IC.

Parts cost on EBAY will be under 20 dollars.

Instructions tell you everything you will need and exactly how to do the repair.

Give me a email and I will send them free.

If this was helpful rate this solution as very helpful as I do this here for free.

SD TECH


6e5111f.jpg


f13ee0f.jpgChips will look like this but have the STK-392-570 ON THEM.

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Good afternoon, my Mitsubishi model 42413 turns on, then immediately back off back again. After testing with the menu and device buttons, I get a flashing 2 - 2 code indicating a fuse is blown. I opened...


2,2 means one of the pico fuses (see attached photo) that protects the convergence circuit is blown---This set uses 2 of the STK-394-250 convergence chips---you need to locate and replace the fuse and the chips---do not just replace fuse---it went for a reason, if just fuse replaced it will blow again and likely do other damage.


If this or the photo helped, rate this solution as very helpful as I do this here for free.

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d74f7d7.jpg

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My color convergence for my red is off on the bottom left and the top right of my screen this is probably a ics problem can i fix this myself and what would be the cost


LOOK at your other question about this, I did answer it.

Total parts cost will be under 30 dollars. I need to know if you can solder and if I tell you how to get at the chips replace them.

This set also has some resistors that protect the chips----easy to test and cheap to replace..


Confirm actual model number and I am prepared to give you specific instructions.

You can reply to this solution or if you repost the question: attention SD TECH.

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97% of the time it means one or more of the 2.2 ohm blue resistors around the two convergence IC's is OPEN.

There should be 8 or 10 of them: light blue in color and will have 2.2 printed on them ------look for any that are slightly discolored or white in the middle.

What happens here is if one opens====one of the two convergence chips got it----they can be tested in place like testing a fuse===no reading across any of them and it is gone-----set detects no voltage reaching the chips(Usually STK-392-110---black in color and on metal heat sinks with fins side by side.)

DO NOT JUST REPLACE THE RESISTOR IF YOU FIND ONE BAD=ONE OF THE CHIPS GOT IT.

I have start to finish, step by step instructions showing what is needed and the best way to replace the chips etc.

FIRST: LOOK TO SEE IF any OF THE RESISTORS ARE GONE. (BAD)

If you want the instructions let me know and I will post them here for you.

Regards, SD TECH


FYI= Whoever told you to replace the output transistor does clearly not know these sets very well as it will produce a 5 blink error code.



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If you really need help I am in California and will be online noon until 11 pm tomorrow- (Pacific time) if you really want help post a question in the Premium section here attention SD TECH and I will help you more.

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