I was told that this problem occurs often and the culprit is usually a small board located above the convergence board i believe they called it the power supply for the convergence itself they told me to rebuild it it would cost me anywhere from 80 to 110 dollars to fix i got the tv for free and would like to do this as cheap as i can it would be great if i could just find a replacement board and do it that way any help wpould be greatly appeciated thanks
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Re: 3d convergence problem
Yes often the convergence anp is the culprit, But 9 out of 10 times its the convergence ICs themselves that go out. At 5.99 each its better to replace them first then if your amp is bad you will have the entire convergence system rebuilt. Where as if you replace the amp and its the convergence you could very well be out of alot of cash that really didnt need to be spent. I would change the ICs first thats alot cheaper.
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This is normally an easy fix. I've fixed several of these. When you get the back off of the set, there are 3 small square brown fuses located at the back left corner of the set, if looking at it from the back. They are located next to the right side of the flyback transformer( the large gray or black thing sticking up with the thick red wire coming out of the top). One of those fuses will be open and needs to be replaced, and the pins on the flyback transformer need to be resoldered on the bottom of the board. They will come loose and make the fuse blow. This will fix the problem 95% of the time on this set.
unfotunatly the itc222 has no convergence ics it uses a series of trsansiitors. the fact that u have some areas of the screen clear may mean you need a technician to do a service alignment. when you go into setup does the convergence crosshairs move up and down and side to side on both the blue and red? if they do their may not be a problem with the power board. ONe more thing if you replace this board you will still need a technician to do a service alighnment
the convergence is out
usually on the crts like this you have to replace 2 convergence ICs
usually numbered STK392-110 or -120 or -150 or -180 or somthing similar.
Sometimes the resistors in the same circuit are also blown and need to be replaced. I don't know what these are labeled on this tv.
It is a pretty simple fix for someone who can use a soldering iron.
After replacing the chips a full manual covergence is needed.
Convergence Power supply board. In the television above the cuircit boards there are two curcit boards that sort of hang above. the one on the right is the convergence amplifer board(has metal fin like heat sinks).. The one on the left is the convergence power board. Since you have options and no control, bowing picture. this would be my first choice. Now it still may have convergence amplier trouble. To get these boards you will have to get the entire model with suffix ext. it will be like d52w20...yx1 yx2 or something like that. in small leter on the model sticker on back l
most of the time the convergence ic's can be replaced in the home.they are usually the 2 large ic's on the left side board mounted to a large heat sink..the ic's will cost between 25 an 50 dollars each.. the job requires soldering skills so you might want to call around to find a tech to come and replace the..also are you sure you don't have a kp 48V65?