Question about Mitsubishi VS-45607 45" Rear Projection Television

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Mitsubishi WT-46805 Convergence IC's I was wondering where i might find them to replace on the circuit board? I cannot seem to adjust convergence on the menu option. So I thought I might replace the IC's. Any help would be much appreciated !! Jerry

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Good Day, Bosjerry;

I believe the IC's are on the left of the TV, looking from back, the TV uses STK 392-040 (two) convergence IC's. They will be mounted on a large heat sink (large silver/metal) looking device.

Good Luck, big IRISH>

Posted on Aug 07, 2008

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Mitsubishi WT 46805 ~ Picture gone..... :0(


There are two and sometimes three very large IC’s that control the convergence in a big screen set. I think that you have two that are on the board in the center of the set. They are secured to a very large aluminum heat sink.

There are two ways to repair intermittent connections on the convergence IC’s. I usually remove the board with the convergence IC’s on them and then and solder the connections. The other method is to tilt the circuit board and solder them while still installed in the chassis.

If you remove the board and repair the connections, be careful to remember which connections need to be made when you replace the board. Mitsubishi uses a lettering system, so it should be easy.

If the problem remains after you have made the repair, it is possible that the pins on the IC’s have become loose. In this case the IC’s need to be replaced. I have seen this on several occasions.

If you choose to repair the set yourself, be very careful of the high voltage that can be stored in the capacitors, and CRT’s. This voltage can be as high as 30,000 volts.


I hope this information allows you to resolve this issue.
If I have helped you, please help me, and rate this suggestion the highest FixYa rating. (Two Thumbs Up) If you cant rate this post with the highest rating, then please comment to this post and I will try to help you further.

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Mitsubishi is famous for this. You are going to have to resolder the convergence ICs. Very simple repair if you are just a little tech savy. Do you know how to solder? This is a 99% fix. Take the back cover off (unplug first). You will see a big heatsink on the board (6-8 inchs long) attached to this are 2 convergence ICs. Unscrew the board, flip it over and resolder all the pins to those 2 chips. Done

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Mitsubishi WT 46805 ~ Picture gone..... :0(


Good Day, Corri;

It sounds like the TV has a Circuit problem in the convergence circuit. If it comes and goes then the concern can be corrected by re-soldering the 'conv' output IC"s. A semi-minor repair and cost.

Good Luck, big IRISH.

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