Question about Mitsubishi WS-65511 65" Rear Projection Television

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Blue converge unable to adjust. what is stk? and where is it located?

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Re: Blue converge unable to adjust. what is stk? and...

STK refers to a Sanyo style Ic, in this case your Tv takes a STK393-110 at board location Ic8c00 Mits p/n# 267p155010.
If you don't buy from MDEA make sure to get Sanyo originals from a trusted distributor like ACME Enterprises in Florida. If you're going to attempt this youself you'll also need a good soldering station (like a wes50), a DMM, some heat sink compound and alot of patience.
Use the DMM to test the value of the low ohm resistors that feed those amps. In this case, blue being bad, my guess is you'll find R8c21 & R8c22 (3.9 ohm 1 watt) changed in value or nearly wide open. But check all the 3.9 ohm resistors in that circuit.
The STK393-110 is a multi-layer / multi-pin Ic on a large aluminum heat sink. You'll want to have the patience of Job to extract and insert the new one. Bend the pins too badly and it can make the task ten times more difficult.
Don't hold the solder tip on these too long and don't be in a big hurry to solder them all in one sitting. Solder and couple and give it a few seconds to dissipate heat...
Hope this helps!

Posted on Nov 17, 2007

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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 but stationary.
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 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.
You can get a repair kit that includes all the parts from
They have put together a kit for the Hitachi TV sets.
The kit includes a photo instruction guide, original Sanyo STK chips, convergence resistors, etc.
Everything you need to fix it yourself. Its a fairly easy fix on the Hitachi sets.

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