Question about Mitsubishi WT-42311 42" Rear Projection Television
Pretty easy to see them as they are marked with that number right on them.
They will be side by side and on a metal heat sink to keep them cool.
Posted on Dec 03, 2012
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Posted on Jan 02, 2017
SOURCE: blue converge
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
Look for a big heat sink (big piece of aluminum) right behind the back access panel. The brown pressboard that you need to take of to have access to the inside of the chassis. I think there is two STK chips for this tv. Older mits only had one. The STK chip is black, should be about 3" long with about 20 pins on it. It may have a metal clip covering the part number on the front.
Posted on Feb 19, 2011
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