Question about Philips Televison & Video
Sure, Stk392-180, I use them all the time instead of the 110 and 120. Was your convergence out and that prompted you to replace the Stk's? If you had a picture before ( but bad ) I would check for the 6.8ohm bias resistors. They must be on the money, if not, they will destroy your Stk's in a heart beat. They are all located right buy the Ic's all in a row. Don't forget to clean the heat sinks off then apply a bead of Heat Sink Compound across the middle of the Ic's before installing them. the resistors may not be the value I stated, so measure a few, that will tell you,
Posted on May 23, 2009
I have a very similar problem.on a Hitachi 50UX52B. I just pull the chassis to replace both Convergence Amps (STK 392-110) But am now on hold after reading your solutions.
I discussed this on Riddledtv.com under http://www.riddledtv.com/forums/red-convergence-hitachi-50ux52b-soldering-heat-sink-t1384,highlight,hitachi.html
and included a picture of the problem. I also have the service manual that I will be happy to share. I would really appreciate your input and comments.
Posted on May 25, 2009
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Posted on Jan 02, 2017
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