Electronic equipment repair and service manual search discussion :: Topic review - Hitachi 50EX11BV green & red color lines make blurry pic

Rudyjojo · Posted: Tue May 01, 2007 8:37 pm Post subject: what are the right STK's

Found 3, STK-4274, they were replaced about a year ago. Should I replace them with the same ones or use the STK 392-150 like you sugested. Being that they were replaced once before I don't know which ones are the right ones for this model. Do you have a way of looking that up, I would appreaciate it. (Hitachi 50EX11BV)

minnie · Posted: Sat Feb 24, 2007 11:47 pm Post subject:

Should be 2, they solder in.

rudyjojo

Thanks for the reply, are there three of these Stk392-150s or does one replace the 3 IC2003191's and are they soldered in or does it plug into a block.

minnie · Posted: Sat Feb 17, 2007 12:55 am Post subject:

They should be the STK392-150's. They control the convergence. Yes replacing them and any burnt bias resistors should fix it.

rudyjojo

A friend of mine has a Hitachi 50EXiiBV Projection TV, he says that the red and green colors are seperating making the picture blurry.
A year or so ago a repairman came in for the same thing and replaced 3 parts with the same part# IC2003191 (IC1301.IC1351).
will replacing these agian take care of the problem or were they relaced for somthing else and he was able to make an internal adjustment to rectify this problem.
What do these do and are they relativly easy to replace.