Question about Samsung PCH521R 52" Rear Projection Television

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Hello, After I've changed the stk's on a rear projection SAMSUNG TANTUS 42" it worked fine for a couple of weeks, then started to had a convergence issue during the first 1 or two minutes after turned on. Now it simply won't turn on jus makes a constant funny noise. It could be a wrong stk's model? thanks

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  • lintsui_r Jan 06, 2011

    Thanx curtis, I´am not familiar with tv´s and to be honest I don´t know what do you mean with "the lamp" I can do a little more research but I still appreciate your guiding here.

    Best Regards and thank you very much.

  • lintsui_r Jan 14, 2011

    well, the new STK´s i´ve just installed are 392-040. I will check those resistors then the stk´s.



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That noise is the lamp trying to turn on but it is probally burnt out so you may need to replace the lamp.

Posted on Jan 03, 2011

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You could have STK IC that is defective causing problem, Set will shut down if you have Bad IC.
Mats Electronics is who I order my ICs from 1-800-628-1118

Posted on Jan 06, 2011

  • ladywinn
    ladywinn Jan 14, 2011

    STK ICs you need to go by the number on old STKs 392-020?
    Also there is 2 resistors that need to be replaced they will be bad,located in front of ICs 2.7ohms or 3.9ohms

  • ladywinn
    ladywinn Jan 15, 2011

    This Model does not have a Lamp , it is projection that has 3 Tubes Red/Green/Blue.
    You have installed the correct ICs, So Where are you at Now? I have 3 pages of problems and solutions for the Fix in my Index Manual.



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