Question about Samsung HCM4215W 42" Rear Projection Television

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Tv won't turn on

When the power button is pushed on either the tv or remote the red timer light next to the power button lights or flashes but the tv does not turn on.tried unplugging tv for over 24 hours to reset settings and same condition still occurred

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  • edward kenney Jul 22, 2007

    found the gonvergence board,unplugged the connectors,and the set came on.it was out of focus,but it came on.took the convergence board out and will replace the convergence ic's later this week when i can get the parts. it's not fixed yet,but thankyou very much for putting me on the right track.will let you know when it is finished.

  • kloor Jan 04, 2008

    I have an akai flat t.v w/built in dvd, the t.v. just shut off i tried unplugging it fir one hour and it still did not come on the red light is on but when i try to push the power button it does not come on t.v. is one year old

  • tmrockwood May 11, 2010

    Where is the convergence board located

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Your problem could be the Convergence board is loading down the power supplies and will not let the TV set come on, or the power/deflection board, part number AA94-08574A, or the STR type regulator IC, part number AA13-00105A. If you locate the convergence board, unplug the connectors, and see if the set will come on. if the set does come on, replace both of the STK convergence IC's at once. The part numbers for those IC's are STK392-40. You can get the original replacement IC's from MCM electronics for about 15 to 16 bucks a piece. Do not use the less expensive STK IC's as they are not the same. the replacement IC's should have the name of SANYO printed right on the face of the IC's. Good Luck

Posted on Jul 22, 2007

  • Larry  Dillon
    Larry Dillon Jul 23, 2007

    No rating?

  • Larry  Dillon
    Larry Dillon Jul 27, 2007

    I told you where to get the parts from.

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How do i locate a schematic of this tv? I probably know just enough to get me in trouble but i'm not in a position to hire someone to fix so it's either me or trash. I have the same problem but don't know which board is the convergence?? thanks

Posted on Jul 19, 2008

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Hey technman,
Thanks for the instructions. In my case the power did not come on after I unplugged the connectors on the convergence board. Do I need to replace both the power/deflection board and STR type regulator IC or just one of the two?
Thanks,
Gonzagarules

Posted on May 04, 2008

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