Question about Toshiba 55H70 55" Rear Projection Television

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Ics upgrade what ics can I upgrade to from 392-110 without changing anything else???

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  • tmitchell508 Jun 03, 2009

    I`m down for the wrong tv--I have a hitachi51swx20b if that matters...

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  • Toshiba Master
  • 5,138 Answers

Up Grade to the 392-180s they are the Best! hold up Rating is 100%.

Posted on Jun 03, 2009

  • ladywinn
    ladywinn Jun 05, 2009

    If your STKs are 110s upgrade to the 180s,also replace 7 resistors in same circuit i will have to look them up in my mannel,will post them asap.

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I have red convergance problem.. This is the second time I have replaced all diodes and the stk chips. they dont have any 110 stk chips so i am using 150 stk chips. I replaced all diods and now RK 62...


Alot of techs recommend using the higher wattage ICs to replace the stock ones, which is never a good idea since the resistors get stressed. Upgrading to the STK394-160 IC is the only upgrade Hitachi recommends but then the values of the resistors need to be changed since the stock resistors will not work with the upgraded ICs

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1 Answer

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Mats Electronics has the STK ICs you need .
1-800-628-1118
STKs will have part number on them ,example STK392-110 go by number printed on them if they are 110s upgrade to 180s Better ICs.Let me know if their is anything else that you may need help with.

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1 Answer

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Convergence repair problems.


alot of people make the mistake of putting two STK392-150 Ics in the Hitachi , and most times it will not work unless you change all the convergence resistors.. If youre going to upgrade hitachi to anything other than the stock ICs, it is recomended by Hitachi to use the STK394-160 ICs but then you have to change the ratings on the resistors. You can get the upgrade kit for your hitachi at the following link.
http://servicemanuals.vstore.ca/

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1 Answer

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I you give me your complete STK number such as STK392-010 as an example I can tell you what you can upgrade to also it does not require any resistor change when you upgrade but send me your complete IC number that you have and I can tell you what to upgrade to thank you

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