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  1. #10
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    I escange chip U8 vacum box , removed original , and rem removed diode D4 D6 , info in this post, or in forum , L..., integrate cirquit, enanced k line comunication,after blocked.

    remove in U12 where is Lm2903

    solder K line driver in empty U8 place not in U12!! :


    L9637d solder in U8


    have notice to file firmware , cf8051, unlock firmware ,thanks

  2. The Following User Says Thank You to PaoloDigital For This Useful Post:

    Col19 (16th January, 2020)

 

 

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