Need help convert LCD segment output to LED segment

Discussion in 'General Electronics Chat' started by metro10, Sep 17, 2010.

  1. metro10

    Thread Starter New Member

    Sep 17, 2010
    Hi there..

    anyone may can help me fix this.

    I have one stuff the LCD display damaged and cant be fit new one ,because no more in the market.. And now i have and idea to used 7 Segment LED connect to the MCU..

    Because it have signal from MCU S0-S32 and COM0-COM2 and NC connect direct to the LCD.

    the circuit used uPD7514 and have LCD segment driver inside MCU.

    Now i have removed the LCD and check the line inside of the LCD.. now i know the PIN where they come from MCU and go to LCD ( pin ) each pin.

    But how I can covert this signal from S0-S32 to the new 7segment LED ?
    Because i think if used connect direct from this out to 7segment LED it will not work ?

    Because i saw that " sample "
    the signal from ie S1 go to the pin of LCD through " symbol " the liquid line on display and go through to the com line and the circuit go back to MCU.

    I dont know will have some IC to convert OUTPUT from MCU to drive 7segment ? and how about com line ? because all com line will go back to the MCU.

    If i used small 7 segment connect direct it will work ?
    anyone can help me about this :confused: