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Fisher F2 mods

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  • Fisher F2 mods

    Ive just opened up my F2 ( cos its gone crazy !) and noticed its got F4 on the pcb so im now wondering if theres a mod to enable the F4 features. .( possibly add an IC ) as i noticed an empty space on the board.( top left of pic ) . . . . . could be a real cheap F4

    many thanks
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  • #2
    You haven't noticed the LCD is different, the PIC microcontroller is different/programmed differently, and the search coil is different. You can't even simply fit a pot in the vacant place, because the membrane keypad has tracks running over the pot fitting hole area.
    Changing the searchcoil is worth considering, there's a choice of 4 inch and 10 inch concentric's, and the DD of the F4. But make sure you get the right connector, there's two types, 240 degree DIN, and the 'CB microphone' screw-together type.
    The 'empty space' is the in-circuit serial programming port for the micro.

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    • #3
      F 2

      thanks for info

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