[Diy_efi] WB LED Display dimmer

[frederic]

> Is there a simple modification that would allow me to add a dimmer to the
> LED's?  That display is great but sometimes could use a dimmer.  I haven't
> had a chance to pull the data sheets on the chips involved.

the display drivers (LM3914) each have a resistor that determines LED 
current.  Increase this value, the LEDs receive less current.  

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