MOTM

>I'm currently building my 820 kit, and I've been planning a few mods 
>(basically the oakley 820 mods done on a perfboard since the PCBs are 
>no longer available).
>
>One thing I'm wondering about before I solder in the ICs - the bypass 
>jack seems designed for a foot switch, but it also looks like it'll 
>work with an external signal - if the signal is low, the lag is 
>enabled, if the signal is high, the lag is bypassed. Does it work 
>like that? There's 10K1 ohms of resistance between +V and the jack - 
>if I did hook up another module's output to the bypass jack, could it 
>hurt the other module?
>
>Basically I hacked together a method to use one of the unused CMOS 
>switches and a comparator to enable the bypass jack to work with no 
>problem with either a foot switch or an external voltage. Before I 
>solder the CMOS switch in though, I want to know if I should bend the 
>pins my mod would need out, or if I shouldn't bother since, for the
>reasons stated in the paragraph above, this mod might be unnecessary.
>

You don't need to change anything, it will work fine with an external 
voltage plugged into the BYPASS jack. It was designed that way, says 
so in the docs.