hello,
i'm curious about this modification.
where did you find info about it
i did a similar mod on a RZ1 but i'd be interested to do it to a 707.
best
K


Le lundi 25 février 2013, swekompatibel < swekompatibel@... > a écrit  :

>  
>
> Hello!
>
> I have made the custom rom mod to my Roland TR-707 and now i want to use a 27C4001 EPROM and switch banks with a DIP-switch.
>
> Please would you help me, Adress A16 A17 A18 goes separeted to the DIP switch, but what should i connect the other side of the DIP-switch, Ground A15 .
>
> And how should i program the chip, switch banks with the DIP and program 8 times with 8 separated rom binaries no
>
> Kind regards and thaks in advance!
>
> Johan
>
>

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