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Hi,
I have just recently purchased a used EXP-100F expression pedal for a reasonable price with the intent to use it in a future MIDI project. There was no information as to what the pin outs on this pedal were (DIN 8 pin) so I partially disassembled to investigate. I find the following connections identified on the internal IDC connector on the small PCB found within:
From the lack of components on the board (approx 1/2 dozen), I would guess that there is no MIDI encoding actually taking place at the expression pedal but rather a variable resistance (using an LDR) transmitted up to the keyboard internals, ditto with regard to a momentary switch on the pedal.
Does anyone have any further information on the connections and or how these things are encoded/decoded?
Thanking you all in advance.
Peter
I have just recently purchased a used EXP-100F expression pedal for a reasonable price with the intent to use it in a future MIDI project. There was no information as to what the pin outs on this pedal were (DIN 8 pin) so I partially disassembled to investigate. I find the following connections identified on the internal IDC connector on the small PCB found within:
| EXP-100F internal connectors (IDC Header) | ||||
| 1 | Brown | +15 vdc | ||
| 2 | Yellow | G | ||
| 3 | Red | G | ||
| 4 | White | Lamp | ||
| 5 | Grey | footswitch Grey | ||
| 6 | Blue | G | ||
| 7 | Green | Out | footswitch Black | |
| 8 | Black | -15 vdc | ||
Does anyone have any further information on the connections and or how these things are encoded/decoded?
Thanking you all in advance.
Peter