Quantum E240 User Manual page 12

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SENSITIVITY
The sensitivity of the keys has been tailored to match the supplied plastic panel. To make a key
more sensitive, increase the value of its corresponding Cs capacitor (see chart below). To make
it less sensitive, decrease it's Cs value. Only use 5% or 10% X7R ceramic capacitors; most other
types will be unstable and give erratic results.
Key # Cs Capacitor
1 C5
2 C6
3 C7
4 C8
C9 = Spread Spectrum Capacitor (see next page for details)
C5~C8 = Sample Capacitors (Cs) - increase to increase sensitivity
11
Factory Default
22nF
22nF
22nF
22nF