Korg PS Polyphonic Synthesizer PS-3100
Owners Manual

3. CAUTION ^

3-1. BEFORE TURNING ON THE POWER SWITCH,

CHECK that the voltage setting on the external power supply panel MATCHES the voltage used in your area.

3-2. CAUTIONARY MEASURES WHEN SETTING UP THE PATCH:

Never apply voltages higher than that for which the Input terminals are rated.

Every input terminal on the patch panel has built-in protection circuits which will operate if excess inputs are applied. However in order to maintain stable operation please observe the above caution in particular.

asterisk If you plan to use a control signal from this unit to control sonic external unit, make sure that the input impedance of the external unit is more than 10K ohms

asterisk In cases where you wish to apply an analog signal to a digital input terminal, as a rule it Is best to first connect the analog signal to the VP input and then connect the VP output to the digital input. For example, if you want to control the release function by means of the control wheel, you would set up the patch as shown in figure 51.

Furthermore if you use an analog voltage for switching a circuit with an input marked , the circuit will switch OFF at voltages above approximately "3V" and it will switch ON at voltages below "OV".

Figure 51

INPUT/OUTPUT IMPEDANCE OF PATCH PANEL:

Output impedance: Control wheel: 2.5kohms; All others: less than 1kohm
Input impedance: Analog inputs: more than 1Okohms; Digital inputs: less than 1kohm


3-3. CAUTION: WHEN USING THE 60P TERMINALS

Do not use the 60P terminals for connections with anything except KORG PS Series accessories. Feel free to make enquiries about the use of these terminals to our technical staff.

asterisk When connecting an external keyboard or external unit by means of 60P cord always turn off the power of both units before making the connection.



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