The Asr-10 Keyboard And The Kpc Simulator Board - ENSONIQ ASR-88 Service Manual

The ASR-10 Keyboard and the KPC Simulator Board

The Poly-Key -r~ Pressure Keyboard on the ASR-10 (and the KPC simulator board on the Rack) is a
complex module that contains its own computer and software. So, when necessary, you will be
swapping it out as a whole unit. Display information sent to and from the digital board is processed
through the keyboard/KPC simulator. What might appear to be a frozen display, therefore, could be a
bad keyboard/KPC simulator. For more troubleshooting hints, see Communications Path p. 10.
The 20-pin Ribbon Cable (Kevboard/K.PC
When reconnecting this cable to the digital board, make sure that the striped side is aligned with pin 1
and that the cable is not r&-pinned. If the cable & mis-pinned or installed backward, fuses F3 and F4
on the power supply board will blow. NOTE: If one fuse blows, the other will blow also; you must
replace both.
ASR-10 Foot Switch and Patch Select Inputs
Foot Switch Jack
A single pedal foot switch (like the SW-5) plugged into the Ft. S
When a dual foot switch (piano-type, like the SW-lo) is plugged into the Ft. S
always a Sustain pedal and the left pedal is programmable (OFF, FX MODSRC, SAMPL YES, or
To check to see what the left foot switch is set to, press Edit, then press System*MIDI
repeatedly until the display shows LEFT Ff SWITCH=OFF (default).
Although the foot switch jack is mounted on the digital jack board, the foot switch signals go to the
keyboard, where they are sensed by the keyboard microprocessor.
Patch Select Jack
A single pedal foot switch (like the SW-5) plugged into the Patch Select jack causes the ASR-10 to think
that the left patch select button is always down (X0). The single pedal acts as the right patch select
button (XX).
When a dual foot switch (piano-type, like the SW-lo) is plugged into the patch select jack, the right acts
as the right patch select button and the left pedal acts as the left patch select button.
ASR Service Manual
Simulator)
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Kevboard and Footswitch Inuuts
. jack is always a Sustain pedal.
. jack, the right pedal is
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