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RP93s
PATCHWORK
MIDI CONTROLLED
AUDIO SWITCHER
RFX
Salt Lake City, UT
Thank you for your purchase of the RP93s Patchwork. This unit is designed as a MIDI
Controllable audio and signal switcher.
Please take a moment to read this Owner's Manual carefully. It will provide you with all
the information you need to operate this device properly.
SPECIFICATIONS
Jacks: 14; 1/4" phone TRS jacks
MIDI ports: 5-pin DIN IN and Through jacks
Display: 2-digit high efficiency red .56"
Phantom Power: +12 VDC on pins 1 and 3 of MIDI IN jack
MIDI signals recocnized: Program Change with MIDI Channel
Size: 17" x 1.75" x 6"
Power: 120 VAC 15 VA 50/60 Hz
RFX MIDI PHANTOM POWER
Inspired by an article in the December 1989 issue of Electronic Musician (by
Craig Anderton), we decided to emulate their MIDI phantom power model for RFX
equipment. MIDI receivers supply 12 VDC on pins 1 and 3, and transmitters
receive power on those same pins. Many MIDI devices can be modified to supply
power down the cable, but of course RFX makes no warranty to anyone as to the
applicability of this modification or any damage that might be done as a result
thereof. We supply this note for those adventurous people who may want to give
it a try.
Connect pin 1 to circuit ground, and pin 3 to +9 - +15 VDC of the receiving unit.
MIDI TEST MODE
The RP93s has the ability to display the MIDI information present at the MIDI IN
jack.
• To enter Test Mode, first make sure the RP93s power is off. Hold the UP and
DOWN buttons while switching the power on. Table 3 shows which MIDI com-
mands and their status.
TABLE 3 TEST MODE COMMANDS AND DISPLAY
LED
MIDI COMMAND
1st Display 2nd Display
Loop 1 Note Off Channel Number Note Number
Loop 2 Note On Channel Number
Note Number Key
Loop 3 Pressure Channel Number Note Number Control
Loop 4 Change Channel Number
Control Number Program
Switch 4 Change Channel Number
Program Number Channel
Switch 3 Pressure Channel Number Pressure Value
Switch 2 Pitch Wheel Channel Number Not Used
Switch 1
System Messge
SE or SC or RT Not Used
displayed.
• To enable the setting you have chosen, press the STORE button.
• To return to programming the Program Numbers, press the UP or DOWN buttons until
the Program Numbers are again displayed.
RESTORING DEFAULT SETTINGS
• To restore the factory presets, press and hold Switch 1 and Switch 2 simultaneously for
5 seconds. The display will show FP during the reset operation. The RP93s will remain in
Learn Mode after the default settings have been restored.
RETURNING TO OPERATING MODE
• To return to normal operation mode, press and hold the UP and DOWN buttons again
(same as entering Learn Mode) for 5 seconds. Note: Any settings that have not been
stored will be lost.
OWNERS MANUAL
SWITCH 1
SWITCH 2
SWITCH 3
SWITCH 4
INPUT
SEND 1
RETURN 1
SEND 2
RETURN 2
SEND 3
RETURN 3
SEND 4
RETURN 4
OUTPUT
ALL DOTTED
BOXES INDICATE
RELAYS