LIMITED WARRANTY

This product is warranted to the original consumer purchaser to be

free from defects in materials and workmanship under normal installation,
use and service for a period of one (1) year from the date of purchase as
shown on the purchaser’s receipt.
The obligation of Rolls Corporation under this warranty shall be
limited to repair or replacement (at our option), during the warranty period
of any part which proves defective in material or workmanship under
normal installation, use and service, provided the product is returned to
Rolls Corporation, TRANSPORTATION CHARGES PREPAID. Products
returned to us or to an authorized Service Center must be accompanied by
a copy of the purchase receipt. In the absence of such purchase receipt, the
RP93s
warranty period shall be one (1) year from the date of manufacture.
This warranty shall be invalid if the product is damaged as a result
PATCHWORK
of defacement, misuse, abuse, neglect, accident, destruction or alteration
of the serial number, improper electrical voltages or currents, repair,
MIDI CONTROLLED
alteration or maintenance by any person or party other than our own AUDIO SWITCHER
service facility or an authorized Service Center, or any use violative of
instructions furnished by us.
This one-year warranty is in lieu of all expressed warranties, FX LOOP FX LOOP FX LOOP FX LOOP SWITCH SWITCH SWITCH SWITCH
1 2 3 4 1 2 3 4
obligations or liabilities. ANY IMPLIED WARRANTIES, OBLIGA- STORE DOWN UP

TIONS, OR LIABILITIES, INCLUDING BUT NOT LIMITED TO THE

IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS
FOR A PARTICULAR PURPOSE, SHALL BE LIMITED IN DURATION
TO THE ONE YEAR DURATION OF THIS WRITTEN LIMITED
WARRANTY. Some states do not allow limitations on how long an
implied warranty lasts, so the above limitation may not apply to you. P ATCHWORK RP93

IN NO EVENT SHALL WE BE LIABLE FOR ANY SPECIAL,

INCIDENTAL OR CONSEQUENTIAL DAMAGES FOR BREACH OF
THIS OR ANY OTHER WARRANTY, EXPRESSED OR IMPLIED,
WHATSOEVER. Some states do not allow the exclusion or limitation of
special, incidental or consequential damages so the above limitation or
exclusion may not apply to you. This warranty gives you specific legal
rights, and you may also have other rights which vary from state to state.

RFX
Salt Lake City, UT
12/03
OWNERS MANUAL
Thank you for your purchase of the RP93s Patchwork. This unit is designed to RFX MIDI PHANTOM POWER
provide years of reliable service as a MIDI Controllable audio and signal switcher. Inspired by an article in the December 1989 issue of Electronic Musician (by
Please take a moment to read this Owner's Manual carefully. It will provide you Craig Anderton), we decided to emulate their MIDI phantom power model for RFX
with all the information you need to operate this device properly. 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
INTRODUCTION power down the cable, but of course RFX makes no warranty to anyone as to the
The RFX RP93s Patchwork is a MIDI control device that provides control of 4 applicability of this modification or any damage that might be done as a result
switch and a 4 stereo FX loop devices. Up to 128 control combinations can be thereof. We supply this note for those adventurous people who may want to give it
programmed into the RP93s and are retrieved through MIDI Program Change a try.
commands or button selection. The Program Change command that retrieves Connect pin 1 to circuit ground, and pin 3 to +9 - +15 VDC of the receiving unit.
programmed control information from the RP93s can also be selected for one or
all channels. The RP93s accepts MIDI program changes and sets 8 relays to any SCHEMATIC
pre-programmed configuration. It can be used to replace footswitches in amplifi-
ers, keyboards, etc. and can control "stomp boxes" or other non MIDI equipment
through the sends and returns of its effects loops.

FEATURES
• Control up to 8 switch functions with MIDI program changes
• Front panel and MIDI control of switch relays
• 128 MIDI patches in nonvolatile memory
• 4 stereo effects loops and 4 2500 Volt isolated relay switches
• Supplies MIDI phantom power for controller pedal

INSPECTON
1. Unpack and Inspect the RP93s package
If obvious physical damage is noticed, contact the carrier immediately to make a
damage claim. We suggest saving the shipping carton and packing materials for
safely transporting the unit in the future.
2. Please complete the Warranty Registration Card and return it to the factory.

TABLE OF CONTENTS
Introduction - - - - - 1
Inspection - - - - 1
Table of Contents - - - - 1
Description
Front Panel - - - - 2
Rear Panel - - - - 2
Specifications - - - - 2
Operation - - - - 3
Operating Mode, Device Connection - 3
Learn Mode - - - - 3
Enterning Learn Mode, Modifying Presets 4
Changing MIDI Channel - - - 4
Restoring Factory Presets, Return to OP Mode 4
MID Test Mode, Block Diagram - - 5
RFX Phantom Power, Schematic - - 6
Warranty - - - - Back Cover
1 6
MIDI TEST MODE DESCRIPTION
The RP93s has the ability to display the MIDI information present at the MIDI IN FRONT PANEL
jack.
• To enter Test Mode, first make sure the RP93s power is off. Hold the UP and
FX LOOP
1
FX LOOP FX LOOP
2 3
FX LOOP
4
SWITCH
1
SWITCH
2
SWITCH
3
SWITCH
4
STORE DOWN UP
P ATCHWORK RP93

DOWN buttons while switching the power on. Table 3 shows which MIDI com-
mands and their status. FX LOOP 1 - 4: When pressed and the LED is lit, the corresponding FX Loop
jacks are enabled. Used for programming presets.
TABLE 3 TEST MODE COMMANDS AND DISPLAY SWITCH 1 - 4: Identical function to that of the FX LOOP switches except that
LED MIDI COMMAND 1st Display 2nd Display these enable the Switch 1 - 4 jacks on the rear panel.
Loop 1 Note Off Channel Number Note Number STORE: Used to store presets when making changes in Learn Mode.
Loop 2 Note On Channel Number Note Number Key DOWN: Decrements presets, program numbers and MIDI channels.
Loop 3 Pressure Channel Number Note Number Control UP: Increments presets, program numbers and MIDI channels.
Loop 4 Change Channel Number Control Number Program LED Display: Shows the current program number, or the information to be dis-
Switch 4 Change Channel Number Program Number Channel played while in Learn Mode.
Switch 3 Pressure Channel Number Pressure Value Power Switch: Applies power to the RP93 when the unit is connected to an AC
Switch 2 Pitch Wheel Channel Number Not Used outlet.
Switch 1 System Messge SE or SC or RT Not Used
REAR PANEL
MIDI THRU FX LOOPS
MIDI IN
SWITCHES
BLOCK DIAGRAM MODEL RP93

SERIAL NUMBER
CAUTION
RISK OF ELECTRIC SHOCK
DO NOT OPEN
1 2 3 4 OUT RETURN 4 SEND 4 RETURN 3 SEND 3 RETURN 2 SEND 2 RETURN 1 SEND 1 IN

WARNING: DO NOT EXPOSE THIS EQUIPMENT TO RAIN

93- OR MOISTURE.

CAUTION: TO REDUCE THE RISK OF ELECTRIC SHOCK DO NOT

NOT REMOVE BACK. NO USER SERVICABLE PARTS INSIDE. REFER
SERVICING TO QUALIFIED SERVICE PERSONNEL.
120 VAC MADE IN U.S.A.
SEND 1 INPUT 50/60 Hz 15 VA RISQUE DE CHOC - NE PAS ENLEVER

MIDI IN: For connection to the device that is sending the MIDI information to the
RP93.
RETURN 1 MIDI THRU: This jack is used to directly pass the MIDI information that is present
SWITCH 1 SWITCH 3
at the MIDI IN jack.
SWITCHES 1 - 4: 1/4" jacks used to devices that require a "tip to sleeve" switch-
ing activation. The tip of the jack is alternately connected to the sleeve or open
SEND 2 depending on the status of the corresponding front panel switch.
OUT: 1/4" TRS jack containing the signal(s) from the IN and the four FX Loop
SWITCH 2 SWITCH 4 jacks.
RETURN 2 RETURN/SEND jacks 1 - 4: 1/4" TRS jacks used to send stereo signals from the
IN jacks out to signal processing devices, and return them back to the OUT jacks.
IN: 1/4" TRS jack for connection to the device with the signal to be processed in
the FX Loop jacks.
SEND 3
ALL DOTTED
BOXES INDICATE
RELAYS
SPECIFICATIONS
Jacks: 14; 1/4" phone TRS jacks
RETURN 3 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
SEND 4 Size: 17" x 1.75" x 6"
Power: 120/230 VAC 15 VA 50/60 Hz

RETURN 4
OUTPUT

5 2
OPERATION no MIDI data is processed by the RP93s but data will continue to pass to the MIDI
Operating Mode Through port.
The RP93s switch settings, once pre-programmed, are recalled via MIDI Program
Change information and are then shown on the front panel display. The Program MODIFYING PRESETS
Change information must be sent on a MIDI Channel that matches the Channel of • Pressing the UP and DOWN buttons will increment and decrement the display of
the RP93s. the Program Number. As in Operating Mode, changing the Program Number with
the UP and DOWN buttons will cause the stored switch and FX loop settings to be
• The factory setting for the MIDI Channel Number is "omni" or channels 1 - 16. engaged.
• The factory setting for all RP93s presets is all Switches and FX Loops OFF. • Pressing a switch or LOOP button will alternate the on or off state of the associ-
ated switch or FX loop port. Changing the state of a port in this way does not
• While in Programmed Operation mode, pressing the UP or DOWN button will affect the programmed setting for the displayed Program Number (until the
increment or decrement the display and the switch setting presets. Pressing and STORE button is pressed). The state of a switch or FX loop port is indicated by
holding the UP or DOWN button will cause the display to increment rapidly, but the the LEDs.
switch and FX loop settings will not change until the button is released. Pressing a • When the desired setting is shown on the LEDs, press STORE. This will save
SWITCH or LOOP button will alternate the on or off state of the associated switch the current setting of the switch and FX loop ports for the displayed Program
or FX loop port. Changing the state of a port in this way does not affect the Number. The display will blank momentarily during the storing operation.
programmed setting for the displayed Program Number.
CHANGING THE MIDI CHANNEL
The 8 front panel LEDs always show the current state of the switch and FX loop In order for a Program Change commant to affect the switch and FX loop settings,
ports. the proper MIDI channel must be set.

Program Numbers 100 - 128 will show a 00 - 28 along with a dot in the lower right • To set the MIDI Channel, enter Learn Mode. Press the DOWN button until 01 is
of the tens digit to indicate the 100s. There is no program number 0, and 1 - 9 are displayed, then press once more - an oF appres in the display. To set a specific
displayed as single digits. MIDI Channel, press the DOWN button until the desired channel is displayed. For
Omni mode, continue pressing the DOWN button until "on" is displayed, for all off
DEVICE CONNECTION mode, leave "oF" displayed.
The FX loops have an input, 4 sets of sends and returns and an output. These • To enable the setting you have chosen, press the STORE button.
may be used to control the presence of foot pedals, rack processors, other • To return to programming the Program Numbers, press the UP or DOWN
instruments, etc. in the signal path. These may also be used as a 4-way A/B box buttons until the Program Numbers are again displayed.
by connecting to the FX returns only and using the Main Out as the output.
Since the RP93s is passive in its signal path (all switching is done with relays), the RESTORING DEFAULT SETTINGS
signal may go either way. This means the RP93s may also send a single signal to • To restore the factory presets, press and hold Switch 1 and Switch 2 simulta-
up to 4 different amplifiers. neously for 5 seconds. The display will show FP during the reset operation. The
There is no change of interference or crosstalk because the switches are contact RP93s will remain in Learn Mode after the default settings have been restored.
closure between the tip and sleeve of the 1/4" connectors. There is no connection
between the different switches. RETURNING TO OPERATING MODE
• To return to normal operation mode, press and hold the UP and DOWN buttons
LEARN MODE again (same as entering Learn Mode) for 5 seconds. Note: Any settings that have
Changes to the Switch and FX Loop settings for each Program Number settings not been stored will be lost.
are all made and stored in Learn Mode. Setting the MIDI Channel, and utilizing the
RFX MIDI Test Mode are also done in Learn Mode.

ENTERING LEARN MODE

• The RP93 enters Learn Mode by pressing both UP and DOWN buttons simulta-
neously, and holding them down for approximately 5 seconds.
When in Learn Mode, the numeric desplay blinks. Please note that in Learn Mode,

3 4