Bachmann RPT114 User manual

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SHOCK OR INJURY TO PERSONS
1. Read all the instructions (Safety, Installation and FCC if applicable) before using the product.
2. Donotusethisproduct near water(example,nearaswimmingpool,spa, tub, sinkorwetbasement)anddo not exposetorain.
3. This product should be used only with a cart or stand that is recommended by the manufacturer, or should be used with
thecomponentssupplied. Ifthisproductrequiresassemblybeforebeingplayed,takespecialcareto followtheassembly
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4. This product, whether alone or in combination with an amplifier and headphones or speakers, may be capable of
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OWNER’S MANUAL English

The information in this publication has been carefully prepared and checked. The
manufacturers however decline all liability for eventual errors. All rights are reserved.
Thispublicationmaynotbecopied,photocopiedorreproducedinpartorinwholewithout
prior written consent from ARCA S.A. ARCA reserves the right to apply any aesthetic,
designorfunctionmodificationsitconsidersnecessarytoanyofitsproductswithoutprior
notice. ARCA declines all liability for damage to property or persons resulting from
improper use of the instrument.
ARCA S.A. © 1997. All rights reserved.

23
Contents
Introduction 1
RPT 114 Module Control panel 2
Rear panel 2
The RPT114 Functions 3
Playing the RPT114 4
Power up 4
Play on the keyboard 4
Listen to the Demonstration 7
Touch sensitivity 8
Activate the Touch function and
select the SOFT or HARD velocity curve 8
To set the NORMAL response in a single step 8
Digital Effects 9
Activate the Reverb or Effects function and
assign a different effect 9
Transpose 11
To cancel the transposition 11
Tune 12
To reset the tuning 12
MIDI 13
Selecting the MIDI channel
(reception/transmission) 13
Resetting to the default MIDI channel 13
Some general information on MIDI 14
The MIDI ports 14
MIDI channels 14
MIDI messages transmitted and
received by RPT114 14
Note and Velocity data 14
Program Change numbers 14
Control Change numbers 15
MIDI Applications 15
As a MIDI controlling device 15
As a Slave device 15
Midi Sequencer recording 16
Reference section ..............................................17
Technical specifications 19
Technology 20
Natural string resonance 20
Damper physical model 20
Index 21
Appendix
MIDI Implementation chart A. 3
RPT114 Sound table A. 4

24

1
Introduction
Thanks for purchasing Bachmann’s RPT114, the latest creation in Digital
Pianos; a mechanical/digital hybrid which unites the best of advanced
electronic technology with traditional high quality craftsmanship for the
instrument’s mechanical parts. The keyboard features a traditional high
quality mechanism as used in acoustic vertical pianos, but excluding the
hammers,tomaintainthesame acoustic piano“feel”. Asophisicatedcontact
system based on optical sensors permits communication between the instru-
ment’s mechanical parts and the innovative digital electronic unit, a small
module located under the keyboard. The RPT114 command module layout
consistsofasetof indispensable controlstoplacethisinstrumenthighamong
the most easiest to use electronic digital pianos.
Withits 64note polyphony and88 noteweighted, Hammer Actionkeyboard,
RPT114 is the modern, economical answer to all home piano playing.
The RPT114 is very easy to use, but to make the most of the instrument’s
features, you are recommended to consult this manual whenever you are not
sure what to do.
Most important, of course, is how you treat your RPT114. Please take time
toreadtheGeneralSafetyInstructionstoguaranteealongandtroublefreeuse
of your instrument.

2
1. POWER SWITCH Press to turn the instrument on and off.
2. HEADPHONES Two Headphone jacks to connect headphones.
3. MIDI INTERFACE MIDI IN and OUT ports for MIDI connections.
4. VOLUME Control knob to regulate the general volume of the instrument.
5. DATA –/+ Data selection buttons to change the parameter status of the currently selected function.
The functions are selected with the keys of the last octave on the extreme right of the
keyboard.
6. OPERATIONAL LED Shows when RPT114 is on or off.
Rear panel
RPT 114 Module Control panel
54
2
136
7
7. PEDAL SOCKET Connect the cable from the pedal assembly (Soft, Sostenuto, Damper) to this socket.

3
The RPT114 Functions
TheRPT114features8functionswhichdeterminehowtheinstrumentworks.
The functions are activated by holding down the corresponding white notes
of the highest octave on the right of the keyboard. The parameters of the
selected function are changed the DATA +/– buttons while still holding the
corresponding function note.
The functions and corresponding note of the last octave include:
C7 (SOUNDS) : to select the sounds;
D7 (REVERB) : to select the reverb effects;
E7 (EFFECTS) : to select the effects;
E7 (EFFECTS) : to change the keyboard’s touch sensitivity (re-
sponse to changes in the key-strike velocity);
G7 (TRANSPOSE) : to change the instrument’s overall pitch;
A7 (TUNE) : to fine tune the instrument;
B7 (MIDI) : to set the instrument for MIDI setups;
C8 (DEMO) : to listen to the demonstration.
Owing to the fact that there is no display to show the current status of the
instrument, it is very easy to set the instrument correctly before playing.
Simply hold down the corresponding function note and press the Data + or –
button to set the required function.
The pages which follow describe each function in detail.
Demo
Midi
Tune
Transpose
Touch
Effects
Reverb
Sound
C7 D7 E7 F7 G7 A7 B7 C8

4
Playing the RPT114
Power up
1. Insert the power cord into an appropriate wall outlet.
Make sure that the mains supply matches the voltage indicated on the
instrument’s identification tag.
2. Press the POWER switch to turn on the instrument.
The operational LED turns on to show that the instrument is on.
LED ON
3. Regulate the Volume.
Use the VOLUME control knob to adjust the overall volume level.
Note:NosoundwillbeheardwhentheVOLUMEcontrolissettotheMIN
position (all the the left).
Play on the keyboard
Everytimeyoupoweruptheinstrument,itsetswiththeConcertGrand
Sound ready to play across the entire keyboard.
Ifsomeone elsehas usedthe instrumentbefore you,it maynot playthe
ConcertGrandsound. Owingtothefactthatthereisnodisplaytoshow
thecurrentstatusoftheinstrument,thesimplestwaytosettheRPT114
correctly is to turn it off then on again, or reset to the Concert Grand
sound as described afterwards.

5
4. Listen to all the RPT114 sounds.
The RPT114 has 8 Sounds that can be selected by pressing the Data +
or–buttonwhileholdingdownnoteC7(Soundsfunction). Eachtime
youpressaDATAbuttonwithnoteC7pressed,youwillhearthesound
change.
The Sounds available are:
Concert Grand; Rhodex; FM Piano; Harpsichord;
Strings; Pop Organ; Jazz Organ; Pipe Organ.
Each newly selected Sound cancels the previous one.
When you reach the last Sound in the list (Pipe Organ), press note C7
and press the DATA – button to select the Sounds in reverse order.
Only one sound at a time can be played on the keyboard.
Note: If you press the DATA buttons when a function note is not
pressed, no change will take place. The DATA buttons are active for
change only when a function note is held pressed.
Concert Grand;
Rhodex;
FM Piano;
Harpsichord;
Strings;
Pop Organ;
Jazz Organ;
Pipe Organ.
NoteonthePolyphony: TheSoundyouare
playing has a maximum polyphony of 64
notes[meaningthatyoucanplay64notesat
the same time].
Soft Sostenuto Damper
Important: Before using the pedals, make
sure that the pedal cable is correctly in-
serted in the appropriate PEDAL socket at
the back of the instrument’s module.
5. Play using the pedals
TheRPT114 is fitted with three pedals:Soft, Sostenutoand Damper.
SOFT: The Soft pedal (left) affects the timbre of the sound such that it
plays softer, allowing you to continue using the same playing style at
a lower volume.
SOSTENUTO:theSostenuto pedal(centre) sustainsthenotes ofthe keys
currently pressed. All new notes played after having depressed the
pedal will not be affected.
• You can hold Organ, Choir and Strings sounds for as long as the
Sostenuto pedal is depressed.
DAMPER: The Damper pedal applies the Sustain effect to all notes
played. Ifyou release anote after depressingtheDamper, thenotewill
proceedtowardsitsnaturaldecayaccordingtothetypeofsoundplayed.
The Damper is particularly effective with Piano type sounds. In the
case of Organ and Strings sounds, the notes will be held for as long as
the Damper is depressed.
Note:forallpianotypesounds,thenotes of the uppermost keys(fromE6
to C8) are automatically sustained, such as in an acoustic piano.
T
Effects
Reverb
Sound
C7 D7 E7

6
6. Toplayinsilence,plugasetofstereoheadphonesinto
the left Headphones jack.
Inserting the heaphones plug into the left HEADPHONES jack ex-
cludestheinternalspeakerstoallowyoutoplayintotalsilencewithout
disturbing others in the same room.
Plugging into the right jack does not exclude the internal speakers.
Use the VOLUME control knob to adjust the headphone volume.
T
Effects
Reverb
Sound
C7 D7 E7
7. Return to the Concert Grand sound in a single step
(Reset).
Hold down note C7 (SOUNDS function) and press both DATA + and
–buttons at the same time.
The Grand Piano Sound is recalled.

7
Listen to the Demonstration
Before getting more acquainted with your RPT114, try listening to the
demonstration song - a permanently resident demo which gives you a good
idea of what the RPT114 can do.
The demo song is a medley of several different pieces, specially created to
demonstrate the instrument’s sounds.
1. Press and hold the note C8 (DEMO function).
2. With C8 pressed, press the DATA + button to start the
demonstration.
The demo song starts to play automatically.
Whenit reachesthe end, itrepeats fromthe beginning andcontinues to
repeat until stopped.
Demo
Midi
u
ne
e
A
7B7C8
Demo
Midi
u
ne
e
A
7B7C8
3. To stop the demonstration.
HolddownthenoteC8(Demofunction)andpresstheDATA–button.
The demo song stops instantly.

8
Touch sensitivity
If the keyboard of your RPT114 is too “hard” or “soft”, you may want to
modify the touch sensitivity. Your RPT114 has a touch sensitive keyboard;
inother words,the keyboardbehaves just as in a traditional piano - the harder
you play the louder the sound.
You can choose from three different velocity curves.
SOFT, NORMAL, HARD
The default status of the instrument corresponds to the NORMAL setting.
Activate the Touch function and select the
SOFT or HARD velocity curve
• Press and hold the note F7 (TOUCH function) then
press the DATA + button.
TheinstrumentautomaticallyplaysareferencenoteCwithanintensity
correspondingtothecurrentvelocitysetting. In thiscase,youwillhear
thenoteCplaywithamediumintensity,correpondingtotheNORMAL
setting.
WithnoteF7pressed,presstheDATA+buttonagainandyouwillhear
the reference note C play with a greater intensity, indicating that you
haveselectedtheSOFTvelocitycurve. TheSOFTsettingcorresponds
to the most sensitive keyboard response which permits maximum
sound levels with a light touch.
To escape the velocity curve selection mode, simply release the
TOUCH function note F7.
• Press and hold the note F7 (TOUCH function) then
press the DATA – button.
TheinstrumentautomaticallyplaysareferencenoteCwithanintensity
corresponding to the current velocity setting, in this case SOFT.
Therefore, you will hear the reference note C play with a strong
intensity.
With note F7 pressed, press the DATA – button again to select the
HARDvelocitycurve. YouwillhearthereferencenoteCplaywithless
intensity. TheHARDsettingcorrepondstoanotsosensitivekeyboard
response which requires a heavier touch to obtain maximum sound
levels.
To set the NORMAL response in a single step
• Hold down the note F7 (TOUCH function) and press
both the DATA + and – buttons at the same time.
T
Transpo
Touch
E
ffects
b
E7 F7 G7
T
Transpo
Touch
E
ffects
b
E7 F7 G7
T
Transpo
Touch
E
ffects
b
E7 F7 G7

9
Digital Effects
The RPT114 provides a variety of digital effects - 3 Reverbs and 3 Effects
(modulating effects) - which can add realism to your sounds.
Each sound, when selected, recalls a default effect setting, according to the
default tables shown below. You can, however, change the effects assigned
to the Sounds, or bypass one or both effects by setting the “OFF” status.
The last selection made will remain memorized until changed again, or until
the instrument is turned off.
Activate the Reverb or Effects function and
assign a different effect
1. Press and hold the note D7 (REVERB function) and
press the DATA + or DATA – button.
Press the DATA + or DATA – button repeatedly (while still holding
note D7) to scroll through the choices in the following order of
selection:
Off, Room, Stage, Hall
DATA + DATA –
The change that takes place depends on the current Sound.
Pressing DATA + once
Forexample,ifthecurrentSoundisHarpsi,pressingDATA+willpass
from Room to Stage (see the default Reverb table above).
Pressing DATA – once
Conversely, if the current Sound is Harpsi, pressing DATA– will pass
from Room to Off (see the default Reverb table above).
OR
Effec
t
Reverb
S
ound
C7 D7 E7
Sounds Effects
Concert Grand Off
Rhodx Tremolo
FM Piano Chorus
Harpsi off
Strings Chorus
Pop Organ Chorus
Jazz Organ Tremolo
Pipe Organ Off
Sounds Reverb
Concert Grand Off
Rhodx Stage
FM Piano Hall
Harpsi Room
Strings Hall
Pop Organ Stage
Jazz Organ Stage
Pipe Organ Hall

10
2. Press and hold the note E7 (EFFECTS function) and
press the DATA + or DATA – button.
Press the DATA + or –button repeatedly (while still holding note E7)
to scroll through the choices in the following order of selection:
Off, Chorus, Tremolo, Phaser.
DATA + DATA –
The change that takes place depends on the current Sound.
Select, for example, the sound Strings (sound n. 5) and activate the
effects menu (note E7).
Pressing DATA + once;
the effect will pass from the default CHORUS to TREMOLO.
Pressing DATA – once;
the TREMOLO effect will return to CHORUS.
Repeat the operation for other RPT114 sounds.
Resetting to the default effect tables
Simply turn the instrument off then on again to reset to the default
Reverb and Effect tables shown overleaf.
OR
Tran
Touch
Effects
v
erb
D
7E7F7
G

11
Transpose
TheTRANSPOSEfunctionallowsyoutoquicklychangetheoverallpitchof
the instrument, raising or lowering it in steps of one semitone at a time (max.
+/–12 semitones). The transposition applied remains in memory until
changed again, or until the instrument is turned off. Turning RPT114 on
again restores the normal pitch (C = C).
1. Press and hold the note G7 (TRANSPOSE function)
and press the DATA + button or DATA – button.
The first time you press either the DATA + or DATA – button, the
instrument helps you to choose the new pitch by playing a reference
note in the current pitch, in this case C. Pressing DATA + again
transposes the instrument up one semitone and the note will automati-
callyplayaC#. ThesameapplieswhenyoupressDATA–totranspose
down. The pitch is raised or lowered by one semitone for every time
the Data + or Data – button is pressed.
To raise the pitch by one semitone
Hold down the note G7 (TRANSPOSE function) and press the DATA
+ button once. The instrument will play a reference note in the current
pitch (in this case C).
Press the DATA + button again and the pitch will be raised by one
semitone. The note played in this case will be C#. The RPT114 will
now be transposed to the new pitch: C = C#.
PressingDATA+againwillraisethe pitch byanothersemitone(C=D)
and so on. Continue in this way until you obtain the required pitch.
To escape from the TRANSPOSE menu, simply release the corre-
sponding function note G7.
To lower the pitch by one semitone
Hold down the note G7 (TRANSPOSE function) and press the DATA
– button once. The instrument will play a refernce note in the current
pitch (in this case D).
Press the DATA – button again and the pitch will be lowered by one
semitone. The note played in this case will be Db (C#). The RPT114
will now be transposed to the new pitch: C = Db.
PressingDATA–againwilllowerthepitchbyanothersemitone(C=C)
and so on. Continue in this way until you obtain the required pitch.
2. To cancel the transposition
Hold down the note G7 (TRANSPOSE function) and press both the
DATA + and DATA – buttons at the same time.
The standard pitch of the instrument is restored.
Tune
Transpose
Touch
s
F7 G7 A7
Tune
Transpose
Touch
s
F7 G7 A7
Tune
Transpose
Touch
s
F7 G7 A7

12
Tune
TheTUNEfunctionallows youfinetunetheinstrument. Thetuning canvary
between427.5Hzand452.5Hz(correspondingtoanexcursionofapprox.one
semitone) in steps of +/– 0.5 Hz. The default status of the instrument
correponds the the equal standard A = 440 Hz.
1. Press and hold the note A7 (TUNE function) and press
the DATA + or DATA – button to raise or lower the
tuning accordingly.
ThefirsttimeyoupresstheDATA+orDATA–button,theinstrument
automatically plays a sinusiodal reference sound (A = 440 Hz) which
will help you fine tune the RPT114 with any other instrument.
To raise the tuning
While still holding down the note A7 (TUNE function), press the
DATA+buttonagaintoobtainthefirstincrement(+0.5Hz). Continue
in this way until you obtain the required tuning level. The sinusoidal
referencesoundwillhelpyoufinetunetheinstrument. Releasethenote
A7 (TUNE function) to escape the function.
Midi
Tune
a
nspose
G7 A7 B7
Midi
Tune
a
nspose
G7 A7 B7
To lower the tuning
While holding down the note A7 (TUNE function), press the DATA –
button to activate the function. Bear in mind that the RPT114
memorizes the last setting made, therefore, in this case, you will hear
the reference sinusoidal sound play with the last tuning setting. Press
DATA – again to obtain the first decrement (– 0.5 Hz) and continue in
thiswayuntilyouobtaintherequiredtuninglevel.Releasethefunction
note A7 (TUNE) to escape the function.
To reset the tuning
You can reset to the standard tuning pitch (A = 440 Hz) at any time by
holding down the note A7 (TUNE function) and pressing both the
DATA + and DATA – buttons at the same time.
The standard tuning setting is also restored by turning the instrument
off.
Midi
Tune
a
nspose
G7 A7 B7

13
MIDI
MIDI,the abbreviationfor “MusicalInstrumentDigital Interface”,is aworld
standard interface that allows MIDI compatible instruments and other equip-
ment to communicate with each other in order to exchange data and control
one another.
MIDI is now a very common feature and a great deal of literature is available
explainingallthestandardsimplementedbyMIDI. Youarerecommendedto
consult other specialized literature if you wish to know more about the
standards implemented and how to apply them.
This section limits itself to explain the simplest forms of MIDI applications
for your RPT114. Some examples appear on the following pages.
TheMIDI function permits the selection of the MIDI reception/transmission
Channel, used for communication purposes when RPT114 and an external
MIDI device are connected via a MIDI cable.
Selecting the MIDI channel (reception/trans-
mission)
• Press and hold the note B7 (MIDI function) and press
the DATA + or DATA – button to change the MIDI
channel setting.
EachtimeyoupresstheDATA+button,theMIDIreception/transmis-
sion channel increases by one unit.
EachtimeyoupresstheDATA–button,theMIDIreception/transmis-
sion channel decreases by one unit.
You can select any channel from 1…16. The default MIDI channel is
Ch. 1.
Repeat the operations (making a mental note of how many times you
press the data button with B7 pressed), until you obtain the required
channel.
Resetting to the default MIDI channel
If you are not sure on which channel RPT114 is currently set, you can
reset to the default channel setting (Ch 1) by holding down the note B7
(MIDIfunction)andpressingbothDATA+andDATA–buttonsatthe
same time.
Atthispoint,toset to MIDIchannel5,forexample,holddownnote B7
(MIDI function) and press DATA + 4 TIMES.
Dem
o
Midi
Tune
o
se
A7 B7 C8
Dem
o
Midi
Tune
o
se
A7 B7 C8

14
Some general information on MIDI
The MIDI ports
TheRPT114moduleunderthekeyboardontheleftoftheinstrumentcontains
two MIDI ports: MIDI IN and MIDI OUT.
The MIDI IN port receives MIDI data from an external MIDI device which
can be used to control the RPT114. The MIDI OUT connector transmits
MIDI data generated by the RPT114 (for example, note or velocity data
generated by the playing keyboard).
The default MIDI reception/transmission channel setting of RPT114 is
channel1. Youcansetanychannelfrom1…16. WhateverMIDIchannelyou
decideto set willremainmemorized untilchangedagain, or untilyouturn the
instrument off then on again.
MIDI channels
The “MIDI channels” used in the MIDI communication system is similar to
television broadcasting. Each channel can receive a different stream of data
with respect to the others.
Exactly as occurs in television broadcasts, in order to exchange data, the
receivingandtrasmittingdevicesmustbetunedcorrectly. Inotherwords,the
MIDIcontrollingdeviceandtheMIDIreceivingdevicemustbothbesettothe
same MIDI channel, selected form 16 possible channels.
Multiple channel instruments, called multi-timbral units, can receive and
transmitacrossseveraldifferentMIDIchannelsatthesametime,buteachpart
must correspond to the same MIDI channel between the two communicating
units.
RPT114 is able to receive and transmit on one MIDI channel only. In this
situation, if RPT114 receives MIDI information from a multi-timbral con-
trolling device, it will only respond to the data travelling on the same channel
as the RPT114 reception channel, while the data travelling on the remaining
15 channels will be ignored.
MIDI messages transmitted and received by
RPT114
RPT114 transmits and receives the following type of MIDI information.
Note and Velocity data
This is information pertaining to the note played and relative velocity value.
The receiving device recognizes the note because it is defined by the “MIDI
notenumber”,andthevelocityvalueisdefinedbythe“MIDIvelocityvalue”.
Whenever a key on the RPT114is pressed, the noteand velocityinformation
is transmitted from the instrument’s MIDI OUT port to the receiving device.
Conversely, RPT114 will play the corresponding notes whenever note and
velocity data is received at the instrument’s MIDI IN port.
Program Change numbers
Thistype of information relates todata whichidentifies thesounds contained
intheRPT114memory. RPT114transmitsMIDIProgramChangenumbers
from 0 - 7, corresponding to the 8 Sounds that can be selected from the
command module. Whenever a Sound is selected, the corresponding MIDI
Program Change number is transmitted to the receiving device, causing the

15
correspondingly numbered voice to be selected in the external MIDI unit.
Conversely, whenever RPT114 receives a Program Change number (0-7)
fromanexternalMIDIdevice,thecorrespondinglynumberedRPT114Sound
will be automatically selected.
Control Change numbers
TheSoft,Sostenutoand DamperpedalsofRPT114generateControlChange
data (CC67, CC66, CC64) which is transmitted from the instrument’s MIDI
Out port whenever the pedals are operated.
The internal tone generator of the receiving device will respond to the pedal
solicitations in the same way as the RPT114 Sound engine. Whenever the
same type of Control Change data is received by RPT114, it will respond
appropriately.
MIDI Applications
The following explains how your RPT114 can be used in the most common
MIDI setups suited to this instrument:
a) as a MIDI controlling device (Master);
b) as a tone generator (in other words, a Slave);
c) for MIDI sequence recording.
As a MIDI controlling device
RPT114, like most MIDI instruments, transmits note and velocity informa-
tion (touch response) via the MIDI OUT port whenever notes are played on
the keyboard.
If the MIDI OUT port is connected to the MIDI IN port of
anotherMIDIkeyboard (synthesizer,etc.)ora tonegenera-
tor (more commonly called an “expander”, but essentially
any device with an internal sound engine), the external unit
will respond precisely to the notes played on the transmit-
ting keyboard.
The result is that such a setup allows you to play two instruments at the same
time, using RPT114 as the controlling device (Master) and the other as the
device being controlled (Slave).
Quitesimply, everytime youselect aSound, youwill senda Programchange
message to the external device who will respond by playing a second sound.
As a Slave device
AswellastransmittingMIDIinformation,RPT114recog-
nizes the same type of data if received at the MIDI IN port
fromanexternalControllingdevice. Inthiscase,theMIDI
IN port of the RPT114is connected to the MIDI OUT port
of the external controlling unit. This, therefore, allows
RPT114 to be controlled in exactly the same manner as
describedabove,onlythistime,theRPT114behavesasthe
slave and the external device the controller.
MIDI In
MIDI Out
MIDI keyboard
MIDI Out MIDI In
Expander
RPT114
RPT114