Yamaha TX-7 User manual

YAMAHA
TONE GENERATOR
GENERATEUR DE SON
TONGENERATOR
OWNER'S MANUAL
MODE D'EMPLOl
BEDIENUNGSANLEITUNG

INTRODUCTION
Congratulations on your purchase of aYamaha TX7 FM Expander! The Yamaha TX7
FM Expander is aMIDI controllable digital FM tone generator system which can dra-
matically expand the potential of the Yamaha DX7 Digital Programmable Algorithm
Synthesizer. It also functions with other Yamaha DX series synthesizers. The TX7 in-
corporates a32 voice memory as well as 32 programmable function memories containing
the effect data for all 32 voices. There are also 32 function memories available primarily
for use with the Yamaha DX7 digital FM synthesizer. Voices and function parameters
can be transferred to and from other MIDI equipment via the MIDI interface. The TX7
also incorporates acassette data interface that offers convenient mass storage and retrieval
of FM voices as well as functions.
IMPORTANT
This manual is organized in tutorial form. Therefore, in order to fully understand all aspects
of operating the TX7, we urge you to go through the manual and try out each operation
as it is described.
1

CONTENTS
PRECAUTIONS 3
CONNECTIONS &PANEL 5
SYSTEM/MEMORY CONFIGURATION 6
USING THE TX7 VOICES
Volume Control/Programming 9
The Combined Voice Mode 10
The Individual Voice Mode 11
THE TX7 AND OX FUNCTION MEMORIES
Function Memory Parameters 12
Editing Function Memory Parameters 1*3
Direct Functions 13
Real-Time Control Functions 15
More About the Shift and Normal Modes 18
Function Editing via the DX7 Data Entry Control 18
Transferring the DX7 Functions to the TX7
Function Edit Buffer 18
Storing TX7 &DX Function Parameters 19
Monitoring DX Function Memory Changes 20
CASSETTE OPERATIONS
Save/Verify 21
Load 22
Using the TX7 Cassette Interface to Save
and Load 0X7 Voices 22
MIDI OPERATIONS
MIDI MODE Functions 25
MIDI DUMP/INIT Functions 26
SPECIFICATIONS 30
ABOUT MIDI
Channel Information 31
System Information 31
MIDI DATA FORMAT
Reception Conditions 32
Reception Data 33
Transmission Data 36
System Exclusive Data Format 38
2

PRECAUTIONS
•Avoid placing the TX7 in locations exposed to direct sunlight or high temperatures, excessively high or low
humidity, high dust concentrations, or vibration.
•Be sure to connect the TX7 to an AC power supply that meets the power supply specifications listed on the
rear of the unit.
•If there Is any danger of lightning occurring nearby, remove the power plug from the wall socket in advance.
•Be sure to make all connections properly, as described in the "CONNECTIONS" section below.
•To avoid damaging your speakers and other playback equipment, turn off the power of all related equipment
before making connections.
•Do not use excessive force in handling control switches and knobs.
•To avoid broken cords and short circuits, be sure to unplug all connectors by grasping the respective plugs
—NOT the cords.
•Remove the power plug from the AC mains socket if the unit is not to be used for an extended period of time.
•Remove all plugs and connections if the unit is to be transported, to prevent damage to the cords and jacks.
•Do not use solvents such as benzene or paint thinner to clean the unit. Do not use insecticidesor other pressurized
spray products in proximity to the unit. Wipe off the exterior with soft cloth.
EFFECTS ON OTHER ELECTRONIC EQUIPMENT
•Since this unit incorporates digital circuitry, simultaneous use of other equip-
ment such as TVs, radios, etc. in close proximity may cause noise and erroneous
operation. If this occurs, separate the affected units sufficiently to eliminate
the problem. It is also agood idea to use separate line filters on each piece
of equipment.
FOR USERS WHO WISH TO CONNECT THEIR TX7 TO THE DX7,
DX9. OR KX1:
•The TX7 will not operate properly when connected to KX1 and DX7 manu-
factured before the standardization of MIDI specification- -AFTER TOUCH
will not operate. The serial numbers of the instruments concerned are:
DX7 serial numbers: 1001 --24880,251 25--26005
KX1 serial numbers: 1001--1105
In addition, if the TX7 is connected to DX7 or DX9 manufactured before the
specifications were changed, the DX7 or DX9 will not be able to receive the
contents of the DX function memory in the TX7. The serial numbers of the
instruments concerned are:
DX7 serial numbers: 1001--24880, 25125--26005
DX9 serial numbers: 1001 -2450
If you wish to connect your TX7 to one of the above-numbered instruments,
ask your dealer to replace the DX7, DX9, or KX1 system ROM.

BACKUP BATTERY
•The TX7 incorporates aspecial lithium backup battery system so that data in
memory is returned even when power is switched OFF.
•Do not attempt to replace the battery yourself. Refer this job to your dealer.
•The backup battery should last for approximately 5years. We recommend
replacing the battery early.
•All data in the TX7 memory will be lost when the battery is changed. Be sure
to save data you wish to keep onto cassette tape prior to replacing battery.
•When the battery voltage drops below 2. 3volts, the TX7's LCD display will
read "CHANGE BATTERY" when the power is turned ON.
4

CONNECTIONS &PANEL
Control Panel
YAMAHA
PHESei VOLUME PfOGRAM CHANGE STORE FUdtCTION MOOC DATA
LOW HtGH COMBINED INOVIOUAL TX PEHF OX FUNC ~^ NO(»»AL NO -1 YES +1
f—iW oil III! iiail nil III! 1III! (II Tl
S*VE/WEPrf LOAD/PROT MODE DUMP/INIT SHFT
TONE GENERATOR
CASSETTE MIW
Rear Panel
5

SYSTEMIMEMORY CONFIGURATION
The TX7 incorporates the same FM tone generation system found in Yamaha DX series Digital Programmable
Algorithm synthesizers and the Yamaha TX21 6and TX81 6tone generator systems. This is a6-operator, 32-algorithm
FM system which is programmable via the DX series synthesizers having the corresponding tone generators --The
DX7 and DX1 ,for example. Since the TX7 does not permit direct voice programming, we refer you to the doc-
umentation provided with the respective DX synthesizers for details on the FM tone generator system and pro-
gramming procedures. The Voices programmed in aDX synthesizer can be loaded into the TX7 via the MIDI interface,
however, and voices residing in the TX7 voice memory can be sent to aDX synthesizer. The TX7 does permit direct
programming of its function memories (described below) via the front panel. The TX7 also has adata cassette
interface which can be used to store and load the entire contents of the TX7 memory. The TX7 has 32 voice memories,
each of which contains the data for one complete 6-operator FM voice. Each of these voice memories also has
afunction memory which contains the data for the function and control parameters of that voice. The programmable
function parameters are given in the following chart:
MASTER TUNE
PLAY MODE, POLY/MONO ~
PITCH WHEEL RANGE
PITCH WHEEL STEP
PORTAMENTO MODE
PORTAMENTO/GLISSANDO SWITCH
PORTAMENTO TIME
MODULATION WHEEL RANGE
MODULATION WHEEL PITCH
MODULATION WHEEL AMPLITUDE
MODULATION WHEEL EG BIAS
FOOT CONTROL RANGE
FOOT CONTROL PITCH
FOOT CONTROL AMPLITUDE
FOOT CONTROL EG BIAS
BREATH CONTROL RANGE
BREATH CONTROL PITCH
BREATH CONTROL AMPLITUDE
BREATH CONTROL EG BIAS
AFTER TOUCH RANGE
AFTER TOUCH PITCH
AFTER TOUCH AMPLITUDE
AFTER TOUCH EG BIAS
LIMIT KEY LOWEST
LIMIT KEY HIGHEST
ATTENUATION
Thus, each TX7 voice can be independently programmed with its own real-time performance effects parameters
-- pitch wheel, modulation wheel, foot controller, after touch response, breath controller, etc. When aspecific
voice is selected, its function parameters are automatically selected as well. These function parameters are directly
programmable via the TX7 panel controls, or they can be sent to the TX7 from aDX synthesizer, via the MIDI interface.
The TX7 also contains asecond set of 32 function memories which is independent from that for the TX7 voice
memories. This second function memory set is intended to be used with the voice memories in the DX7 synthesizer.
6

The DX7 itself also has 32 voice memories, but only asingle function memory. Thus, if anew voice is selected
which requires adifferent set of function parameters, these must be re-programmed via the DX7 panel controls.
The TX7 supplies the DX7 with acomplete set of 32 function memories corresponding to each voice. In the case
of the DX9, which only has 20 voice memories, the TX7's first 20 (1 through 20) DX function memories apply,
and only those functions which the DX9 incorporates can be used. In the basic system connection configuration
given in the previous section, each time anew voice is selected on the DX synthesizer, the corresponding function
memory in the TX7 is called, and the parameters it contains are automatically sent to the synthesizer via the MIDI
interface.
The TX7 also has voice and function edit buffer memories, which contain the voice and function data in use.
(TX7 memory configuration diagram)
SERIES
DATA ENTRY SLIDER PROGRAM CHArWE /R^RAMETER EDIT
MIDI IN/OUT
DX DATA ENTRY VOLUME PERFORMANCE
—Ts;
—
FUNCTION
CASSETTE IN/OUT
PRESET VOLUME ]IPROGRAM CHANGE STORE IIFUNCTION ||MODE |\_
7

USING THE TX7 VOICES
As shipped, the TX7 voice memories contain the following pre-programmed voices with the corresponding function
parameters:
1. Acoustic Piano
2. High Strings
3. Trumpet B
4. Female Choir
5. Electric Piano B
6. Electric Organ B
7. Power Synthesizer B
8. Fat Synthesizer B
9. Spanish Guitar
10- Cello B
11. African Mallet B
12. Electric Piano &Breath Control Brass B
13. Pipe Organ B
14. Synth Rise B
15. Clav B
16. String Pad
17. Foot Control String Bell
18. Horn Section B
19. Double Harp B
20. Electric Guitar B
21. Electric Bass B
22. Harpsichord B
23. Vibraphone B
24. Foot Control Brass
25. FM Piano B
26. Orchestra
27. Bell Voice
28. Tube Rise B
29. Violins B
30. Kalimba B
31. Harmonic Synthesizer
32. Touch Trumpet
TX7 owners will also be provided with adata cassette tape containing the above voice/function set (Voice set B
on the tape), and asecond voice/function set (Voice set A) which Is as follows:
1. Acoustic Piano
2. High Strings
3. Trumpet A
4. Male Choir
5. Electric Piano A
6. Electric Organ A
7. Power Synthesizer A
8. Fat Synthesizer A
9. Jazz Guitar
10. Cello A
11. African Mallet B
12. Electric Piano &Breath Control Brass A
13. Pipe Organ A
8

14. Synth Rise A
15. Clav A
16. Tine Electric Piano
17. Breath Control Flute
18. Horn Section A
19. Double Harp A
20. Electric Guitar A
21
.
Electric Bass A
22. Harpsichord A
23. Vibraphone A
24. Breath Control Saxophone
25. FM Piano A
26. Modulation Wheel Timpani
27. Time Warp
28. Tube Rise A
29. Violins A
30. Katimba A
31. Harmonic Synthesizer
32. Orchestral
The pre-programmed internal voices can be accessed immediately, so we'll use them to become familiar with the
TX7 and its operating procedures. Later we'll find out how to load voice set Ainto the DX7 and voice set Binto
the TX7 for combined use (voice sets Aand Bare designed primarily to be used together —see the "CASSETTE
OPERATIONS" section, beginning on page 21).
Begin by turning the TX7 ON- -after connecting it to your DX7 as illustrated on the "CONNECTIONS" page. You
will be greeted by the <<YAMAHA TX7>> display which will appear on the LCD panel for afew seconds, and
then the LCD panel will read "CMB 1ACC. PIANO", indicating that voice number 1(acoustic piano) is selected
in the combined mode- -but we'll find out what that means alittle later. First we'll need to know how to set the
TX7's OUTPUT and PHONES volume level.
"CMB 1ACC. PIANO"
Combined voice
mode J] Voice
Voice
number name
Volume Control I
Programming
The four buttons on the TX7 panel under the PRESET VOLUME group label are
used to set volume level and program the TX7's preset volume function. First, try
pressing and holding either of the PRESET VOLUME arrow buttons. The LCD
panel will show ablack horizontal bar which will soon begin to shorten or lengthen
depending on which arrow button you have pressed. The volume bar will disappear
as soon as the arrow buttons are released. Simply, the longer the bar, the higher
the volume. Thus, the arrow buttons can be used to manually set any volume level
(the length of the bar at the instant the arrow button is released corresponds to
the volume set). Pressing either arrow button quickly, once, and then releasing it
causes the volume to be increased or decreased one increment in the specified
direction. The entire length of the bar corresponds to 80 increments (16 LCD
character x5segments per character).

The LOW and HIGH buttons in the PRESET VOLUME group correspond to two
preset volume levels that you can program yourself. To set the LOW preset volume
level, hold down the LOW button (the currently select volume level will be dis-
played) then, while still holding down the LOW button, use the arrow buttons to
set the desired LOW volume level, then release the LOW button. Now when you
press the LOW button, the volume level you just selected will automatically be set.
The same programming procedure applies to the HIGH button. The only catch is
that the TX7 will NOT accept aLOW setting which is higher than the HIGH setting
and vice-versa- -logical enough.
At this point you might want to plug apair of headphones into yourTX7's PHONES
jack, or monitor its output through your sound system while actually setting the
appropriate volume levels (turn off the sound output from the connected synthesizer
for the moment). Play on the connected synthesizer's keyboard to generate some
sound for this purpose.
If you have just set the TX7 preset volume levels as described above, you will have
The Combined Voice already heard the Acoustic Piano voice (pre-programmed voice 1). You can now
Mode remaining 31 voices by selecting them with the DATA group N0/-1
and YES/ +1buttons. Each press the YES/ +1button will increments the selected
voice number by one, and each press on the N0/-1 button will decrement the
selected voice number by one. Holding down either button will cause continuous
incrementing or decrementing in the specified direction. Notice that the voice
numbers on your DX7 synthesizer also changed to correspond with the voice you
selected on the TX7. (If this didn't happen, check again to make sure that the MIDI
IN and OUT terminals of the TX7 are properly connected to the corresponding
MIDI terminals on your synthesizer, as shown in the CONNECTIONS diagram on
page 5). Now try this: select any voice on your DX7 synthesizer- -the corre-
spondingly numbered voice on the TX7 should have automatically been selected.
This is the COMBINED voice mode. Any voice you select on either the TX7 or your
DX7 synthesizer will cause the correspondingly numbered voice on the other to
be selected as well. Thus, you have 32 voice "combinations". This means that by
storing appropriate voices in the appropriate memory locations you can combine,
for example, acello voice and astring voice to get areally thick string sound, a
male chorus and afemale chorus voice for afull chorus sound, or you can combine
completely unrelated voices to create unique new textures- -all selectable by
pressing asingle button.
In addition to calling the same voice number on the TX7, selecting avoice on your
DX7 synthesizer selects the corresponding DX function memory in the TX7, and
transfers the parameters it contains to the DX synthesizer's own function memory.
We'll find out more about the function memories later ("THE TX7 AND DX
FUNCTION MEMORIES" section, page 12).
Set up your sound system so you can monitor the output of both the TX7 and your
DX synthesizer simultaneously, and try out some of the combinations that "happen"
with the voices currently residing in the TX7 and DX7 synthesizer memories. We lt
find out how to lock the TX7's MASTER TUNE function to that of the DX7 later
("MIDI OPERATIONS" section, "MIDI MODE Functions", "D. ENTRY RCV. OFF",
page 25). For now, use the DX7 synthesizer's MASTER TUNE function to match
it to the pitch of the TX7. You can balance the levels of the TX7 and DX synthesizer
output either at the mixer used in your sound system, or by using the respective
volume control functions on the TX7 and the DX synthesizer. It is possible to control
the volu me of the TX7 via the DX7 synthesizer's DATA ENTRY control, but we'll
discover how to do that later ("MIDI OPERATIONS" section, "MIDI MODE
Functions", "D. ENTRY VOL OFF", page 25).
10

The Individual Voice
Mode
Of course, you won't always want to use combined voices. The TX7 also has an
INDIVIDUAL voice mode that allows completely independent selection of the TX7
voices. To activate the INDIVIDUAL mode, press the PROGRAM CHANGE group
INDIVIDUAL button. Note that the first section of the LCD display which originally
read "CMB", for "COMBINED", now reads "IND" for "INDIVIDUAL". Also note
that you can now select any voice on either the TX7 or your synthesizer without
affecting the voice selected on the other. Even though voice selection is now in-
dependent, selecting avoice on the DX7 synthesizer does call out the function
parameters from the correspondingly numbered DX function memory in the TX7.
Once again, don't worry about the function memories just yet.
(COMBINED and INDIVIDUAL mode nfiemory configuration chart)
TX7
Voice/
Functions
DX7
Voice/
Functions
11

THE 7X7 AND DX FUNCTION MEMORIES
To review, the TX7 has two sets of 32 function memories: one for the TX7's own voices, and one specifically for
Yamaha DX synthesizer voices. At this time, the Yamaha DX7 and DX9 Digital Programmable Algorithm Synthesizers
{the DX7 with 32 voices and the DX9 with 20) benefit most from the TX7's DX function memory expansion capability.
The top-line Yamaha DX1 Digital Programmable Algorithm Synthesizer already has dual voices generators and
independent function memories for each of its voices, but adding aTX7 to aDX1 gives you triple-voice performance
capability which, with alittle imagination, will allow you to create some really impressive sounds. Of course, more
Yamaha DX synthesizers are on the way, and they, too, will benefit greatly by addition of the TX7 FM Expander.
^The following is alist of all the function parameters that can be programmed in
Function Memory the TX7, and the corresponding display which will appear on the TX7's LCD display
PQr3meterS when each function is selected for programming.
C1IM^^T 1DISPLAY
A/IACTm Tl IMP MASTER TUNE
PLAY MODE, POLY/MONO PLAY MODE =POLY
PITCH WHEEL RANGE PW RNG =M. STP =
PITCH WHEEL STEP PW RNG =0,STP =S
PORTAMENTO MODE PORTaRTN, PRT,
PORTAMENTO/GLISSANDO SWITCH PORTA RTN,|lS,
PORTAMENTO TIME PORTA RTN, PRT,H
MODULATION WHEEL RANGE MW =PO, AO, EO
MODULATION WHEEL PITCH MW =0, Pffl, AO. EO
MODULATION WHEEL AMPLITUDE MW =0, PO, AEO
MODULATION WHEEL EG BIAS MW =0. PO. AO. E
FOOT CONTROL RANGE FC -.PO. AO, EO
FOOT CONTROL PITCH FC =0, pH, AO. EO
FOOT CONTROL AMPLITUDE FC =0, PO, aH, EO
FOOT CONTROL EG BIAS FC =0, PO, AO. E
BREATH CONTROL RANGE BC =, PO, AO, EO
BREATH CONTROL PITCH BC =0, pB, AO, EO
BREATH CONTROL AMPLITUDE BC =0, PO. Ag, EO
BREATH CONTROL EG BIAS BC =0, PO, AO, E
AFTER TOUCH RANGE AT =PO, AO, EO
AFTER TOUCH PITCH AT =0. pM. AO, EO
AFTER TOUCH AMPLITUDE AT =0. PO, aH, EO
AFTER TOUCH EG BIAS AT =0, PO. AO, Eg
LIMIT KEY LOWEST SP|1= C-2, H=G8
LIMIT KEY HIGHEST SP 1_-C-2, B= G8
ATTENUATION ATTENUATION 7
*In the above displays, the cursor block (|^) indicates the selected parameter.
*Some of the above functions pertain to real-time effects control from the connected
DX synthesizer, while others are "direct" functions which take effect immediately
after being set. The real-time control functions are: pitch wheel, modulation wheel,
foot control, breath control and after touch. The direct functions are: master tune,
split low limit, split high limit, attenuation, mono- poly play mode, and portamento.
*For real time effect control from the DX synthesizer to function, the "CTL. CHNG.
RCV. ON" (or "OFF") function, described in the "MIDI OPERATIONS" section,
must be "ON".
12

Editing Function Me-
mory Parameters
When you begin editing the function parameters, you will actually be editing the
parameters in abuffer memory which is independent from the 32 TX7 and 32 DX
function memories. When aTX7 voice is selected, its corresponding function
memory data is called into the TX7's function edit buffer, where it resides until a
new voice is selected. Thus you can actually hear the effect of function parameter
changes on the selected voice as you are editing. In order for the edited functions
to be recalled automatically the next time that voice is selected, they must then
be stored in the appropriate TX7 or DX function memory as described in the "Storing
TX7 &DX Function Parameters" section.
All the function parameters described above are accessed for editing by using the
FUNCTION button. Note that the FUNCTION button has two arrows: the one above
pointing to the right, and the one below pointing to the left. These arrows correspond
to theTX7's NORMAL and SHIFT modes, selected by the MODE button immediately
to the right of the FUNCTION button. In the NORMAL mode, each press on the
FUNCTION button scrolls forward through the function list, while in the SHIFT
mode each press on the FUNCTION button scrolls backwards through the function
list {for more details on using the SHIFT/NORMAL MODE button, see "More About
the Shift and Normal Modes", on page 18).
Press the FUNCTION button afew times and note that the TX7 LCD displays
correspond to those given in the FUNCTION &DISPLAY list given above. At some
point press the MODE button, once, then try pressing the FUNCTION button again.
You will now move backwards through the function list. Press the MODE button
again to revert to forward scrolling. This makes it faster and easier to access specific
functions for editing.
The value or mode of the selected function is then set using the DATA N0/-1
and YES/ +1buttons. The N0/-1 and YES/ +1buttons decrement and increment
the value of the selected function, respectively. Note that on displays which contain
anumber of functions, the position of the blinking block cursor indicates the
currently selected function.
Direct Functions These of functions take effect immediately when they are set. That is, they are not
effects which can be controlled via the connected DX synthesizer's various con-
trollers.
MASTER TUNE MASTER TUNE
This is the TX7's master tune function. All voices are affected simultaneously. The
displayed tuning range is from -64 to +63. Each increment corresponds to a1.2
cent change in pitch. Thus, the entire tuning range is ±75 cents. Setting MASTER
TUNE to sets the TX7 to standard (A =440 Hz) pitch.
The DATA N0/-1 and YES/ +1buttons are used to increment and decrement the
MASTER TUNE value. Hold the N0/-1 or YES/ +1button down for continuous
decrementing or incrementing in the specified direction.
PLAY MODE, POLY/MONO PLAY MODE =POLY
This function determines whether the TX7 voices are playable in the monophonic
or polyphonic mode. The N0/-1 and YES/+1 buttons are used to set the MONO
or POLY mode. MONO mode operation is last-note priority.
13

PORTAMENTO MODE PORTA HtN, PRT,
Four portamento modes are available: two of which can be selected in the poly-
phonic play mode (see "PLAY MODE, POLY/MONO", above), and two of which
can be selected in the monophonic play mode.
*POLY PORTAMENTO Modes: When the TX7 is set to the POLY PLAY MODE,
either the RETAIN (RTN) or FOLLOW (FLW) portamento mode can be selected
using the N0/-1 and YES/ +1buttons.
in the RETAIN mode, any sustained notes will be held (retained) when anew note
is played. The pitch of the new note will be reached via aportamento slide from
the previously played notes. In the FOLLOW mode, all sustained notes will slide
to asubsequently played note. If the sustain is OFF, only the pitch of the last note
played will slide to the new note.
MONO PORTAMENTO Modes: When the TX7 is set to the MONO PLAY MODE,
either the FINGERED (FGD) or FULLTIME (FUL) portamento mode can be selected
using the N0/-1 and YES/ +1buttons. In the FINGERED mode, the pitch of the
note will only slide to that of the subsequently played note if the first note played
is held down while the second note is played. If the first note played is released
before the second note is played there will be no portamento effect. In the FULL
TIME mode, portamento always occurs, whether the first note played has been
released or is held. Note that this function merely selects the portamento mode,
and the actual portamento (or glissando) effect must be turned on by setting an
appropriate PORTAMENTO TIME, as described below.
PORTAMENTOJGUSSANDO SWITCH |PORTA RTN, Bls,o[
This function determines whether acontinuous portamento slide or stepped
("glissando") slide will be produced. The PORTAMENTO (PRT) and GLISSANDO
(GLS) modes are selected using the N0/-1 and YES/ +1buttons. If the GLS mode
is selected, the pitch change from one note to another proceeds in semitone steps,
according to the PORTAMENTO TIME value.
PORTAMENTO TIME PORTA RTN, PRT,
This function determines the speed of the portamento or glissando slide effect.
The available range is to 99. At no effect is produced. Asetting of 99 produces
the longest portamento or glissando.
*A footswitch connected to the DX7 PORTAMENTO control jack can also be used
to turn the TX7 portamento function on and off.
LIMIT KEY LOWEST SPH= C-2, H=08
With the LIMIT KEY LOWEST and LIMIT KEY HIGHEST functions it is possible
to designate aspecific range of keys on the DX7 keyboard which will control the
TX7. Any key outside the key range designated will not produce any sound output
from the TX7.
LIMIT KEY LOWEST specifies the lowest DX7 key which will produce an output
from the TX7. The programmable range is from C-2 to G3
LIMIT KEY HIGHEST SPL =C-2,B =G8
LIMIT KEY HIGHEST specifies the highest DX7 key which will produce an output
from the TX7. The programmable range is from C-2 to Gg
14

(Limit key operation examples)
LOWEST <HIGHEST
lL
Range between Land H
LOWEST =HIGHEST
II
H
Only one note produced
LOWEST >HIGHEST
II
Range below Hand above L
Real-Time Control
Functions
ATTENUATION [ATTENUATION 7
This function sets the volume level of the corresponding voice. This is particularly
useful for balancing the levels of different voices. The attenuation range is from
to 7, selected using the N0/-1 and YES/ +1buttons. Asetting of 7corresponds
to maximum volume (minimum attenuation), and asetting of corresponds to
minimum volume (maximum attenuation).
This group of functions pertains to effects which are controlled via controllers built
into or connected to the DX synthesizer being used with the TX7.
Please note that all functions in this group, except the pitch wheel functions, have
exactly the same parameters which produce the same effects via the different
controllers. The parameters for MODULATION WHEEL, FOOT CONTROLLER,
BREATH CONTROLLER and AFTER TOUCH are all the same: depth (0 —15),
pitch (off or on), amplitude (off or on) and EG bias (off or on). For these four
controllers to function, however, the AMPLITUDE MODULATION SENSITIVITY
and PITCH MODULATION SENSITIVITY parameters in the voice data of the cor-
responding voice must be set to avalue other than 0. The LFO modulation speed
setting is also integral with the actual voice data, and must be set as required for
each voice.
PW RNG =.STP =
PITCH WHEEL RANGE
This function permits the DX7 pitch wheel to control TX7 voices. The pitch wheel,
parameters can be programmed individually for each voice. The pitch wheel range
can be set from to 12. At the pitch wheel has no effect. Each increment increases
the pitch wheel range by one semitone. Thus, the pitch wheel range would be set
to 7to achieve afull fifth (plus/ -minus one fifth from center position) range. A
setting of 12would give afull octave pitch bend, up and down. The desired pitch
bend range is set using the N0/-1 and YES/+1 buttons.
15

PITCH WHEEL STEP PW RNG =0, STP =I
The pitch bend range setting, described above, permits continuous pitch bend over
the specified range. The step function, however, programs the pitch wheel to in-
crease and decrease pitch in steps, the size of which are determined by the PITCH
WHEEL STEP setting. Any STEP value higher than causes the PITCH BEND
RANGE value to be automatically set to 12. The PITCH BEND STEP range is also
from to 12. The following chart gives the number of steps and range for the various
STEP values:
STEP =1±1 octave (12 semitones), 12 steps.
STEP =2±1 octave (12 semitones), 6steps.
STEP =3±1 octave (12 semitones), 4steps.
STEP =4±1 octave (12 semitones), 3steps.
STEP =5±1 flat seventh (1 semitones), 2steps.
STEP =6±1 octave (12 semitones), 2steps.
STEP =7±1 fifth (7 semitones), 1step.
STEP =8±1 sharp fifth (8 semitones), 1step.
STEP =9±1 sixth (9 semitones), 1step.
STEP =10 ±1 flat seventh (1 semitones), 1step.
STEP =11 ±1 seventh (11 semitones), 1step.
STEP =12 ±1 octave (12 semitones), 1step.
MODULATION WHEEL RANGE MW=B,PO, AO, EO
This function determines the maximum depth of modulation, as applied with the
modulation wheel at its maximum position. The programmable range is to 15,
corresponding to the to 99 range provided on the DX7. The desired depth value
Is selected using the N0/-1 and YES/ +1buttons.
MODULATION WHEEL PITCH MW =0,pH, AO, EO
This "switch" determines whether modulation will be applied to the pitch of the
corresponding voice to produce vibrato type effects. MODULATION WHEEL PITCH
is either (OFF) or 1(ON).
MODULATION WHEEL AMPLITUDE MW =Q, PO,aB,Eq|
This "switch" determines whether modulation will be applied to the amplitude
(volume) of the corresponding voice to produce tremolo or wow type effects.
MODULATION WHEEL AMPLITUDE is either (OFF) or 1(ON).
MODULATION WHEEL EG BIAS MW =0,PO, ao,e|
This "switch" determines whether modulation will be applied to the EG bias of the
corresponding voice to produce tonal variations. MODULATION WHEEL EG BIAS
Is either (OFF) or 1(ON).
FOOT CONTROL RANGE FC=H,PO, AO, EO
This function determines the maximum depth of modulation, as applied with the
foot controller at its maximum position. The programmable range is to 15, cor-
responding to the to 99 range provided on the DX7. The desired depth value is
selected using the N0/-1 and YES/+1 buttons.
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FOOT CONTROL PITCH |fc =0,P J,AO, EO
This "switch" determines whether modulation will be applied to the pitch of the
corresponding voice to produce vibrato type effects. FOOT CONTROL PITCH is
either (OFF) or 1(ON).
FOOT CONTROL AMPLITUDE FC=Q,PO, aB^EQ
This "switch" determines whether modulation will be applied to the amplitude
(volume) of the corresponding voice to produce tremolo or wow type effects. FOOT
CONTROL AMPLITUDE is either (OFF) or 1(ON).
FC=0,PO, AO,E
FOOT CONTROL EG BIAS
This "switch" determines whether modulation will be applied to the EG bias of the
corresponding voice to produce tonal variations. FOOT CONTROL EG BIAS is either
(OFF) or 1(ON).
BREATH CONTROL RANGE BC =H,PO, AO, EO
This function determines the maximum depth of modulation which can be applied
with the breath controller. The programmable range is to 15, corresponding to
the to 99 range provided on the DX7. The desired depth value is selected using
the N0/-1 and YES/ +1buttons.
BREATH CONTROL PITCH |BC =0,P J, AO, EO
This "switch" determines whether modulation will be applied to the pitch of the
corresponding voice to produce tremolo or wow type effects. BREATH CONTROL
AMPLITUDE is either (OFF) or 1(ON).
BREATH CONTROL AMPLITUDE |bC =0,PQ, aJ, EO
This "switch" determines whether modulation will be applied to the amplitude
(volume) of the corresponding voice to produce tremolo or wow type effects.
BREATH CONTROL AMPLITUDE is either (OFF) or 1(ON).
BC =0,PO,AO,E|
BREATH CONTROL EG BIAS
This "switch" determines whether modulation will be applied to the EG bias of the
corresponding voice to produce tonal variations. BREATH CONTROL EG BIAS is
either (OFF) or 1(ON).
AFTER TOUCH RANGE |at =B,PO, AO, EO
This function determines the maximum depth of modulation, as applied with the
maximum after touch key pressure. The programmable range is to 15, corre-
sponding to the to 99 range provided on the DX7. The desired depth value is
selected using the N0/-1 and YES/ +1buttons.
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AFTER TOUCH PITCH AT =0,P ,A0, EO
This "switch" determines whether modulation will be applied to the pitch of the
corresponding voice to produce vibrato type effects. AFTER TOUCH PITCH is either
(OFF) or 1(ON).
AFTER TOUCH AMPLITUDE AT =0, PO,Affl,EO
This "switch" determines whether modulation will be applied to the amplitude
(volume) of the corresponding voice to produce tremolo or wow type effects. AFTER
TOUCH AMPLITUDE is either (OFF) or 1(ON).
AFTER TOUCH EG BIAS AT =0, PO,AO,E|
More About the Shift
and Normal Modes
Function Editing via
the DX7 Data Entry
Control
Transferring the DX7
Functions to the TX7
Function Edit Buffer
This "switch" determines whether modulation will be applied to the EG bias of the
corresponding voice to produce tonal variations. AFTER TOUCH EG BIAS is either
(OFF) or 1(ON).
The MODE NORMAL and SHIFT button Is used to select the group of functions
accessible by certain buttons. Note that four of the TX7's control buttons have labels
below as well as above them. The groups of functions corresponding to the labels
above these buttons are accessed in the NORMAL mode, and the groups of functions
corresponding to the labels below the buttons are accessed in the SHIFT mode.
Specifically, in the NORMAL mode you can access the COMBINED and INDI-
VIDUAL voice PROGRAM CHANGE functions, and the TX PERF and DX FUNC
STORE functions. In the SHIFT mode you can access the CASSETTE SAVE/VERIFY
and LOAD/PROT functions, and the MIDI MODE and DUMP/INIT functions. All
these operations will be covered later. When the MODE button is pressed in any
mode, except while editing function parameters (in which case it simply reverses
the direction of scrolling through the function parameter list), the LCD display
will read either "= NORMAL MODE! =" or "= SHIFT MODE I", indicating the
mode you have just selected. You must then press the appropriate control
button —PROGRAM CHANGE COMBINED in the NORMAL mode, for
example- -to access the desired functions.
The DX7's DATA ENTRY control can be used to set all TX7 function memory pa-
rameters except ON/OFF switch type parameters (e.g. MODULATION WHEEL
PITCH ON/OFF) and functions not available on the DX7 (e.g. ATTENUATION).
The procedure is as follows:
Set the TX7 to the SHIFT mode and press the MIDI MODE button until you get
the "D. ENTRY RCV. ON" (or OFF) display. Turn this function ON by pressing the
YES/ +1button. Set the DX7 to "SYS INFO AVAIL" (this is done by activating the
DX7 FUNCTION mode, then pressing the number 8memory button until the "SYS
INFO UNAVAIL" display appears, then pressing the YES/ +1/0N button), then
select the function parameter to be programmed on the DX7. Setting the desired
value on the DX7's LCD display will automatically set the corresponding value in
the TX7 function edit buffer. This operation can be monitored on the TX7 display
by calling the appropriate function display on the TX7. ON/OFF functions must
be set using the TX7 N0/-1 and YES/+1 buttons.
The contents of the DX7 function memory can be sent to the TX7 function edit
buffer as follows:
Set the DX7 to "SYS INFO AVAIL", then while still in the DX7 FUNCTION mode,
press the DX7 function buttons corresponding to the function parameters you wish
to send to the TX7. Each function will be transmitted as its button is pressed, and
this can be confirmed on the TX7 by calling the appropriate TX7 function display.
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storing TX7 &DX
Function Parameters
Once you have gone through and programmed the required functions for aparticular
voice, you will need to store the contents of the function edit buffer into the ap-
propriate function memory. You can store the programmed functions in any of the
32 TX7 function memories, or any of the 32 DX function memories.
The first step in storing function data is to turn the TX7's internal memory protect
OFF. This is accomplished by switching to the SHIFT mode and pressing the
LOAD/PROT button. This button accesses three different functions: memory protect
on/off (MEM. PROTECT ON), internal or external function memory load when
loading data from acassette tape (LOAD FUNC ?INT), and cassette load (LOAD
CASSETTE ?) .For now we will be concerned only with the memory protect function.
Each press on the LOAD/PROT button cycles through the three available functions.
Select the "MEM. PROTECT ON" display. The memory protect is then turned ON
or OFF using the N0/-1 and YES/+1 buttons. Turn the memory protect OFF, then
press the MODE switch to return to the NORMAL mode. Now press either the
STORE TX PERF or DX FUNC button, depending on whether you want to store
the programmed functions into one of the TX7's function memories or one of the
DX function memories. If you select STORE TX PERF the display will respond
with "STR TX PERF. ?XX", where "XX" is the number of the currently selected
function memory. You can now activate the actual store operation for the displayed
TX function memory number by pressing the YES/ +1button. The display will read
"FINISHED III" after afew seconds, indicating that the store operation has been
completed, and then will revert to the "STR TX PERF. ?XX" display. You can store
the programmed function data into any other memory location by selecting adif-
ferent memory number using the STORE TX PERF button. Each press on the STORE
TX PERF button increments the displayed memory number by one.
Exactly the same process applies to storing the function data into any one of the
DX function memories. If you press the STORE DX FUNC button the display will
respond with "STR DX's FUNC ?XX", where "XX" is the currently selected function
memory number. Any other DX function memory can be selected using the STORE
DX FUNC button, and the store operation is executed by pressing the YES/+1
button.
*Be sure to turn memory protect back ON after the store operation.
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