Technical information: Yamaha
FX/FS series Electone organs

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This information was gathered through observation and by examining the Yamaha service manuals in scanned PDF format. It may be incomplete or incorrect.

Page contents

PCB descriptions
Connector pinouts
Keyboard scanning
Analog inputs
Control panel buttons/levers
Model comparison

PCB Descriptions

FS-20/30/100/200FX-1FX-10/20, FS-50/70/300/500

If you open up the organ you will notice several different circuit boards, some in a metal bracket, some on standoffs and some attached to the undersides of the manuals. Each circuit board has its own name and modular function. Here are the relevant ones for the MIDI module:

CKD

Location: Mounted in the metal bracket, closest to the front of the organ.
Functions: System clock generator, keyboard scan driver.
Connectors:

  • C1 (26-pin IDC, top left): Solo manual (FS-70/500, FX-1/20)
  • C2 (34-pin IDC, top left center, green): Upper manual
  • C3 (34-pin IDC, top left center, black): Lower manual
  • C4 (20-pin IDC, top right): Pedal keyboard
  • C5 (3-pin, top right): Pitch control knob

SC

Location: Mounted in the metal bracket, just behind the CKD board.
Functions: System controller (CPU, RAM and ROM).
Connectors:

  • C1 (40-pin IDC, top left): MDR-1 interface; has 13-bit address/8-bit data bus
  • C2 (16-pin IDC, top left center): Control panel buttons, sliders, LEDs and drawbars; also carries +5V power
  • C3 (30-pin IDC, top left center, black): Memory pack via DRE board, 12-bit address, 8-bit data
  • C4 (10-pin, top right): Analog inputs - aftertouch and expression pedal
  • C5 (5-pin, bottom right): Battery back-up for the configuration RAM

DRE

Location: Mounted vertically on standoffs in front of the metal bracket.
Functions: Distribution driver for control panel I/O, over/under voltage protection for memory pack.
Connectors:

  • C1 (10-pin): Foot switch, knee switch, pedal dynamic control, celeste status
  • C2 (8-pin): Tremolo, chorus
  • C3 (5-pin): RCI, RCII
  • C4 (8-pin, not placed): dynamic control for all keyboards
  • CN1 (16-pin IDC, black, by itself): Control panel I/O from SC board
  • CN2 (16-pin IDC, black): Panel 1-1
  • CN3 (16-pin IDC, gray): Uppermost control panel
  • CN4 (16-pin IDC, green): Panel 4-1
  • CN5 (10-pin IDC): Memory pack
  • CN6 (20-pin IDC): Memory pack
  • CN7 (30-pin IDC): Memory pack I/O from SC board
  • CN8 (2-pin, white): +5V power input (square pin/black wire is ground)

CKDS

Location: Mounted in the metal bracket, in the middle of the right-hand stack.
Functions: System clock generator, keyboard scan driver.
Connectors:

  • CN1 (26-pin IDC): Solo manual (FS-70/500, FX-1/20)
  • CN2 (34-pin IDC): Upper manual
  • CN3 (34-pin IDC): Lower manual
  • CN4 (20-pin IDC): Pedal keyboard
  • CN5 (30-pin IDC): Memory pack, 12-bit address, 8-bit data
  • CN6 (16-pin IDC): Control panel panel buttons, sliders, LEDs and drawbars; also carries +5V power
  • C1 (10-pin): Pitch control knob, etc.

SCS

Location: Mounted in the metal bracket, in the back of the right-hand stack.
Functions: System controller (CPU, RAM and ROM).
Connectors:

  • CN1 (40-pin IDC): MDR-1 interface; has 13-bit address/8-bit data bus
  • C1 (3-pin): Battery back-up for the configuration RAM
  • C2 (10-pin): Analog inputs - aftertouch and expression pedal

DRE

Location: Mounted vertically on standoffs in front of the metal bracket.
Functions: Distribution driver for control panel I/O, over/under voltage protection for memory pack.
Connectors:

  • C1 (10-pin): Foot switch, knee switch, celeste status
  • C2 (8-pin): Tremolo, chorus
  • C3 (5-pin): RCI, RCII
  • C4 (8-pin): dynamic control for all keyboards
  • CN1 (16-pin IDC, black, by itself): Control panel I/O from CKDS board
  • CN2 (16-pin IDC, black): Panel 1-1
  • CN3 (16-pin IDC, gray): Uppermost control panel
  • CN4 (16-pin IDC, green): Panel 4-1
  • CN5 (10-pin IDC): Memory pack
  • CN6 (20-pin IDC): Memory pack
  • CN7 (30-pin IDC): Memory pack I/O from CKDS board via PAC board
  • CN8 (2-pin, white): +5V power input (square pin/black wire is ground)

SC

Location: Mounted in the metal bracket, at the back.
Functions: System controller (CPU, RAM and ROM).
Connectors:

  • CN1 (40-pin IDC): MDR-1 interface; has 13-bit address/8-bit data bus
  • C1 (7-pin): Analog inputs - aftertouch and expression pedal
  • C2 (3-pin): Battery back-up for the configuration RAM
  • C3 (12-pin): Control panel buttons, sliders, LEDs; also carries +5V power
  • C4 (14-pin, FS-30/200): Preset board buttons, LEDs and drawbars; also carries +5V power

OP

Location: Mounted in the metal bracket, at the front.
Functions: Operator (combination, rhythm), keyboard scan driver.
Connectors:

  • CN1 (20-pin IDC): Pedal keyboard
  • CN2 (34-pin IDC): Lower manual
  • CN3 (34-pin IDC): Upper manual
  • C1 (5-pin): Knee and foot switches

Connector pinouts

Keyboard ribbon cables

Type: 20, 26 or 34-pin IDC
Connectors (Solo manual, 26-pin): CKD:C1/CKDS:CN1, Solo:CN1
Connectors (Upper manual, 34-pin): CKD:C2/CKDS:CN2/OP:CN3, Upper:CN1
Connectors (Lower manual, 34-pin): CKD:C3/CKDS:CN3/OP:CN2, Lower:CN1
Connectors (Pedal, 20-pin): CKD:C4/CKDS:CN4/OP:CN1, Pedal:CN1
Pin 1 position: Lower left when looking at the male header pins from the mating side with the polarizing key down.

Solo manual:

2 C# D# F G A B VSS VSS VSS VSS VSS VSS VSS 26
1 CL D E F# G# A# C U4 U3 U2 D2 D3 D4 25

Upper/lower manuals:

2 C# D# F G A B VSS VSS VSS VSS VSS VSS VSS VSS VSS VSS VSS 34
1 CL D E F# G# A# C U4* U3 U2 U1 U0 D0 D1 D2 D3 D4* 33

Pedal:

2 C# D# F G A B VSS VSS VSS VSS 20
1 CL D E F# G# A# C D1* D0 VSS 19

  • CL .. C: Send lines for matrix scanning. These pins map to the different pitches in an octave.
  • U0 .. U4: Return lines for upper (key-off) contacts, octaves 0 (lowest) through 4 (highest).
  • D0 .. D4: Return lines for lower (key-on) contacts, octaves 0 (lowest) through 4 (highest).

*Note: Pins D4,U4 on the lower and upper manuals and D1 on the pedal are unconnected (floating) on the FS-20/30/100/200 models.

**Note: The FS-50/70/300/500 models use the same key layout as the FX series, but omit octave 1 in the pedal, octave 4 in the lower manual and all but high C in octave 0 of the upper manual.

The send lines on the key scanner driver board are source/sink drivers.
The orientation of the key switch diodes allows current flow between the send and return line sets only when a send line is driven low and a key is pressed.
The return lines are pulled up to +5V on the key scanner driver board.

Control panel ribbon cables

FS-20/30/100/200FX-1/10/20, FS-50/70/300/500

Type: 16-pin IDC
Connectors (Master cable): SC:C2/SCS:CN2, DRE:CN1
Connectors (Left side and preset board): DRE:CN2, PN11:CN1, PN31:CN1
Connectors (Right side): DRE:CN3, PN41:CN1
Connectors (Upper panel): DRE:CN5, RER0:CN1
Pin 1 position: Lower left when looking at the male header pins from the mating side with the polarizing key down.

Master cable:

2 VSS SDi TAC1 C1 TDi /IC RSQ +5V (SC) 16
1 VSS SDO TB TAC0 C0 SYW +5V (SC) 15

Divisions 1 and 2 (left side and preset board):

2 VSS ØM C0 SDA TAC1 TDi +5V 16
1 VSS MA C1 SDO SDB TB TAC0 +5V 15

Division 3 (Right side):

2 VSS VSS MA C1 SDB +5V +5V +5V 16
1 VSS VSS VSS ØM C0 SDC +5V +5V 15

Division 4 (Upper panel):

2 VSS ØM C1 C0 SDC SDD +5V 16
1 VSS ØM C1 C0 SDC SDD +5V 15

  • SDO: Serial loop data out (from SC/CKDS, eventually loops through shift registers back to SDi)
  • SDi: Serial loop data in (toward SC/CKDS)
  • SDA .. SDD: Serial loop data between divisions.
  • TB: Preset drawbar initializing pulse, from SC/CKDS
  • TAC0, TAC1: Preset drawbar control signals, from SC/CKDS (only TAC1 is used).
  • C0, C1: Serial loop control signals, from SC/CKDS
  • TDi: Preset drawbar return data, from PSB
  • SYW/ØM: 50kHz serial clock
  • /IC: Initial Clear. Goes high 0.75 second after organ is powered on.
  • RSQ Digital mute control
  • MA Slider motor enable signal

On the master cable, the return data lines SDi and TDi are pulled up to +5V on the SC/CKDS board, while the send data lines are pulled up to +5V on the DRE board.
When the /IC line is driven low, the C0 and MA signals to the different divisions are forced low and the C1 signal is forced high.
The SDA signal has no connection on the DRE board, but is used to connect the serial data loop from panel PN31 (upper manual, left side) to PN11 (lower manual, left side).
The SDD signal connects the serial data loop from Division 4 to the two I/O drivers IC1 and IC2 on the DRE board. IC2's output is then connected to the master cable SDi line.

Type: 12- and 14-pin inline
Connector (Control panel): SC:C3
Connector (Preset board): SC:C4
Pin 1 position: Toward the backplane connector on the SC board.

Control panel cable:

1 VSS /BS Si SDO VSS VSS +5V +5V ØPN GLE 12

Preset board (FS-30/200):

1 VSS VSS TVDL TVCL TVCO TVDI SDI SO VSS VSS +5V +5V ØPN GLE 14

  • /BS: Break switch - contacts VSS when "Break" button is pressed; routed to keyboard scan as upper:CL3
  • SDO: Control panel serial loop data out (from SC, eventually loops through shift registers back to Si)
  • Si: Control panel serial loop data in (toward SC)
  • SO: Preset button serial loop data out (from SC, buffered directly from Si signal; eventually loops through shift registers back to SDI)
  • SDI: Preset button serial loop data in (toward SC)
  • ØPN: 50kHz serial clock
  • GLE: Control panel and preset button shift/latch selection (0=shift, 1=load inputs/latch outputs)
  • TVCL: Preset drawbar channel load, from SC (0=shift, 1=latch outputs)
  • TVCO: Preset drawbar serial control data, from SC (4 bits indicate which of the 11 channels to drive)
  • TVDL: Preset drawbar data load, from SC (0=shift, 1=load inputs)
  • TVDI: Preset drawbar serial return data, from PN3

The return data lines Si, SDI and TVDI are pulled down to ground on the SC board, while the /BS line is pulled up to +5V.

Keyboard scanning

Description

The Yamaha FS/FX-series Electones have three or four keyboards including the pedal, with a total of 111, 147, 148 or 184 keys, depending on the model. Each of the manual keys contains a diode and a double-throw switch. Velocity sensing is achieved by measuring the time between the upper contact opening and the lower contact closing.
Each pedal key contains a diode and a single-throw switch (normally open), and therefore is not sensitive to velocity.

The organ scans the keyboard at a variable rate, up to 12,000 times per second using a 13×28 matrix. 13 send lines map to the distinct pitches in an octave (C# to C, with an extra low C for the first octave on each keyboard). 28 return lines are linked to the different octaves on the keyboards, 15 for the key-down contacts – 3 solo octaves, 5 upper, 5 lower and 2 pedal – and 13 for the key-up contacts (the pedal has only key-down contacts).

Electrical Details

The 13 send lines are used as sink drivers (two 3:8 active-low demultiplexers for the FS-20/30/100/200, or a chain of 13 D-flip-flops for all other models). The key switch diodes are oriented with the cathodes toward the outputs, preventing current flow when the output is driven high.
At each scan cycle, the lines are driven low one at a time. Most models drive low C first, then C#, D, and so on up to high C. The FS-20/30/100/200 models drive the pitches in a different order: D, F#, A#, C#, F, A, CL, E, G#, C, D# G, B

The 28 return lines are pulled to +5V on the CKD/CKDS/OP board (4.7kΩ to VDD) and drop low when a key switch connects them to an active sink driver. The sink current is less than 1mA per return line, and since there is a diode between the return line and the sink driver, I would expect the low-level voltage to be somewhere between 0.4V and 0.6V.

Most of the models in this family share the same 13-line driver bus for all keyboards. The FX-1, on the other hand, has two independent scanning systems: one handles only the upper manual, and the other handles the solo manual, the lower manual and the pedal.

Diodes on the CKD/CKDS/OP board simulate closed key-up contacts for low C on all octaves except the lowest on each keyboard.
Additionally, the foot switch, knee switch and break buttons on the FS-20/30/100/200 are connected to the CL signal for octaves 1-3 on the upper manual.

Timing Details

A nominal 133kHz or 156kHz clock (scaled from the 4.8MHz system clock) drives the scanning process. This clock is variable, linked to the pitch control knob, observed to tune the frequency ±1%. As the organist tunes the pitch upwards, the scan frequency increases.

At each clock pulse, the controller may or may not advance to the next send line. If all keys attached to the send line are in the resting position, there is no delay. However, if any key is found to be either partially or fully depressed, the controller delays one or more clock periods after advancing to the next line while it processes the keypress. After the last send line (high C), the controller advances directly back to the first (low C); there is a line driven at all times, and never are two lines driven simultaneously.

On at least the FX-20, the delay is unpredictable so the MIDI adapter has to monitor multiple send lines, but always aligned to the 156kHz clock. With a little clever coding, you could do it with as few as five lines monitored; I opted for monitoring 12 lines after the failure of my first revision, which only listened to the low C.

Analog inputs

There are four analog signals from the console that the organ responds to:

  • Solo manual aftertouch
  • Upper manual aftertouch
  • Lower manual aftertouch: The three aftertouch signals range from 0 (no pressure) to +3V (maximum pressure), driven by op amps.
  • Expression pedal: I'm not sure what drives the expression pedal, but its signal also ranges from 0 (heel down) to +3V (toe down).

The analog inputs are grouped at the 10-pin connector on the SC/SCS board. The expression pedal signal passes through this connector, in one wire, out another, on its way to the bar graph display on the control panel.

Control panel buttons/levers

The control panel is essentially a large shift register transceiver driven by a 50kHz clock. The protocol is compatible with the PIC's SPI module. The SDO and SDi signals contain the data being shifted into the register at one end and out the other. SDO is for outputs, such as LEDs and motor control, and SDi is for inputs such as buttons and sliders.
The C0 and C1 signals control the mode (truth table below).

The control panel uses positive logic; logic 0 is equivalent to 0V and logic 1 is +5V. Though the transitions occur on the falling clock edge, it is most simple and reliable to read the panel data (SDO, SDi) on the rising edge.

C0 C1 SYW Action
0 0 * No operation
0 1 \ Load shift register from inputs; first input bit appears at SDi
1 0 \ Shift data (SDO => panel => SDi)
1 1 \ Write shift register to outputs, then shift (SDO => panel => SDi)

The preset drawbars are also driven by the same 50kHz clock, but in a parallel input-only channel. The TDi line is similar to SDi, carrying the input signals from the shift register. The TAC0 and TAC1 lines are like C0 and C1, except that TAC0 is not connected to anything. The TAC1 line is the sole mode control signal (partial truth table below).

The drawbars are arranged in 14 pairs, with 8 bits of data per pair. To advance to the next pair, the TAC1 signal is pulsed. To begin the first pair, the TAC1 and TB signals are pulsed simultaneously.

TAC1 SYW Action
Pulse \ Advance to the next pair of drawbars
0 \ Shift data (panel => TDi)

My observation of the signals is as follows:

  1. TAC1 rests at +5V.
  2. TAC1 goes low near a falling clock edge. Shortly thereafter, TDi rises.
  3. The clock rises and falls once.
  4. TB and TDi are driven high while the clock is low.
  5. The clock rises and falls once. Shortly thereafter, TDi falls.
  6. Near the TDi transition, TB falls while TAC1 remains high.
  7. The clock rises and falls twice.
  8. TAC1 falls.
  9. Eight clock pulses (rise and fall) occur. The shift register shifts. TDi transitions occur shortly after each falling edge.
  10. After the eighth falling clock edge, TDi goes low. Additional clocks occur while the controller processes the data.
  11. After a falling clock edge, TAC1 is driven high.
  12. The clock rises and falls once.
  13. Steps 8-12 repeat until all drawbar pairs are read, plus one guard (15 bytes in all for the FX-20).

Though theoretically possible to transfer bits in and out simultaneously, the controller does only one function at a time. The cycle seems to be: Read panel => Write panel => Read drawbars.

While reading the panel, the controller repeatedly writes the byte 0x02 via SDO, and reads one extra byte after the data transmission completes.

While writing the panel, the repeated value 0x02 appears on the SDi line. No extra data is written at the end of the transmission.

After reading the 14 preset drawbars, the controller reads a 15th byte, which turns out to have the value 0x77.

Data order

FS-20/30/100/200FS-50/70/300/500FX-1FX-10/20
Bit# (FS-20/100)Bit# (FS-30/200) Panel Section IC Control Type Notes
0 PN3 Preset Board IC2 (FS-30/200)
1 On Button+LED (FS-30/200)
2 Record Button (FS-30/200)
3 Blank Button (FS-30/200)
4 IC3 End Button (FS-30/200)
5 Back Button (FS-30/200)
6 Forward Button (FS-30/200)
7 Program Set Button (FS-30/200)
08 PN1 Break Variation IC9
19 3 Button+LED
210 2 Button+LED
311 1 Button+LED
412 Foot Switch IC8
513 Break Vari. Button+LED
614 Rhythm Stop Button+LED
715 Glide Button+LED
816 IC7
917
1018 Start Button+LED
1119 Synchro Start Button+LED
12..1520..23 (Misc.) IC6 Manual Balance Slider
1624 Effect: Symphonic IC5 Upper Combi./Orches. Button+LED
1725 Lower Combi./Orches. Button+LED
1826 Effect: Tremolo Upper Combi./Orches. Button+LED
1927 Lower Combi./Orches. Button+LED
2028 Effect IC4 Tremolo Button+LED
2129 Chorus Button+LED
2230 Symphonic Button+LED
2331 Celeste Button+LED
24..2732..35 Vibrato IC3 Speed Slider MSb first
28..3136..39 IC2 Depth Slider MSb first
32..3540..43 IC1 Delay Slider MSb first
36..3944..47 CP6 Pedals: Custom Voices IC8 Volume Slider
4048 IC7 Electric Bass 3 Button+LED
4149 Contra Bass 2 Button+LED
4250 Electric Bass 2 Button+LED
4351 Contra Bass 1 Button+LED
4452 IC6 Electric Bass 1 Button+LED
4553 Bass 2 Button+LED
4654 Tuba Button+LED
4755 Bass 1 Button+LED
4856 Registration Memory IC5 C. Button+LED
4957 Memory 5 Button+LED
5058 Preset 4 Button+LED
5159 Memory 4 Button+LED
5260 IC4 Preset 3 Button+LED
5361 Memory 3 Button+LED
5462 Preset 2 Button+LED
5563 Memory 2 Button+LED
5664 IC3 Preset 1 Button+LED
5765 Memory 1 Button+LED
5866 D. Button+LED
5967 M. Button+LED
6068 Ensemble IC2
6169
6270 Lower Custom Button+LED
6371 Upper Custom Button+LED
6472 IC1 Lower Special Button+LED
6573 Upper Special Button+LED
6674 Lower Combi./Orch. Button+LED
6775 Upper Combi./Orch. Button+LED
68..71 CP5 Lower Keyboard: Special Presets IC9 Volume Slider (FS-20/100)
72 IC8 Touch Tone Slider
73 Solid Guitar Button+LED
74 Rhythmic Chord Button+LED
75 Jazz Guitar Button+LED
76 IC7 Phaser Button+LED
77 Harps. Button+LED
78
79
80 IC6 Brass Button+LED
81 Electric Piano Button+LED
82 Stri. Button+LED
83 Piano Button+LED
76..79 IC10 Volume Slider (FS-30/200)
80 IC9 Touch Tone Slider
81 Jazz Guitar Button+LED
82 Rhythmic Chord Button+LED
83 Acous. Guitar Button+LED
84 IC8 Phaser Button+LED
85 Harp Button+LED
86 Brass Button+LED
87 Harps. Button+LED
88 IC7 Strings Button+LED
89 Electric Piano Button+LED
90 Solid Guitar Button+LED
91 Piano Button+LED
84..87 Lower Keyboard: Orchestra IC5 Volume Slider (FS-20/100)
88 IC4
89
90 Touch Tone Button+LED
91 Brass 2 Button+LED
92 IC3 Preset Vibrato Button+LED
93 Brass 1 Button+LED
94 Vocal Button+LED
95 Stri. 2 Button+LED
96 IC2 Reed Button+LED
97 Stri. 1 Button+LED
92..95 IC6 Volume Slider (FS-30/200)
96 IC5
97
98 Touch Tone Button+LED
99 Reed Button+LED
100 IC4 Preset Vibrato Button+LED
101 Brass 2 Button+LED
102 Cosmic Button+LED
103 Brass 1 Button+LED
104 IC3 Vocal 2 Button+LED
105 Stri. 2 Button+LED
106 Vocal 1 Button+LED
107 Stri. 1 Button+LED
98 Lower Keyboard: Combination IC2 Preset 6 Button+LED (FS-20/100)
99 Preset 3 Button+LED
100 IC1 Preset 5 Button+LED
101 Preset 2 Button+LED
102 Preset 4 Button+LED
103 Preset 1 Button+LED
108 IC2 Preset 4 Button+LED (FS-30/200)
109 Memo. 3 Button+LED
110 Preset 3 Button+LED
111 Memo. 2 Button+LED
112 IC1 Preset 2 Button+LED
113 Memo. 1 Button+LED
114 Preset 1 Button+LED
115 Combi. Lever Button+LED
104..110116..122 TEM Tempo IC6 Tempo dial counter Encoder LSb first
111123 Tempo dial direction Encoder
112..119124..131 IC3 LED display 7-segment driver Assuming
8 bits
control data
120132 CP3 Auto bass chord IC12 Pedal Memo. Button+LED
121133 Lower Memo. Button+LED
122134 Multi Bass 3 Button+LED
123135 Custom A.B.C. Button+LED
124136 IC11 Multi Bass 2 Button+LED
125137 Fingered Chord Button+LED
126138 Multi Bass 1 Button+LED
127139 Single Fing. Chord Button+LED
128140 IC10 Multi Bass Norm. Button+LED
129141 Norm. Button+LED
130142
131143
132..135144..147 Auto Arpeggio IC9 Volume Slider
136148 IC8 Harp Button+LED
137149 Harps. Button+LED
138150 Piano Button+LED
139151 Stri. Button+LED
140152 IC7 8 Button+LED
141153 4 Button+LED
142154 7 Button+LED
143155 3 Button+LED
144156 IC6 6 Button+LED
145157 2 Button+LED
146158 5 Button+LED
147159 1 Button+LED
148..151160..163 Upper/Lower Custom Voices IC5 Volume Slider
152164 IC4
153165
154166 Touch Tone Button+LED
155167 Violin Button+LED
156168 IC3 Touch Vibr. Button+LED
157169 Trombone Button+LED
158170 Preset Vibr. Button+LED
159171 Trumpet Button+LED
160172 IC2 Vibr. Lever Button+LED
161173 Saxophone Button+LED
162174 Cosmic 2 Button+LED
163175 Clarinet Button+LED
164176 IC1 Cosmic 1 Button+LED
165177 Oboe Button+LED
166178 Jazz Guitar Button+LED
167179 Flute Button+LED
168..171180..183 CP2 Upper Keyboard: Special Presets FS-20/100: IC9
FS-30/200: IC10
Volume Slider
172184 FS-20/100: IC8
FS-30/200: IC9
Touch Tone Button+LED
173185 Banjo Button+LED
174186 Cosmic Button+LED
175187 Mandolin Button+LED
176188 FS-20/100: IC7
FS-30/200: IC8
Brass 2 Button+LED
177189 Marimba Button+LED
178190 Brass 1 Button+LED
179191 Vibraphone Button+LED
180192 FS-20/100: IC6
FS-30/200: IC7
Stri. Button+LED
181193 Harps. Button+LED
182194 Jazz Guitar Button+LED
183195 Piano Button+LED
184..187 Upper Keyboard: Orchestra IC5 Volume Slider (FS-20/100)
188 IC4 Touch Tone Button+LED
189 Brass 2 Button+LED
190 Preset Vibr. Button+LED
191 Brass 1 Button+LED
192 IC3 Reed 2 Button+LED
193 Stri. 2 Button+LED
194 Reed 1 Button+LED
195 Stri. 1 Button+LED
196..199 IC6 Volume Slider (FS-30/200)
200 IC5 Touch Tone Button+LED
201 Brass 2 Button+LED
202 Preset Vibr. Button+LED
203 Brass 1 Button+LED
204 IC4 Vocal Button+LED
205 Stri. 3 Button+LED
206 Reed 2 Button+LED
207 Stri. 2 Button+LED
208 IC3 Reed 1 Button+LED
209 Stri. 1 Button+LED
196 Upper Keyboard: Combination IC2 Preset 8 Button+LED (FS-20/100)
197 Preset 4 Button+LED
198 Preset 7 Button+LED
199 Preset 3 Button+LED
200 IC1 Preset 6 Button+LED
201 Preset 2 Button+LED
202 Preset 5 Button+LED
203 Preset 1 Button+LED
210 IC2 Preset 4 Button+LED (FS-30/200)
211 Memo. 3 Button+LED
212 IC2 Preset 3 Button+LED
213 Memo. 2 Button+LED
214 Preset 2 Button+LED
215 Memo. 1 Button+LED
216 IC1
217
218 Preset 1 Button+LED
219 Combi. Lever Button+LED
204220 CP1 Auto Rhythm IC5 4 Button+LED
205221 2 Button+LED
206222 3 Button+LED
207223 1 Button+LED
208224 IC4 16 Beat Button+LED
209225 8 Beat 2 Button+LED
210226 Disco Button+LED
211227 8 Beat 1 Button+LED
212228 IC3 Latin Rock Button+LED
213229 Slow Rock Button+LED
214230 Samba Button+LED
215231 Bounc. Button+LED
216232 IC2 Bossa-Nova Button+LED
217233 Swing Button+LED
218234 Latin 2 Button+LED
219235 Ballad Button+LED
220236 IC1 Latin 1 Button+LED
221237 Waltz Button+LED
222238 Tango Button+LED
223239 March Button+LED
224..227240..243 CP4 IC3 Volume Slider
228..231244..247 Balance Slider
232 IC2 16 Bar Button+LED (FS-20/100)
233 4 Bar Button+LED
234 8 Bar Button+LED
235 Norm Button+LED
236 IC1
237
238
239
248 IC2 Pro. 4 Button+LED (FS-30/200)
249 16 Bar Button+LED
250 Pro. 3 Button+LED
251 8 Bar Button+LED
252 IC1 Pro. 2 Button+LED
253 4 Bar Button+LED
254 Pro. 1 Button+LED
255 Norm Button+LED
240256 PN4 Knee Lever IC6 Lower Sustain Button+LED
241257 Upper Sustain Button+LED
242258 Play Assist Button+LED
243259 Response Fast Combi. Button+LED
244260 Play Assist IC5 Upper Special Button+LED
245261 Melo. on Chord 2 Button+LED
246262 Upper Combi./Orches. Button+LED
247263 Melo. on Chord 1 Button+LED
248264 IC4 Key Set Button+LED
249265 Counter Melo. Button+LED
250266 Volume Soft Button+LED
251267 Duet Button+LED
252..255268..271 Sustain IC5 Upper Slider
256..259272..275 IC4 Lower Slider
260..263276..279 IC3 Pedal Slider
Bit# (FS-50/300)Bit# (FS-70/500) Panel Section IC Control Type Notes
00 DRE (Internal, misc.) IC2 Pedal dynamic range control Out
11 Knee switch In
22 Foot switch In
33 Celeste control Out
44 Tone cabinet Orchestra control Out
55 Tone cabinet Combination control Out
66 Chorus control Out
77 Tremolo control Out
88 IC1
99
1010 Registration pack write protect In
1111 Phasor RC II control Out
1212 Registration pack present In
1313 Phasor RC I control Out
1414
1515 Slider motor control Out
1616 PN4 Vibrato IC9 Preset Button+LED
1717 Player Button+LED
1818 Lever Button+LED
1919 Set Button
2020 IC8 Memory ready LED
2121 Error LED
2222
2323 Pedals LED
2424 FS-50/300: –
FS-70/500: Lower
LED
2525 FS-50/300: Lower
FS-70/500: U./L.
LED
2626 FS-50/300: U./L.
FS-70/500: Upper
LED
2727 FS-50/300: Upper
FS-70/500: Solo
LED
2828 Registration pack IC7 Write Button+LED
2929 Confirm Button+LED
3030 Read Button+LED
3131
3232 Vibrato IC6
33..3533..35 Speed Lever MSb first
3636 IC5
37..3937..39 Depth Lever MSb first
4040 IC4
41..4341..43 Delay Lever MSb first
4444 IC3
45..4745..47 Touch Depth Lever MSb first
4848 Play Assist IC2 Key Set Button+LED
4949 Counter Melo. Button+LED
5050 Upper Special Button+LED
5151 Duet Button+LED
5252 IC1 Upper Orch. Button+LED
5353 Melo. on Chord 2 Button+LED
5454 Upper Combi. Button+LED
5555 Melo. on Chord 1 Button+LED
5656 CPNN Auto bass chord IC3 Pedal Memo. Button+LED
5757 Lower Memo. Button+LED
5858 Multi Bass 3 Button+LED
5959 Custom A.B.C. Button+LED
6060 IC2 Multi Bass 2 Button+LED
6161 Fingered Chord Button+LED
6262 Multi Bass 1 Button+LED
6363 Single Fing. Chord Button+LED
6464 IC1 Multi Bass Norm. Button+LED
6565 Norm. Button+LED
6666
6767
68..7168..71 DM5 Sustain IC5 Pedal Slider
72..7572..75 IC4 Lower Slider
76..7976..79 IC3 Upper Slider
8080 CPNM IC1 Pedal Sus. Button+LED
8181 Play Assis. (Knee) Button+LED
8282 Lower Sus. (Knee) Button+LED
8383 Upper Sus. (Knee) Button+LED
84..8784..87 DM5 Pedals: Custom voices IC2 Volume Slider
88..9188..91 IC1 Brilliance Slider
9292 CPNL IC2 Cosmic Button+LED
9393 Tuba Button+LED
9494 Electric Bass 3 Button+LED
9595 Contra Bass 3 Button+LED
9696 IC1 Electric Bass 2 Button+LED
9797 Contra Bass 2 Button+LED
9898 Electric Bass 1 Button+LED
9999 Contra Bass 1 Button+LED
100..103100..103 DM1H Pedals: Combination IC1 Volume Slider
104104 CPNK IC3 Preset 2 Button+LED
105105 Memo. Button+LED
106106 Preset 1 Button+LED
107107 Combi. Lever Button+LED
108108 Ensemble IC2 Lower Cust. Button+LED
109109 Upper Cust. Button+LED
110110 Lower Special Button+LED
111111 Upper Special Button+LED
112112 IC1 Lower Orch. Button+LED
113113 Upper Orch. Button+LED
114114 Lower Combi. Button+LED
115115 Upper Combi. Button+LED
116..119116..119 DM1G Lower Keyboard: Special Presets IC1 Volume Slider
120120 CPNJ IC3 Touch Tone Button+LED
121121 Acous. Guitar Button+LED
122122 Cosmic Button+LED
123123 Harp Button+LED
124124 IC2 Brass 2 Button+LED
125125 Harps. Button+LED
126126 Brass 1 Button+LED
127127 Electric Piano Button+LED
128128 IC1 Jazz Guitar Button+LED
129129 Piano Button+LED
130130    
131131    
132..135132..135 DM1F Lower Keyboard: Orchestra IC1 Volume Slider
136136 CPNI IC3 Touch Tone Button+LED
137137 Reed Button+LED
138138 Preset Vibr. Button+LED
139139 Brass 2 Button+LED
140140 IC2 Spice Button+LED
141141 Brass 1 Button+LED
142142 Vocal 2 Button+LED
143143 Stri. 2 Button+LED
144144 IC1 Vocal 1 Button+LED
145145 Stri. 1 Button+LED
146146
147147
148..151148..151 DM1E Lower Keyboard: Combination IC1 Volume Slider
152152 CPNH IC2 Preset 4 Button+LED
153153 Memo. 3 Button+LED
154154 Preset 3 Button+LED
155155 Memo. 2 Button+LED
156156 IC1 Preset 2 Button+LED
157157 Memo. 1 Button+LED
158158 Preset 1 Button+LED
159159 Combi. Lever Button+LED
160..167160..167 TEMP Tempo IC7 Tempo, 4th digit 7-segment+dot g-e-f-d-a-c-b-.
168..174168..174 IC6 Tempo, 3rd digit 7-segment g-e-f-d-a-c-b
175175
176..182176..182 IC5 Tempo, 2nd digit 7-segment g-e-f-d-a-c-b
183183
184..190184..190 IC4 Tempo, 1st digit 7-segment g-e-f-d-a-c-b
191191 Bar/Beat LED
192192 IC3 Tempo dial direction Encoder
193..199193..199 Tempo dial counter Encoder MSb first
200..203200..203 Auto Rhythm IC2 Volume Slider
204..207204..207 IC1 Balance Slider
208208 CPNG IC2 Pro. 4 Button+LED
209209 16 Bar Button+LED
210210 Pro. 3 Button+LED
211211 8 Bar Button+LED
212212 IC1 Pro. 2 Button+LED
213213 4 Bar Button+LED
214214 Pro. 1 Button+LED
215215 Norm Button+LED
216..219216..219 DM3 Rhythmic Chord 2 IC3 Volume Slider
220220 CPNF2 IC1 Phase Button+LED
221221 Jazz Guitar Button+LED
222222 Solid Guitar Button+LED
223223 Brass Button+LED
224..217224..227 DM3 Rhythmic Chord 1 IC2 Volume Slider
228228 CPNF IC1 Phase Button+LED
229229 Jazz Guitar Button+LED
230230 Solid Guitar Button+LED
231231 Piano Button+LED
232..235232..235 DM3 Auto Arpeggio IC1 Volume Slider
236236 CPNE IC3 Harp Button+LED
237237 Harps. Button+LED
238238 Stri. Button+LED
239239 Piano Button+LED
240240 IC2 8 Button+LED
241241 4 Button+LED
242242 7 Button+LED
243243 3 Button+LED
244244 IC1 6 Button+LED
245245 2 Button+LED
246246 5 Button+LED
247247 1 Button+LED
248..251248..251 DM1D Upper/Lower Custom Voices IC1 Volume Slider
252252 CPND IC4 Touch Tone Button+LED
253253 Violin Button+LED
254254 Touch Vibr. Button+LED
255255 Trombone Button+LED
256256 IC3 Preset Vibr. Button+LED
257257 Trumpet Button+LED
258258 Cosmic 3 Button+LED
259259 Saxophone Button+LED
260260 IC2 Cosmic 2 Button+LED
261261 Clarinet Button+LED
262262 Cosmic 1 Button+LED
263263 Oboe Button+LED
264264 IC1 Jazz Guitar Button+LED
265265 Flute Button+LED
266266
267267
268..271268..271 DM1C Upper Keyboard Special Presets IC1 Volume Slider
272272 CPNC IC3 Touch Tone Button+LED
273273 Mand. Button+LED
274274 Cosmic Button+LED
275275 Marimba Button+LED
276276 IC2 Brass 2 Button+LED
277277 Vibraphone Button+LED
278278 Brass 1 Button+LED
279279 Celeste Button+LED
280280 IC1 Jazz Guitar Button+LED
281281 Harps. Button+LED
282282 Banjo Button+LED
283283 Piano Button+LED
284..287284..287 DM1B Upper Keyboard Orchestra IC1 Volume Slider
288288 CPNB IC3 Touch Tone Button+LED
289289 Reed 1 Button+LED
290290 Preset Vibr. Button+LED
291291 Brass 2 Button+LED
292292 IC2 Spice 2 Button+LED
293293 Brass 1 Button+LED
294294 Spice 1 Button+LED
295295 Stri. 3 Button+LED
296296 IC1 Vocal Button+LED
297297 Stri. 2 Button+LED
298298 Reed 2 Button+LED
299299 Stri. 1 Button+LED
300..303300..303 DM1A Upper Keyboard Combination IC1 Volume Slider
304304 CPNA IC7 Preset 4 Button+LED
305305 Memo. 3 Button+LED
306306 Preset 3 Button+LED
307307 Memo. 2 Button+LED
308308 IC6 Preset 2 Button+LED
309309 Memo. 1 Button+LED
310310 Preset 1 Button+LED
311311 Combi. Lever Button+LED
312312 Auto Rhythm IC5 4 Button+LED
313313 2 Button+LED
314314 3 Button+LED
315315 1 Button+LED
316316 IC4 16 Beat Button+LED
317317 8 Beat 2 Button+LED
318318 Disco Button+LED
319319 8 Beat 1 Button+LED
320320 IC3 Latin Rock Button+LED
321321 Slow Rock Button+LED
322322 Samba Button+LED
323323 Bounc. Button+LED
324324 IC2 Bossa-Nova Button+LED
325325 Swing Button+LED
326326 Latin 2 Button+LED
327327 Ballad Button+LED
328328 IC1 Latin 1 Button+LED
329329 Waltz Button+LED
330330 Tango Button+LED
331331 March Button+LED
332..335 DM3S Solo Keyboard IC3 Slide Control Slider (FS-70/500)
336..339 IC2 Volume Slider (FS-70/500)
340..343 IC1 Brilliance Slider (FS-70/500)
344 PNS3 IC6 Touch Tone Button+LED (FS-70/500)
345 Up Button+LED (FS-70/500)
346 Touch Vibr. Button+LED (FS-70/500)
347 Norm Button+LED (FS-70/500)
348 IC5 Preset Vibr. Button+LED (FS-70/500)
349 Down Button+LED (FS-70/500)
350 Cosmic 2 Button+LED (FS-70/500)
351 Trumpet 2 Button+LED (FS-70/500)
352 IC4 Cosmic 1 Button+LED (FS-70/500)
353 Trumpet 1 Button+LED (FS-70/500)
354 Harmonica Button+LED (FS-70/500)
355 Saxophone Button+LED (FS-70/500)
356 IC3 Jazz Guitar Button+LED (FS-70/500)
357 Clarinet Button+LED (FS-70/500)
358 Violin Button+LED (FS-70/500)
359 Oboe Button+LED (FS-70/500)
360 IC2 Trombone Button+LED (FS-70/500)
361 Flute Button+LED (FS-70/500)
362 Horn Button+LED (FS-70/500)
363 Piccolo Button+LED (FS-70/500)
364 IC1 (FS-70/500)
365 (FS-70/500)
366 Solo to Upper Button+LED (FS-70/500)
367 (FS-70/500)
368..371 DM1I IC1 Detune Slider (FS-70/500)
332372 PN1 Break Variation IC6 3 Button+LED
333373 2 Button+LED
334374 1 Button+LED
335375
336376 (Rhythm control) IC5 Break Button+LED
337377 Start Button+LED
338378 Synchro Start Button+LED
339379
340380 Foot Switch IC4 Break Vari. Button+LED
341381 Rhythm Stop Button+LED
342382 Glide Button+LED
343383 (Misc.) Slider Drive Toggle switch
344..347384..387 IC1 Manual Balance Slider
348388 Effect: Tremolo IC3 Lower Orches. Button+LED
349389 Upper Orches. Button+LED
350390 Lower Combi. Button+LED
351391 Upper Combi. Button+LED
352392 Effect: Symphonic IC2 Lower Orches. Button+LED
353393 Upper Orches. Button+LED
354394 Lower Combi. Button+LED
355395 Upper Combi. Button+LED
356396 Effect IC1 Tremolo Button+LED
357397 Symphonic Button+LED
358398 Chorus Button+LED
359399 Celeste Button+LED
360400 PSW (Preset panel) IC5 8 Button+LED
361401 7 Button+LED
362402 6 Button+LED
363403 5 Button+LED
364404 IC2 4 Button+LED
365405 3 Button+LED
366406 2 Button+LED
367407 1 Button+LED
368408 IC1 R Button+LED
369409 D Button+LED
370410 C Button+LED
371411 M Button+LED
372412 PN3 Preset board IC2
373413
374414
375415 Forward Button
376416 Back Button
377417 End Button
378418 Blank Button
379419 Record Button
380420 IC1 On Button+LED
381421 Timbre Vari. Button+LED
382422 Response Fast Button+LED
383423 Program Set Button
Bit# Panel Section IC Control Type Notes
0 DRE (Internal, misc.) IC2 Slider motor control Out
1 Knee switch In
2 Foot switch In
3 Celeste control Out
4 Tone cabinet Orchestra control Out
5 Tane cabinet Combination control Out
6 Chorus control Out
7 Tremolo control Out
8 IC1 Solo dynamic range control Out
9 Lower dynamic range control Out
10 Upper dynamic range control Out
11 Pedal dynamic range control Out
12 Phasor RC II control Out
13 Phasor RC I control Out
14 Registration pack write protect In
15 Registration pack present In
16 PN4 Vibrato IC7 Preset Button+LED
17 Player Button+LED
18 Slider Button+LED
19 Set Button+LED
20 Registration pack IC6 Memory ready LED
21 Error LED
22
23 Vibrato Pedal LED
24 Lower orchestra LED
25 Upper/lower custom voices LED
26 Upper orchestra LED
27 Solo LED
28 Registration pack IC5 Write Button+LED
29 Confirm Button+LED
30 Read Button+LED
31
32 Vibrato IC4
33..35 Speed Lever MSb first
36 IC3
37..39 Depth Lever MSb first
40 IC2
41..43 Delay Lever MSb first
44 IC1
45..47 Touch Depth Lever MSb first
48 CPNN Auto bass chord IC2 Multi Bass 3 Button+LED
49 Pedal Memo. Button+LED
50 Multi Bass 2 Button+LED
51 Lower Memo. Button+LED
52 IC1 Multi Bass 1 Button+LED
53 Custom A.B.C. Button+LED
54 Multi Bass Norm. Button+LED
55 Norm. Button+LED
56..59 DM5 Sustain IC5 Pedal Slider
60..63 IC4 Lower Slider
64..67 IC3 Upper Slider
68 CPNM IC1 Pedal Sus. Button+LED
69
70 Lower Sus. (Knee) Button+LED
71 Upper Sus. (Knee) Button+LED
72..75 DM5 Pedals: Custom voices IC2 Volume Slider
76..79 IC1 Brilliance Slider
80 CPNL IC3 Cosmic Button+LED
81 Tuba Button+LED
82 Vocal Button+LED
83 Contra Bass 4 Button+LED
84 IC2 Electric Bass 3 Button+LED
85 Contra Bass 3 Button+LED
86 Electric Bass 2 Button+LED
87 Contra Bass 2 Button+LED
88 IC1 Electric Bass 1 Button+LED
89 Contra Bass 1 Button+LED
90
91
92..95 DM1H Pedals: Combination IC1 Volume Slider
96 CPNK IC4 Preset 2 Button+LED
97 Memo. Button+LED
98 Preset 1 Button+LED
99 Combi. Lever Button+LED
100 Ensemble IC3 Lower Cust. Button+LED
101 Upper Cust. Button+LED
102 Lower Special Button+LED
103 Upper Special Button+LED
104 IC2 Lower Orch. Button+LED
105 Upper Orch. Button+LED
106 Lower Combi. Button+LED
107 Upper Combi. Button+LED
108 IC1 Upper to Lower Button+LED
109 Lower to Upper Button+LED
110
111
112..115 DM1G Lower Keyboard: Special Presets IC1 Volume Slider
116 CPNJ IC3 Touch Tone Button+LED
117 Jazz Guitar Button+LED
118 Cosmic 3 Button+LED
119 Acous. Guitar Button+LED
120 IC2 Cosmic 2 Button+LED
121 Harp Button+LED
122 Cosmic 1 Button+LED
123 Harps. Button+LED
124 IC1 Brass 2 Button+LED
125 Electric Piano Button+LED
126 Brass 1 Button+LED
127 Piano Button+LED
128..131 DM1F Lower Keyboard: Orchestra IC1 Volume Slider
132 CPNI IC4 Touch Tone Button+LED
133 Reed Button+LED
134 Preset Vibr. Button+LED
135 Brass 3 Button+LED
136 IC3 Cosmic Button+LED
137 Brass 2 Button+LED
138 Spice 2 Button+LED
139 Brass 1 Button+LED
140 IC2 Spice 1 Button+LED
141 Stri. 3 Button+LED
142 Vocal 2 Button+LED
143 Stri. 2 Button+LED
144 IC1 Vocal 1 Button+LED
145 Stri. 1 Button+LED
146
147
148..151 DM1E Lower Keyboard: Combination IC1 Volume Slider
152 CPNH IC2 Preset 4 Button+LED
153 Memo. 3 Button+LED
154 Preset 3 Button+LED
155 Memo. 2 Button+LED
156 IC1 Preset 2 Button+LED
157 Memo. 1 Button+LED
158 Preset 1 Button+LED
159 Combi. Lever Button+LED
160..167 TEMP Tempo IC7 Tempo, 4th digit 7-segment+dot g-e-f-d-a-c-b-.
168..174 IC6 Tempo, 3rd digit 7-segment g-e-f-d-a-c-b
175
176..182 IC5 Tempo, 2nd digit 7-segment g-e-f-d-a-c-b
183
184..190 IC4 Tempo, 1st digit 7-segment g-e-f-d-a-c-b
191 Beat LED LED
192 IC3 Tempo dial direction Encoder
193..199 Tempo dial counter Encoder MSb first
200..203 Auto Rhythm IC2 Volume Slider
204..207 IC1 Balance Slider
208 CPNG IC2 Pro. 4 Button+LED
209 16 Bar Button+LED
210 Pro. 3 Button+LED
211 8 Bar Button+LED
212 IC1 Pro. 2 Button+LED
213 4 Bar Button+LED
214 Pro. 1 Button+LED
215 Norm Button+LED
216..219 DM3 Rhythmic Chord 2 IC3 Volume Slider
220 CPNF2 IC1 Phase Button+LED
221 Jazz Guitar Button+LED
222 Solid Guitar Button+LED
223 Brass Button+LED
224..227 DM3 Rhythmic Chord 1 IC2 Volume Slider
228 CPNF IC1 Phase Button+LED
229 Jazz Guitar Button+LED
230 Solid Guitar Button+LED
231 Piano Button+LED
232..235 DM3 Auto Arpeggio IC1 Volume Slider
236 CPNE IC3 Harp Button+LED
237 Harps. Button+LED
238 Stri. Button+LED
239 Piano Button+LED
240 IC2 8 Button+LED
241 4 Button+LED
242 7 Button+LED
243 3 Button+LED
244 IC1 6 Button+LED
245 2 Button+LED
246 5 Button+LED
247 1 Button+LED
248..251 DM1D Upper/Lower Custom Voices IC1 Volume Slider
252 CPND IC5 Touch Tone Button+LED
253 Hawai. Guitar Button+LED
254 Touch Vibr. Button+LED
255 Jazz Guitar Button+LED
256 IC4 Preset Vibr. Button+LED
257 Violin Button+LED
258 Cosmic 4 Button+LED
259 Trombone Button+LED
260 IC3 Cosmic 3 Button+LED
261 Trumpet Button+LED
262 Cosmic 2 Button+LED
263 Saxophone Button+LED
264 IC2 Cosmic 1 Button+LED
265 Clarinet Button+LED
266 Vocal Button+LED
267 Oboe Button+LED
268 IC1 Bass Guitar Button+LED
269 Flute Button+LED
270
271
272..275 DM1C Upper Keyboard Special Presets IC1 Volume Slider
276 CPNC IC3 Touch Tone Button+LED
277 Mand. Button+LED
278 Cosmic Button+LED
279 Marimba Button+LED
280 IC2 Brass 2 Button+LED
281 Vibraphone Button+LED
282 Brass 1 Button+LED
283 Celeste Button+LED
284 IC1 Jazz Guitar Button+LED
285 Harps. Button+LED
286 Banjo Button+LED
287 Piano Button+LED
288..291 DM1B Upper Keyboard Orchestra IC1 Volume Slider
292 CPNB IC4 Touch Tone Button+LED
293 Brass 3 Button+LED
294 Preset Vibr. Button+LED
295 Brass 2 Button+LED
296 IC3 Spice 2 Button+LED
297 Brass 1 Button+LED
298 Spice 1 Button+LED
299 Stri. 4 Button+LED
300 IC2 Vocal 1 Button+LED
301 Stri. 3 Button+LED
302 Reed 2 Button+LED
303 Stri. 2 Button+LED
304 IC1 Reed 1 Button+LED
305 Stri. 1 Button+LED
306
307
308..311 DM1A Upper Keyboard Combination IC1 Volume Slider
312 CPNA IC7 Preset 4 Button+LED
313 Memo. 3 Button+LED
314 Preset 3 Button+LED
315 Memo. 2 Button+LED
316 IC6 Preset 2 Button+LED
317 Memo. 1 Button+LED
318 Preset 1 Button+LED
319 Combi. Lever Button+LED
320 Auto Rhythm IC5 4 Button+LED
321 2 Button+LED
322 3 Button+LED
323 1 Button+LED
324 IC4 16 Beat Button+LED
325 8 Beat 2 Button+LED
326 Disco Button+LED
327 8 Beat 1 Button+LED
328 IC3 Latin Rock Button+LED
329 Slow Rock Button+LED
330 Samba Button+LED
331 Bounc. Button+LED
332 IC2 Bossa-Nova Button+LED
333 Swing Button+LED
334 Latin 2 Button+LED
335 Ballad Button+LED
336 IC1 Latin 1 Button+LED
337 Waltz Button+LED
338 Tango Button+LED
339 March Button+LED
340..343 DM3S Solo Keyboard IC3 Slide Control Slider
344..347 IC2 Volume Slider
348..351 IC1 Brilliance Slider
352 PNS IC6 Touch Tone Button+LED
353 Up Button+LED
354 Touch Vibr. Button+LED
355 Norm Button+LED
356 IC5 Preset Vibr. Button+LED
357 Down Button+LED
358 Cosmic 2 Button+LED
359 Horn Button+LED
360 IC4 Cosmic 1 Button+LED
361 Trumpet 2 Button+LED
362 Vocal Button+LED
363 Trumpet 1 Button+LED
364 IC3 Harmonica Button+LED
365 Saxophone Button+LED
366 Jazz Guitar Button+LED
367 Clarinet Button+LED
368 IC2 Cello Button+LED
369 Oboe Button+LED
370 Violin Button+LED
371 Flute Button+LED
372 IC1 Trombone Button+LED
373 Piccolo Button+LED
374
375 Solo to Upper Button+LED
376..379 DM1P IC1 Detune Slider
380 PN1 Break Variation IC3 3 Button+LED
381 2 Button+LED
382 1 Button+LED
383
384 (Rhythm control) IC2 Break Button+LED
385 Start Button+LED
386 Synchro Start Button+LED
387
388 Foot Switch IC2 Break Vari. Button+LED
389 Rhythm Stop Button+LED
390 Glide Button+LED
391 (Misc.) Slider Drive Toggle switch
392..395 DM2P IC2 Manual Balance Slider
396..399 IC1 Reverb Slider
400 PN3 Effect: Symphonic IC3 Lower Orches. Button+LED
401 Upper Orches. Button+LED
402 Lower Combi. Button+LED
403 Upper Combi. Button+LED
404 Effect: Tremolo IC2 Lower Orches. Button+LED
405 Upper Orches. Button+LED
406 Lower Combi. Button+LED
407 Upper Combi. Button+LED
408 Effect IC1 Tremolo Button+LED
409 Chorus Button+LED
410 Symphonic Button+LED
411 Celeste Button+LED
412 PSW Preset panel IC8 Pedal dynamic range control Button+LED
413 Lower dynamic range control Button+LED
414 Upper dynamic range control Button+LED
415 Solo dynamic range control Button+LED
416 IC5 8 Button+LED
417 7 Button+LED
418 6 Button+LED
419 5 Button+LED
420 IC2 4 Button+LED
421 3 Button+LED
422 2 Button+LED
423 1 Button+LED
424 IC1 R Button+LED
425 D Button+LED
426 C Button+LED
427 M Button+LED
428 PN3 Preset board IC2
429
430
431 Forward Button
432 Back Button
433 End Button
434 Blank Button
435 Record Button
436 IC1 On Button+LED
437 Timbre Vari. Button+LED
438 Response Fast Button+LED
439 Program Set Button
Bit# (FX-10)Bit# (FX-20) Panel Section IC Control Type Notes
00 DRE (Internal, misc.) IC2 Pedal dynamic range control Out
11 Knee switch In
22 Foot switch In
33 Celeste control Out
44 Tone cabinet Orchestra control Out
55 Tone cabinet Combination control Out
66 Chorus control Out
77 Tremolo control Out
88 IC1
99
1010 Registration pack write protect In
1111 Phasor RC II control Out
1212 Registration pack present In
1313 Phasor RC I control Out
1414
1515 Slider motor control Out
1616 PN41 Registration pack IC2
1717 Write Button+LED
1818 Confirm Button+LED
1919 Read Button+LED
2020 IC1
2121 Memory ready LED
2222 Error LED
2323
2424 CPNN Auto bass chord IC3 Pedal Memo. Button+LED
2525 Lower Memo. Button+LED
2626 Multi Bass 3 Button+LED
2727 Custom A.B.C. Button+LED
2828 IC2 Multi Bass 2 Button+LED
2929 Fingered Chord Button+LED
3030 Multi Bass 1 Button+LED
3131 Single Fing. Chord Button+LED
3232 IC1 Multi Bass Norm. Button+LED
3333 Norm. Button+LED
3434
3535
36..3936..39 DM5 Sustain IC5 Pedal Slider
40..4340..43 IC4 Lower Slider
44..4744..47 IC3 Upper Slider
4848 CPNM IC1 Pedal Sus. Button+LED
4949 Play Assis. Button+LED
5050 Lower Sus. (Knee) Button+LED
5151 Upper Sus. (Knee) Button+LED
52..5552..55 DM5 Pedals: Custom voices IC2 Volume Slider
56..5956..59 IC1 Brilliance Slider
6060 CPNL IC3 Cosmic Button+LED
6161 Tuba Button+LED
6262 Vocal Button+LED
6363 Contra Bass 4 Button+LED
6464 IC2 Electric Bass 3 Button+LED
6565 Contra Bass 3 Button+LED
6666 Electric Bass 2 Button+LED
6767 Contra Bass 2 Button+LED
6868 IC1 Electric Bass 1 Button+LED
6969 Contra Bass 1 Button+LED
7070
7171
72..7572..75 DM1H Pedals: Combination IC1 Volume Slider
7676 CPNK IC3 Preset 2 Button+LED
7777 Memo. Button+LED
7878 Preset 1 Button+LED
7979 Combi. Lever Button+LED
8080 Ensemble IC2 Lower Cust. Button+LED
8181 Upper Cust. Button+LED
8282 Lower Special Button+LED
8383 Upper Special Button+LED
8484 IC1 Lower Orch. Button+LED
8585 Upper Orch. Button+LED
8686 Lower Combi. Button+LED
8787 Upper Combi. Button+LED
88..9188..91 DM1G Lower Keyboard: Special Presets IC1 Volume Slider
9292 CPNJ IC3 Touch Tone Button+LED
9393 Jazz Guitar Button+LED
9494 Cosmic 3 Button+LED
9595 Acous. Guitar Button+LED
9696 IC2 Cosmic 2 Button+LED
9797 Harp Button+LED
9898 Cosmic 1 Button+LED
9999 Harps. Button+LED
100100 IC1 Brass 2 Button+LED
101101 Electric Piano Button+LED
102102 Brass 1 Button+LED
103103 Piano Button+LED
104..107104..107 DM1F Lower Keyboard: Orchestra IC1 Volume Slider
108108 CPNI IC4 Touch Tone Button+LED
109109 Reed Button+LED
110110 Preset Vibr. Button+LED
111111 Brass 3 Button+LED
112112 IC3 Cosmic Button+LED
113113 Brass 2 Button+LED
114114 Spice 2 Button+LED
115115 Brass 1 Button+LED
116116 IC2 Spice 1 Button+LED
117117 Stri. 3 Button+LED
118118 Vocal 2 Button+LED
119119 Stri. 2 Button+LED
120120 IC1 Vocal 1 Button+LED
121121 Stri. 1 Button+LED
122122
123123
124..127124..127 DM1E Lower Keyboard: Combination IC1 Volume Slider
128128 CPNH IC2 Preset 4 Button+LED
129129 Memo. 3 Button+LED
130130 Preset 3 Button+LED
131131 Memo. 2 Button+LED
132132 IC1 Preset 2 Button+LED
133133 Memo. 1 Button+LED
134134 Preset 1 Button+LED
135135 Combi. Lever Button+LED
136..143136..143 TEMP Tempo IC7 Tempo, 4th digit 7-segment+dot g-e-f-d-a-c-b-.
144..150144..150 IC6 Tempo, 3rd digit 7-segment g-e-f-d-a-c-b
151151
152..158152..158 IC5 Tempo, 2nd digit 7-segment g-e-f-d-a-c-b
159159
160..166160..166 IC4 Tempo, 1st digit 7-segment g-e-f-d-a-c-b
167167 Bar/Beat LED
168168 IC3 Tempo dial direction Encoder
169..175169..175 Tempo dial counter Encoder MSb first
176..179176..179 Auto Rhythm IC2 Volume Slider
180..183180..183 IC1 Balance Slider
184184 CPNG IC2 Pro. 4 Button+LED
185185 16 Bar Button+LED
186186 Pro. 3 Button+LED
187187 8 Bar Button+LED
188188 IC1 Pro. 2 Button+LED
189189 4 Bar Button+LED
190190 Pro. 1 Button+LED
191191 Norm Button+LED
192192 REL1/2 (Padding) IC1
193193
194194
195195
196196 SPR Play Assist IC2 Counter Melo. Button+LED
197197 Duet Button+LED
198198 Melo. on Chord 2 Button+LED
199199 Melo. on Chord 1 Button+LED
200200 IC1 Upper Special Button+LED
201201 Upper Orch. Button+LED
202202 Upper Combi. Button+LED
203203 Key Set Button+LED
204..207204..207 DM3 Rhythmic Chord 2 IC3 Volume Slider
208208 CPNF2 IC1 Phase Button+LED
209209 Jazz Guitar Button+LED
210210 Solid Guitar Button+LED
211211 Brass Button+LED
212..215212..215 DM3 Rhythmic Chord 1 IC2 Volume Slider
216216 CPNF IC1 Phase Button+LED
217217 Jazz Guitar Button+LED
218218 Solid Guitar Button+LED
219219 Piano Button+LED
220..223220..223 DM3 Auto Arpeggio IC2 Volume Slider
224224 CPNE IC3 Harp Button+LED
225225 Harps. Button+LED
226226 Stri. Button+LED
227227 Piano Button+LED
228228 IC2 8 Button+LED
229229 4 Button+LED
230230 7 Button+LED
231231 3 Button+LED
232232 IC1 6 Button+LED
233233 2 Button+LED
234234 5 Button+LED
235235 1 Button+LED
236..239236..239 DM1D Upper/Lower Custom Voices IC1 Volume Slider
240240 CPND IC5 Touch Tone Button+LED
241241 Hawai. Guitar Button+LED
242242 Touch Vibr. Button+LED
243243 Jazz Guitar Button+LED
244244 IC4 Preset Vibr. Button+LED
245245 Violin Button+LED
246246 Cosmic 4 Button+LED
247247 Trombone Button+LED
248248 IC3 Cosmic 3 Button+LED
249249 Trumpet Button+LED
250250 Cosmic 2 Button+LED
251251 Saxophone Button+LED
252252 IC2 Cosmic 1 Button+LED
253253 Clarinet Button+LED
254254 Vocal Button+LED
255255 Oboe Button+LED
256256 IC1 Bass Guitar Button+LED
257257 Flute Button+LED
258258
259259
260..263260..263 DM1C Upper Keyboard Special Presets IC1 Volume Slider
264264 CPNC IC3 Touch Tone Button+LED
265265 Mand. Button+LED
266266 Cosmic Button+LED
267267 Marimba Button+LED
268268 IC2 Brass 2 Button+LED
269269 Vibraphone Button+LED
270270 Brass 1 Button+LED
271271 Celeste Button+LED
272272 IC1 Jazz Guitar Button+LED
273273 Harps. Button+LED
274274 Banjo Button+LED
275275 Piano Button+LED
276..279276..279 DM1B Upper Keyboard Orchestra IC1 Volume Slider
280280 CPNB IC4 Touch Tone Button+LED
281281 Brass 3 Button+LED
282282 Preset Vibr. Button+LED
283283 Brass 2 Button+LED
284284 IC3 Spice 2 Button+LED
285285 Brass 1 Button+LED
286286 Spice 1 Button+LED
287287 Stri. 4 Button+LED
288288 IC2 Vocal 1 Button+LED
289289 Stri. 3 Button+LED
290290 Reed 2 Button+LED
291291 Stri. 2 Button+LED
292292 IC1 Reed 1 Button+LED
293293 Stri. 1 Button+LED
294294
295295
296..299296..299 DM1A Upper Keyboard Combination IC1 Volume Slider
300300 CPNA IC7 Preset 4 Button+LED
301301 Memo. 3 Button+LED
302302 Preset 3 Button+LED
303303 Memo. 2 Button+LED
304304 IC6 Preset 2 Button+LED
305305 Memo. 1 Button+LED
306306 Preset 1 Button+LED
307307 Combi. Lever Button+LED
308308 Auto Rhythm IC5 4 Button+LED
309309 2 Button+LED
310310 3 Button+LED
311311 1 Button+LED
312312 IC4 16 Beat Button+LED
313313 8 Beat 2 Button+LED
314314 Disco Button+LED
315315 8 Beat 1 Button+LED
316316 IC3 Latin Rock Button+LED
317317 Slow Rock Button+LED
318318 Samba Button+LED
319319 Bounc. Button+LED
320320 IC2 Bossa-Nova Button+LED
321321 Swing Button+LED
322322 Latin 2 Button+LED
323323 Ballad Button+LED
324324 IC1 Latin 1 Button+LED
325325 Waltz Button+LED
326326 Tango Button+LED
327327 March Button+LED
328..331 DM3S Solo Keyboard IC3 Slide Control Slider (FX-20)
332..335 IC2 Volume Slider (FX-20)
336..339 IC1 Brilliance Slider (FX-20)
340 PNS1 IC6 Touch Tone Button+LED (FX-20)
341 Up Button+LED (FX-20)
342 Touch Vibr. Button+LED (FX-20)
343 Norm Button+LED (FX-20)
344 IC5 Preset Vibr. Button+LED (FX-20)
345 Down Button+LED (FX-20)
346 Cosmic 2 Button+LED (FX-20)
347 Horn Button+LED (FX-20)
348 IC4 Cosmic 1 Button+LED (FX-20)
349 Trumpet 2 Button+LED (FX-20)
350 Vocal Button+LED (FX-20)
351 Trumpet 1 Button+LED (FX-20)
352 IC3 Harmonica Button+LED (FX-20)
353 Saxophone Button+LED (FX-20)
354 Jazz Guitar Button+LED (FX-20)
355 Clarinet Button+LED (FX-20)
356 IC2 Cello Button+LED (FX-20)
357 Oboe Button+LED (FX-20)
358 Violin Button+LED (FX-20)
359 Flute Button+LED (FX-20)
360 IC1 Trombone Button+LED (FX-20)
361 Piccolo Button+LED (FX-20)
362 (FX-20)
363 Solo to Upper Button+LED (FX-20)
364..367 DM1I IC1 Detune Slider (FX-20)
328368 PN11 Break Variation IC3 3 Button+LED
329369 2 Button+LED
330370 1 Button+LED
331371
332372 (Rhythm control) IC2 Break Button+LED
333373 Start Button+LED
334374 Synchro Start Button+LED
335375
336376 Foot Switch IC2 Break Vari. Button+LED
337377 Rhythm Stop Button+LED
338378 Glide Button+LED
339379 (Misc.) Slider Drive Toggle switch
340..343380..383 DM1J IC1 Manual Balance Slider
344384 PSW1 (Preset panel) IC8
345385
346386
347387 Pedal dynamic range control Button+LED
348388 IC5 8 Button+LED
349389 7 Button+LED
350390 6 Button+LED
351391 5 Button+LED
352392 IC2 4 Button+LED
353393 3 Button+LED
354394 2 Button+LED
355395 1 Button+LED
356396 IC1 R Button+LED
357397 D Button+LED
358398 C Button+LED
359399 M Button+LED
360400 PN31 Effect: Symphonic IC3 Lower Orches. Button+LED
361401 Upper Orches. Button+LED
362402 Lower Combi. Button+LED
363403 Upper Combi. Button+LED
364404 Effect: Tremolo IC2 Lower Orches. Button+LED
365405 Upper Orches. Button+LED
366406 Lower Combi. Button+LED
367407 Upper Combi. Button+LED
368408 Effect IC1 Tremolo Button+LED
369409 Symphonic Button+LED
370410 Chorus Button+LED
371411 Celeste Button+LED
372..375412..415 DM1K IC1 Reverb Slider
376416 PSB Preset board IC8
377417
378418
379419 Forward Button
380420 Back Button
381421 End Button
382422 Blank Button
383423 Record Button
384424 IC7 On Button+LED
385425 Timbre Vari. Button+LED
386426 Response Fast Button+LED
387427 Program Set Button
388428 IC6
389429
390430
391431 Pedals LED
392432 Lower LED
393433 U./L. LED
394434 Upper LED
395435 Solo LED
396436 IC5 Preset Button+LED
397437 Player Button+LED
398438 Lever Button+LED
399439 Set Button
400440 IC4
401..403441..443 Speed Lever MSb first
404444 IC3
405..407445..447 Depth Lever MSb first
408448 IC2
409..411449..451 Delay Lever MSb first
412452 IC1
413..415453..455 Touch Depth Lever MSb first

Model comparison

FS-20
FS-100
FS-30
FS-200
FS-50
FS-300
FS-70
FS-500
FX-1 FX-10 FX-20 Notes
Solo manual 3 octave 3 octave
Upper/lower manuals 4 octave 4 octave 4 octave 4 octave 5 octave 5 octave 5 octave
Pedals 1 octave 1 octave 1 octave 1 octave 2 octave 2 octave 2 octave The FX series, except for the FX-3, have full-length radiating pedals.
Buttons 167 186
30a: 190
214 235 247 229 252
Sliders 16+1 16+1 19+4+1 23+4+1 24+4 20+4 24+4
Drawbars 0 15 17 17 27 27 27
Control loop bits 264 (33 bytes)? 280 (35 bytes)? 384 (48 bytes)424 (53 bytes)440 (55 bytes)416 (52 bytes)456 (57 bytes)Does not include extra bits read by the controller.
Drawbar bytes 11 11 11 14 14 14 Does not include extra byte read by the controller.