Roland MKS-30 Operating and maintenance manual

SERVICE NOTES! First Edition
SPECIFICATIONS
MEMORY CAPACITY Internal: 64 patches
(16Kbyte RAM)
External: 64 patches
(M-16C memo-
ry cartridge)
EDITABLE PARAMETERS. ..32
OUTPUT Impedance: 5K12
Headphones: 8f2
POWER CONSUMPTION 35W
DIMENSIONS 480(W) x410(D) x88(H) mm
19"(W) X16-1/8“(D) X3-7/16"(H)
WEIGHT. 6.2 kg /131b. 11 oz.
ACCESSORIES Connection Cord (LP-25)
5pin DIN Cord
6pin DIN Cord
Detachable Cord Set
Memory Cartridge (M-16C)
Mask 'Ja-A •
(22245448)
Pot. 4f'Ja-A -
EVH84307-B15
(13219343)
Knob
(2247026100)
Switch
SSY-022
(13159149)
Knob
(22475325)
-7-seg LED
LB-202 VL
(15029416)
DISPLAY Window
LEDA/<-
(22025684)
Memory Cartridge Socket Ass'y
(Socket, PCB, Shell-
See lower right of this page)
6T-f-7XMf!«S
IILED II
GL-9PG2 Green
(15029135)
-Front Panel
7D> h•
(22215116)
^{Rolard ij»t-nfMCT-s
Jack
HLJ0605-01-010
(13449232)
Pot. #'Ja-A -
S3018P405-B15
(13339421)
Knob -y -7$
(22475329)
LED #
GL-9HD12Red
(15029152)
—Pot. 4f'Ja-A
S3018P4CC-B15
(13339444)
Knob
(22475329)
Switch V?-
SPQ-009G
(13129351)
Button
(2247559B) DIN Socket 6P
0\U'J*r-y h
TCS0269-01-0101
(13429627)
-Switch
SDG5P001
TV-5
(13129101)
Button
(2247024000)
Bottom Panel
»/)/<-
(22025246)
Switch K- X-r-yf-
HSW0372-01-530
(13159316)
Inlet ACOUvh
2P: PA-126 (13429710)
3P: CM-3 (13429708)
DIN Socket 5P
DINV^7 h
TCS5350-01-1111
(13429615)
Jack
HLJ0520-01-110
(13449125)
(22025246)
W
%

PARTS LIST
PANEL, CASING
22025244
22215116
22025246
22195470
22195472
22125521
22025684
22355334
Top Panel
Front Panel
Bottom Panel
Holder
Holder
Angle
Display Window
Rubber Foot
h"j
7P>h•
yy>MtiT >yJL'
LED^/<-
P'Aill
front
ffliifu side
rack mounting
KNOB, BUTTON 7i(^>
22475598
2247026100
22475329
2247024000
22475325
Button ^>
Knob -y V^
Knob "j -7 ^
Button
Knob y-7 i
Push
Rotary a-
9
')
Slider 7.y^ V
Push 'f'j'ya.
74 b- flight touch
TUNE
POWER
PROTECT
SWITCH
13159316
13159419
13129351
13129124
HSW0372-01-530
SSY-022
SPQ-009G
SDGA-3P
Slide y^yA Y
Slide yy'iY LEVEL
PROTECT
yA h•light touch
POWER
JACK. SOCKET vTyX. V-J- yS
13449232 HLJ0605-01-010 PHONES
13449125 HLJ0520-01-110 OUTPUT
13429627 TCS0269-01-0101 DIN 6P PROGRAMMER
13429615 TCS5350-01-1111 DIN 5P MIDI
13429710 AC Inlet PA-126 AC'f >u71100/117/220V
13429708 AC Inlet CM-3 AC'f >\yy h240V
7922412000 Memory Cartridge Socket Ass'y y^-ij -h*) :
Including the following: (TlS^f^O)
;y•)U ^
23425165 Socket PBRS-28U--TOl-S 'J ryh•
7933908000 PCB (pcb 22913414)
23425803 Shell (case)
POWER TRANSFORMER
22455355N0 lOOV
22455356C0 or 22455417C0 117V
22455357D0 or 22455418D0 220/240V
COIL zK;u
12449229 KF0B-160MH15 yi'y 'Vi)V9 Line Filter
12449221 40M-067-018 DCO Master OSC
CERAMIC RESONATOR
12389719 KMFC1007T31 12MHz
12389800 KMFC1005T1 6MHz
PCB ASS'Y
79339060
79339070
79339042
79339044
Main Board
Switch Board
Power Supply/Chorus Board MM/^
y
Power Supply/Chorus Board MM/'=^-y y>^^
(pcb 2291391601)
(pcb 22913939)
(pcb 22913940)
(pcb 22913940) 100/117V
220/240V
POTENTIOMETER
13219343
13339421
13339444
13299177
13299189
13299190
1C
EVH84307-B15
S3018P405-B15
S3018P4CC-B15
H0615C119-10KB
H0615C119-4.7KB
H0615C119-47KB
100KB TUNE
100KB VOLUME
Center Detent ^'y9-y^)yy 100KB 'BRILLIANCE
Trimmer
Trimmer
Trimmer
15179319 P8051-319 CPU
15179653 TMM2764 8K byte PROM
15179317 TC5517APL 2K byte CMOS RAM
15179110B0 M5L8253 programmable counter
15179192 M5L8041A universal peripheral interface
15169304H0 HD74LS04 hex inverter
15169307H0 HD74LS27 3input NOR gate
15169339H0 HD74LS32 quad 2input or gate
15169318H0 HD74LS138 3to 8demultiplexer
15169322H0 HD74LS174 hex Dflip-flop
15169321H0 HD74LS161 4bit binary counter
15169327H0 HD74LS367 hex bus driver
15159503 TC40H000 quad 2input NAND gate
15159524 TC40H245 8bidirect bus buffer non invert 3stage
15159511 TC40H174 hex Dtype flip-flop
15159508 TC40H373 octal Dtype latch
15159104S0 LM14011BP quad 2input NAND gate
15159113H0 HD14051BP 8ch analog multi/demultiplexer
15159129H0 HD14053BP 2ch analog multiplexer
15159134H0 HD14028BP binary to octal decoder
15159128H0 HD14050BP hex buffer
151891290A TL072CP OP amp (selected. Main Board)
15189129 TL072CP OP amp
15189105 PPC4558 OP amp
15229802 BA662A VGA
15199123 M5231L VREF regulator
15229817 A10H800170 VCF, VGA
15159117 M5230L tracking regulator
1589136 M5218L OP amp
15219213 MN3009 BBD
15169504 MN3101 BBD driver
15199106 yPC7805 5V 3terminal regulator
15149115 M54523 7unit transistor array
15159702 M54563 8unit transistor array
TRANSISTOR
15119106D0 2SA933-Q
15129107 2SC945-Q
151291080A 2SC945-Q (selected for NOISE)
151291300G 2SC1583G
15119814 2SB834-Y
15129107 2SC1740S
15129201 2SD880-Y
15139103 2SK30A-GR FET
15129107 2SC945-Q (Cm selected for TR3, TR4 of Main Board VCF/VCA
Module; dotted in Red, Orange, Yellow or Green) 12 transistors (2
for each voice) on agiven Main Board should be of the same color
dot for reproducing uniform timbre.

15119133 DTA114F digital WIRING ASS'Y 7-rr';>'9 •7
15129150 DTC114F digital 23463767 A
,23463768 B
23465726 C^9-*-h9y7Memory Cartridge
DIODE K23463770 D
15019103 1S2473
15019612 05Z-5.1 "Jxi-- Zener
15019201 W-02 DETACHABLE CORD SET K•ii yh
15029152 GL-9HD12 LED Red 13439825 DC-32-JO
1
lOOV
15029189 GL-9PG2 LED UGreen 13439812F0 VC-704-JO
1
117V
15029416 LB-202VL 7seg LED 13439813F0 EC-210-J01 220V
13439814F0 SC-415-J06 240V 3P (Australia)
13438817F0 EC-702-J05 240V 3P (w/2-prong plug for early England version)
PHOTO COUPLER 7:t K*or 13439846 BH-301-J01 240V 3P (England, w/ 3-prong plug)
15229703 P-873 Main Board
15229712 PC-900 MIDI OTHERS fOffe
12569111 Lithium Battery 'CR-1/3N
RESISTOR 12369410 Line Cord Strain Relief 1702B
13819149 lOfi Solid 1/2W 13429523 IC Socket SMO-28 -S6T 28P
13769161 3.3K Metal oxide film 22125164 Plate Power Transformer
13769173 lOK Metal oxide film 22465472 Heat Sink
13769182 24K Metal oxide film 22195475 LED Holder
13769565 4.7K Metal oxide film 22245448 Cover Slider
13769569 6.8K Metal oxide film 22373601 Memory Cartridge M-16C (MKS-30 factory preset)
1319310 RM-8 103J lOKfi X8Resistor array
13939321 RM-13 103J lOKfi X13 Resistor array
13919146 RKM14L503F R-2R Resistor array
15229909 ERS-B33G561 560fi Posistor
CAPACITOR
13659214M0 ECET25R682SW 6800yF 25V nm Electro.
13659226M0 ECET35R472SW 4700yF 35V mm Electro.
13639932S0 25MV lOPN /'M Bipolar
13639922M0 ECEICN lOOS lOyF 16V yU •Bipolar
13639941M0 ECE1ENR47S 0.47yF 50V yU •Bipolar
13529104 DE7150F472HVA1 0.0047yF 250V •tv iy^Ceramic
Line bypass
13569168 CQ09S1H 560R0J05 560PF --'i' Polystyrene
FUSE, FUSE HOLDER ta-X-
12559336 GGS 2A HJL-X 100/117V
12559508 CEE T250mA 220/240V
22199519 TF-758 Fuse Holder jl —X•
CONNECTOR HOUSING
13439121 5045-05A
13439122 5045-06A
13439123 5045-07A
13439124 5045-08A
13439126 5045-10A
13439155 5045-12A
13439157 5045-13A
13439164 5045-14A
13439169 3024-05CH

BLOCK DIAGRAM
MIDI
THRU IN PROGRAMMER
SWITCH BOARD
CIRCUIT DESCRIPTIONS
The MKS-30 accepts two kinds of external data coming
from aMIDI-equipped instrument and the Programmer
PG-200 --both in the form of aserial digital stream.
MIDI information is fed to the Main CPU as it is and
its rather distorted waveforms are re-shaped at TR3 and
TR4 on the Power Supply/Chorus Board (PS/CH BRD).
While the data from the Programmer are first converted
to parallel 8bits at Interface CPU IC62 outputs on the
Main Board.
NOTE: The circuit and the PCB of the Main Board are
revised versions of the GR-700 Guitar Synthe-
sizer module and the terminal designations
remain unchanged. Therefore, some function
names on these terminals are not strictly appro-
priate for this unit. For example, BRILLIANCE
control voltage comes to the "VCFPDL" pin.
DATA OUTPUT
Having obtained data ---concerning anote that is being
or will be generated ...from MIDI input, PG-200 and
Panel switch, the master CPU IC48 delivers data in digi-
tal format through three routes:
*To Programmable Counters (IC31— IC34) ---note
information
*To D/A converter (IC28, IC61 and RMl) ---tone
parameters and volume control signal
*To SW OUT (IC27) ---Waveform and function selec-
tions
DCO (DIGITAL CONTROLLED OSCLLATOR)
Master Oscillator TR14 (13) runs at around 4MHz and
varies its frequency as the base bias is changed from
TUNE (DCO 1and DCO 2) and FINE TUNE (DCO 2,
TR13 only). The variable range is 436 to 448Hz at A
above middle Cwith respect to the center frequency
442Hz.
Other frequency parameters such as LFO, ENV and
RANGE will have an effect through software only after
being processed by the CPU.
The CPU IC48 can accomodate MIDI note numbers
from 0to 127 while the pitch range of MKS-30 as a
whole is from 21 to 108. The CPU will shift odd notes
to the nearest octave within the range. The same func-
tion will work while RANGE is set in 16' or 4': higher
and lower octaves may repeat the same pitch.
The Master Oscillator is divided by either 1/2, 1/4 or
1/8 at IC39 (IC37) which in turn receives footage selec-
tion (RANGE setting) data from the CPU through IC41.
This will give the Programmable Counters the greater
frequency resolution capabilities (16 bits plus 2bits).
LFO, ENV AND DCO 2TUNE
These parameters do not directly affect the frequency
being generated, rather they are combined with anote
data which the CPU IC48 has obtained from MIDI IN-
PUT. These combined data are placed on the CPU data
bus and routed to the Programmable Counters 8253 ICs
31—34 as divisors.
PROGRAMMABLE COUNTERS
Programmable Counter 8253 containing three 16-bit
counters is capable of dividing high frequency signals
from the Master Oscillator according to the divisor data
from the CPU. Assuming that the master oscillator runs
at 4MHz and the divisor is 4000, the counter develops
1kHz rectangular signals. Adivisor is adata which the
CPU provides based on MIDI data and the edited daja
from the PG-200 to determine the pitch of anote being
played on the MIDI keyboard. Beside note information,
divisor data contains the following:
For DCO 1--- LFO, ENV
For DCO 2—Above plus DCO 2Tune
In SYNC mode, pulses from DCO 1are applied to the
gate of mated counter of DCO 2as reset pulses.
D/A &S/H
Parameters that determine the timbre of audio signal
flowing into Synthesizer module are converted into ana-
log equivalent (0 to 4.7V) through D/A converter con-
sisting of IC28, 29, 30, R-2R ladder resistor RMl and
IC61. Buffers (IC29) in MSB 2bit lines significantly re-
duce the effects of output impedances of ICs 28 and 30.
The D/Aed parameters are then applied commonly to
Demultiplexers ICs 21 to 24 and are sampled and held
into the correct channel in Individual stages - - -total 29
control voltages.
SWITCH OUTPUT AND SELECTION
ON or OFF and selection between circuit functions in
the Modules and successive stages are performed at elec-
tronic switches named as DCO WAVEFORM, SYNC,
SYNMET and NOISE. Switch Control signals from
Latch IC27 are fed to switch gears either directly or
through IC26. NOISE ON signal is also routed to pin 1
of IC37 to block DCO 2master frequency.
WAVEFORM CONVERSION
Output from Programmable Counter 8253 is rectangular.
So there is aneed to convert it to sawtooth when se-
lected. The conversion is carried out on the constant-
current integrating-circuit (C8) making use of IC4. The
rate of current flowing into C8 is determined by the out-
put from the S/H circuit of DCO CV. Pulse at TR6 base
(differentiated IC31 output) discharges C8 at the rectan-
gular rate.

UCV/. I90H
INTERCONNECTION
DCO CV contains amounts of ENV, LFO, RANGE, etc.
relating to note pitch, and keeps the sawtooth amplitude
constant over the frequency range. The CPU will add a
bias to DCO CV to exessively increase charging current
when the program needs pulse-like sawtooth.
When rectangular is selected, it is allowed to pass NAND
gate ICS, while TR6 is kept conducting by forward bias
from pins 1and 15 of IC26, bypassing C8 charging cur-
rent.
NOTE: When sawtooth wave is selected, pin 4of ICS
stays high (+5V).
SYNC
With positive voltages at pins 2and 12, ICS develops and
applies reset pulses to DCO 2Programmable Counter
and to TR5 base at aDCO 1rate.
VCF AND VGA
ICl is ahybrid 1C containing both VCF and VCA. Be-
side CPU controlled voltage, VCF CUTOFF can be con-
trolled by amanual override (BRILLIANCE control)
from front panel slider. Since the chip has many para-
meter inputs, it requires these inputs to be tailored for
the optimum parameter setting. CUTOFF, RESO-
NANCE, VCA LEVEL and DC BALANCE should be
readjusted whenever the chip is renewed.
CHORUS
Output from VCA is fed to MIX/HPF (IC60 and IC6a)
then to CHORUS circuit on the Power Supply/Chorus
Board.
The Chorus circuit consists of two identical BBD stages
having low frequency modulation input from triangular
oscillator and buffer IC4 and ICS. Two triangulars are
out of phase with each other.
PS/CH BOARD
CN1 MIDI
SW BOARD
CN3
CN9
MAIN BOARD
7IFSIG
6MIDI OUT
5CROMA
4EXTF
TPROTEC
2VREF
1MTUNE
(MIDI IN)
CN3
-15V 1
+15V 2
+7V 3
GND 4
PROGXD 5
BUSY 6
CN6 I
CN7
CN8
SWBS7 12
SWBS6 11
SW BS5 10
SWBS4 9
SWBS3 8
SWBS2 7
SWBS 16
SW BSO 5
SW SC 3.4
SW SC 2T
SW SC 12
'
SWSCO 1
LED BS 78
LED BS 67
LED BS 56
LEDBS4 5
LED BS 3 4
LED BS 23
LED BS 12
LED BS 01
LED SC 78
'
LED SC 67
LED SC 56
LED SC 45
LED SC 34
LED SC 2T
LED SC 12
LED SC 01
SW BOARD
PROGRAMMER
SOCKET
SW BOARD
CN2
NC
SW BOARD
CN2
SW BOARD
CN1
SW BOARD
CN1
NC
Q
(C
<
O
CD
S5
PS/CH BOARD
CN2

()...SN up to 460449
8
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mpii^ SiFJlill
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¥»'^!^»Ssgs^
'Sopj i>3 ni isaanaani
MAIN BOARD
79339060
(pcb 2291391601)

DEC. 1984 MKS-30
223 24 25 2^
T^n
XI
osc
KMFC1007T31
12MHz
1C 47 :
F-xr U) to -«oCM CO 2
1
vcc 1
5CN
ons1
m
OFoQ
kr iCM
<1
CARTRIDGE
INTERFACE
mDBBlm
MEMORY CARTRIDGE CONNECTOR |
BDBBBB
111111111111IUi
oo
HBQaQBByaQQBBIcr
>
lT)
7>
•f
AGND
o
z
o
o
O
z
o
o>
m
+>
00 in TCO CM
PS/CH CN2 1
C60 C74 cT44 CCCCCCC^
100/16x3 ICx
SW CN3 9
|SW
DIN
socket!

ADJUSTMENT
DC supply voltage must be checked and adjusted as neces-
sary before attempting any other adjustments.
REFERENCE VOLTAGE
1. Connect digital voltmeter to TP-2 (VREF) of Main board.
2. Adjust VR6 for 4.70V reading.
MAIN BOARD
<TIi>CLD
•ogy>£gJ
oS
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osa
C33
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03 i
1311
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-L2
TUNE 1
TEST PROGRAM
The MKS-30 is provided with Test program which can be fetched only when
in the test mode.
1ENTERING TEST MODE I
BANK PATCH
///
L11
1
1
/
/
1
1
(NORMAL MODE )
YEAR
——II u
O1
MONTH ^DAY
///n1
uuU1
1. Switch power ON.
MIDI CHANNEL NUMBER
BANK, PATCH NUMBER
2. While pressing MIDI CHANNEL,
press DYNAMICS.
The date of program
implementation.
(June 1, 1984)
I
(TEST MODE )
I
\
111
1
///
—
f
—
/n
1u
f
/1
1
1
L111
/1/
//
(normal mode
)
1
NOTE:
When step 2above is repeated, dis-
play will indicate the program ver-
sion. Then the unit returns to the
normal operation mode. Another
repetition of step 2will put the
unit again to the test mode.
MODULE NO. 3being assigned
I
/1
till 11j
123456
During the test mode the display
will indicate acurrently used test
signal and the module being assign-
ed to anote.
TEST SIGNAL N0.3 being selected
TEST KEYBOARD
The number buttons No. 1to No. 8can be used as atemporary keyboard
during the test mode.
Holding down MIDI CHANNEL, press anumber button: No. 1represents C
and No. 8Can octave up; the remaining numbers serve as natural keys Dto
Brespectively.
KEY ASSIGNMENT
The test program contains three key assignments. Selection among key assign
modes is accompdiished by pressing Number button No. 1, 2or 3while
holding down WRITE butt3n.
[1] SemiRotary
Default setting or when No. 1button is pressed while WRITE button is being
held down.
Repeating the same Number retriggers the same module; asecond Number
button is assigned any of the remaining modules, athird another and so on
[2] Rotary
Pressing No. 2button while holding down WRITE button enters this mode
Pressing anumber button (same or different) will advance module number to
another.
[3] NonRotary
Pressing No. 3 button while holding down WRITE button enters this mode.
Pressing asingle Number button (same or different) will stay on n,,.
module.
To shift the module to be assigned, press PARAMETER UP button; once for
the next module, twice for the third module, etc. Pressing UP six times re-
turns to the original.
SETTING AND TEST INSTRUMENTS
TUNE: center BRILLIANCE: center
Oscilloscope Frequency Counter
Amp (or Headphones)
HOLD
Releasing MIDI CHANNEL before aNumber button will hold the note.
CANCELING HOLD
While holding MIDI CHANNEL tap the Number button. If fall, try another
Number(s).
CAUTION If DYNAMICS is lit during astep, press it again to turn off.
1. TUNING
DCO 1
TUNE —center
Test Point ---POLY OUT or OUTPUT/Headphones
KEY ASSIGNMENT: [1] SemiRotary
TEST SIGNAL: 1—Press No. 1button (DCO 1sawtooth wave selected).
1-1. While pressing MIDI CHANNEL, press No. 6button, then release MIDI
CHANNEL —Note Awill be sustained (Hold ON condition).
1-2. Adjust L2 for 442Hz.
DCO 2
TEST SIGNAL: 2---Press No. 2button (DCO 1and 2sawtooth waves se-
lected.
1-
3. Adjust LI for zero beat between DCO 1and 2.
2. D/A OFFSET
Test Point -•-POLY OUT
KEY ASSIGNMENT: [1] SemiRotary
TEST SIGNAL: 1---Press No. 1button (DCO 1sawtooth wave selected).
2-
1. While holding MIDI CHANNEL, press Number buttons 1to 6one by
one and note amodule that producing the lowest output (not amis-
print, smallest one).
2-2. Holding the lowest output, adjust VR5 for the onset of clipping.

3. VGA LEVEL 7. RESONANCE
Test Point--- POLY OUT
KEY ASSIGNENT: [2] Rotary ---Hold WRITE and press No. 2button.
TEST SIGNAL: 3---Press No. 3button (square wave selected).
3-1. While holding MIDI CHANNEL ,press No. 1button, then release MIDI
CHANNEL ---Hold ON.
3-2. Adjust VR2 of the module being assigned (check on the display) for
600mVp-p.
3-3. First hold down MIDI CHANNEL then tap several number buttons
until currently assinged module disappears on the display. While press-
ing MIDI CHANNEL, press aNumber button. The module will shift;
confirm the module number on the display. Adjust the VR2 of the new
module for 600mVp-p.
3-
4. In the same manner adjust the remaining modules.
4. VGA DC BALANCE
Test Point - - -POLY OUT or Headphones
KEY ASSIGNMENT: [1] SemiRotary ---While holding WRITE, press No. 1
button.
TEST SIGNAL: 4---Press No. 4button (GATE signal selected).
4-
1. While holding MIDI CHANNEL, tap anumber button repeatedly and
adjust VR4 of the module being selected for the minimum thump.
4-2. In the same way adjust the remaining modules. But by tapping adif-
ferent key for each module and by turning the correct VR4.
5. VCF
A. RESONANCE
Test Point - - -POLY OUT BR ILLIANCE ---center
CAUTION Turn DYNAMICS OFF, if lit.
KEY ASSIGNMENT: [1] SemiRotary - - -WRITE plus No. 1buttons.
TEST SIGNAL: 5—Press No. 5button (Key-independent pitch provided).
5-1. Press anumber button (Hold ON). Turn VR1 of the module being
assigned fully clockwise; VCF will oscillate. Adjust the VR1 for
250mVp-p.
B. CUTOFF
5-2. Adjust VR3 of the module being assigned for 1kHz.
5-3. VR3 affects step 5-1. Repeat 5-1 and 5-2 until no further improvement
is obtained.
5-
4. In the simmilar way adjust the remaining modules (the first-adjusted
wave may be used as areference in zero beat sound method ---Hold
ON facility being used).
6.
VCF PITCH FOLLOW
CAUTION This adjustment must be done after completion of para. 5.
KEY ASSIGNMENT: [1] SemiRotary or (2) Rotary
TEST SIGNAL: 6---Press No. 6button (VCF regeneration and KCV se-
lected.
6-
1.Play the number buttons and confirm the scale.
Test Point ---POLY OUT
KEY ASSIGNMENT: [1] SemiRotary or [2] Rotary
TEST SIGNAL: 7---Press No. 7button (Resonating sawtooth wave se-
lected).
7-1. While holding MIDI CHANNEL button, hit the Number buttons and
check for resonant waves.
8. BBD BIAS
R39 ^POWER SUPPLY/CHORUS BOARD
Test Point n
^
1C11
MW3009.
fcjUlLJLi
KEY ASSIGNMENT: [1] SemiRotary or [2] Rotary
TEST SIGNAL: 1—Press No. 1button (sawtooth wave selected).
8-1 .Connect the scope to point A.
8-2. While Holding 8notes ON (Hold ON) adjust VR1 for centered wave-
forms.
8-3. Connect the scope to point B.
8-4. Adjust VR2 for centered waveform

MIDI IMPLEMENTATION
RECOGNIZED RECEIVE DATA
Status Second Third Description
1000 nnnn Okkk kkkk Ovw ww Note OFF
kkkkkkk -0-127 (21 -108)
velocity ignored
1001 nnnn Okkk kkkk 0000 0000 Note OFF
kkkkkkk -0-127 (21 -108) *2
1001 nnnn Okkk kkkk Ovw ww Note ON
kkkkkkk -0-127 (21 -108)
vwww 1-127
*2
1011 nnnn 0000 0001 Ovw ww Modulation *3
1011 nnnn 0100 0000 0111 nil hold on (1 -126 ignored) *3
1011 nnnn 0100 0000 0000 0000 hold off
1100 nnnn Oppp PPPP Program Change *3
PPPPPPP 0-127 *5
1110 nnnn ObbO 0000 Obbb bbbb Pitch Bender *3,4
1011 nnnn 0111 1011 0000 0000 ALL NOTES OFF
1011 nnnn 0111 1100 0000 0000 OMNI OFF (ALL NOTES OFF) *1
1011 nnnn 0111 1101 0000 0000 OMNI ON (ALL NOTES OFF) *1
1011 nnnn 0111 1110 Ovw ww ALL NOTES OFF *1
1011 nnnn 0111 nil 0000 0000 POLY ON (ALL NOTES OFF) *1
Notes:
*nnnn 0-15 corresponds to channel 1-16.
*1 Mode messages (123 -127) are also recognized as ALL NOTES OFF.
Mode messages are recognized as follows:
POLY ON (127) MONO ON (126)
OMNI -OFF OMNI -OFF
OMNI OFF (124) POLY POLY
OMNI -ON OMNI *ON
OMNI ON (125) POLY POLY
*Mode messages (123 thru 127) are recognized in only the basic
channel. While in OMNI ON mode, voice messages in all channels are
recognized. While in OMNI OFF mode, voice messages in only the
basic channel are recognized.
*When power is first applied, the default mode is MODE 3(OMNI
OFF, POLY).
*The basic channel can be changed by panel operation. The current
basic chaneel number will be retained even after power is turned
OFF.
*2 Note numbers outside the range (21-108) are shifted to the nearest
octave within the range.
*3 These are enabled or disabled to be recognized by panel operations.
These conditions are memorized when power is OFF.
*4 Sensitivity of the PITCH BENDER can be adjusted within the range of
0to 7semitones.
Message Max. value Min. value
MSB 0
LSB 96 0
Sensitivity
MAX +7 -7 semitones
MIN 1-1
ZERO 00
*5 Program change assignments are as follows B:bank P:patch
Prog# BPProg #BPProg #BPProg #BP
01116 3132 5148 71
11217 3233 5249 72
21318 3334 5350 73
31419 3435 5451 74
41520 3536 5552 75
516 21 3637 5653 76
61722 3738 5754 77
71823 3839 5855 78
82124 4140 6156 81
92225 4241 6257 82
10 2326 4342 6358 83
11 2327 4443 6459 84
12 2 5 28 4544 6560 85
13 2629 4645 6661 86
14 2730 4746 6762 87
15 2831 4847 6863 88
Prog #BPProg# BpProg# BPProg #BP
64 1”7 80 3196 51112 71
65 1281 3297 52113 72
66 1382 3398 53114 73
67 1483 3499 54115 74
68 1584 35100 55116 75
69 1685 36101 56117 76
70 1786 37102 57118 77
71 1887 38103 58119 78
72 2188 41104 61120 81
73 2 2 89 42105 62121 82
74 2390 43106 63122 83
75 2491 44107 64123 84
76 2592 45108 65124 85
77 2693 46109 66125 86
78 2794 47no 67126 87
79 2895 48111 6 8 127 88
The program change numbers 0chru (>3 are assigned to internal memory.
The numbers 64 thru 127 are assigned to the memory cartridge if it is
equipped. If not, they are assigned to internal.
Panel operations:
Pressing the following switches (number buttons) while holding down
MIDI CHANNEL toggles the respective functions.
Switch Function
3program change
4hold pedal
5pitch bender
6modulation

24 VOO
IB Cc
IC1
TC55I7APL