Simply follow the suggestions below and your ROLAND sound module should be returned to factory presets; or "reinitialized".

A220  Power on while holding down the B and MEMORY buttons. 
A30  Power on while holding down WRITE. (Hold For 15 seconds.) 
A33 Power on while holding down WRITE. (Hold For 15 seconds.) 
A37  Power on while holding down the WRITE button, the display will scroll FACTORY SETUP when completed. 
A50  While holding down the 1st, 3rd and 4th buttons under the display, press CHANNEL. Then press any CURSOR button. 
A80  While holding down the 1st, 3rd and 4th buttons under the display, press CHANNEL. Then press any CURSOR button.
A880  Power on while holding down the SIGNAL and MEMORY buttons. 
A90 Power on while holding down the EDIT button, then press ENTER. 
A90EX  Power on while holding down the MANUAL button, then press ENTER.
ADA-8024  NO RESET. 
aP700 Power on, then press EXIT until you get the ANALYZER/FILTER screen. Cursor to MENU and press ENTER. Then cursor to SYSTEM and press ENTER and then cursor to INITIALIZE and press ENTER. Use the VALUE DIAL to select ALL, select EXEC and press ENTER twice. 
AR100  NO RESET. 
AR2000  NO RESET. 
AT   Power on while holding ONE TOUCH PROGRAM 
AX1  Power on while holding down WRITE. (Hold For 30 seconds.) 
AX7  Power on while holding down the WRITE button, the display will scroll FACTORY SETUP when completed. 
AXIS1  While holding down the FUNCTION button, press the F#0, C#2, and D#2 keys. 
BR1180  NO RESET
BR1180CD  NO RESET
BR532  NO RESET
BR8  NO RESET
CA30  resets every time you turn it off and then back on. 
CDX1  Press UTILITY. Cursor RIGHT > to select INIT and press ENTER. Cursor < or > to select GLOBAL and press ENTER three times. 
CR80  Power on while holding down the DEL and REPEAT buttons, then press the ENTER button. 
D10  NO RESET. 
D110   NO RESET. 
D2  While holding down WRITE, press SYSTEM. Then press ENTER twice. 
D5, D20, D50, D550, D70   NO RESET. 
DDR30   Power on while holding down the #1 button. 
DEP3  Power on while holding down the MEMORY UP and DOWN buttons. 
DEP5  Power on while holding down the MEMORY UP and DOWN buttons. 
DJ70, DJ70MKII, DM80, DM800  NO RESET. 
DR202  Power on while holding down MUTE and ROLL. Use the VALUE DIAL to select ALL and press TAP/ENTER twice. 
DR5  Power on while holding down the FRET LEFT (<) and RIGHT (>) buttons, then press ENTER twice. 
DR550, mkii  Power on while holding down the -1 and +1 buttons, then press the START button. 
DR660 Press UTILITY, then use LEFT (<) and RIGHT (>) to select [8] INIT. Press the ENTER button twice. 
DR670 Power on while holding down the REC and STOP/CONT buttons, then press ENTER twice. 
DR770 Press UTILITY then CURSOR (>) to 9.F.RST. Use the VALUE DIAL to select ALL and press ENTER twice. 
DS330 Power on while holding down REVERB and SPLIT, then press the YES button. 
E10 Power on while holding WRITE 
E12 No reset 
E14 The unit resets each time you turn it on 
E15 The unit resets each time you turn it on 
E16 The unit resets each time you turn it on 
E20 Power on while holding WRITE 
E28 The unit resets each time you turn it on 
E30 Power on while holding WRITE 
E300 Press UTILITY, use the buttons under PAGE to select FACTORY PRESET press EXECUTE, then OK. 
When screen shows RESET COMPLETE, power off, then on 
E35 Power on while holding REC/PUNCH IN 
E36 Power on while holding RECORDER 
E38 The unit resets each time you turn it on 
E5 No reset 
E500 Press UTILITY, use the buttons under PAGE to select FACTORY PRESET press EXECUTE, then OK. 
When screen shows RESET COMPLETE, power off, then on 
E56 Power on while holding WRITE 
E600 Pres FUNCTION, use the PAGE buttons so the screen reads FACTORY PRESET, then tocuh EXECTUE 
E66 Power on while holding REC 
E70 Power on while holding WRITE 
E86 Power on while holding WRITE 
E96 Power on while holding WRITE 
EF303 Power on while holding down SHIFT. Press WRITE twice. Turn the power OFF and On again. 
EM10 , 20, 30, 50 Power on while holding WRITE 
EP-mkII While holding REC and PLAY, press STRINGS. Power off then on 
EP7 While holding REC and PLAY, press STRINGS. Power off then on 
EP75, EP85 Power on while holding REC 
EP9 While holding REC and PLAY, pres CHOIR. Power off and then on 
EP95 Power on while holding REC 
FA76 Press MENU, then (UP) or (DOWN) to select FACTORY RESET. Press F8 (SELECT) then F8 (EXECUTE) to reset. 
FANTOM Press MENU, then (UP) or (DOWN) to select FACTORY RESET. Press F8 (SELECT) then F8 (EXECUTE) to reset. 
FC100 NO RESET. 
FC100MKII Power on while holding pedals #1, #2 and #8. 
FC200 Power on while holding the #10 pedal, then press the CTL pedal. 
FG10, FG1000 Power on while holding down the CLEAR and EXIT buttons. 
FP1 The unit resets each time you turn it on 
FP8 Press FUNC and release. While holding PIANO, press FUNC again 
FP9 The unit resets each time you turn it on 
G600, g800 Power on while holding WRITE 
GC8 NO RESET. 
GI10 Power on while holding down the PARAMETER + and - buttons, then press the VALUE + button. 
GM70 Poly Mode: Power on while holding down PLAY, GENERAL EDIT and IND EDIT. Mono Mode: Power on while holding down TUNE, CONTROL ASSIGN, and DATA TRANSFER. 
GP100 Power on while pressing in the PARAMETER KNOB, then press WRITE. 
GP16 Power on while holding down the #6, #7 and #8 buttons. Use the FUNCTION (<) and (>) buttons to select "2.All Factory Preset", then press WRITE three times. 
GP8 NO RESET. 
GR09 Power on while holding down the #2 pedal, then press the VALUE + button, followed by the EDIT/PLAY button. 
GR1 Power on while holding down the WRITE/COPY button, then press YES 
GR30 Power on while holding down the #2 pedal, then press the PATCH + button to select INI. Press the EDIT/PLAY button and then the PATCH + and PATCH - buttons simultaneously. 
GR33 Press SYSTEM and then PARAMETER. Use the VALUE DIAL to select ALL in the display. Press WRITE twice. 
GS6 NO RESET. 
GT3 Power on while holding down MOD and SFX. Press WRITE. 
GT5 Power on while holding down MOD and FEEDBACKER/SLOWGEAR. Press WRITE. 
GT6 Power on while holding down PREAMP SPEAKER ON/OFF and TYPE VARIATION. Press ENTER. 
GT6B Power on while holding down COMPRESSOR/LIMITER ON/OFF and TYPE VARIATION. Press ENTER 
GX700 Press TUNER/UTILITY. Use PARAMETER (<) and (>) to select FACT INIT. Cursor LEFT and dial SYSTEM then cursor RIGHT and dial P#100. Press WRITE and then TUNER/UTILITY. 
HPD15 Press SYSTEM, then PARAMETER (>) RIGHT to "Factory Reset". Use the PATCH/VALUE DIAL to select ALL and press WRITE 
JD800 Press DATA TRANSFER. Use page UP and DOWN to select FACTORY PRESET, then press ENTER. 
JD990 While holding EXIT, press UTILITY. Press F6 (EXECUTE) and the F5 (YES). 
JP6, JP8 NO RESET. 
JP8000 While holding down the SHIFT button, press INIT/UTIL. Press INIT/UTIL again until you get INITIALIZE WRITE in the screen. Use the DOWN and UP buttons to select FACTORY PRESET, then press the WRITE button. 
JP8080 Press EDIT and then Bank 7 (also labeled INIT/UTIL) several times to access "FACTORY RESET " in the display. Press DEC or INC to select ALL in the screen and then press REC followed by WRITE. 
JS30 Power on while holding down the RECORD button, located in the sequencer section. 
JS5 Press UTILITY then CURSOR (>) to "Factory Reset?". Press ENTER twice. 
JUNO 1 NO RESET. 
JUNO 106 NO RESET. 
JUNO 2 NO RESET. 
JUNO 6 NO RESET. 
JUNO 60 NO RESET. 
JUPITER 6 NO RESET. 
JUPITER 8 NO RESET. 
JV1000 Power on while holding down the NUMBER 8 button (also labeled PERFORM and CAPS), press ENTER then press WRITE. 
JV1010 While in PERFORM mode, press the VOLUME KNOB and VALUE KNOB together. Turn the CATEGORY/BANK KNOB to PIANO and press the VALUE KNOB twice. 
JV1080 Press UTILITY, cursor down once, then cursor right three times to select FACTORY PRESET. Press ENTER twice, then press UTILITY. 
JV2080 Press UTILITY. Press F6 twice to select MENU 3. Press F1 and then F6 (turn the "memory protect" to OFF if necessary using the VALUE DIAL). Press F6 twice. 
JV30 Press CHORUS and REVERB (above INITIALIZE) simultaneously. Press VALUE UP. 
JV35 Press CONTROL and MASTER simultaneously. Press PARAMETER UP or DOWN to select ALL. Press VALUE UP. 
JV50 Press CONTROL and MASTER simultaneously. Press PARAMETER UP or DOWN to select ALL. Press VALUE UP. 
JV80 Power on while holding down the NUMBER 8 button (also labeled PERFORM and CAPS), press ENTER then press WRITE. 
JV880 Press UTILITY, then use the DATA DIAL to select FACTORY PRESET. Press ENTER twice. 
JV90 Power on while holding down the NUMBER 8 button (also labeled PERFORM and CAPS), press ENTER then press WRITE. 
JW50 Press TUNE/FUNCTION. Press F5 (FACTORY), then F4 (JW RESET), then F3 (GS RESET), then F4 (YES). 
JX1 Power on while holding down WRITE and FLUTE. 
JX10 NO RESET. 
JX3P NO RESET. 
JX8P NO RESET. 
KF90 Press FUNCTION, touch SYSTEM, touch FACTORY RESET, touch EXECUTE, touch OK 
KR100 RESETS WHEN POWERED ON
KR3000  HOLD FROM AND TO, THEN PRESS WRITE. 
KR33 RESETS WHEN POWERED ON
KR350 HOLD LOAD AND SAVE, THEN PRESS WRITE. 
KR3500 HOLD LOAD AND SAVE, THEN PRESS WRITE. 
KR370   RESETS WHEN POWERED ON
KR4500 HOLD LOAD AND SAVE, THEN PRESS WRITE. 
KR4700 HOLD LOAD AND EDIT, THEN PRESS SAVE. 
KR-500 HOLD FROM AND TO, THEN PRESS WRITE. 
KR5000 HOLD LOAD AND EDIT, THEN PRESS SAVE. 
KR55 HOLD MIDI FUNCTION AND PRESS CARDS (5 SECONDS). 
KR5500 HOLD LOAD AND SAVE, THEN PRESS WRITE. 
KR650 HOLD LOAD AND SAVE, THEN PRESS WRITE. 
LVC1N HOLD ENTER BUTTON THEN POWER ON. 
M760 HOLD EDIT, PRESS WRITE. PARAMETER UP/DOWN TO SELECT ALL + PRESS WRITE. ON COMPLETION PRESS EDIT TO RETURN TO PLAY. 
MDC1 HOLD F3 AND THEN POWER ON. 
MGS64 HOLD F3 AND THEN POWER ON. 
MOC1 HOLD F3 AND THEN POWER ON. 
MSE1 HOLD F3 AND THEN POWER ON. 
MVS1 HOLD F3 AND THEN POWER ON. 
MBD1 HOLD F3 AND THEN POWER ON. 
MC SERIES; EXC303  NO RESET
MC303 HOLD SHIFT AND THEN POWER ON, THEN PRESS ENTER. 
ME10 HOLD BANK DOWN PEDAL, THEN PRESS WRITE. 
ME5 HOLD PEDALS 1 AND 2, POWER ON; PRESS WRITE IMMEDIATELY. 
ME6 HOLD LEFT + DOWN AND POWER ON; THEN PRESS WRITE.
ME6B HOLD LEFT + DOWN AND POWER ON; THEN PRESS WRITE.
ME8 HOLD LEFT + DOWN AND POWER ON; PRESS WRITE/COPY.
PAD8 Power on while holding down the MIDI CH and NOTE NUMBER. Power the unit OFF and then back ON again. 
PAD80 Power on while holding down both the VALUE buttons. 
PK5 Power on while holding OCT/PARAM 
PK7 NO RESET 
R5 Power on while holding down CURSOR PAGE and PARAM SELECT, then press the ENTER button twice. 
R70 Power on while holding down the MIDI and ASSIGN buttons. 
R8 Power on while holding down CURSOR PAGE and PARAM SELECT, then press the ENTER button twice. 
R880 NO RESET. 
R8M Power on while holding down ENTER and RIGHT (>) CURSOR, then press the ENTER button twice. 
R8MKII Power on while holding down CURSOR PAGE and PARAM SELECT, then press the ENTER button twice. 
RA30 The unit resets each time you turn it on 
RA50 Power on while holding WRITE 
RA800 Power on while holding WRITE 
RA90 Power on while holding WRITE 
RA95 Power on while holding REC 
RD100 NO RESET 
RD500  Power on while holding down the NUMBER 1 and 8 buttons, then press DEC/YES. 
RD600 Press EDIT, then the RIGHT PAGE button until "INITIALIZE ALL" is displayed. Press INC/YES twice. Press EDIT to return to the play mode. 
RD600 Press EDIT, use page button to display INT ALL, press YES twice and EDIT to return to play mode 
RD700 Press EDIT, then press TONE SWITCH 9. Press ENTER then CURSOR DOWN to FACTORY RESET ALL. Press ENTER and then the YES button. 
RS5 Press UTILITY. Use the VALUE + or - to select "FACTORY RESET" then press ENTER. 
RS9 Press UTILITY. Use the VALUE + or - to select "FACTORY RESET" then press ENTER. 
RSP550 Power on while holding down PROGRAM, PAGE UP and PAGE DOWN. Then press WRITE. 
RSS10 Power on while holding down LOCK and OPTION.Press DEMO PROGRAM four times. Then press DEVICE ID. 
RSS8040 NO RESET. 
RV70 Power on while holding down WRITE and DOWN. Use the UP and DOWN buttons to select ALL. Press WRITE, then power the unit OFF and back On again. 
SBX1000 NO RESET. 
SC155 Power on while holding both INSTRUMENT buttons, then press ALL 
SC33 Power on while holding REVERB and SPLIT, then press YES 
SC50 Power on while holding both INSTRUMENT buttons, then press ALL 
SC55 Power on while holding both INSTRUMENT buttons, then press ALL 
SC55mkII Power on while holding both INSTRUMENT buttons, then press ALL 
SC7 The unit resets each time you turn on 
SC88 While holding SELECT, press both INSTRUMENT buttons, then press ALL 
SC88pro While holding SELECT, press both INSTRUMENT buttons, then press ALL 
SD35 Power on while holding CLEAR, then press REC 
SDD320 NO RESET. 
SDE330 Power on while holding down SYSTEM and PROGRAM. Use the DATA DIAL to select SYSTEM + PROGRAM. Press MEMORY. 
SDX330 Power on while holding down SYSTEM and PROGRAM. Use the DATA DIAL to select SYSTEM + PROGRAM. Press MEMORY. 
SE50 Power on while holding down PARAM UP and VALUE UP. Press WRITE, wait for three seconds and the press WRITE again.. 
SE70 Power on while holding in the NUMBER/VALUE knob, press PARAMETER (<) LEFT. Use the NUMBER/VALUE knob to select STANDARD mode or GUITAR mode. Press WRITE. 
SH101 NO RESET. 
SH2000 NO RESET. 
SH32 Power on while holding down (1/A), press VALUE UP/DOWN to display ALL in the screen. Press WRITE twice. 
SN700 NO RESET. 
SP202 Power on WHILE holding down the SOURCE pad. 
SP303 Power on while holding down CANCEL, REMAIN and DEL, then press REC. 
SP505 Press SONG, then SYSTEM. Press F1(UTILITY) then F3(INIT). Use the VALUE DIAL to select ALL and press F1 twice to execute the operation. Press PTN or SONG to return to the play screen. 
SP700 NO RESET. 
SP808 Press SYSTEM/DISK and CURSOR DOWN to "Init System Parameters?". Press ENTER/YES twice and then press PLAY to return to the basic screen. 
SP808EX Press SYSTEM/DISK and CURSOR DOWN to "Init System Parameters?". Press ENTER/YES twice and then press PLAY to return to the basic screen. 
SPD11 Power on while holding down ALL/ENTER and DOWN. Then press ALL/ENTER again. 
SPD20 Power on while holding down the CURSOR DOWN and ALL/ENTER. Press the ALL/ENTER button again to complete the procedure. 
SPD8 Power on while holding down EDIT, then press COPY. Use the VALUE UP and DOWN to select "F_A_L" in the screen. Press ALL/ENTER. 
SRC2 NO RESET. 
SRV1000 NO RESET 
SRV2000 Power on while holding down the WRITE and REVERB NON LINEAR buttons. 
SRV3030 Press MEMORY. Use the NUMBER/PAGE DIAL to display "FACTORY RESET" . Rotate PARAM 3 to set the target to ALL, then press ENTER twice. 
SRV3030D Press MEMORY. Use the NUMBER/PAGE DIAL to display "FACTORY RESET" . Rotate PARAM 3 to set the target to ALL, then press ENTER twice. 
SRV330 Power on while holding down SYSTEM and PROGRAM. Use the DATA DIAL to select SYSTEM + PROGRAM. Press MEMORY. 
SSC8004 NO RESET 
SX700 Press UTILITY. Use PARAMETER (<) LEFT and (>) RIGHT to select FACT INIT, then press WRITE. 
TB303 NO RESET 
TD10 Press SETUP, then press F4 three times. 
TD5 Power on while holding down EDIT and START/STOP, then press START/STOP again. 
TD6 While holding SHIFT, press EDIT(SETUP) then CURSOR (>) to FACTORY RESET. Press ENTER then INC/DEC to select ALL, finish by pressing ENTER. 
TD7 Press SYSTEM. Use the CURSOR keys to select INI and press ENTER. CURSOR to HIHAT and use the DATA DIAL to select ALL. Press ENTER twice. 
TD8 Press SYSTEM then F3(MENU), use the CURSOR DOWN to select RESET and then press F3 again. Use the VALUE DIAL to select ALL and then press F3 twice. 
TP20 NO RESET 
TR505 Power on while holding down MODE and PATTERN KEY GROUP A. 
TR626 Power on while holding down MODE and TRACK #1. 
TR707 Power on while holding down TRACK WRITE and TRACK #1. 
TR727 Power on while holding down TRACK WRITE and TRACK #1. 
TR808 NO RESET 
TR909 Power on while holding down TRACK #1 and Pattern #1. 
U110 Power on while holding down PART and EDIT. 
U20 NO RESET 
U220 NO RESET 
VA5 Press FUNCTION MENU, then touch GLOBAL PARAMETER. Touch ALL underneath Factory Resume 
VA7 Press FUNCTION MENU, then touch GLOBAL PARAMETER. Touch ALL underneath Factory Resume 
VBASS While holding down the PAGE < and PAGE > turn on the power. Press the WRITE button twice. 
VF1 Press UTILITY, then rotate the VALUE DIAL to display "FACT RESET". Press ENTER three times. 
VG8 Power on while holding down F1, F3 and F5. Then press either (F6:ALL)(F4:PATCHES)(F2:SYSTEM). 
VG88 Power on while holding down the PAGE < and PAGE >. Then press WRITE twice. 
VG8EX Power on while holding down F1, F3 and F5. Then press either (F6:ALL)(F4:PATCHES)(F2:SYSTEM). 
VGA7 Power on while holding down the WRITE button, ALL will flash in the LED. Press WRITE again to complete the procedure. 
VK1000 Press WRITE, then press F3 to access the INIT MENU screen. Press F4 to access the COLD BOOT Screen, then press ENTER. 
VK7 Power on while holding down MAIN, SUB and PEDAL in the HARMONIC BAR PART. 
VK8 Power on while holding down UPPER. LOWER and PEDAL in the HARMONIC BAR PART until all the panel indicators light. 
VP70 Power on while holding down PLAY, VOICE EXPANSION and MIDI. 
VP9000 Press UTILITY then PART (>) to go to MENU 2. Press F1 (FACTORY) and then F6 (EXEC). 
VS1680 NO RESET 
VS1680EX NO RESET 
VS1824 NO RESET 
VS1824CD NO RESET 
VS1880 NO RESET 
VS2480 NO RESET 
VS2480CD NO RESET 
VS840 NO RESET 
VS840EX NO RESET 
VS840GX NO RESET 
VS880 NO RESET 
VS880EX NO RESET 
VS890 NO RESET 
VT1 Power on while holding down the PRESET/USER button. 
W30 NO RESET 
W50 Press CONTROL and MASTER simultaneously. Use PARAMETER UP and DOWN to select ALL 
W50 Press CONTROL and MASTER together. Use the PARAMETER UP and DOWN buttons to select ALL. Then press the VALUE UP button. 
XP10 Press UTILITY. Use the VALUE + or - to select INITIALIZE, then press ENTER. Use the VALUE + or - to select FACTORY PRESET, then press ENTER. 
XP30 Press UTILITY/CARD. Press the CURSOR DOWN then press #4 (BASS). Press ENTER (if protect message appears, use the DIAL to turn the Memory Protect OFF, then press ENTER twice). 
XP50 Press DISK/UTILITY. Select SOUND, then select PRESET and press ENTER. Use the DIAL to turn the Memory Protect OFF if necessary, then press ENTER twice. 
XP60 Press UTILITY then F6 twice to select FACTORY and press ENTER. Press F6 (EXECUTE), then use the DIAL to turn the Memory Protect OFF if necessary, then press ENTER then press F6 (EXECUTE). 
XP80 Press UTILITY then F6 twice to select FACTORY and press ENTER. Press F6 (EXECUTE), then use the DIAL to turn the Memory Protect OFF if necessary, then press ENTER then press F6 (EXECUTE). 
XV2020 While in PERFORM mode, press the VOLUME KNOB and VALUE KNOB together. Turn the CATEGORY/BANK KNOB to PIANO and press the VALUE KNOB twice. 
XV3080 Press UTILITY and the CURSOR DOWN to UTIL page 2. CUROSR (<) or (>) to make the FACTORY RESET flash. Press ENTER three times. 
XV5050 Press UTILITY and then CUROR (<). Turn the VALUE DIAL to select FACTORY RESET and press ENTER twice. 
XV5080 Press SYSTEM/UTILITY so that the light starts blinking. Press F6 (MENU) and then F5 (FACTORY). Then press F6 (EXECUTE). 
XV88 Press UTILITY and then CURSOR DOWN to UTILITY page 2. Press 4(BASS) and then ENTER twice.