Yamaha Vintage DX7 Special Edition ROM Manual

THE VINTAGE DX7
SPECIAL EDITION
*ROM^
INSTRUCTION GUIDE
WARNING! Lethal voltage can be present and will be exposed when
the DX7 case .1* opened and the unit is plugged in. All
service operations* including the installation of LCD's
ROM's etc.# should be referred to qualified technicians.

TABLE OF CONTENTS
INTRODUCTION .*..„.r,PAGES 1-2
STANDARD ROM 1. SPECIAL EDITION ROM COMPARISON-PAGES 2-3
HON TO INSTALL THE SPECIAL EDITION RDM.PAGES 3-7
OPERATIONAL PROCEDURES ..... ..PABES 7-25
... BASIC OPERATION ....PAGES 7-B
MEMORY SWITCH 41 FUNCTION PARAMETER
MASTER TUNE. PAGE 9
MEMORY SWITCH 46 FUNCTION PARAMETER
MIDI CONTROL ... . .PAGE 9
FUNCTION #1, MIDI CHANNEL INFORMATION ON/OFF PAGES 10 -13
FUNCTION 42, MIDI SYSTEM INFORMATION ON/OFF. .... PAGES 13 -14
FUNCTION 43, FC VOLUME INFORMATION ON/OFF ..PAGES 14 -17
FUNCTION #4, AFTERTDUCH INFORMATION ON/OFF PAGES. 17 -19
MEflORY_GWJTCH 410 FUNCTION PARAMETER
FUNCTION #1, VOICE INITIALIZE........ ......PAGE 20
FUNCTION 42, SINGLE FUNCTION INITIALIZE.... PAGES 20 -22
FUNCTION 43,. ALL FUNCTION INITIALIZE. ........... PAGES 22 -23
MEMORY SWITCH 412 FUNCTION PARAMETER
MIDI RECEIVE FUNCTION.. PAGES 23 -24
MEMORY SWITCH 413 FUNCTION PARAMETER
MIDI.. TRANSMIT FUNCTION PAGES .24 -25
FINAL NOTES-....... PAGE 25
FUNCTION JOB TABLE PAGES 26 -2B
APPENDIX A2ROM MODIFICAT ION INFORMAT ION. ......... PAGES 29-31
APPENDIX BTROUBLESHOOTING SECTION..PAGES 32 -35
APPENDIX BTROUBLESHOOTING CHART PAGES 36-40
APPENDIX CINITIALIZED FUNCTION PARAMETER CHART. ...PAGE 4
1
VERSION 1,3 -FEBRUARY 14. 1969

DX7 SPECIAL EDITION -^P^5IEUCXLEM-mil!E
SPECIAL EDITION ...RDM .^_INTJOBUEUPM
Thank you for purchasing the SPECIAL EDITION SYSTEM ROM lor
the Vintage (original 1DX7 synthesiser. Thla INSTRUCTION GUIDE
will provide you with the n««i»«ry information to both install
and operate the SPECIAL EDITION ROM veralon. It 1« advlaable
that you read through this INSTRUCTION GUIDE thoroughly before
installing and operating th« unit.
It might prova halpful to d.scriba th» baalc daf ini ti on and
function of eROM device or IC OnteCjreted C1 ^cu‘t> 'Jt'* ,
ROM stands for BEAD QNLY BEMORY. AROM le a device with -ultipl
pins, end in the case of the SPECIAL ED1T1DN ROM, it has atotal
of 2B pi ns <14 pins par »ida> as ahown in FI6URE 1.
FIGURE i
basically aROM has stor.d in ita»*ria* of instruct ion. and
constant vilutft that ara usad by tha computar unit of tha
instrument. The computer unit of the instrument (in this case
the DX7> retrieve* instructions from the ROM and performs tn»
necessary tasks in order to operate or implement .a particular
function. Therefore, by removing the DX7's old ROM and
it with the SPECIAL EDITION ROM (that has different 1natructi ons
stored in lt>, you can then access new and enhanced functions.
The SPECIAL EDITION RDM was developed to enhance the
Performance and MIDI capabilities of the Vintage DX7. The
enhanced features of this SPECIAL EDITION ROM include the
fol lowing I
(1) FUNCTION PARAMETERS FDR EACH VOICE CAN BE MEMORIZED OR SAVED
TO INTERNAL HEMORV OR A RAH CARTRIDGE!
C2> THE SPECIAL EDITION ROM DISPLAYS THE CURRENT MASTER TUNE
SETTING OF THE DX7!
(3> HIDI CHANNEL .INFORMATION ON/OFF FEATURE WHICH ALLOWS YOU TO
ENABLE OR DISABLE PROGRAM AND CONTROL CHANGES!
<4 )MIDI SYSTEM INFORMATION ON/OFF FEATURE THAT ALLOWS YOU TO
TRANSMIT SYSTEM EXCLUSIVE DATA OF ASINGLE VOICE OR ALL 32
VOICES. CONTAINED IN INTERNAL MEMORY!
(5) INITIALIZATION FEATURE TO INITIALIZE FUNCTION PARAMETERS CF A
SINGLE VOICE OR ALL 32 VOICES!
-1-

DX7 SPECIAL .EQUIPS RP* P^PE
tfc) MIDI RECEIVE FEATURE THAT ALLOWS YOU TCBET THE MIDI RECEIVE
CHANNEL TO THE ’OMNI ON" MODE OR ANY ONE OF I* MIDI CHANNELS
<7> MIDI TRANSMIT FEATURE WHICH ALLOWS YOU TO ®ET THE MIDI
TRAN5MIT CHANNEL TO ANY ONE OF THE 16 MIDI CHANNELS.
<B) AFTERTOUCH ON/OFF FEATURE THAT ALLOWS YDU ™1™ETHER
YOU WANT TO TRANSMIT, OR NOT TRANSMIT,
INFORMATION. THIS AFTERTOUCH ON/OFF PARAMETER CAN BE
MEMORIZED OR SAVED FDR EACH VOICE* ..AND...
(9) MAIN VOLUME TRANSMIT FEATURE WHICH ALJ-OWS VOO ^0 TRANSMIT
MIDI VOLUME INFORMATION BY UTILIZING THE MODUlMIONFOOT
CONTROLLER INPUT. THIS PARAMETER CAN ALSO BE MEMORIZED DR
SAVED FOR EACH VOICE!
1M COMPARISON
The <cllowino ction will, rwviww th- *und«m.nt«l di *f-r-ne**
to-tnepn th. St«r>ct»rd ROM »nd the SPECIAL EDITION ROM. A*
previously —ntloh.d, th* SPECIAL EDITION ROM c.n
specific FUNCTION PARAMETERS for each voice, where the Standard
ROM did not- More specifically, the SPECIAL EDITION
memorii* FUNCTION PARAMETERS represented by .witches 2through 7
and iwi tches 17 through 32 of the DX7 efront control panel.
Also, two FUNCTION PARAMETERS of switch Bc*n be memorised-
Therefore, the mein differences between the ROM versions exists
in the FUNCTION. MODE of the DX7- Only the FUNCTIONS that *re
different will be described. All Other FUNCTIONSiof thi sSPECIAL
EDITION ROM sre the same es the Standard ROM. FUNCTION switches
1BIB, 12, and 13 of the 6PEC1AL EDITION ROM version operate
different! ythan the Standard ROM and their operational
characteristics will be described in acre detail later. The
basic differences in these FUNCTIONS are as follows.
nfhjrv pgiTtfrl >1 FUNCTION PARAMETER -MA?TER TUNE
With the Standard ROM, only the message -MASTER TU^ADJ "**
displayed on the LCD display and when moving the DATA ENTRY
•lider the pitch will vary, but it Mill not be displayed-
The SPECIAL EDITION RDM displays the MASTER TUNE message plus
the current value of the MASTER TUNE setting. When the DATA
ENTRY slider is moved the pitch will vary and it Mill also be
displayed, for es ample, Master Tune -0.
HEPKKY pmTCK #8 FUNCTION PARftfiETE&^JaiRl..CfiHTBQU
With the Standard RDM, the FCNCTIONS of snitch «8 ar.j Cl)
the MIDI RECEIVE CHANNEL .FUNCTION, <2> the SYSTEM
AVAILABLE/UNAVAILABLE FUNCTION, and <31, when the 6YBTEM
AVAILABLE FUNCTION is selected, the MIDI TRANSMIT FUNCTION.
-2-

PX7 special EDITION ron.JMSTBUCT.1.BH..f.UlBE
Th. SPECIAL EDITION ROM h.« »M» addition*! function.
•••oci.t.d «ith th. *8 FUNCTION SWITCH. With th. SPECIAL EDITION
ROM, the FUNCTIONS of this switch are a* fellowaj <1> the MIDI
CHANNEL INFDRNATION ON/OFF FUNCTION which >Upm --
whether or not you want to RECEIVE and TRANSMIT, PROG*£"
CONTROL CHANGES., I2> th* MIDI SYSTEM 1KF ORMAT ^
which im th* sain* as th* SYSTEM AVAILABLE /UNAVAILABLE FUNCTION
and th* MIDI TRANSMIT FUNCTION. ,C3> the FC (Foot COfttrolI»r>
VOLUME ON/OFF FUNCTION that allow* you to utim* tha Foot
Control Ear modal at ion input to transmit MIDI VOLUME INFORMATION
<thi sfunction is programmable for aach voica>., and <4) th«
AFTERTDUCH ON/OFF FUNCTION which allow* you to transmit
AFTERTDUCH INFORMATION Cthis function is also programmable .for
aach voict).
With th* Standard ROM, this FUNCTION PARAMETER is u«*d for
th* VOICE INITIALIZE FUNCTION which sats or Initialise VOICE
PARAMETERS to specific conditions in ordar to provide astarting
point for voice programming purpose*.
The SPECIAL EDITION ROM has three FUNCTIONS associated with
th* «10 switch and they ar.j <1) th. VOICE INITIALIZE FUNCTION
that perform* the *am* function as th* Standard ROM VOICE
INITIALIZE FUNCTION., <2> th* SINGLE FUNCTION INITIALIZE OOB
which sets the programmable FUNCTION PARAMETERS of a SINGLE VOICE
to specific conditions, thu* providing aatarting point
EDITING purposes. ,and (3) the ALL FUNCTION INITIALIZE
that sets the programmable FUNCTION PARAMETERS o* all
to th* same *p*cific conditions.
for
FUNCTION
32 VOICES
MEMORY SWITCH *12 FUNCTION PARAMETER -
The Standard ROM ha* no function assigned to SWITCH «X2.
However, with th. SPECIAL EDITION ROM, SWITCH #12 IS assigned to
the MIDI RECEIVE FUNCTION. Thi* function allow* you to set the
MIDI RECEIVE CHANNEL of the DX7 to the OMNI ON MODE or any one o<
the 16 different MIDI channels, 1through 16. R*m*mb*r th*
OMNI ON MODE will .allow the DX7 to receive all incoming MIDI
information, regardless of the MIDI channel number.
ME MORY SWITCH.
The Standard ROM also has no function assigned to SWITCH
*13. Th* SPECIAL EDITION ROM utilize* SWITCH 613 to set the MIDI
TRANSMIT CHANNEL to any one of the 16 different MIDI channels, 1
through 16.
HDW TO INSTALL THX--6£E^AkJEBlXl.P!i-B.Q^l
Before attempting to install the SPECIAL EDITION ROM, pl*a*«
read the fol lowing .Instal latlon Instructions thoroughly and th*n
proceed with the installation. Installation of tha SPECIAL