Yamaha Vintage DX7 Special Edition ROM, Instruction Manual

Page 1: ...TRUCTION 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 shou...

Page 2: ...FF 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 FUNCTIO...

Page 3: ...t 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 R...

Page 4: ...lso two FUNCTION PARAMETERS of switch B c 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 des...

Page 5: ...ICE 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...

Page 6: ...Clnot words NO IC1S NO MODIFICATION If there are two ROM ICs on in tha 1C 1 4 sockat and ona in the IC15 sockat ln th_ modification Is required If you do not have experience In th area of soldering a...

Page 7: ...B 1 PHILLIPS HEAD TAPPING TYPE SIZE 4XBmm FIGURE 2 3 Carefully lift up the edge of the DX7 s front control panel v closest to the keyboard and open it all the way until it is resting against the back...

Page 8: ...ould be positioned so thet it points to the right hend side of the DX7 Now carefully piece the blade of a small flat blade screwdriver between the IC14 and Its socket Gently pry up IC 1 4 first on one...

Page 9: ...mode or condition that was lest set up on the front control panel Make sure that you can select various voi ces and pi ay the keyboard to verify that the DX7 produces a sound when an amplif ier or pa...

Page 10: ...oAi p W 7 W r n h fwHwnf eiNNP eh P VI A fc rfNU iO E3t3 M r fc fr rAe ff M FCPS L3E3 3i_3irl e y c j ew FIGURE S Before proceeding you should verify the present condition of aach FUNCTION Sometime wh...

Page 11: ...ES fin adjustment RSL WASTER TUNE then the DX7 tuning i a t ao that the A3 not or pitch ha frequency of 44B Herte The MASTER TUNE eetting or FUNCTION PARAMETER i common type data and therefore you can...

Page 12: ...IGURE 7 FIGURE B shows that in order to select the MIDI CHANNEL INFORMATION to the ON condition imply move the DATA ENTRY SLIDER to the MAXIMUM position or press the VES I ON SWITCH The LCD Display wi...

Page 13: ...EIVE NOTE DN DFF MIDI MESSAGES PITCH BEND MIDI MESSAGES end SUSTAIN CONTROL MIDI MESSAGES However theDXTNil l NOT TRANSMIT or RECEIVE AFTERTOUCH MESSAGES PROGRAM WA E MESSAGES And CONTROL CHANGE MESSA...

Page 14: ...i t ion hown in FIGURE 11 indicate that AFTERTDUCH and MODULATION MESSAGES can be both TRANSMITTED and RECEIVED TRANSMIT CNAMCttftlSI I6S HCH CHANNEL INFORMATION FUNCTION 1 ON i i e tnii taro m tl r I...

Page 15: ...o the MAXIMUM position or press the YES 1 0N SWITCH The LCD Display will then read FUNCTION CONTROL Midi Sy Infos ON With the MIDI SYSTEM INFORMATION FUNCTION ON it will allow you tc TRANSMIT the PARA...

Page 16: ...on pr m th MEMORY SWITCH 0 gain and th n the LCD display Will prompt you with th following meBBagei FUNCTION CONTROL MIDI Tr n mit Pressing the YEB 1 ON SWITCH activate the MIDI TRANSMISSION d 4 all 3...

Page 17: ...h LCD Display will then indict th FUNCTION h s b n s t to the ON condition as shown below FUNCTION CONTROL FC Volume i ON You c n set the FUNCTION b ck to pressing the NO 1 OFF SWITCH or moving the DA...

Page 18: ...TION is DN the FC VOLUME INFORMATION can be TRANSMITTED The RECEIVE cheracteri sties are the aame at those shown in FIGURE I3B The standard VOLUME I NFORMAT I OM jjo cJ C MODULATION INFORMATION can bo...

Page 19: ...QUCfcL IiiEP BBXl M P PE The AFTERTOUCH INFORMATION ON OFF FUNCT I ON U 0 s you to select whether or not you want to TRANSMIT AFTERTOUCH INFORMATION This FUNCTION is also programmable per VOICE The AF...

Page 20: ...acter I sti ea whan th AFTERTOUCH INFORMATION FUNCTION im art to th OFF condition In th OFF condition th 0X7 will MSI TRANSMIT AFTERTDUCH INFORMATION Thi FUNCTION i p ciany 1 when you don t uni to rec...

Page 21: ...FUNCTION is ON th DX7 Hi 1 1 TRANSMIT AFTERTOUCH INFORMATION provided th MIDr CHANNEL INFORMATION FUNCTION i Iso set to the ON condition Th RECEIVE char cteri mt c Br the same those ahown in FIGURE I...

Page 22: ...point for programing FUNCT 3 CN PARAMETER5 H you are till in the FUNCTlON MOBE you can select this JOB or FUNCTION by pressing MEMORY SWlTCH lB a IPCOnd time 14 you ere not in thi The LCD the FUNCTION...

Page 23: ...e referring to FIGURE 17 if you a l ct d th VOICE stored at MEMORY SWITCH 1 when you implement th SINGLE FUNCTION INITIALIZE JOB two things would happen tl The VOICE PARAMETERS ar RECALLED to th VOICE...

Page 24: ...HOWN IN FIGURE IB THEREFORE ANY PREVIOUS FUNCTION PARAMETER BETTINGS WILL BE WRITTEN OVER OR REPLACE BY THE PRES FUNCTION PARAMETER SETTINGS Normally you mmIH um th1 FUNCTION when you have loaded a n...

Page 25: ...ncoming MIDI Information regardless of the MIDI channel number To select this FUNCTION If you mrm till in th FUNCTION MODE mi mpl y pr MEMORY SWITCH 12 If you re ot FUNCTION MODE press th FUNCTION MOD...

Page 26: ...displaying the message FUNCTION CONTROL mdi Trns Ch WHERE THE MIDI CHANNEL NUMBER You can now el act the MIDI TRANSMIT FUNCTION to any one o 16 MIDI CHANNELS by using either the EN 2T met YES 1 0N an...

Page 27: ...t at 9B or lass works in tha same nn r as it doaa In tha mt r a RDM Nh n sat at ff th pitch ill start t axihuP L1 and then drop to L2 El kJ aTJ JEESX_flBCE Tha TEST MODE is utilix d by th SERVICE TECH...

Page 28: ...0 I CE F UNCT I ONS 2 POLY MONO MODE SELECTION POLY OR MONO 3 PITCH BEND RANGE 0 TO 9 9 7 PITCH BEND STEP 0 TO 12 PORTAMENTO MODE KEY PITCH FOLLOW OR RETAIN WITH SUSTAIN GLISSANDO ON OFF OF F P 0 RT A...

Page 29: ...BIAS ON OFF 25 BREATH CONTROL RANGE 0 TO 99 2 6 2 7 2 8 BREATH CONTROL PITCH ON OFF BREATH CONTROL AMPLITUDE ON OFF BREATH CONTROL EG BIAS ON OFF 29 3 1 AFTERTOUCH RANGE 0 TO 99 AFTERTOUCH PITCH ON OF...

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Page 31: ...ification ere listed belcmt 1 A PHILLIPS TYPE SCREW DRIVER 2 A SMALL FLAT BLADE SCREW DRIVER 3 A SOLDERING IRON 4 A SOLDER VACUUM OR SOLDER WICK 5 BOLDER fc NEEDLE NOSE PLIERS For units with teo Syste...

Page 32: ...C14 for ure reference Remove the IC14 end IC15 ROM IC by utilising the SMALL FLAT BLADE acrewdri ver to carefully Pr y th 1 lose froff their reapective aockete i octtc the tNO 10 OHM RESISTORS between...

Page 33: ...tioned then careful ly insert the RON C Inspect your work thoroughly to eske sure thet no pins heve been bent under or damaged during insertion Hake a Quick operational test of the DX7 by doming the f...

Page 34: ...e ROM to examine it ftlao If the unit waa modifiad from two Syatem ROM t up tD a aingl Syatam ROM t up go back and verify each STEP of the modification procedur For example make aure the two IB OHM RE...

Page 35: ...xer la YES than go to Cjs_JHiLJ9BM I SIlJ2l r THE nODIFICftTlON CHECK Car fully go through a ch STEP of the aodlf jc tlon procadur and aura that oh STEP p rfora d corractly Once you verify each STEP Q...

Page 36: ...he Di play appear to be working correctly If the an wer i NO then go to R JMjLflBIfilNftk WW JrMSCK If the answer is YES then go to THg SP QNP CHECK f THE SOUND CHECK Gel act the an Internal Voice by...

Page 37: ...N Onca th FUNCTION has baan rasat you et it to tha condition that you require than go to Ouestion 11 If th answer to Question IB ia than t unit hould be operating correctly and this and tha TROUB1 EBH...

Page 38: ...Y CHECK QUESTION 1 SYMPTOM AND PROBABLE CAUSE PROBABLE CAUSE D X 7 NOT PLUGGED IN D X 7 NOT TURNED ON BAD TUSE OR POWER SUPPLY PROBABLE CAUSE IF IT APPL I E S ERROR IN PERFORM MOD l F I CAT I ON SPECI...

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Page 40: ...DX7 SPECIAL EDITION R01 INSTRUCT I ON BUIDC TROUBLESHOOTING CHART CONTINUED FROM PAGE 37 FROM PAGE 37 39...

Page 41: ...PX7 SPECIAL EDITION ROW INSTRUCTION GUIDE TROUBLESHOOTING CHART CONTINUED FROM PACE 3 fi 3...

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Page 43: ...DX7 SPECIAL COITION RON INSTRUCTION GUI DC mu mu MB mini rvwct io...