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DX7 S 

Page 4 of 7 

Install 

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You  now  have  excellent  access  to  the  DX7  main  board.  If  you  do  remove  the  keybed  you  may 
find it easier to remove the small yellow cable and large flat grayish cable at the main-board-end 
rather than from the keybed. You will also need to unclip two small cables on the left end. There 
may also be wire tires and/or cable fasteners to deal with. 
 

 

 
 
 

Remove the EPROM and SRAM ICs 

 

The next step is to 

remove the EPROM and two SRAM ICs

.  Follow the instructions on the next 

page. 

Memory chips in place   

 

 

Memory chips removed 

 

Summary of Contents for Vintage DX7 Special Edition ROM

Page 1: ...form on your DX7 Read over the following installation description and if you feel you are not capable of the work required turn the project over to a qualified technician All Lithium battery repairs m...

Page 2: ...ll o Standard Philips screwdriver Condition of DX7 While the SuperMAX will replace the functionality of damaged or missing EPROM and or SRAM chips it will not correct other problems your vintage synth...

Page 3: ...pty case bottom The photo illustrates the location of the 4 screws You will of course be unscrewing from the underside Loosen the 3 internal screws at the extreme right and left ends that hold the key...

Page 4: ...yellow cable and large flat grayish cable at the main board end rather than from the keybed You will also need to unclip two small cables on the left end There may also be wire tires and or cable fast...

Page 5: ...d tighten the supplied nylon standoff into the screw position near IC23 Tighten it well by hand but there is generally no need to use a tool Do not over tighten or strip the threads Next CAREFULLY rem...

Page 6: ...main board screw through the SuperMAX board into the nylon standoff Do NOT force it or over tighten as this can not only strip the standoff but it can cause the SuperMAX board to torque and change po...

Page 7: ...l player can achieve a MIDI Out note on velocity of 127 using reasonable force Consult the online Yamaha DX7 SuperMAX User Guide for more information on using your upgraded DX7 Problems Almost all ins...

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