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DX7 S 

Page 2 of 7 

Install 

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  Avoid carpets in cool, dry areas.  

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  Dissipate  static  electricity  before  handling  any  system  components  by  touching  a 

grounded metal object. 

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  If possible, use anti-static devices, such as wrist straps and floor mats. 

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  Take care when installing the board. A damaged pin can render the board unusable. 

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  Prevent damage to the connectors by aligning connector pins before you apply pressure. 

A  damaged  pin  can  render  the  board  unusable  and  can  cause  damage  to  system 
components at power-on. 

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  If disconnecting a cable, always pull on the cable connector, not on the cable itself. 

 
 

Tools Required (SuperMAX installation NOT including battery holder) 

 

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  Standard flat-head screwdriver (small). 

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  Standard Philips screwdriver. 

 
 

Condition of DX7 

 
While the S will replace the functionality of damaged or missing EPROM and/or SRAM 
chips,  it  will  not  correct  other  problems  your  vintage  synthesizer  may  have.  It  is  recommended 
that the synth be in otherwise good condition before beginning the installation. For instance, the 
battery  voltage  should  be  checked  and  the  battery  replaced/repaired  by  a  tech  if  necessary. 
Sockets  for  the  EPROM  and  SRAM  chips  should  be  in  good  working  order  and  not  be  dirty, 
oxidized,  rusted  or  otherwise  compromised.    If  repair  is  required,  do  it  before  installing 
S.  
 
 

2: Installation 

 

  Back up your patches if they are important to you!

 

 

 

Open the DX7 

 
Using a Philips head screwdriver, 

remove the 5 screws from the front panel

. Two are located 

on the left front. Two are located on the right front. A final one is located on the right rear. Set the 
screws aside, noting that the rear panel one is the shortest. 

              

 

 
 

Summary of Contents for SuperMAX+

Page 1: ...rform 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 must be done by a qualified technician due to the explosive nature of the CR2032 battery Precautions High Voltage Safety Warning Turn the DX7 power switch OFF and disconnect the AC power cable before ...

Page 2: ...all 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 synthesizer may have It is recommended that the synth be in otherwise good condition before beginning the installation For instance the battery voltage should be checked and the battery replaced repaired ...

Page 3: ...mpty 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 keybed in place It is not necessary to extract them from the holes they reside in Carefully lift the keybed slightly up and out toward yourself an inch or so You don t need to move it much You will prob...

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 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 ...

Page 5: ...nd 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 remove the SuperMAX board from its anti static packaging Inspect the bottom of the board to make sure none of the pins have been damaged or have any debris on them Identify your SuperMAX board version R...

Page 6: ...l 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 position It should be tight enough so that it cannot work lose Double check the pins Reassembly Carefully reassemble the DX7 in the reverse order taking care to replace the correct screws in the variou...

Page 7: ...al 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 installation problems are due to poor board seating or connections Remove the board check all the pins for debris contamination bending etc Then reinstall Battery Holder Option The information here is d...

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