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DX7 MiniMAX 

Page 5 of 6 

Install v2.10 

 

www.musictechnologiesgroup.com 

Preliminary 

Place the DX7 MiniMAX board gently on the DX7 main board so that the 28 pins that form a DIP 
package align with the vacated IC14 spot.  The 8 pins along the edge should align with IC20 and 
the  other  12  pins  should  align  with  IC21.    Do  not  press  the  board  in  place  yet.  You  can  use  a 
small mirror to check the pin alignment. 
 

  

 

 
Once  you  are  happy  that  all  the  pins  are  aligning  with  the  desired  locations,  firmly  and  evenly 
press the  DX7 MiniMAX board  in  place.  Make a visual check to see that the board is flush with 
the sockets. 
 

 

 
Using  a  screwdriver,  carefully  tighten  the  original  main  board  screw  through  the  DX7  MiniMAX 
board into the nylon standoff. 

Again do not force it or over tighten as this can not only strip 

the standoff, but it can cause the DX7MiniMAX board to change position. It should be tight 
enough so that it cannot work lose

.  Double check the pins. 

 
 
 

Reassembly 

 
Remove all tools from the DX7. Carefully reassemble the DX7 in the reverse order, taking care to 
replace the correct screws in the various locations. If you disconnected the green keybed ground 
strap wire don't forget to screw it back in.  
 
 

Содержание DX7 MiniMAX

Страница 1: ... synthesizers o Avoid carpets in cool dry areas o Dissipate static electricity before handling any system components by touching a grounded metal object o If possible use anti static devices such as wrist straps and floor mats o Take care when installing the board Prevent damage to the connectors by aligning connector pins before you apply pressure A damaged pin can render the board unusable and c...

Страница 2: ...Move the Keybed Remove the Keyboard Rail It can be difficult to see the delicate pins when installing the DX7 MiniMAX board By moving the keybed the chassis with the keys and removing the silver keyboard rail you will have better sight lines and freedom of movement when installing the DX7 MiniMAX board Remove the 4 large external screws from the underside of the keyboard along the front edge The p...

Страница 3: ...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 mod wheel and pitch bend There may also be wire tires and or cable fasteners to deal with Remove the EPROM and SRAM ICs The nex...

Страница 4: ... of these photos near IC23 Install the DX7 MiniMAX Printed Circuit Board Hand 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 Remove the DX7 MiniMAX board from the anti static foam Inspect the bottom of the board to make sure none of the pins have been damaged You sho...

Страница 5: ...venly press the DX7 MiniMAX board in place Make a visual check to see that the board is flush with the sockets Using a screwdriver carefully tighten the original main board screw through the DX7 MiniMAX board into the nylon standoff Again do not force it or over tighten as this can not only strip the standoff but it can cause the DX7MiniMAX board to change position It should be tight enough so tha...

Страница 6: ...to 1 there are only 4 RAM banks numbered 1 to 4 regardless of what the initial LCD value says 3 Press button 13 and set the FUNCTION CONTROL MIDI OUT channel to your preferred value from 1 to 16 usually 1 4 Press button 8 repeatedly until you see FUNCTION CONTROL MIDI IN and set this channel to your preferred value 1 to 16 or All which is OMNI mode Check set the standard DX7 Function settings vers...

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