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Repair Stories

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AMPS

Ampeg
  SVT Classic Shuts Off
Fender
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  Mini-Twin Conversion
  Princeton 5F2-A ReCap
  Super Twin Inspection
Kay
  703-C Filter Caps
Marshall
  DSL100 Choke & Bleed
Peavey
  6505+ Tube Filaments
  Classic-30 Repair
Selmer
  Little Giant Mk 3
Vox
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KEYBOARDS

Akai
  MPC2000XL Jog Wheel
Farfisa
  Mini Compact Dividers
Korg
  01/W Keybed Removal
  M1 Worn-Out Buttons
  Poly-61 Envelopes
  Triton Disassembly
  Triton Worn-out Buttons
  X3 Worn-out Buttons
  X3 Floppy Drive
  Keys & Contacts:
    M1, 01W, triton, i30 ...

M-Audio
  KeyStation USB Jack
Moog
  Micromoog Repair
  Prodigy Key Contacts
  Rogue Power Jack
Roland
  D-50 Key Contacts
Sequential Circuits
  Pro-One Key Contacts
Yamaha
  MOTIF6,7 Disassembly
  MOTIF Worn-out Buttons
  Keys & Contacts:
    motif, es, DX7, sy85 ...

TECHNIQUE

  Installing IC Sockets
  Soldering Phone Plugs

Yamaha MOTIF6 & MOTIF7    Worn-out Buttons


Yamaha MOTIF control panel buttons Yamaha MOTIF LCD display

These switches fit:
MOTIF6        MOTIF7        MOTIF8,
MOTIF ES6    MOTIF ES7    MOTIF ES8
MOTIF XS6    MOTIF XS7    MOTIF XS8
MOTIF XF6    MOTIF XF7    MOTIF XF8

Click to Enlarge Photo
CLICK TO ENLARGE

Click to Enlarge Photo
CLICK TO ENLARGE

This story shows how to remove the MOTIF's switch circuit boards and replace worn-out tactile switches.

The tact switches live underneath the control panel buttons (see photo, left).  When a switch wears out, the button becomes unreliable and eventually nonresponsive.

There are 3 switch circuit boards.  The left board holds all the buttons left of the display, 5 control sliders, and 4 rotary knobs.  Pull off the slider and rotary knobs before disassembling the synth.

The right board holds all the buttons right of the display, and also the data dial.  Pull off the data dial knob before disassembling.

The center board holds the buttons directly below the display.  These switches tend not to wear out because they get used less.

The MOTIF6-7 Disassembly story is a prerequisite for this story.  It shows how to remove the computer cage and keyboard assembly, which block access to the switch boards.

Before beginning, test each button dozens of times and on several different days.  A switch that misses even one push should be changed while you're in there since this job takes a while to complete.


Buy Tact Switches for the MOTIF here:


Quantity -- for lighting buttons:

FREE SHIPPING in U.S.A.
WE SHIP WORLDWIDE - see Storefront for details


Quantity -- for non-lighting buttons:

FREE SHIPPING in U.S.A.
WE SHIP WORLDWIDE - see Storefront for details


For more information on Yamaha products, visit  The Yamaha Corporation.

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