Yamaha SPX90 Mk2 Repair

Yamaha SPX90 Mk2 repair.

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Description

Yamaha SPX90 Mk2 Repair:

A Yamaha SPX90 Mk2 in for repair.

Faults:

  • The Input LED bargraph doesn’t work
  • The alpha numeric memory number LED display is also dead.

Once opened up it became clear that some kind of liquid spill has eaten away at connectors and wires.

There was also significant internal rust.

Works Done:

  • Power supply was refurbished as these are a ticking time bomb.
  • The rust was treated and panel sprayed.
  • The corrosion was treated.
  • Corroded wires replaced.

spx90 power supply showing signs of overheating

spx90 mk2 internals

spx90 internal frame with serious rust and corrosion

spx90 input display with melted corner

spx90 front frame before rust treatment

spx90 front frame before painting

spx numeric LED connector needs replacing

spx front frame painted

spx front frame painted 2