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.













