Preparation

Check the condition of your Wurlitzer

Before installing MIDIfy, make sure your Wurlitzer is in good mechanical condition and properly regulated. The keyboard must be level, and the key frame must sit flush in the case and be securely fastened.

Key dip should be between 9.5 and 10 mm.

Complete any necessary repairs or regulation before starting the installation.

Remove the cover

Switch off the instrument and disconnect it from the mains before opening it.

Remove the screws underneath the front of the instrument, then pull off the control knob caps. Remove the two screws on top. Open the cover, unhook it and set it aside.

Release the amplifier board

Remove the two screws on the right and the two screws on the left securing the amplifier assembly.

If fitted, remove the ground screw next to the transformer and detach the green ground wire from it. Reinsert the screw to keep it safe for reassembly.

Remove the potentiometer at the lower left from its mounting.

Release the preamp board

Release the shielding plate to access the preamp mounting screws. Undo the two hex screws securing the preamp board from above, then remove the preamp board from its mounting. Reinsert the screws to keep them safe for reassembly.

Remove the amp rail

Once the amplifier assembly, ground wire, potentiometer and preamp board have been released, lift out the amp rail and set it aside.