User manual

All types of installation with the Audio/CV Input sockets, detector circuits and LEDs (

TR-

606-1

TR-808-1

TB-303-2

and

TB-303-6

) can be equipped with an optional Enable/Disable

Toggleswitch which enables both inversion circuits if it is in the up or down position. The

centre position disables the inversion circuits. On the TB-303 Devil Fish and TR-606, this

switch is located to the upper right of the Tempo knob. The photo at the start of this manual

shows a centre-off Audio In to Filter switch in this location. If both switches are required,

they are mounted side by side in approximately this location.

The down position (Enable) is momentary – the toggle spring-returns to centre (Disable).

When this is switch is in the centre position, the detector circuits cannot be activated, so the

LEDs do not turn on and there can be no inversion of memory bank address bits (or for

TB-

303-6

, inversion of the bits from the two switches which will be used both for memory bank

address, and potentially for MIDI In Channel switching)