G    The Synthi A  I/O mods

From left to right :


*  The left one is connected to the input of the DC shifter/amplifier, not anymore as output for headphones.
   That output is moved to the place of the pushbutton next to the joystick (H). That button is moved to the ES area.

*  The four seperate outputs, having both the AC and DC lines of output channels 1 and 2, are reduced to two outputs.
   The AC or DC can be chosen with a switch.

*  The two spare connectors have a direct output from Envelope Shaper and Ring Modulator. In my case.

*  Under these ES - RM outputs the external inputs for osc. sync (A) and osc. phase (B) modulation.

*  At the right the same : Four connectors with 2 line and 2 microphone going to the 2 input channels, reduced to two.
   I skipped the microphone option. Decided to use external mic. preamps to get a line signal.

*  3-way Switches to prevent a possible signals conflict at input channels 1 and 2 when also the KS is connected.

*  The two spare inputs '3' and '4' are directly connected to patchboard lines 1 and 2.
   The original output channel signals at these lines were removed. There are other ways to get feedback.