Sequential Pro One - Oscillator A Controls

12, Switch TO OSC B PW off, Switch TO FILTER to DIR. The LFO should now
modulate the filter cutoff frequency, giving a "wah-wah" effect.
13. Switch LFO ROUTE from DIRECT to WHEEL and repeat steps 8 - 12 except switch
the destinations to WHEEL (instead of DIR) to test the WHEEL desfinazon paths.
1-10 BACK PAEL TEST
,I
1. If desired, connect electric piano, guitar, or microphone to AUDIO IN. Switch mode
to EXT. Raise MIX NOISE/EXT knob and adjust for adequate gating by the external
signal.
2. With a suitable patch, plug one end of a mono phone cable into 36 FJLT CV IN. This
should disable the FILTER KEYBOARD AMOUNT knob. Connect other end to CV OUT,
Unit should play normally. Disconnect cable.
3. Plug one end of mono phone cable to 52 CV IN. This should disable the keyboard.
Connect other end to CV OUT, Unit should play normally. Remove cable.
4. If a GATE source is avaitable connect to GATEjCLK IN, and switch MODE to
REPEATJEXT check that the envelopes are gated and sequencer advanced with each
pulse.
5. GATE OUT can be checked with a voltmeter. The output goes from 0 to +5V when a
key is pressed.
1-1 1 TONING FLOW CHART
Figure 1-9 on the next page is a flow chart for selectively checking Pro-One tuning.
Especially because most tuning trimmers are accessible to the owner, whenever the
Pro-One Is grossly out of tune it is probably best to completely retune according to
Section 5, below or in the the Operation Manual, CMIOOB. But often only a couple of
trimmers may need "touching-up," in which case following the chart may save you
significant time,