Troubleshooting
Remove the AC cable from the system before opening a system.
Never install or remove the power connector on a module with power on.
If no operation, check the power connection, possibly trying another one. Also inspect the circuit board
for loose cables.
Perform a reset to factory defaults by pressing Set button #1 during power-up.
There are no jumpers on the Q170.
After releasing a Set button, the programmed data is saved internally and this takes a second or two. Be
slow and methodical when programming.
There is a delay between the time MIDI data is received at the input and MIDI data is sent at the filtered
output since an entire message must be analyzed before resending. Under normal playing conditions this
delay is unnoticeable. MIDI thru has no delay and is a direct copy of the MIDI Input.
To clear a channel, simply press its Set button once without sending any MIDI data.
Remember that pressing a Set button more than once without sending data programs special features
which can cause confusing behavior. MIDI Clock is one example.
Remember that sending a note button more than once while the Set button is pressed activates the Tog-
gle on/off and short triggering options.
The gate outputs should not be patched to other outputs in the system, only inputs.
Sometimes continuous controller knobs and sliders send data without being moved because they are
dirty or are sitting on a threshold. If this happens, programming will be erratic because while the Set but-
ton is pressed, undesired CC messages are being sent and programmed. When the Set button is re-
leased, the gate output will fire as the undesired CC messages continue. Often, turning the knobs or
moving the sliders will solve this, especially on older gear.
Q170
MIDI Gates
The time between MIDI input data and Thru output data is ~0s since it's a hardware connection.
The time between the start of MIDI input data and the start of filtered data output is 0.65ms. That in-
creases to 0.75ms if there are 10 notes programmed for each of the 8 channels. This is due to the soft-
ware having to read the entire MIDI message before resending to the filtered output, and the search for
programmed notes.
The time between the start of MIDI clock data and the start of a rising clock edge is between 0.4ms and
1.4ms.
MIDI Time Delays
Summary of Contents for Q170 MIDI Gates
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