Troubleshooting - Boss Drive Zone OD-20 Owner's Manual

Troubleshooting

The power doesn't come on.
Is the guitar connected correctly to the
INPUT jack?
Check the connections again (p. 3–4).
* The unit won't switch on until a plug is
inserted into the INPUT jack.
Have the batteries run down?
Replace with fresh batteries (p. 2).
Is the specified AC adaptor (PSA-series
sold separately) connected correctly?
Check the connections again (p. 3–4).
There is no sound/volume is too
low.
Is the other equipment connected
correctly?
Check the connections again (p. 3–4).
Is the volume turned down on the
connected guitar amp, effects processor,
or other device?
Check the settings on the connected
equipment (p. 3–4).
Cannot switch amp channels
properly
Is the amp's channel switching jack
correctly connected to the OD-20's AMP
CTRL jack?
Check the connections again.
Does the amp's channel switch match
the polarity of the OD-20's Amp
Control?
The OD-20's Amp Control is shorted
when the indicator is off, and open when
the indicator is lit (p. 9).
Confirm how amp's channels are
switched when the circuit is open or
shorted.
The volume level of the
instrument connected to INPUT
jack is too low.
Could you be using a connection cable
that contains a resistor?
Use a connection cable that does not
contain a resistor.
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