Troubleshooting - Boss MD-2 Owner's Manual

Troubleshooting

Power won't come on/
CHECK indicator doesn't light:
Is the specified adaptor (PSA-series;
sold separately) properly connected?
Check the connection once more (p. 7).
Is the battery low or dead?
Replace with a new battery (p. 10).
Is the guitar connected properly to the
INPUT jack?
Check the connection once more (p. 7).
* To prevent excess battery drainage, turn the
power on without the plug inserted in the
INPUT jack.
* The battery that was supplied with the unit is
for temporary use-intended primarily for
testing its operation. For using the unit for
more extended periods of time, we
recommend the use of alkaline batteries.
* The CHECK indicator is designed for
providing information about effects—such as
their on/off status. It does not indicate
whether the power is on or off.
No sound / Low volume:
Is the MD-2 properly connected to
your instrument?
Check the connection once more (p. 7).
Could the LEVEL knob be turned too
far down?
The further counterclockwise you turn
the LEVEL knob, the more the volume
is reduced when the effect is on. Turn
the LEVEL knob clockwise.
Is the volume turned down on any
guitar amp or effects device you have
connected?
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