Roland OD-20 Specifications download pdf (Page 21)

21

Troubleshooting

The power doesn’t come on.

● Is the guitar connected correctly to the

INPUT jack?

→ Check the connections again (p. 3–4).

* When running on batteries, the unit won't

switch on until a plug is inserted into the

INPUT jack. This helps conserve the batteries.

● 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).

Noise is produced.

● Is the guitar connected correctly to the

INPUT jack?

→ When you are using the AC adaptor, the

power comes on even when a connector is

not plugged into the INPUT jack. This

means that noise may be produced when

nothing is connected to the INPUT jack.

Make sure everything is connected

properly before switching on the power to

your equipment.

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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