Troubleshooting
Appendices
16
If there is no sound, or if you think that the AD-3 may
be malfunctioning, please first go through the follow-
ing checkpoints. If after these checkpoints the prob-
lem is still unresolved, consult your nearest Roland
service center or authorized Roland distributor.
The Power Doesn’t Come On
Are the batteries installed correctly?
Make sure the “+” and “-” ends of the batteries
(p. 8).
Are the batteries dead?
Replace with fresh batteries (p. 8).
Is the AC adaptor (PSA-Series: sold
separately) connected correctly?
Check the connection again.
Is the guitar correctly plugged into the
INPUT jack?
Check the connection again.
When running off batteries, the AD-3 won’t
switch on unless there’s something plugged
into the INPUT jack. This helps prevent run-
ning down the batteries.
No Sound/Low Volume/Different
Volume on the Left and Right
Is the other equipment connected cor-
rectly?
Check the connections again.
Is the volume turned down on the con-
nected amp, mixer, external effects
processor, or other equipment?
Is the Input Level knob turned down
too far?
Is the Output Select switch on the rear
panel set to G.AMP?
When the switch is set to G.AMP, the sounds and
volume levels for left and right output are differ-
ent.
Sound Is Distorted (The peak
indicator lights up frequently.)
Have you adjusted the input level?
Adjust the Input Level knob (p. 11).
Have the Bottom or Top knobs been
turned too far?
When the Bottom or Top knob is turned clock-
wise too far, some input signals may be distorted.
Adjust the Input Level knob (p. 11).
Are the batteries dead?
When the batteries run down, the power indicator
grows dark, and the unit may not run normally.
Replace with fresh batteries (p. 8).
NOTE
Block Diagram
fig.15
INPUT
INPUT
LEVEL
BOTTOM /
TOP
DUAL ANTI-
FEEDBACK
2 x 2
CHORUS
REVERB
OUTPUT
SELECT
ACOUSTIC
GUITAR AMP
SIMULATOR
OUTPUT
LINE-L /
LINE (MONO)
LINE-R /
G.AMP
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