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Symptom Cause Page
Power will not turn on
Power will not turn on: Are the AC adaptor and AC cord connected correctly? p. 4
Is the AC cord correctly connected to an AC outlet? p. 4
Are the batteries installed correctly?
Could the batteries have run low?
p. 4
No sound
Is the external equipment connected correctly? p. 5
If headphones are connected, no sound will be output from the speakers. p. 6
Are each channel’s level knob and the [VOLUME] knob adjusted correctly? p. 5, p. 6
Is the AUX IN [LEVEL] knob adjusted correctly? p. 9
Could the batteries have run low?
The POWER indicator will dim when the batteries run low. If the batteries run even lower, the POWER indicator will blink.
Please install fresh batteries.
p. 4
Sound is distorted
Could each channel’s level knob or [VOLUME] knob be raised excessively? p. 5
Is the input level from the connected device appropriate? p. 5
Insucient volume
Are each channel’s level knob or [VOLUME] knob adjusted correctly? p. 5
Is the input level from the connected device appropriate? p. 8
Could multiple devices be connected to AUX IN jack? p. 9
Could the batteries have run low?
The POWER indicator will dim when the batteries run low. If the batteries run even lower, the POWER indicator will blink.
Please install fresh batteries.
p. 4
Eect not applied
Could the [CHORUS] switch be turned o? p. 7
Is the [REVERB/AMBIENCE] knob adjusted correctly? p. 7
Could you have used a foot switch to turn o the eect? p. 7
The eect cannot be applied to AUX IN. p. 9
Troubleshooting
If the system does not work as you expect, check the following points rst.
Block Diagram
MIC/LINE INPUT
GUITAR INPUT
STEREO EFFECT
CHORUS
REVERB/AMBIENCE
AUX
L/R
AUX IN
AUX
(STEREO)
LEVEL
LOOPER
LINE OUT
L/R
VOLUME
MUTE
ANTI
FEEDBACK
POWER AMP
SPEAKER R
SPEAKER L
PHONES
(STEREO)
R
L
REC/PLAY/OVERDUB
STOP/CLEAR
REVERB/AMBIENCE ON/OFF
CHORUS ON/OFF
FOOT SW
LOOPER
FOOT SW
EFFECTS
GUITAR CHANNEL
TREBLEMIDDLEBASSVOLUME
MIC/LINE CHANNEL
TREBLEBASSVOLUME