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Troubleshooting
1.The amp isn’t powering up when the POWER switch is ON.
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Is the power cable plugged into the AC power connector on the rear panel of the
amp?
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Is the power cable plugged into an AC outlet?
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Is the AC outlet switched on and actually working?
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Does the power cable work?
2. There’s no sound coming from the amp
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Is your guitar turned up?
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Are both ends of your guitar cable plugged into where they should be?
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Is your guitar cable working?
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Is the top panel MASTER volume turned up?
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Do you have headphones or anything else plugged into the amp’s rear panel
LINE/PHONE jack? If “yes,” unplug!
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(For the AD50VT/AD100VT) Could a cable be connected to the rear panel
[EXTERNAL SPEAKER OUT] jack?
Disconnect this jack if you’re not using an external speaker.
If you don’t hear sound from a connected external speaker, make sure that your
speaker cable and external speaker are not broken or malfunctioning.
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Check the settings of the GAIN, VOLUME, TREBLE, MIDDLE and BASS. On cer-
tain amp types, if the TREBLE, MIDDLE, and BASS controls are all turned down,
there will be little or no sound coming from the amp due to the way the circuit of
the original works.
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If you’re in Manual mode (the MANUAL LED lit), turn the following controls above
their minimum setting: GAIN, VOLUME, TREBLE, MIDDLE, and BASS.
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(AD100VT users) Could a cable be connected to only the LOOP [RETURN] jack
of the rear panel?
Connect the cable from the LOOP [SEND] jack to your external effect unit, and
connect the output of that effect unit to the LOOP [RETURN] jack.
Adjust the output level of your external effect unit to an appropriate volume.
3. The amp doesn’t seem very loud
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Is your guitar turned up?
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Is the amp’s MASTER volume turned down low?
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(If you’re using the AD30VT/AD50VT/AD100VT) Is the POWER LEVEL knob on
the rear panel turned down?
