Troubleshooting; Specifications - Zoom AC-3 Operation Manual

Troubleshooting

The unit will not power on
• Confirm that the POWER switch is set to
ON.
• If using batteries, confirm that they are
still charged.
There is no sound or output is very quiet
• Check the connections. ( → P6, P17)
• Sound will not be output in the tuner is on.
( → P16)
There is a lot of noise
• Confirm that the shielded cable is not the
cause.
• Use a genuine ZOOM AC adapter.

Specifications

Source guitars
Target guitars
Effect types
Sampling frequency
A/D conversion
D/A conversion
Signal processing
Frequency characteristics
Input
Outputs L/MONO/PHONES
R
BALANCED OUT-L
BALANCED OUT-R
S/N (equivalent input noise)
Noise floor (residual noise)
Control input
Power
External dimensions
USB
Weight
Options
Note: 0 dBu = 0.775 V
The sound distorts strangely or has an odd timbre
• Adjust the amount of boost amplification.
( → P13)
• Set the pickup selection correctly for the
type of pickup. ( → P8)
• Adjust the amount of compression. ( →
P12)
Batteries lose their charge quickly
• Confirm that you are not using manganese
batteries. Alkaline batteries should provide
about 3 hours of continuous operation.
• Confirm that the battery type setting is
correct. ( → P16)
The effect is not working
• Adjust the parameter knobs. ( → P14)
16 types
15 types
9 types
44.1 kHz
24-bit 128 x oversampling
24-bit 128 x oversampling
32-bit
20 Hz–20 kHz (+1 dB/-3 dB) (10 kΩ load)
Standard mono phone jack
Rated input level: -20 dBu
Input impedance: 10 MΩ
Standard stereo phone jack (combined line/headphone)
Maximum output level: Line +7 dBu (10 kΩ or more output impedance)
Headphones 8 mW + 8 mW (32 Ω load)
Standard mono phone jack
Maximum output level: Line +7 dBu (10 kΩ or more output impedance)
XLR jack
Output impedance: 100 Ω (HOT-GND, COLD-GND), 200 Ω (HOT-COLD)
PRE/POST (switchable)
GND LIFT (switchable)
XLR jack
Output impedance: 100 Ω (HOT-GND, COLD-GND), 200 Ω (HOT-COLD)
GND LIFT (switchable)
120 dBu
-100 dBu
FS01 Input
AC adapter: 9 V DC 500 mA center negative (ZOOM AD-16)
Batteries: 2 AA (about 3 hours continuous operation time using alkaline batteries)
158 mm(D) X 237 mm(W) X 52 mm(H)
USB MIDI USB Micro-B
1150 g(Not including batteries)
FS01 foot switch
19