15
Troubleshooting/Specications
The unit will not power on
• Conrm 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, P13)
• Sound will not be output in the tuner is on.
(
→
P12)
There is a lot of noise
• Conrm that the shielded cable is not the
cause.
• Use a genuine ZOOM AC adapter.
The sound distorts strangely or has an
odd timbre
• Adjust the amount of boost amplication.
(
→
P11)
• Set the pickup selection correctly for the
type of pickup. (
→
P8)
Batteries lose their charge quickly
• Conrm 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. (
→
P12)
Troubleshooting
Specications
Source guitars 16 types
Sampling frequency 44.1 kHz
A/D conversion 24-bit 128× oversampling
D/A conversion 24-bit 128× oversampling
Signal processing 32-bit
Frequency characteristics 20 Hz–20 kHz (+1 dB/−3 dB) (10 kΩ load)
Input Standard mono phone jack
Rated input level: −20 dBu
Input impedance: 10 MΩ
Outputs 1/MONO/PHONES 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)
2 Standard mono phone jack
Maximum output level:
Line +7 dBu (10 kΩ or more output impedance)
BALANCED OUT XLR jack
Output impedance:
100 Ω (HOT-GND, COLD-GND), 200 Ω (HOT-COLD)
PRE/POST (switchable)
GND LIFT (switchable)
S/N (equivalent input noise) 120 dBu
Noise oor (residual noise) −100 dBu
Power
AC adapter: 9 V DC 500 mA center negative (ZOOM AD-16)
Batteries: 2 AA (about 3 hours continuous operation time using alkaline
batteries)
External dimensions 158 mm (D) × 107 mm (W) × 52 mm (H)
USB USB MIDI USB Micro-B
Weight 570 g (Not including batteries)
Note: 0 dBu = 0.775 V
