Zoom GFX-3 - Manual (Page 24)

ZOOM CORPORATION
ITOHPIA Iwamotocho 2chome Bldg. 2F, 2-11-2, Iwamoto-cho,
Chiyoda-ku, Tokyo 101-0032, Japan
Web Site: http://www.zoom.co.jp
GFX-3 - 5000-1
■ No sound, or very low volume
• Is the power switch set to ON?
• Are [INPUT] jack and [PHONES/OUTPUT] jack
connected correctly to instrument and
amplifier?
• Is the shielded cable defective?
• Is the GFX-3 set to the mute condition?
• Is the master level parameter set to a low
value?
• Is the expression pedal pushed down?
For some patches, the expression pedal controls the
volume. Set it to a suitable position.
■ Sound is unnaturally distorted
• Adjust level and GAIN parameters of effect
modules.
• Set COMP/ ISO module to OFF.
When a guitar with high output is used with these
effects, unwanted distortion may occur depending
on the DRIVE module setting.
■ High noise levels
• Adjust ZNR parameter. If problem persists, try
reducing GAIN.
If BOOSTER or COMP/ ISO module is used,
try decreasing GAIN parameter of DRIVE
module.
■ Expression pedal on/off switching does
not work properly.
• Try the procedure described in "Calibrating the
Expression Pedal" on page 16.
■ Bypassed sound is unnatural
• The Energize works also in the bypass
condition.
Set the Energize to "oF."
Specifications
Effect Programs 50types
Effect Modules 7 modules
Patch Memory USER: 60 patches
PRESET: 60 patches
Total 120 patches
Sampling Frequency 31.25 kHz
A/D Conversion 20-bit, 64-times oversampling
D/A Conversion 20-bit, 8-times oversampling
Inputs
Guitar input
Standard mono phone jack
Rated input level -20 dBm
Input impedance 470 kilohms
Outputs
Standard stereo phone jack
(for line/headphones)
Maximum output level +3 dBm
Output load impedance
10 kilohms or higher
Display 2-digit 7-segment LED display
Power Requirements
AC adaptor
9 V DC, center minus, 300 mA (ZOOM
AD-0006)
Batteries 4 x IEC R6 (size AA)
Continuous operation: approx.
11 hours (with alkaline batteries)
External Dimensions 323(W) x 175.5 (D) x 70 (H) mm
Weight 2.2 kg (without batteries)
* 0 dBm = 0.775 Vrms
* Design and specifications are subject to change without notice.
Troubleshooting
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