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ZOOM G7.1ut
68
Troubleshooting
■ No sound or very low volume
• Make sure that the POWER switch is on.
• Try adjusting the LEVEL knob.
• Make sure that the INPUT jack and the
guitar, and the OUTPUT L/MONO (or
OUTPUT R) jack and the guitar amp are
connected properly.
• Make sure that the shielded cable is not
defective.
• Try adjusting the patch level (→ p. 16).
• Make sure that the G7.1ut is not in mute
mode (→ p. 20).
• For some patches, the volume can be
adjusted with the expression pedal. Make
sure that a suitable volume setting has been
selected with the pedal.
■ Sound is distorted
• Try lowering the Gain and Level parameters
of the PRE-AMP module.
• Try lowering the setting of the [TUBE]
control and [BOOST] control.
■ Foot switches do not operate properly
• Check the setting of the function foot switch
(→ p. 34).
• Check the current operation mode. The foot
switch action is different in play mode and
manual mode.
■ Sound in bypass condition is strange
• Try lowering the setting of the [TUBE]
control and [BOOST] control.
The Energizer operates also in the bypass
condition.
■ Noise is noticeable
• Make sure that only a ZOOM AC adapter is
used.
• Adjust the ZNR setting.
• Move around the room to check for RF noise
in relation to the pick ups, etc.
• Try lowering the Gain and Level parameters
of the PRE-AMP module.
• Check the settings of the built-in expression
pedal (→ p. 30).
Depending on the parameter assigned to the
expression pedal, a pedal action causing
drastic parameter change may result in noise.
■ Cannot send or receive MIDI messages
• Make sure that the MIDI IN connector of the
G7.1ut and the MIDI OUT connector of the
other MIDI device, and the MIDI OUT
connector of the G7.1ut and the MIDI IN
connector of the other MIDI device are
connected properly.
• Check the MIDI channel setting (→ p. 37).
• Check whether send/receive of the respective
type of MIDI message is enabled
(→ p. 39, 42).
■ On/off switching with expression pedal
does not work properly
• Verify that the module on/off function
(parameter knob 4) is set to "Enable" for
PDF1 - PDL4 in the TOTAL module
(→ p. 31).
ZOOM G7.1ut
69
Specifications
Number of effect types 92
Number of effect modules 9 simultaneously usable modules
Patch memory User area : 4 patches x 20 banks = 80 (read/write enabled)
Preset area : 4 patches x 20 banks = 80 (read only)
Total: 160 patches
Sampling frequency 96 kHz
A/D conversion 24-bit, 64-times oversampling
D/A conversion 24-bit, 128-times oversampling
Signal processing 32-bit
Frequency response 20 Hz - 40 kHz +1.0 dB, -3.0 dB (10 kilohm load)
Display 2-digit 7-segment LED display
16-digit 2-line backlit LCD
Inputs
Guitar input Standard monaural phone jack
Rated input level: -10 dBm
Input impedance: 1 megohm
AUX input Mini phone jack (stereo)
Rated input level: -10 dBm
Input impedance: 10 kilohms
Outputs
Line output Standard monaural phone jack x 2
Rated output level: -10 dBm/+4 dBm (switchable)
Maximum output level: +19 dBm (into load impedance of 10 kilohms or
more)
Output impedance: 1 kilohm or less
Headphone output Standard stereo phone jack
Rated output: 60 m W (into 32-ohm load), 20 m W (into 300-ohm load)
Output impedance: 47 kilohm
Tube circuitry 12AX7 x 1
Control input FP01/FP02 input
Control connectors MIDI OUT, MIDI IN
USB interface
PC interface 16-bit (record/play, stereo)
Sampling frequencies 32 kHz, 44.1 kHz, 48 kHz
Power requirements 15 V AC, 1.5 A (from supplied AC adapter AD-0012)
Dimensions 235 (D) x 460 (W) x 81 (H) mm
Weight 4.0 kg
Optional accessory Expression pedal FP02