Zoom G1 Service Manual page 6

7. Foot switch
1) Connect FS-01 with CONTROL IN connector (J1).
2) Push the foot switch on/off.
Make sure that the values on the display change as follows.
8. Through sound
Input sine wave (440Hz, -20dBm) to the [INPUT] jack (J2) and monitor the output from
the [OUTPUT] jack (J4) with loudspeakers and oscilloscope.
Make sure that the sounds from both channel of [OUTPUT] jack (J4) are at the same
volume, without any noise and improper sound.
If "Mt" or "dL" is indicated on the 7 segment LED, press any key among [BANK UP
・TAP] key (SW1), [STORE] (SW3) and FOOT SWITCH [^] (SW5). Then make sure
that indication is changes to other.
9. SRAM (Delay sound)
1) Press [RHYTHM] (SW2) key and display indicates "dL".
2) Input sine wave (440Hz, -20dBm) to the [INPUT] jack (J2) and monitor the output
from the [OUTPUT] jack (J4) with loudspeakers and oscilloscope.
Make sure that the normal signal is output from Rch and the delayed signal is output
from the Lch of [OUTPUT] jack (J4) when "dL" is constantly indicated.
10. DSP mute
1) Press FOOT SWITCH [v] (SW4) and display indicates "Mt".
2) Input sine wave (440Hz, -20dBm) to the [INPUT] jack (J2) and monitor the output
from the [OUTPUT] jack (J4) with loudspeakers and oscilloscope.
Make sure that there is no output when "Mt" is constantly indicated.
11. Restoring Factory Defaults
1) Power on in normal mode.
If 7segment LED doesn't blink "AL", power on pressing the "STORE" key.
note) If someone make the operation below, after that 7segment LED never show
automatically "AL"
2) Make sure that display blinks "AL"
3) Press [STORE] key (SW3) and display indicates "ok".
4) The units automatically reboot in normal mode.
Expression pedal
OFF (not pushed)
ON (pushed)
- 6 -
Values
00–01
05–09