Johnson Amplification J8 - Manual (Page 6)

Bank Up/Tuner Foot Switch
This foot switch will advance through the user banks of presets. Each successive
press of the Bank Up Switch will advance to the next bank. Once a new bank has
been selected, the 1, 2, and 3 switches will flash asking you to select a preset within
that bank. The LED display will show the new bank number at this time. The Amp
will wait 5 seconds for you to select a preset within that bank. If no preset selection
is made within 5 seconds, the Amp will revert back to the current bank and preset.
Tuner
The Bank Up switch will also activate the tuner. To activate the tuner, press and hold
the Bank Up switch for 2 seconds. Once the tuner mode is activated, the LED display
will read "
tu." At that point, any note played will register in the display. The 7
tuner LEDs above the display will provide an indication as to whether the note is
flat, sharp, or in tune. When the single green LED in the center is lit, the note is in
tune. If LEDs to the left are lit, your note is flat and must be tuned up. If LEDs to the
right are lit, your note is sharp and must be tuned down. To exit the tuner mode,
simply press any footswitch.
Numbered Foot Switches
The 3 numbered foot switches will access one of the three presets or channels in
the currently selected bank. Each of these switches has an LED directly above it to
indicate the currently selected preset. These switches correspond to switches 1-3
when assigning functions in the Millennium Amps. See the Millennium User’s Guide
for instructions on switch assignments.
Effect Foot Switches
The 3 Effect foot switches correspond to the 3 effect types available in the Marquis
and Mirage (Mod/Pitch, Delay, and Reverb). These switches turn the effects on and
off on the fly. Each switch has an LED directly above it to indicate the status of the
effect. On the Millennium Amps, these switches correspond to switches 7-9. See the
Millennium User Guide for instructions on switch assignments.
Expression Pedal
The Expression pedal is used for real time control of effect parameters. On the
Marquis and Mirage Series amps, the expression pedal can be used as a volume
pedal or a wah wah pedal. In normal operation of these amps, the J8 will be a
volume pedal. To change the function to a wah, simply rock the pedal all the way
forward (toe down) and apply pressure on the toe. This will engage the switch and
activate the wah. To disengage the wah effect, just repeat this toe down procedure
and the expression pedal will control the volume again.On the Millennium Series
amps, the expression pedal can control any parameter. The Expression pedal toe
switch corresponds to the 0 switch on the Millennium Amps. See the Millennium
User Guide for instructions on expression pedal and switch assignments.