Yamaha SPX50D Manuel D'utilisation page 6

Ф UTILITY Button
This button accesses a list of utility functions allowing editing
.of effect titles, MIDI contro! programming and increment
footswitch recall range programming.
(D Direct Recall Buttons (REWDLY Group, MOD & OTHERS,
DIST Group)
These buttons provide fast direct access to the SPX50D's
three major effect groups.
Ф TRIGGER Button
When the TRIGGER button is pressed and its LED indicator
is lit, a footswitch plugged into the rear-panel MEM./TRG.
FOOT SW jack can be used to trigger three of the SPX50D's
effects: ADR-Noise Gate, Reverb & Gate, and Triggered
Pan. Press the TRIGGER button a second time to restore
the foot switch's normal memory selection function.
Ф BYPASS Button
· The BYPASS button switches the selected effect ON ог
OFF, leaving the direct signal only when BYPASS is active.
() TUNER OUT Jack
The TUNER OUT jack can be connected directly to an elec-
tronic guitar tuner allowing convenient tuning without the
need to unplug your instrument from the SPX50D input and
connect it to the tuner.
Ф INPUT Jack
Your instrument or other audio-signal source can be con-
nected here or to the duplicate INPUT jack provided on the
rear panel. The front-panel INPUT jack takes priority, so if
sources are plugged into both the front- and rear-panel IN-
PUTS, only the front-panel INPUT will be active. The INPUT
accepts a mono 1/4" phone plug, and is unbalanced.