7. CHIME switch
The unit has a chime built in generator, that can be activated by the front
panel switch (
fig. 1 ref. 13
), to be used for paging beginning or end.
When chime is activated it has priority over all the other signals and its
volume is set by INPUT1 and MASTER controls.
6. Operations
a. To turn the unit on press the POWER switch.
b. To turn the unit off press the POWER switch again.
c. BASS control modifies the signal lower frequencies output. Set this
control level by personal taste and ambient acoustic character.
d. TREBLE control modifies the signal higher frequencies output. Set
this control level by personal taste and ambient acoustic character.
e. INPUT 1-2-3-4 and AUX IN (INPUT 5) inputs have independent
volume controls. Set these control level by personal taste to decide
for each audio source its own intensity.
f. Turning clockwise the MASTER volume control, the playback level
will raise, turning it counter clockwise it will be lower. To get the best
output level the master volume should be set between an output
level between –20 dB and 0 dB, as shown by 5 lower LEDs
(fig. 1
ref. 3)
. Make sure the two higher LEDs (+3dB and +6dB) are not lit.
These LEDs will indicate that signal is distorted and that MASTER
volume should be decreased.
g. To select the area (ZONE) where sound diffusion is desired, it’s
necessary to press the key close to the chosen section. If you want
to activate simultaneously all the areas, you’ll just have to push the
ALL key.
