6
DRAWMER
CONTROL DESCRIPTION
POWER
On / Standby
The unit has a soft on/off switch on the front panel. With the switch in the CPA-50 is
active and the LED indication beneath lights. With the switch out it is operating in
standby - the standby LED illuminates and the CPA-50 draws 0.5 Watts of power.
STATUS
Fault
Fault:
This is illuminated is the MPA has detected an error via it’s in built sensors,
these include:
Power shut down by over temperature
- If the temperature inside the MPA should
pass the threshold of 100°C minimum to 110°C maximum (105°C typical) the MPA
will shut down for a few moments. The shutdown time is short but increases as the
unit heats up. As well as the illumination of the LED indication this protection mode
will be heard as very short interrupts to the sound.
Over voltage shutdown
. - If the mains voltage exceeds the absolute maximum
rated level of ~ 90-132 / 180-264 VAC the MPA will momentarily shut down and the
Fault LED will illuminate. This protection mode will be heard as very short interrupts
to the sound. In the event of a fault occurring the source of the problem should be
repaired before permanent damage to the system occurs.
Bridge:
To set Bridge mode, to use the
CPA-50 as a monoblock, remove
the cover by unscrewing the four
screws. Set the jumpers on
connectors J7 and J10 to the
position shown in the diagram
(right). Replace the cover.
Note: Use only the left input, and
connect to
R
-
and
L
+
speaker
terminals (R+ & L- are not used).
The Bridge LED will be inactive in
stereo mode, providing
50+50Wrms into 4 Ohms. When
the Bridge LED is illuminated it
indicates that the CPA-50 is set to
Bridge (mono) mode, providing
1x100Wrms into 8 Ohms.
1
2
