Crown Audio IQ-P.I.P.-SMT - Manual (Page 10)

Page 10
IQ P.I.P.–SMT
C. Reset Switch
A multifunction reset switch is pro-
vided to restore the
IQ–P.I.P.–SMT to
a prior state. It can be depressed
with a straightened paper clip
through the small hole in the
P.I.P.
panel. Press the reset switch for less
than 2 seconds and all settings, ex-
cept the amplifier model scale fac-
tors, will be reset with “user default”
parameters and the DSPI will flash
once. (If no “user default” settings
have been stored, the unit will be re-
set to the “factory default” settings
described next.) Press the reset
switch for more than 2 seconds and
the same settings will be reset with
“factory default” parameters and the
DSPI will flash twice. After the unit
has been reset to the factory default
settings, it will behave like a standard
P.I.P.-FX until it is reprogrammed by
an
IQ System or it is toggled to the
“user default” settings.
D. AUX Connector
A 3-pin male mini XLR connector is
provided to control auxiliary equip-
ment. When the AUX feature is turned
on, +15 VDC is provided across pin
1 (gnd) and pin 3 (+). A nominal cur-
rent of 10 mA is available. The AUX
connector also includes a high-im-
pedance input that can sense logic
signals.
E. DSPI
The DSPI is a Data Signal Presence
Indicator which flashes whenever a
valid IQ command has been re-
ceived. The indicator can also be
forced to stay on to aid rapid trouble-
shooting of the Crown Bus wiring.
F. Crown Bus Input Connector
A lockable 5-pin female DIN connec-
tor is provided for input connection to
the Crown Bus. A mating Switchcraft
502 series connector can be ordered
from Crown (part C 7776-5). Pin 1 is
negative (–), pin 2 is positive (+), and
pin 3 is ground (gnd). Pins 4 and 5
are not used.
G. Crown Bus Output Connector
A lockable 4-pin female DIN connec-
tor is used for output connection to
the Crown Bus. A mating Switchcraft
502 series connector can be ordered
from Crown (part C 7777-3). Pin 1 is
negative (–) and pin 2 is positive (+).
Pins 3 and 4 are not used.
H. Input Switches (S1, S2)
An 8-section DIP switch is used to
configure each input. These switches
are located on the bottom circuit
board. S1 configures the input of
Channel 1 and S2 configures the in-
put of Channel 2. The switches acti-
vate a microphone preamp and
enable phantom power. The preamp
can be turned off (0 dB gain) or set to
either 20 or 40 dB of gain. See Sec-
tion 4.1.
I. P.I.P. Edge Connector
The gold-plated edge connector of
the top IQ circuit board inserts into
the
P.I.P. connector inside the back of
the amplifier. Use care when install-
ing a
P.I.P. module to be certain that
the edge connector is properly in-
serted into the amplifier’s
P.I.P. con-
nector.
J. Amplifier Output Pad
Jumpers (JP4, JP5)
These jumpers enable the circuitry
that pads the output signal feeding
the
IQ–P.I.P.–SMT so it can be prop-
erly scaled. They should be set to the
“IN” position as marked on the digital