INSTALLING THE PQM
STEP 1: Locating the Connectors
INSTALLING THE PQM
STEP 2: Adjusting the PQM
INSTALLING THE PQM
STEP 3: Final Installation of the PQM
A Turnoff amplifier Remove PQM from its “vertical”
mounting position See Step
B Align the white standoff with the hole on the rear of the
PQM circuit board Next% align the blocked receptacle with
the missing pin on the mounting port Press the PQM onto
the port and secure it to the standoff by applying down
ward pressure
C Turn amp on and audition the system If further adjustment is
necessary% the PQM may be adjusted when mounted in this
final mounting position
A Remove the PQM from the packaging and inspect the
circuit board
B Locate the header connectors soldered onto the top and
bottom of the circuit board See illustration ,
C Notice that one of the openings on both header connectors is
blocked by white filler material The PQM’s mounting
system utilizes this blocked receptacle as the “key” to insure
proper positioning when installing the PQM onto the
amplifier’s mounting port See illustration and /
D During the “tuning process”% the PQM may be installed
“vertically” using the right angle header connector See illustration
However% the final mounting position must be in a “horizontal”
position (using the header connector on the bottom of the circuit
board) to allow the cover to be reattached See illustration /
The PQM is designed to be adjusted with
the aid of a Real Time Spectrum Analyzer
The analyzer will provide visual feedback
when following this simple procedure
A Plugin one of the supplied frequency
modules into the PQM’s module socket It is
from this module’s range of frequencies
that you will select your center frequency
B Turnoff amplifier Remove amplifier
cover and locate the Accessory Port
C Remove the two header jumpers and
locate the missing pin (“key”) on the port
D Align the blocked receptacle on the
right angle header connector with the
missing pin and press the PQM onto the
mounting port Note: after adjusting% you
must follow Step / for final installation
E Set system to a moderate volume level
and play pink noise
F Rotate the boost/cut control clockwise
(fully) to 9,: dB The RTA’s display will
now show you the position of the center
frequency and “Q” settings of the PQM
G Rotate the frequency control to the frequency you wish to adjust
H Next% rotate the “Q” control to the width of the dip or peak in
response that you are equalizing
I Finally% adjust the gain control to achieve the desired response curve
STAND
OFF MOUNTING HOLE
BOOST
/
CUT
FREQUENCY
VERTICAL HEADER
ACCESSORY PORT
FREQ
MODULE
SOCKET
“Q”
iillllu
ussttrra
attiio
on
n
iillllu
ussttrra
attiio
on
n ,,
BOTTOM OF
PQM
CIRCUIT BOARD
TOP OF
PQM
CIRCUIT BOARD
HEADER CONNECTOR
LOCATING
“
KEY
”
RIGHT ANGLE
HEADER CONNECTOR
iillllu
ussttrra
attiio
on
n //
All manuals and user guides at all-guides.com
