Panasonic RAMSA WS-A240 Operating Instructions Manual page 12

INFORMATION FOR QUALIFIED SERVICE PERSONNEL
CAUTIONS:
These Servicing instructions are for use by qualified
personnet only. To avoid electric shock do not perform
any servicing other than that contained in the
Operating Instructions unless you are qualified to do
so. Refer all servicing to qualified service personnel.
SELECTING THE OPTIMUM SIGNAL PROCESSING
The WS-SP2A Subwoofer Processor is shipped from the
factory with the internal signal processing switches set
in position 1 for VLF I, output A and B and position A for
VLF Ii switches. This provides optimum bandpass process-
ing for the RAMSA model WS-A200 loudspeakers when
used with WS-A240 subwoofers. Other main loudspeak-
er systems may require different switch settings. Although
the signal processing in the WS-SP2A has been optimized
for various RAMSA loudspeaker systems, the WS-A240
and WS-SP2A may be successfully used with other brands
of main loudspeakers by observing these instructions. The
following procedure will enable the selection of optimum
signal processing when other than RAMSA WS-A200 main
loudspeaker systems are to be used.
If the WS-SP2A is installed in a system, switch off all pow-
er amplifiers and disconnect the input and output signal
(Rear)
339094
CAUTIONS:
Before proceeding with disassembly, be sure to turn
off the power and unplug the power supply cord from
the AC outlet.
connectors. If the WS-SP2A is mounted in a rack, remove
the instrument and place it on a convenient work surface.
Be certain that the AC power cord is disconnected from
the AC power supply outlet.
Remove the top cover. The drawing below shows the loca-
tion of the three switches that select the internal signal
processing options. The switches affect only the VLF and
channel A and B outputs-the A + B output is not affected
by the signal processing.
Select the switch settings for the signal processing that
is appropriate for the installation from the table on next
page. When the WS-SP2A is used in a VLF (subwoofer)
only mode, switch position 1 for VLF I, output A and B
is recommended.
(Front)
1204
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