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3.0 INSTALLATION
To install the Aphex COMPELLOR for use with your system, follow the
procedures described in the following sections.
e
CAUTION...
Thoroughly read Section 3.6 before you apply power to the unit.
An
incorrect line voltage setting can damage the unit.
3.1 Unpacking
Your COMPELLOR was carefully packed at the factory, and the container
was designed to protect the unit from rough handling. Nevertheless, we
recommend careful examination of the shipping carton and its contents for
any sign of physical damage which could have occurred in transit. If damage
is evident, do not destroy the container or packing material. Immediately
notify the carrier of a possible claim for damage. Shipping claims must be
made by the consignee.
3.2 Audio I/O (Input/Output) Level Set
The COMPELLOR's nominal operating levels can be set for other levels
between - 10 to +8 dBm. Through an internal adjustment, you can optimize
the COMPELLOR's signal-to-noise performance and headroom. This
adjustment will also enable the COMPELLOR's meters to match the system
in which it is being used.
NOTE...
d
All COMPELLOR models are normally shipped from the factory with each
input and output level set at +4 dB. Do not set the COMPELLOR's nominal
operating level too high, or there will not be enough input level to generate
Gain Reduction. To determine if the unit is properly set, send a 0 VU tone to
the COMPELLOR and verify that the Program Input Meter indicates 0 VU.
You can set the Model 300's input/output levels for other operating levels by
moving jumpers located on each Audio Processing Board. Refer to the
CIRCUIT MODIFICATIONS section for a detailed procedure.
If you have a Model 301 or 303, you can set the input/output levels for other
operating levels by adjusting rotary switches, designated as Input Level Set
and Output Level Set. To access these switches by removing the top cover of
the COMPELLOR, as shown in Fig. 3-1 on the next page.
If necessary, you can set the input and output levels separately to use the
COMPELLOR for level interface. For example, you can set the Input Level
Set to - 10 and the Output Level Set to +4 to interface a CD or tape player to a
+4 dBm system.
It
CAUTION...
Do not switch the IN/OUT switch to OUT when using the COMPELLOR in
a level match application. In the OUT position, a hardwire bypass will
connect the interfacing sources together with predictable damaging results.
Installation 3-1
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