Work Pro WCR - 35, Руководство пользователя

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Page 3
Reference Manual
Contents
Safety Instructions
Installation
Specifications
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Introduction and Control
General Operating
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INSTALLATION
RACKMOUNTING
CONNECTORS
Your was carefully packed in the factory and the packaging was designed to protect
the unit from rough handling. Nevertheless, we recommend that you carefully examine the
packaging and its contents for any signs of physical damage, which may have occurred in
transit .
lf the unit is damaged, please do not return it to us, but notify your dealer and the shipping
company immediately, otherwise claims for damage or replacement may not be granted.
Shipping claimsmust be made by the consignee.
The fits into one standardrackunit of space(13/4"). Please allow at least an additional
4" depth for the connectors on the back panel. Be sure that there is enough air space around
the unit for cooling and please do not place the
on high temperature devices such as
power amplifiers etc. to avoid overheating.
The has to be installed using XLR connectors. Although the inputs and outputs ARE
fully balanced, the automatic servo-function allows them to operate with unbalanced
sources/loads.
The inputs have an impedance of 60 kOhms and can be driven by most input sources. If a
device's output requires a load of 600 Ohms (provided with most output transformers), 600
Ohm resistors should be tied across pins 2 and 3 on theinput connectors.
As standard, the outputs of the are electronically balanced (transformer balancing
optional) and have an output impedance of 40 Ohms. When driving transformer coupled loads,
it may be necessary to create a 600 Ohm source impedance. For this purpose, install two 287
Ohm resistors (tolerance: 1%) in serieswith pins 2 and 3.
90% of all mistakes in audio installations can be attributed to incorrect and defective audio
connections! In order to utilize the
to its full potential, please pay special attention to
thefollowing section.
For better understanding, the technical difference between and systems
must be clarified:
Unbalanced operation is characterized by a single conductor cable with the center conductor
carryingand theshieldat ground.
WCR 35
WCR 35
WCR 35
WCR 35
Impedance
WCR 35
Unbalanced/Balanced Operation
WCR 35
The Unbalanced System
The Balanced System
unbalanced balanced