User`s manual

2-10
Your projector may be equipped with a Cat. No. 655 LED
soundhead. This product has two varieties. One type
has a single 8 pin IC on it, the other has two IC’s.
Set J1 (projector 1) and/or J2(projector 2) to
UNBALANCED if the Cat. No. 655 LED soundhead has
ONE IC. This will raise the gain of the optical
preamplifier circuit and ensure correct surround
decoding.
Set J1 (projector 1) and/or J2(projector 2) to
BALANCED if the Cat. No. 655 LED soundhead has
TWO ICs, or for use with all other types of non-
amplified cells.
2.5 Mains Power Wiring
The CP45 is supplied with two mains powered transformers.
One is used to power the unit during normal operation and the
other is used when the CP45 is switched to BYPASS operation.
If there is any chance that the source of power to the
normal transformer might be interrupted, it is very
important to feed the bypass transformer from a separate
source, preferably through a separate circuit breaker.
This way the automatic bypass switchover can take place
with the absolute minimum of interruption to the
audience.
In some countries the primary cable of each transformer may
not have a mains connector fitted. These unterminated leads
must be properly wired to a mains connector in accordance
with the following international code:
Brown wire Live or hot
Blue wire Neutral
NOTE: Neither wire is to be connected to the earth terminal of
a three-pin mains plug.
If you are uncertain about the wiring of your mains outlet do
not use it. Consult a qualified electrician.