User Guide

Crestron CNAMPX-12/16X60 Professional Audio Amplifiers
WARNING: The CNAMPX-12/16X60 amplifiers are heavy units. The CNAMPX-
12X60 weighs approximately 81.40 lbs (37.00 kg) and the CNAMPX-16X60 weighs
approximately 90.20 lbs (41.00 kg). Use more than one person to remove unit from
or install unit into rack.
CAUTION: The CNAMPX-12/16X60 Cresnet system interface card contains ESD
sensitive devices. Perform the following procedures while wearing a grounding strap
that is properly grounded or on a grounded work station to avoid damaging the card
and/or unit.
CAUTION: To prevent stripping of screw heads, threads, or mounting holes, do
NOT overtighten screws. Tighten only to the specification listed in the individual
step(s).
NOTE: The CNAMPX-12/16X60 Cresnet system interface card provides Cresnet
system control and is used to activate AC power. DO NOT attempt to operate the
CNAMPX-12/16X60 with the card removed.
NOTE: The unit shown in this procedure is a CNAMPX-16X60. The procedure is
identical for all models and all versions except where noted.
1. Make sure that the “Disconnect Unit and Cover Removal” procedure
on page
5 has been performed.
CAUTION: The two connectors at the bottom-right of the Cresnet system interface
card are both 2-pin connectors that are electrically NOT interchangeable. Observe
the wire colors and/or label the connectors.
2. Refer to the diagram below. Facing the left-side (the side with the rear
panel Cresnet system connectors) of the CNAMPX-12/16X60, hold the
card by hand and disconnect all connectors (one for the CNAMPX-
12X60, six for the CNAMPX-16X60) from the card.
Cresnet System Interface Card Connectors
CAUTION: In the diagram above, the connector “A” has one black and one blue
wire; the connector “B” has two black wires. Make certain these connectors are not
reversed when reconnected.
Service Guide - DOC. 5885B Professional Audio Amplifiers: CNAMPX-12/16X60 • 13