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3
XLR Connectors
Below is the Pin configuration for the XLR Balanced
Input and Output Connectors on the C22. Refer to the
diagrams for connections:
PIN 1: Shield/Ground
PIN 2: + Signal
PIN 3: - Signal
Power Control Connectors
The C22 Power Control Output Jacks send Power On/
Off Signals when connected to
McIntosh Components. An ad-
ditional connection is for con-
trolling the illumination of the
Power Output Meters on McIn-
tosh Power Amplifiers. Refer to
page 8 for additional information. A 3.5mm stereo
mini phone plug is used for connection to the Power
Control Outputs.
Data Port Connectors
The C22 Data Out Ports send Re-
mote Control Signals to McIntosh
Source Components. A 3.5mm
stereo mini phone plug is used for
connection.
IR IN Port Connectors
The IR IN Port also uses a
3.5mm stereo mini phone plug
and allows the connection of
other brand IR Receivers to the C22.
1. The C22 uses Vacuum Tubes for amplifying the
audio signal. The C22 is designed to have only
qualified Service Personnel perform any part(s)
replacement including all the vacuum tubes.
2. For additional connection information, refer to the
owner’s manual(s) for any component(s) connected
to the C22 Stereophonic Preamplifier.
3. The Main AC Power going to the C22 and any
other McIntosh Component(s) should not be applied
until all the system components are connected
together. Failure to do so could result in malfunc-
tioning of some or all of the system’s normal opera-
tions. When the C22 and other McIntosh Compo-
nents are in their Standby Power Off Mode, the
Microprocessor’s Circuitry inside each component
is active and communication is occurring between
them.
4. Balanced and Unbalanced Inputs and Outputs can
be mixed. For example, you may connect signal
sources to Unbalanced Inputs and send signals
from the Balanced Outputs. You can also use Bal-
anced and Unbalanced Outputs simultaneously,
connected to different Power Amplifiers.
5. The C22 Remote Control is capable of operating
other components. For additional information go
to www.mcintoshlabs.com.
6. The IR Input, with a 3.5mm stereo mini phone
jack, is configured for non-McIntosh IR sen-
sors such as a Xantech Model DL85K Kit. Use
a Connection Block such as a Xantech Model
ZC21 when two or more IR sensors need to be
connected to the C22. The signal from a connect-
ed External IR Sensor will have priority over the
signal from the Front Panel IR Sensor.
General Information Connector and Cable Information
PIN 1
PIN 2
PIN 3
Data
Signal
N/C
Data
Ground
IR Data
Control
Ground
N/C
7. When discarding the unit, comply with local rules
or regulations. Batteries should never
be thrown away or incinerated but
disposed of in accordance with the local
regulations concerning battery disposal.
8. For additional information on the C22
and other McIntosh Products please visit the McIn-
tosh Web Site at www.mcintoshlabs.com.
General Information and Cable Information
Power
Control
Meter
Illumination
Control
Ground
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