General Information; Connector And Cable Information - McIntosh MA7200 Owner's Manual

General Information

1. For additional connection information, refer to the
owner's manual(s) for any component(s) connected
to the MA7200.
2. Apply AC Power to the MA7200 and other McIn-
tosh Component(s) only after all the system compo-
nents are connected together. Failure to do so may
cause a malfunction of system operations as the
Microprocessor's Circuitry inside the components
is active when AC Power is applied.
3. The MA7200 includes an Auto Off Power Save
Feature and the default setting is enabled. For
additional information including how to disable it,
refer to page 22.
4. When Power Amplifier Protection Circuitry of
the MA7200 has activated, the Front Panel Power
Guard LEDs are illuminated continuously and the
sound will be muted.
5. When the Power Transformer has overheated due
to improper ventilation and/or high ambient operat-
ing temperature, AC Power is removed from the
MA7200. Normal operation will resume when the
operating temperature is in a safe range again.
6. For the best performance and safety, it is important
to always match the impedance of the Loudspeaker
to the Power Amplifier connections. Refer to pages
10 thru 12.
Note: The impedance of a Loudspeaker actually var-
ies as the Loudspeaker reproduces different
frequencies. As a result, the nominal impedance
rating of the Loudspeaker (usually measured at
a midrange frequency) might not always agree
with the impedance of the Loudspeaker at low
frequencies where the greatest amount of power
is required. Contact the Loudspeaker Manufac-
turer for additional information about the actual
impedance of the Loudspeaker before connecting
it to the McIntosh MA7200.
7. The MA7200 Remote Control is capable of operat-
ing other components. For additional information
go to www.mcintoshlabs.com.
8. The IR Input, with a 1/8 inch mini phone jack, is
configured for non-McIntosh IR sensors 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
MA7200. The signal from a connected External
IR Sensor will have priority over the signal from
the Front Panel IR Sensor.
9. 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 regula-
tions concerning battery disposal.
10. For additional information on the
MA7200 and other McIntosh Products please visit
the McIntosh Web Site at www.mcintoshlabs.com.

Connector and Cable Information

XLR Connectors
Below is the Pin configuration for the XLR Balanced
Input Connectors on the MA7200. Refer to the dia-
gram for connection:
PIN 1: Shield/Ground
PIN 2: + Output
PIN 3: - Output
Power Control and Trigger Connectors
The Power Control Trigger Output Jacks send and
Passthru Input Jack receives Power
On/Off Signals (+12 volt/0 volt)
when connected to other McIntosh
Components. An additional connec-
tion is for controlling the illumina-
tion of the Power Output Meters
General Information, Connector and Cable Information
on McIntosh Power Amplifiers. A 3.5mm stereo mini
phone plug is used for connection to the Power Con-
trol, Trigger and Passthru Outputs.
Data Port Connectors
The Data Out Ports send Remote
Control Signals to Source Compo-
nents. 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 Receiv-
ers to the MA7200.
RS232-C Data Port Cable
The RS232 Data Cable is a 3.5mm stereo mini phone
plug to a sub miniature DB 9 connector:
Data In
(DB9-pin2)
Data Out
(DB9-pin3)
Output Terminal Connector
When cables with spade lugs are used
for Loudspeaker Connection, the spade
lugs need an opening of at least 3/10 inch
(7.6mm)
PIN 1
PIN 2
PIN 3
McIntosh Plug-In Jumper Connector
The MA7200 utilizes two phono style Plug-In Jumpers
to connect the Preamplifier Output to the
Main, Trig 1&2
and Pass-Thru Power Amplifier Input.
Note: The Jumper Connector is available
Power
from the McIntosh Parts Department:
Control
McIntosh Jumper Connector Part No. 117781
Meter
Illumination
Control
Ground
Data
Signal
N/C
Data
Ground
IR Data
Control
N/C
Ground
DB9
(male connector)
PIN 1 PIN 5
Ground
PIN 6 PIN 9
(DB9-pin5)
3/10 of an inch
(7.6millimeters)
3