Important Information - McIntosh MX120 Owner's Manual

Important Information

1. Before making any connections to the MX120, make sure
the Main POWER Switch is in the Off position. Failure to
do so could result in malfunctioning of some or all of the
system's normal operations.
2. Zone A accepts, unbalanced Analog Signals, Balanced
Analog Audio Signals and Digital Audio Signals. Zone B
and the Record Output Signal only accept unbalanced
Analog Signals. When connecting source devices with audio
ouputs to the MX120, make sure to also connect the
unbalanced outputs.
3. The connection of a turntable to the PH/AUX Input jacks
requires changes to be made in the SETUP Mode, refer to
page 33. The MX120 INPUT Control for Zone A and B
needs to be placed in the PH/AUX position in order to
make a recording from the turntable and/or for listening to
a record in Zone B of the MX120.
4. Connecting Cables are available from the McIntosh Parts
Department:
Data and Power Control Cable Part No. 170-202
Six foot, shielded 2 conductor, with 1/8 inch stereo
mini phone plugs on each end.
Control Center to Multi-Channel Power Amplifier
Cable Part No. 170-631
Six foot, DB25, shielded, straight through, 25
conductor male-to-female cable.
5. When the MX120 is connected to some McIntosh
Multichannel Power Amplifiers with a 25 conductor cable,
the amplifier meters may automatically indicate the output
of individual channels during the Speaker Level Setup
Operation. Refer to the Power Amplifiers Owner's Manual
for additional information.
6. The MX120 Input Source Name "DVD" is equivalent to
"V-Aux" on some McIntosh Keypads, Remote Controls and
Audio/Video Control Centers.
7. Up to two McIntosh Sensors or Keypads can be wired in
parallel for both Zones A and B.
8. When a McIntosh WK-2 Keypad or a R649 Sensor is to be
connected to the McIntosh MX120 A/V Control Center that
uses a RJ-45 Connector Plug instead of the "F" Coaxial
Connector, connect the Center Conductor to Pin 1 and the
Shield Conductor to Pin 2. Refer to the figure below.
Shielded Cable Data Signal
Data Ground
"F" Connector
(to Pin 2)
4
Pin 1 Pin 8
(to Pin 1)
RJ-45
Plug
9. The Zone A and Zone B IR Inputs, with 1/8 inch mini phone
jacks, are configured for non-McIntosh IR sensors such as a
Xantech Model 291-80. To avoid possible interaction,
disable the MX120 Front Panel Sensor with the switch
recessed in the bottom panel behind and to the left of the
Sensor.
10. System Setup operations must be performed in the order
they appear in the Main System Setup Menu as they are
interactive.
11. In order to hear bass frequencies below 80Hz, your system
must include either a Subwoofer or Large Front
Loudspeakers.
12. When an assigned Digital Input and a matching Analog
Input are in use, the MX120 automatically searches first for
a Digital Signal. If no Digital Signal is sensed, it switches to
the Analog Input.
13. Some disk players have the ability to provide only a single
output (Digital or Analog) when a DTS Sound Track is
playing. If the Digital Output is selected in the player setup
mode, the players Analog Audio Output Signal will have the
undecoded DTS Sound Signal which will be heard as noise.
14. There are three types of Analog Video Signals that can be
connected to and selected by the MX120; Composite Video,
S-Video, and Component Video. Zone A, Zone B and
RECord Outputs have both Composite Video and S-Video
connections; the Component Video Output is for Zone A
only. The MX120 will Up-Convert the desired Composite
Video to S-Video; it will also Up-Convert the desired
Composite Video and/or S-Video Inputs to Component
Video.
15. The MX120 has built-in HDMI Digital Video Selection for
Zone A and has Digital Video Processing Circuitry to
convert and upscale any Composite Video, S-Video, and
Component Video Signals to Digital Video (480p, 720p or
1080i).
16. To view Component Video, S-Video and Composite Video
Input Sources through the HDMI Video Monitor A Output, it
is necessary to first go into the Setup Mode, select the Input
Setup Menu (HMDI Video/Component Video Menu items)
and make the appropriate changes from the default settings.
For additional information refer to pages 34 and 35.
17. For additional connection information, refer to the owner's
manual(s) for any component(s) connected to the MX120
A/V Control Center.
Important Information