5
Important Information
1. The MX135 A/V Control Center has provisions for adding an
optional McIntosh TM1 AM/FM Tuner Module for Radio
Station Reception. The TM1 is available from your McIntosh
Dealer and can be installed at any time, usually while you
wait. Refer to page 52 for additional TM1 information.
2. Before making any connections to the MX135, 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.
3. All Zones in a McIntosh Multizone System (except for Zone A)
are unbalanced Analog Audio Signals only. The Digital Audio
Input Source Signals and Balanced Analog Audio Input
Signals will not appear at any of the Zones (including Zone B
of the MX135 and Zones of a CR12 or CR16 when connected
to the MX135). The Source Component Unbalanced Analog
Outputs must be connected to the MX135.
4. The connection of a turntable to the PH/AUX Input jacks
requires changes to be made in the SETUP Mode, refer to
page 32. If a recording is made from the turntable and/or
listening to a record in Zone B of the MX135 and Zones of a
CR16 when connected to the MX135 both the INPUT A and
INPUT B Controls need to be placed in the PHON position.
5. 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.
Control Center to CR16 Cable Part No. 170-430
Six foot, DB37, shielded, straight through, 37 conductor
male-to-male cable.
6. When the MX135 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.
7. When the MX135 is connected to a CR16 Controller Input B
jack with the 37 conductor cable, do not connect a 25
conductor cable to the CR16 Controller Input A jack from
another McIntosh Control Center.
8. When the MX135 is connected with a CR16, the MX135
provides fixed specific audio signals that match the CR16
Inputs. If the MX135 Inputs listed below are re-titled, the
Inputs Titles on the CR16 will no longer match. For example,
if the MX135 TV Input (7), is reassigned as DVD2, selecting
the TV Input on the CR16 will receive the audio signals from
DVD2.
MX135 Inputs CR16 Inputs MX135 Inputs CR16 Inputs
0. TUNER
TUNER 7. TV
TV
1. PH/AUX
AUX 8. LV
LV
3. CD2
CD2 9. VCR1
VCR1
Important Information
MX135 Inputs CR16 Inputs MX135 Inputs CR16 Inputs
4. TAPE 1
TAPE 1 11. DVD
DVD
9. The MX135 Input Source Name “DVD” is equivalent to “V-
Aux” on some McIntosh Keypads, Remote Controls and
Audio/Video Control Centers.
10. Up to four McIntosh Sensors or Keypads can be wired in
parallel for both Zones A and B.
11. When a McIntosh WK-2 Keypad or a R649 Sensor is to be
connected to the McIntosh MX135 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.
12. 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 291-10. To avoid possible interaction,
disable the MX135 Front Panel Sensor with the switch
recessed in the bottom panel behind and to the left of the
Sensor.
13. System Setup operations must be performed in the order
they appear in the Main System Setup Menu as they are
interactive.
14. In order to hear bass frequencies below 80Hz, your system
must include either a Subwoofer or Large Front
Loudspeakers.
15. When an assigned Digital Input and a matching Analog
Input are in use, the MX135 automatically searches first for
a Digital Signal. If no Digital Signal is sensed, it switches to
the Analog Input.
16. Certain DVD or Laser Video Disc Players that are
reproducing Digital DTS Signals into a MX135 Digital
Input, may only produce noise from their Analog Outputs. If
Zone B is turned on and that same input is selected, that
noise will be heard.
17. There are three types of Video Signals that can be connected
to and selected by the MX135; Composite, S-Video and
Component. Zone A and B, VCR 1 and 2 have both
Composite and S-Video Outputs; the Component Video
Output is for Zone A only. The MX135 has Digital Video
Processing Circuitry that will Up-Convert the desired
Composite Input to S-Video; it will also Up-Convert the
desired Composite and/or S-Video Inputs to Component
Video.
18. For additional connection information, refer to the owner’s
manual(s) for any component(s) connected to the MX135
A/V Control Center.
RJ-45
Plug
Data Ground
(to Pin 2)
Shielded Cable Data Signal
(to Pin 1)
“F” Connector
Pin 1 Pin 8
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