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20
The MA5300 may be remotely controlled from other
equipment connected to the Rear Panel RS232 Jack.
The speed at which the MA5300 communicates (8 bit,
no parity and 1 stop bit) with other equipment is ad-
justable from 9,600 bits per second to 115,200 bits per
second. To change from the default speed of 115,200
bits per second, perform the following steps:
1. Press and hold in the INPUT Control to enter the
SETUP MODE. Refer to figure 2 on page 17.
2. Rotate the INPUT Control until “SETUP: RS232,
115200 Baud” appears on the Information Dis-
play. Refer to figure 26.
3. Rotate the VOLUME (ADJUST) Control to select
the desired Baud Rate Speed.
4. Exit the SETUP Mode by several presses of the
INPUT Control.
Comm Port Baud Rate
Figure 26
SETUP: RS232
115200 Baud
The USB Automute Feature helps to ensure noise free
playback of streaming music via the MA5300 USB In-
put, as the Digital Audio Signal format changes (PCM,
DSD, etc.). On occasion due to the way a Digtal Audio
Music Recording was made, it may become desirable
to switch Off the USB Automute Feature. To switch
Off Automute, perform the following steps:
1. Press and hold in the INPUT Control to enter the
SETUP MODE. Refer to figure 2 on page 17.
2. Rotate the INPUT Control until “SETUP: USB
Automute, ON” appears on the Information Dis-
play. Refer to figure 24.
3. Rotate the VOLUME (ADJUST) Control to select
“SETUP: USB Automute, OFF” Input. Refer to
figure 25.
4. Exit the SETUP Mode by several presses of the
INPUT Control.
USB Automute
Figure 25
SETUP: USB Automute
OFF
SETUP: USB Automute
ON
Figure 24
Remote Control Codes
The HR085 Remote Control included with the
MA5300 utilizes the NORMAL McIntosh Control
Codes. The Second Set of Control Codes the MA5300
will respond to is referred to as the ALTERNATE
Codes. The Alternate Codes are used when the
MA5300 is used in the same location as another
McIntosh Preamplifier and/or A/V Processor. This
will prevent the Remote Control from affecting the
operation of both units at the same time. To activate
the Remote Control ALTERNATE Codes perform the
following steps:
1. Press and hold in the INPUT Control to enter the
SETUP MODE. Refer to figure 2 on page 17.
2. Rotate the INPUT Control until “SETUP: IR
Codes, Normal” appears on the Information
Display. Refer to figure 27.
3. Rotate the VOLUME (ADJUST) Control to the
Alternate Codes. Refer to figure 28.
4. It is now necessary to change the HR085 Remote
Control over to the Alternate Codes. Information
on the HR085 Remote Control is available for
download from the McIntosh Web Site:
http://www.mcintoshlabs.com/us/Products/pages/
ProductDetails.aspx?CatId=preamplifiers&Produ
ctId=MA5300
5. Exit the SETUP Mode by several presses of the
INPUT Control.
Figure 27
SETUP: IR Codes
Normal
Figure 28
SETUP: IR Codes
Alternate
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