Usb Input Operation With A Computer - McIntosh C48 Owner's Manual

PCM". Refer to figure 70. During the time there is no
SOURCE: CD
15%
Figure 70
Digital Signal present the display will indicate "SI-
LENT". Refer to figure 71.
SOURCE: CD
15%
Figure 71

USB Input Operation with a Computer

The C48 USB-D/A Input provides the capability to
playback music from a computer, when the computer
is connected to the rear panel USB D/A connector. The
C48 USB Input is compatible with both PC Computers
using Microsoft Windows (XP with Service Pack
® ®
3, Vista with Service Pack 1 and Windows 7) and the
Apple Macintosh Computers using OS-X with the
® ®
latest update. McIntosh has verified proper playback
operation using Windows Media Player version 11 and
iTunes version 10.
When a disc in the computer is playing back,
the PLAY„, PAUSE , NEXT TRACK: , BACK
TRACK 9 and Stop < Push-buttons on the McIntosh
HR072 will control playback of the disc.
Note: When computer application programs and vari-
ous computer hardware components conform to
the Microsoft ® Windows ®
standards they should also work well when used
in conjunction with the C48 USB Input. If you are
experiencing difficulty with a specific computer
hardware component or computer application
program, contact the manufacturer of the prod-
uct.
The C48 Preamplifier Front Panel Information
Display will indicate the Bit and Sampling Rate of the
incoming digital signal. Refer to figure 72.
2CH PCM
Reset of Microprocessors
SILENT
In the unlikely event the controls of the C48 stop func-
tioning, the microprocessors can be reset by perform-
ing the following:
1. Press and hold the STANDBY/ON Push-button for
approximately ten seconds and then release.
2. To switch the C48 back on press the cycles On
STANDBY/ON Push-button
Note: This can be performed with the C48 On or in the
Resetting the C48 to default settings
If it becomes desirable to reset all the adjustable set-
tings (Setup and Trim Settings) to the factory default
values, perform the following:
1. Press both the PROCESSOR and OUTPUT 2
Push-buttons until the Front Panel Display indi-
cates "FACTORY RESET" (refer to figure 73),
and Apple ® Macintosh ®
then release the two push-buttons. Several seconds
later the Front Panel Display will indicate "FAC-
TORY RESET, -COMPLETE-" and the C48 will
switch Off. Refer to figure 74.
SOURCE: USB-D/A
15% 16/44.1k
Figure 72
Standby Mode.
FACTORY RESET
Figure 73
How to Operate the C48, con't
FACTORY RESET
-COMPLETE-
Figure 74
2. Press the STANDBY/ON Push-button and the C48
will resume operation.
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