Optical And Digital Inputs; Usb Input Operation With A Computer - McIntosh C50 Owner's Manual

PASSTHRU
Figure 74
The C50 OUTPUT 1 / OUTPUT 2 Front Panel Push-
buttons are active when in the Passthru Mode. The
other of the Front Panel Controls and Push-buttons are
deactivated as long as the Passthru Mode is active

Optical and Digital Inputs

When a Digital Input (Optical or Coxial Connection)
on the C50 is selected the Front Panel Information
Display will indicate when a signal is present "2CH
PCM". Refer to figure 72. During the time there is no
SOURCE: CD
15%
Figure 72
Digital Signal present the display will indicate "SI-
LENT". Refer to figure 73.
SOURCE: CD
15%
Figure 73

USB Input Operation with a Computer

The C50 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
C50 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
standards they should also work well when used
in conjunction with the C50 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 C50 Preamplifier Front Panel Information
Display will indicate the Bit and Sampling Rate of the
incoming digital signal. Refer to figure 75.
2CH PCM
Reset of Microprocessors
In the unlikely event the controls of the C50 stop func-
SILENT
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 C50 back on press the cycles On
STANDBY/ON Push-button
Note: This can be performed with the C50 On or in the
Standby Mode.
Resetting the C50 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:
® Windows ® and Apple ® Macintosh ®
SOURCE: USB-D/A
15% 16/44.1k
Figure 75
How to Operate the C50, con't
1. Press both the PROCESSOR and OUTPUT 2
Push-buttons until the Front Panel Display indi-
cates "FACTORY RESET" (refer to figure 76),
FACTORY RESET
Figure 76
then release the two push-buttons. Several seconds
later the Front Panel Display will indicate "FAC-
TORY RESET, -COMPLETE-" and the C50 will
switch Off. Refer to figure 77.
FACTORY RESET
-COMPLETE-
Figure 77
2. Press the STANDBY/ON Push-button and the C50
will resume operation.
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