Madrigal Audio Proceed Manual - page 15
15
8
ST DIGITAL INPUT
This input accepts digital audio conforming to the ST optical (sometimes
called “AT&T”—ST is a trademark of AT&T and the correct designation
for the interface) digital interface standard from the ST digital output of a
digital FM tuner, compact disc player, laserdisc player, or digital audio
recorder.
Connect the digital output of your digital source component to the ST
input of the DAP using a high quality optical cable.
9
REMOTE IR
A
1
⁄
8
" (3.5 mm) “mini” jack in the lower right corner of the rear panel
provides direct access to the infrared control circuitry of the DAP. This
remote IR
input facilitates a wide range of installation options. If desired,
the DAP may be placed inside a cabinet or outside the normal line-of-
sight in the listening area, with the controlling IR signal being relayed to
the DAP by any of a number of commercially-available IR repeaters.
The incoming signal for the remote IR input should conform to widely-
accepted IR repeater standards: that is, the signal present should be be-
tween 3-12 volts DC at less than 100 mA current, with a positive tip po-
larity, as shown below:
IR input tip polarity
+
–
3-12 volts @ less
than 100 mA
Your Proceed dealer can help you take advantage of these design fea-
tures to maximize your system’s versatility. (Note that the DAP is not sup-
plied with an infrared remote control. Instead, it can teach a learning
remote such as those provided with Proceed preamplifiers the needed
commands, reducing the overpopulation of remote controls on your coffee
table by one. See “Remote Control of the DAP” for more information.)
10
AC MAINS FUSE AND AC POWER RECEPTACLE
An
ac mains fuse
is provided which disconnects the DAP from the wall
outlet’s AC power under fault conditions. If this fuse should “blow” for
any reason, replace it only with the same value fuse (0.5A/250V slo-blo
5x20mm). If it blows a second time, please contact your Proceed dealer
for service.
Caution!
Replacing the ac mains fuse with a anything other than the
recommended value fuse will places the DAP at substantial
risk of damage!