Audio Research DAC3 Bedienungsanleitung Seite 5

Model DAC3
Connections
OUPUT CONNECTORS:
—Plasticfiber output: for direct data stream connection to
digital recorders.
—RCA output connectors: for connection
(RCA)inputs of your preamplifier or line stage.
—XLR output connectors:
(XLR)inputs of your preamplifieror line stage.
INPUT CONNECTORS:
—Input I: Forglassfiber cable(AT&T,ST@ type).
-Input 2:For ETAJCP-340plastic fiber cable(TOSLINK).
—Input 3: For coax cable. Switchable between SPDIF stan-
dard BNC-coaxial and the AES/EBU XLR-based standard.
(An RCA-to-BNC adaptor is provided for use with RCA
type coax cables.)
Installation Instructions
While the DAC3doesnot dissipatean unusualamount of
heat,it is important that it beprovidedwith reasonable air-
flow to assurelong, trouble-freeoperation.In addition, the
following installationguidelineswill help insuremaximum
sonic performance aswell as reliable service.
I. Uprightand horizontalmounting is suggested i f extend-
edoperation(longerthan one hour) is contemplated.
2. Do not "stack" the DAC3 on top of a power
amplifier.
3. Do not placeor operateyour DAC3on a soft or irregular
surfacesuch as a rug. This will prevent proper ventila-
tion.
4. Never operate your DAC3 without the top and bottom
coversinstalled. These are required both for safety as
well as shielding from interference (except in service
operations.)
Operating/Start-Up
1. MakesurePowerswitch is setto "Off" position.
2. Secure all rear-panel c onnections betweenDAC3, pream-
plifier, and digital input sources(s).
3. Plug 3-prong power cord from the rear of DAC3 into a
groundedACwall receptacle.
2
to unbalanced
for connection to balanced
Procedure
4. Turn Power switch to "On." The green "Power" LED will
glow dimly for approximately 15 secondswhile the pow-
er supply stabilizes. indicating operation of the automatic
muting circuit. After this warm-up period, the LED
will brighten, indicating that your DAC3 is ready for
operation.
Servicing
Because of its careful design and exacting standards
of manufacture, your DAC3 should normally require
only minimal routine service to maintain its high level of
performance.
CAUTION: Your DAC3 contains sufficient levels of voltage
and current to be lethal. Do not tamper with a component
or part inside the unit. Refer any needed service to your
authorized Audio Research dealer or other qualified
technician.
The vacuum tubes inside your DAC3 are quality 6922 dual
triods, and with normal use should not need to be changed
for approximately 5,000 hours of use. Replacementtubes
should be of equivalent quality and are available from
Audio Research.
Should service be necessary, please contact your
Audio Research dealer, or Audio
Service at (612) 939-0600 (CST).
Cleaning
To maintain the new appearanceof this unit, occasionally
wipe the front panel and top cover with a soft. damp (not
wet) cloth to remove dust. A mild, non-alkaline soap solu-
tion or dilute isopropyl alcohol may be used to remove
fingerprints or similar smudges. Cleaners containing abra-
sives should not be used as they will damage the anodized
finish of the front panel. A small, soft paint brush is effec-
tive in removing dust from bevels, the recessednameplate
and other features of the front panel.
Research Customer