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Setting Up: Chapter 1
ADAT XT Reference Manual 7
CHAPTER 1
SETTING UP
UNPACKING AND INSPECTION
Your XT was packed carefully at the factory. The shipping carton was designed to
protect the unit during shipping. Please retain this container in the highly unlikely
event that you need to return the XT for servicing.
The shipping carton should contain the following items:
• ADAT-XT with the same serial number as shown on shipping carton
• Power Cable
• Optical Cable
• XT remote control unit
• This instruction manual
• Blank S-VHS ST-120 cassette
• Alesis warranty card
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It is important to register your purchase; if you have not already filled out your
warranty card and mailed it back to Alesis, please take the time to do so now.
AC POWER H OOKUP
With the XT off, plug the female end of the power cord into the XT’s [POWER INPUT]
socket and the male (plug) end into a source of AC power. It’s good practice to not
turn on the XT until all other cables are hooked up.
The XT works with
any
AC voltage from 90 to 250 volts, 50 to 60 Hz. This eliminates
the need for transformers or voltage switches. Your XT was supplied with the correct
power cord for your country or local area, however only the following alternative
power cords are approved for use with ADAT:
• For 90-120 VAC 50/60 Hz operation in the US, Canada and/or Japan, use Alesis
UL/CSA power cord #7-41-0001.
• For 240 VAC 50 Hz operation in England, use Alesis Power cord #7-41-0004.
• For 220 VAC 50 Hz operation in Europe and Scandinavia, use Alesis EU power
cord #7-41-0002.
• For 240 VAC 50 Hz operation in Australia, use Alesis AS power cord #7-41-0003.
The XT’s IEC-spec AC cord (do not substitute any other AC cord) is designed to feed
an outlet that includes three pins, with the third, round pin connected to ground. The
ground connection is an important safety feature designed to keep the chassis of
electronic devices such as the Alesis ADAT - XT, BRC and AI-1 at ground potential.
Unfortunately, the presence of a third ground pin does not always indicate that an
outlet is properly grounded. Use an AC line tester to determine this. If the outlet is not
grounded, consult with a licensed electrician. When AC currents are suspect of being
highly unstable in VAC and Hz, a professional power conditioner should be used.
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Alesis cannot be responsible for problems caused by using the XT or any associated
equipment with improper AC wiring.
AVOIDING GROUND LOOPS
In today’s studio, where it seems every piece of gear has a computer in it, there are
many opportunities for ground loop problems to occur. These show up as hums,