ATI Technologies DMA103 Operating And Maintenance Manual - Page 5

Browse online or download pdf Operating And Maintenance Manual for Amplifier ATI Technologies DMA103. ATI Technologies DMA103 7 pages.

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Single desk mounting kits consist of a pair of angled base plates that mount

under the lower front and rear cover screws of a single unit to raise and to tilt it

for easy use. In addition, one or more sets of vertical stacking plates, mounting to

the upper front and rear cover screws of the bottom unit, allow multiple units to

be stacked. Several units can be desk mounted side-by-side and even stacked

side-by-side using horizontal joiner kits together with mounting base and stacker

kits. P/N20617-501 is the angled base kit. P/N20617-502 is the base plus one

stacker kit (two high). P/N20617-503 is the base plus two stackers (three high).

P/N20617-504 is the stacker kit by itself and P/N20604-504 is a horizontal joiner

kit.

OPTIONS

230VAC OPERATION

The WA100-2 tabletop power supply accepts 230VAC/50-60Hz via an IEC320

male 3 pin AC input connector. User supplies a matching line cord for the local

power system.

BATTERY OPERATION

Alkaline battery packs (BBU100-1), 24VDC gel cell rechargeable battery packs

(PPA-1) and a DC converter (DCA100-1) to operate from 12V belt pack, NP-1 or

auto batteries.

48VDC PHANTOM POWER (DMA103 only)

A DC converter (PH48-1) can boost the phantom power up to 48VDC.

There is no routine maintenance required by your NANOAMP. If you have a

problem, check panel LED indicators to assure that the units have DC power,

eliminate by substitution input and output cables, connectors, downstream

devices, DC interconnect cables and Wall Wart power supplies. If you are still

experiencing a problem, call us and ask for technical support.

POWER SUPPLY LEVELS

The recommended loaded DC input voltage range is 22VDC minimum to 32VDC

maximum over the full range of AC line voltage tolerances. The audio circuits will

continue to work with reduced headroom below 22VDC but the phantom

microphone power will drop out of regulation.

OPERATING POINTS

An internal reference voltage equal to 1/2 the supply voltage is generated. All

audio stage IC inputs and outputs should show a DC level equal to this voltage

when measured with a high impedance meter. Audio inputs and outputs are

capacitor coupled and ground referenced.

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