ATI Audio DMA103 - Manual (Page 5)

ATI Audio Inc. ■ Tel: 856- 719-9900 ■ Fax: 856-504-0220 ■ [email protected] ■ www. audio.com
OPTIONS
230VAC OPERATION
The WA100-2 power supply accepts 90-264VAC at 47-63Hz and is supplied with
interchangeable AC input connectors for worldwide use.
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 P/N PH48-1 can boost the phantom power up to +48VDC.
MAINTENANCE
There is no routine maintenance required for 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.