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音楽ミキサー ATI Audio MX101のPDF 取扱説明書をオンラインで閲覧またはダウンロードできます。ATI Audio MX101 17 ページ。 Mono output mixers and input expander

strapping their chassis together. CAUTION! The outer shell of the DC intercon-

nect cables is positive relative to the chassis. Do not allow a DC cable plugged

into a powered unit to hang loose where it might short against the chassis or rack

frame.

MAINTENANCE

There is no routine maintenance required. If you have a problem, check the pan-

el LED indicators to assure that the units have DC power, eliminate by substitu-

tion microphones, input and output cables, connectors, downstream devices,

Mixer-to-Expander interconnect cables and power supplies. If all else fails, read

your warranty (even though it probably ran out yesterday) and call us for sympa-

thy and overpriced parts.

POWER SUPPLY LEVELS

The recommended loaded DC input voltage range is 22 to 30VDC over the full

range of AC line voltage tolerances. The audio circuits continue to work with re-

duced headroom below 22VDC but the LED VU meter will not indicate the top

segments. Momentary surges up to 36VDC will cause some increased internal

heating, but above 36VDC call our parts department for some of those expensive

ICs.

OPERATING POINTS

An internal reference voltage equal to 1/2 the supply voltage is generated by A9

in the MX100 and A5B in the XP100. All audio stage inputs and outputs should

show a DC level equal to this voltage when measured with a high impedance

meter. XLR audio inputs and outputs are capacitor coupled and ground refe-

renced. The expansion buss input is at this DC reference level and must not be

accidentally grounded by dangling audio interconnects cables.

To set, adjust the Master Gain Control for the desired 0VU output level in the

range of +8 to -10dBm (+4dBm nominal) with an independent audio voltmeter.

Adjust the internal meter calibration trimpot, R70, for 0VU indication on the bar-

graph meter.

ATI Audio Inc.

■ Tel: 856-626-3480

Fax: 856-504-0220

www.

audio.com

■