Hard Drives are only covered for the first 10,000 hours, or 1 year (whichever comes first). Any second year warranty claims must be made to your local Datavideo office or one of its authorized Distributors before the extended warranty expires.
Overview DAC-80 is designed to remove hum and buzz created by ground loops. Normal voltage differences in the system grounding points between different pieces of equipment cause small AC power currents to flow in the shield of audio cables. Capacitance between a power transformer’s primary and secondary windings introduce signals to the circuit ground which will also create small current flows in the cable shield.
Front Panel CH1 / CH2 Audio Input XLR Balanced Audio input (Channel 1 / 2) LIFT Toggle Switch These switches turn to UP position, audio ground not connected. Breaks ground loops, provides audio isolation. These switches turn to DOWN position, for chassis shield and audio ground connected.
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