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15. Optional AD Converter Board
The Optional AD Converter card for the TDA 2200 has input connectors for both balanced
(XLR) and unbalanced (RCA) signals. The input impedance of the inputs are 10 kOhm.
a. Balanced inputs
The balanced XLR inputs are wired in accordance with IEC268:
Pin 1: Chassis and ground.
Pin 2: Hot (+).
Pin 3: Cold (-).
Shell: Chassis and ground.
b. Unbalanced inputs
The unbalanced RCA inputs are wired in accordance with normal practice:
Shell: Chassis and ground.
Pin: Hot (+).
c. Trigger connector
The TDA 2200 is equipped with a TRIGGER OUT 3.5mm mono jack connector. The
Trigger signal is a 12V short circuit-protected output signal for powering up external
equipment when the TDA 2200 is on, e.g. remotely connected SDA 2175 power amplifiers
or active subwoofers.
16. Cleaning and Maintenance
Always unplug the unit from the electrical outlet before cleaning.
This unit does not require any regular maintenance except to keep its exterior clean.
Simply wipe its exterior with a clean soft cloth. A small amount of non-abrasive cleaner
may be used on the cloth to remove any excessive dirt or fingerprints. Do not use abrasive
cleaners or cleaners containing liquid solvents.