DJ200 PROFESSIONAL POWER AMPLIFIER USER MANUAL PAGE
11/19 V-
2) Short circuit protection: Short circuits arising as a result of operating malfunctions or connection to
loudspeakers with incorrect impedance are detected quickly and accurately. The output signal is
immediately shut off, and the LED indicator lights up to draw attention to the problem. As soon as the
problem has been eliminated, normal operation is resumed automatically.
3) DC fault protection: A DC output of more than 1 V is detected automatically and the output is
simultaneously shut off, in order to prevent the speakers from being damaged.
4. Low-noise intelligent cooling system: Low-noise fans with a long service life make the amplifier suitable for
use in noise-critical environments such as audio studios. A precise temperature sensor measures the
exterior temperature of the heat sink. If the temperature is below 70
°
C the fans do not operate, thus
ensuring quiet working conditions. If the temperature reaches 70
°
C the fans are automatically switched
on, so that the temperature of the heat sink falls rapidly.
3. Precautionary measures
7) Ensure that the power switch is switched off before connecting the cables to install the unit.
8) Ensure that the mains power supply corresponds to the rated voltage of the unit.
9) Ensure that there is an adequate source of power; do not switch on several amplifiers at the same time.
10) Ensure that all connectors are correctly and securely connected.
11) Ensure that the input level (volume) controls are set to the lowest level (to the left) before the power is
switched on.
12) If the amplifier malfunctions, switch it off immediately. Do not attempt to repair it yourself; contact your
dealer for service.
4. Front panel
1) Power LED (green):
This indicator lights up when the power is on.
2/3) Channel A and B signal indicators (green LEDs):
These indicate that the amplifier is operating.
4/5) Channel A and B output signal CLIP indicators (red LEDs):
When the input signal voltage is too high, these LEDs light up.
6/7) Channel A and B PROTect indicators (yellow LEDs):
These LEDs light up under the following 3 conditions.
1. during the first few seconds after switching the amplifier on or off,
2. in the case of overheating of the power amplifier, and
3. in the case of a technical malfunction, for DC fault protection.
8/9) Channel A and B input level controls (volume)
