Ecler eGPA2-150, Руководство пользователя

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9
7.3. Indicators
eGPA amplifiers include a simple yet effective indication system.
PROT/STBY indicators (7) show the absence of loudspeaker output signal. These
indicators may light up for following reasons:
• During start-up, until the STANDBY time has passed. This time period is needed
for the internal operating voltages to settle.
• A short circuit is detected at the loudspeaker terminals (PROTECT function).
•
When the module enters AUTO-STANDBY mode. In this case, the indicator will
illuminate in orange instead of red.
If these indicators remain lit in red, there's a malfunction that should be investigated to
find the cause of this lighting.
CLIP (2, 4) indicators light up when the signal level feeding the loudspeakers is just
below the actual clipping. This CLIP system takes into account possible variations in the
supply voltage, always giving a real indication. CLIP indicators light up to the beat of low
frequencies when working at high power levels; it's normal as low frequencies are those
with higher energy content. You must take care that these indicators do not remain
continuously lit.
SP Signal Presence indicators (1, 3) indicate the presence of a valid signal at the amplifier
inputs.
The TH (THERMAL) (8) indicator lights when the unit has entered the protection mode due
to excessive temperature; normal operation is recovered when the amplifier internal
temperature comes back down to regular operating levels.
8. CLEANING
The front panel should not be cleaned with dissolvent or abrasive substances because
silk-printing could be damaged. To clean it, use a soft cloth slightly wet with water and
neutral liquid soap; dry it with a clean cloth. Be careful that water never gets into the
amplifier through the holes of the front panel.