Indicators; Lc Display; Isp Led (A/B) - Input Signal Present (Green); Gr Led (A/B) - Gain Reduction (Yellow) - D&B D6 Hardware Manual

D6 Amplifier, Hardware manual
3.2.

Indicators

3.2.1. LC Display

The LC-Display [4] serves as a user interface and display for all
configuration settings and status information.
The display is illuminated and can be set to "on/off/timeout 10 s."
A detailed description of the menu structure and access is given in the
D6 Software manual, which is also provided with the D6.

3.2.2. ISP LED (A/B) - Input Signal Present (green)

Input - analog
The ISP LED [5] Illuminates when the D6 input signal exceeds –30 dBu.
The ISP indication is unaffected by the setting of the level control and
the MUTE function but will not operate in STANDBY mode.
Input - digital
Illuminates when the D6 digital input is locked to 48 or 96 kHz and the
signal exceeds –57 dBFS (FS = Full Scale). The ISP indication is
unaffected by the setting of the level control and the MUTE function but
will not operate in STANDBY mode.

3.2.3. GR LED (A/B) - Gain Reduction (yellow)

The GR LED [6] illuminates depending on the input signal. The D6 limiter
circuit reduces gain by more than 3 dB. This state is not critical but
shows that the system has reached its limits.

3.2.4. OVL LED (A/B) - Overload (red)

The OVL LED [7] illuminates depending on the input signal ⇒ Overload.
Either the input signal level is too high or gain reduction exceeds
>12 dB.
- If in doubt reduce the input gain at the D6 level control. If caused by
the gain reduction, the OVL LED stops illuminating. If the condition
does not change, the input signal to the D6 is too high (greater than
+25 dBu).
An overload could also be caused by accumulating the source input
A+B or by high gain settings (boosts) in the single EQ bands, while the
input signal is lower than +25 dBu.
Flashes (1:1 mark space) ⇒ Error
An error message will be displayed altering with the device name.
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