1. Check the Neumann Logo Indicator:
The Neumann logo on the front panel serves as a status indicator. Observe its behavior:
* Off: The monitor is not receiving power.
* Solid White: The monitor is powered on and operating normally.
* Flashing Red: Indicates a fault condition.
* Solid Red: The monitor has entered protection mode due to incoming level, air circulation, or another issue.
If the logo is off or displaying red, it suggests a power or internal fault and contacting support is advised.
2. Update the firmware using MA 1.
If you have a KH 80, KH 120 II, KH 150, or KH 750 subwoofer, it is advised to download the latest version of MA 1 software from your Neumann account under Software Download in order to perform a firmware check.
All DSP monitors must be connected through a router or a network switch via ethernet, along with the computer running MA 1.
This software can also be used with the MA 1 microphone to calibrate the monitoring setup.
3. Reset the Monitor:
* Some issues can be resolved by resetting the monitor to its factory settings.
To factory reset the KH 80:
Switch on the KH 80 DSP. While the logo is still red indicating boot up move the SETTINGS switch up and down repeatedly until a few seconds after it turns white.
To factory reset the KH 750 subwoofer:
Switch on the KH 750 DSP. While the power light is solid red during the boot up phase, move the AUTO STANDBY switch up and down repeatedly. The power light will then flash red while the default settings are being applied before reverting to green.
To factory reset the KH 120 II or KH 150:
Switch on the loudspeaker. While the logo is flashing during the boot up phase, move the CONTROL switch up and down repeatedly. Continue until the logo turns solid white for a few seconds. The logo begins quickly flashing red for a few seconds before turning white again.
4. Examine Input Settings:
* Ensure the input selector switch on the back of the monitor is set correctly (e.g., to 'Analog' if you're using an analog connection).
* Verify that the input gain and output level settings are appropriately configured.
5. Test with a Different Audio Source:
* Connect a different audio source directly to the monitor to rule out issues with your primary audio interface or source.
* If no output: certain audio interfaces utilize a software router or mixer. Examples include RME Totalmix, Focusrite Control, MOTU's Cuemix, and Universal Audio's Console 2.0.
With such software, verify the internal routing is configured properly (eg Audio sources routed to the appropriate output pairs) and that the outputs are metering sufficiently.