ALIGNMENT OF N-1 (MixMinus)
NOTE: This alignment has already taken place at the factory, however if you later on extend the
AIRLAB with another TELCO module you need to follow the next steps for a correct alignment of
the N-1 signal for every new installed TELCO module.
1. Power down the AIRLAB.
2. Connect the TELCO module to its flatcable connectors and lay down the module horizontally
on
the surface of the other modules. Put an isolating material between the TELCO module and
the surface of the other modules to avoid damage and shorts.
Now locate trimmer VR2 (close to switch “LINE”)
3. Activate the 'LINE IN' switch on the TELCO module.
4. Connect an audio source to the LINE IN connector, this can be music or a signal generator.
5. Connect a headphone or power amp to the TELCO SEND CINCH + connector.
6. Check again if there's no short between PCB of the TELCO module and the surface it's put on.
7. Power up the AIRLAB.
8. Move the fader to the 0 dB position. Press the ON switch. Press the PROGRAM switch.
9. CHECK if the CRM outputs this LINE IN signal (No CRM select switches are active) to be
sure that you have correctly connected and routed your source.
10. Now adjust the trimmer VR2 to a position where a minimum of signal is heard out of the
TELCO OUT Cinch + connector.
