User Manual

RCF spa
M 18 Digital Mixer User’s Manual
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13. Headphones stereo output
Connect your headphones here either for PFL, Personal Monitoring or the Main Mix listening.
14. LINE Input 11-18
Connect here your line level sources like keyboard, external audio device or other small analog
consoles used for submix. These input are unbalanced, and their operating levels can be set to
+4dBu or -10dBV.
15. LINE Input 9-10 with switchable HiZ input
Connect to these unbalanced inputs your line-level sources, at +4 dBu or -10 dBV, or high-
impedance passive instruments, like electric guitars, electric basses or piezo pickups. You can
individually enable the Hi-Z option, that offers a 1 Mohm input impedance when activated.
Startup sequence and recovery from an error condition
The M series Digital Mixer features an advanced booting system that ensures the unit correctly powers up
in any condition. The white front LED gives indications about the startup process, which is divided into
several stages.
STAGE
LED
1
startup
Single flash
2
(bootloader)
Fast blinking
3
OS starts
Steady ON
4
M18 executable starts
Slow blinking
5
Completed, ready for use
Steady ON
It can happen that the internal files of the mixer are corrupted, typically when a firmware update procedure
is halted by mistake, by powering down the unit during the process or immediately after.
If the bootloader detects a corrupted file within it internal memory, then it forces the M18 to start in
RECOVERY MODE. This is a special mode in which a clean image is loaded and allows for proper upgrading to
the latest firmware, if needed.
The RECOVERY MODE is indicated in the Firmware version field, in both MixRemote (SETTINGS > SYSTEM),
and in MixUpdate apps. After a mixer starts in RECOVERY MODE, please check if later firmware updates are
available on RCF web site to ensure that you can take advantage of all functionalities.