Calrec M3 Operator's Manual page 12

M3
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INSTALLATION
Some of the checks shown below may seem obvious or unnecessary, but they are essential and
do not take long to complete. If at any time during the proceedings there is anything that you
do not understand, please contact our Customer Support Team who will be happy to help
you with any queries or problems you may have.
• Unpack the mixer (& external power supply, if applicable), checking that all items are present
& undamaged
• Complete the user registration form
• The M3 has the internal switching options set as requested in the customer questionnaire.
If the questionnaire has not been submitted, then the console will be set to the standard
default DIL switch settings shown in section 5. If however this is not the preferred set-up,
then please refer to section 5, which explains the options available using the DIL switches.
• To change the settings, you will need to remove the module from the chassis. Lift off the
graffiti strip & remove the 2 module fixing screws which are located at the top and the bottom
of the module front panel, please do not remove the fader fixing screws. Use the extractor
tool supplied with the console to place into the extraction hole on the front panel & carefully
lift out the module. Please take care not to accidentally knock the module against any of the
adjacent ones as this could result in component and/or front panel damage.
• Using the information in section 5, reset the DIL switches located on the individual module
printed circuit boards (PCBs) to obtain the required set-up. Incorrect selection of DIL
switches can result in severe distortion of audio.
• Visually check the pins in the edge connector for damage, prior to carefully replacing the
module, pushing it firmly & squarely into the mating connectors in the chassis.
• If the mixer has an upstand, use the power & audio leads to connect the upstand inputs to
the appropriate connectors on the rear of the main chassis
• Check that the AC voltage marked on the back of the power supply matches the local
mains supply. If an internal power supply (PSU) is fitted, check the voltage detail on the
console itself. The information can be found adjacent to the Mains IEC input connector,
underneath the console.
• If the console has an external PSU, connect the DC cable from the power supply to the
console and an earthed mains lead to the PSU. Switch on the mains supply & power up
the console, checking that all the LED's illuminate on the PSU.
• If an internal supply is being used then simply connect an earthed mains cable into the
IEC socket on the console.
• Finally check through the audio paths & connect the console into the rest of the audio
system.
NB It is important to remember that if a module is to be refitted into a powered-up
chassis, all the connector pins should connect into the chassis socket concurrently to
avoid component damage.
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