soundcraft spirit live 4.pdf - Free Pro Audio Schematics

M A STER7. GROUP OUTPUTThe Group outputs are driven by ground compensatedamplifiers to a standard 1 ⁄4" 3 pole ‘A’ gauge jack socket.M ASTER SEC TIO N8. D.C. POWER SOCKET9. MONO OUTPUT10. MIX L & R OUTPUTS11. INSERTS12. BA RG RAPH M ETERSThe cable from the power supply connects to the console viathis 5-pin socket.Ensure that you always use the correct power supply for yourconsole. The 12, 16 and 24 channel frame sizes require theDCP100 power supply and the 32 channel frame uses theCPS150 power supply.The ground compensated MONO output is a sum of thepostfade Mix Left and Right outputs, providing a separatelycontrolled feed which may for instance be used to drive acentre loudspeaker cluster via a suitable power amplifier.The MIX L & R outputs are standard male XLR-3 connectors,driven by ground compensated amplifiers.These are similar to the Input Channel Inserts and allowexternal processing equipment to be ‘inserted’ into the outputsignal path. The 1 ⁄4" 3 pole ‘A’ gauge jack sockets areby-passed except when a plug is inserted.Six 12-segment, three colour bargraph meters provide visualmonitoring of the levels of the Mix Left and Right, and Groupoutputs. All the meters are peak reading.Normally the Left and Right meters show the level of the MixLeft and Right outputs. If any PFL or AFL switch is activatedthe left meter is turned off and the right meter displays thelevel of the selected PFL or AFL signal.The bargraphs may be calibrated by trimmers accessed viaholes in the panel below each meter. Adjustments may bemade using a small screwdriver, taking care not to damagethe trimmers.Pa g e 18