User manual SOUNDCRAFT GB2

[. . . ] GB2 User Guide GB2 User Guide 1 IMPORTANT Please read this manual carefully before using your mixer for the first time. © Harman International Industries Ltd. 2006 All rights reserved Parts of the design of this product may be protected by worldwide patents. ZM0344-01 Soundcraft is a trading division of Harman International Industries Ltd. Information in this manual is subject to change without notice and does not represent a commitment on the part of the vendor. [. . . ] Set Master faders at 0, input faders at 0, route the channels to MIX and set power amplifier level to suit the application. Provide a typical performance level signal and press the PFL button on the first channel, monitoring the level on the bargraph meters. Adjust the input gain until the meter display is in the amber section, with occasional peaks to the first red LED at a typical maximum source level. This allows sufficient headroom to accommodate peaks and establishes the maximum level for normal operation (but see note below). Repeat this procedure on other channels as required. Listen carefully for the characteristic sound of `feedback'. If you cannot achieve satisfactory input level setting without feedback, check microphone and speaker placement and repeat the exercise. If feedback persists, it may be necessary to use a Graphic Equaliser to reduce the system response at particular resonant frequencies. Note: The initial settings should only be regarded as a starting point for your mix. It is important to remember that many factors affect the sound during a live performance, for instance the channel EQ settings or even the size of the audience!You are now ready to start building the mix and this should be done progressively, listening carefully for each component in the mix and watching the meters for any hint of overload. If this occurs, back off the appropriate Channel Fader slightly until the level is out of the red segments, or adjust the Mix Master Faders. This procedure will ensure that the mixer is set up correctly, with adequate headroom. If more amplification is needed, adjust the power amplifier level controls. Troubleshooting No Power Is the mains supply present?Check the mains fusing If only one of the power indicators is illuminated, consult your Soundcraft dealer Condenser Mic Not Working Is the 48V turned on?Is the mic cable a balanced 3-wire type? GB2 User Guide 15 Meters not showing any signal Has the input gain been set correctly?(see above. ) Is the source connected to the appropriate input socket for the level of signal?Do you have something connecetd on the Inserts, and is that external device switched on?Are the Master faders set at max. , are input faders set high enough and is the channel routed to the output being monitored?Is the MUTE switch released on the relevant channels?Is the appropriate monitor select switch pressed?Is there a PFL/AFL pressed on another channel? No Mix output Check that the Mix Master Fader is up? No Monitor output Are the Monitor + Phones controls set high enough?Is the appropriate monitor select switch pressed? Headphones Distorting Are the headphones less than 50 impedance? [. . . ] Each group's post-fader signal may be routed to one or both of the 2 matrix busses via the matrix input pots (5). AUX MASTERS Each AUX master level pot (6) controls the level fed from its own aux bus to its aux output. Aux outputs 1-4 are balanced via XLR connectors, aux 5 and 6 outputs are balanced via 3-pole 1/4" jack sockets on the rear connector panel. Each AFL button (7) feeds its aux post-fader signal to the monitor output and phones output. MATRIX MASTERS Each MTX MASTER level pot (8) controls the level fed from its own matrix bus to its matrix output on the rear connector panel. Each AFL button (9) feeds its matrix master post-fader signal to the monitor output and phones output. [. . . ]