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©   Soundcraft Electronics Ltd.  1991 
All rights reserved

Issue 1 
Part No. ZZ2727

Information in this manual is subject to change without notice and does not represent a
commitment on the part of the vendor. Soundcraft Electronics Ltd. shall not be liable for
any loss or damage whatsoever arising from the use of information or any error contained
in this manual.

No part of this manual may be reproduced, stored in a retrieval system, or transmitted, in
any form or by any means, electronic, electrical, mechanical, optical, chemical, including
photocopying and recording, for any purpose without the express written permission of
Soundcraft Electronics Ltd.

It  is recommended that all maintenance and service on the product should be carried out
by Soundcraft Electronics Ltd. or its authorised agents. Soundcraft Electronics Ltd. cannot
accept any liability whatsoever for any loss or damage caused by service, maintenance or
repair by unauthorised personnel.

Soundcraft Electronics Ltd. 
Unit 2
Borehamwood Ind Park
Rowley Lane
Borehamwood 
Herts. 
WD6 5PZ 
England  

Tel:   081 207 5050
Fax: 081 207 0194

Page 2

Содержание Spirit Monitor

Страница 1: ...Page 1...

Страница 2: ...in any form or by any means electronic electrical mechanical optical chemical including photocopying and recording for any purpose without the express written permission of Soundcraft Electronics Ltd...

Страница 3: ...g Guide 10 Getting to know your console 12 Facilities 12 Input Channel 12 Output Section 16 Master Section 18 Using your SPIRIT Monitor Console 20 Initial Set Up 20 Applications 22 Care of your mixer...

Страница 4: ...Monitor incorporates circuit technology identical to that used on some of the most sophisticated Soundcraft con soles The input channels are able to accept a wide range of Microphone and Line level si...

Страница 5: ...best performance may be directly influenced by the quality of the stage monitor mix Indeed the monitor engineer may be required to pro vide a number of quite different individual monitor mixes often...

Страница 6: ...lems with microphone placement The Monitor Sends provide a way of routing the input sig nals to a number of outputs to create individual mixes for artists foldback or additional speaker outputs Pre Fa...

Страница 7: ...r is often judged amongst other factors by the amount of Headroom available This is a measure of the reserve avail able to cope with sudden peaks in the input signal without distortion caused by Clipp...

Страница 8: ...llowing section will help you to connect SPIRIT Monitor correctly Two different types of audio connectors are used 3 pin XLR and 1 4 three pole A gauge jacks These are used in several configurations a...

Страница 9: ...plexity of balanced outputs These outputs employ ground compensation to cancel out the effects of variation in ground potential between the mixer and other equipment which would otherwise show up as h...

Страница 10: ...Finding Guide Repairing a sound mixing console requires specialist skills but basic Fault Finding is within the scope of any user if a few ba sic rules are followed Get to know the Block Diagram of yo...

Страница 11: ...fault Many faults are the result of incorrect connection or control settings which may have been overlooked Basic Troubleshooting is a process of applying logical thought to the signal path through th...

Страница 12: ...er is con nected but care must be taken when using unbalanced sources because of the voltage present on pins 2 and 3 of the XLR connector NOTE The microphone should always be plugged in before switchi...

Страница 13: ...avoidance The switch should nor mally be released when not required 5 LINE SELECT The LINE switch selects Line input when pressed and Micro phone input when released When Line is selected the Gain ra...

Страница 14: ...cy controls covering a range from 40 to 400Hz and providing much greater flexibility than a conventional LF bass control The MID section with a frequency range from 250Hz to 8kHz is particularly versa...

Страница 15: ...en the ON switch see 10 below is re leased regardless of the Pre Post setting 10 ON The ON switch routes the channel signal to the monitor sends and is positioned PRE FADER to mute all outputs from th...

Страница 16: ...is at the 0 mark providing 10dB of gain above that point if required OUTPUT SECTIONS There are eight Monitor Outputs arranged in pairs Each Output offers identical facilities 1 MONITOR OUTPUTS Each Mo...

Страница 17: ...revent feedback through the talkback mic Note that Talkback is disabled when DIM is pressed 6 DIM Pressing the large DIM switch attenuates the monitor output by 6dB as an immediate way of eliminating...

Страница 18: ...ches to the PFL signal when any PFL switch is active The WEDGE output always listens to the same source signal as the headphones but is also affected by DIM status and any external connections to the...

Страница 19: ...monitor outputs and adds the Talkback mic signal also dimming the wedge output to prevent feedback Note that ALL T B is disabled when ALL DIM is pressed 9 ALL DIM Pressing ALL DIM attenuates all outpu...

Страница 20: ...nise and learn by ex periment the importance of correct choice of inputs microphone placement and control settings particularly with respect to feedback avoidance Suitable initial control positions ar...

Страница 21: ...r each component in the mix and watch the respective output meter for any hint of overload As more channels are added to the mix the meters may move into the red section Adjust the overall level using...

Страница 22: ...s particularly important to ensure that the input connections provide complete isolation between the two consoles to avoid hum problems and possible degradation of the signal The provision of balanced...

Страница 23: ...signal path usually caused by the peak signal voltage being limited by the circuit s power supply voltage dB decibel a ratio of two voltages or signal levels expressed by the equation dB 20Log10 V1 V...

Страница 24: ...ncies i e based on a bandpass response PFL pre fade listen a function that allows the operator to monitor the pre fade signal in a channel independently of the main mix rolloff a fall in gain at the e...

Страница 25: ...BOARD SC3005 R48 R55 C21 C28 C27 R51 R50 R47 R45 R44 L9 To change Sends 1 4 to PRE FADE carefully unsolder link J4 using the minimum of heat to avoid the possibility of tracks lifting on the PCB Repl...

Страница 26: ...gain 50dB DISTORTION THD measured 1kHz at 20dBu 20Hz to 20kHz Bandwidth Line in to Output 0 006 CROSSTALK Measured 1kHz Sine Wave Channel Send attenuation 90dB Channel Fader Attenuation 85dB Channel...

Страница 27: ...UTPUT LEVELS Mic Input Maximum Level 10dBu Line Input Maximum Level 30dBu Any Output Maximum Level 21dBu METERING 16 Segment LED Bargraphs Accuracy Relative to 0dB 1dB Dimensions 590 5 824 16 ch 1088...

Страница 28: ...3 1 2 3 1 2 3 3 1 1 2 2 S S Y Y S S T T E E M M B B L L O O C C K K D D I I A A G G R R A A M M Page 28...

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