SoundCraft M-SERIES User Manual page 17

USER GUIDE
PROBLEM SOLVING
Basic problem solving is within the scope of any user if a few basic rules are followed.
• Get to know the Block Diagram of your console (see page 36).
• Get to know what all parameters and/or connection in the system are supposed to do.
• Learn where to look for common trouble spots.
The Block Diagram is a representative sketch of all the components of the console, showing how they
connect together and how the signal flows through the system. Once you have become familiar with the
various component blocks you will find the Block Diagram is quite easy to follow and you will have gained a
valuable understanding of the internal structure of the console.
Each Component has a specific function and only by getting to know what each part is supposed to do will
you be able to tell if there is a genuine 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 the console and
tracking down the problem by elimination.
• Swap input connections to check that the source is really present. Check both Mic and Line inputs.
• Eliminate sections of the channel by using the insert point to re-route the signal to other inputs that
are known to be working.
• Route channels to different outputs or to auxiliary sends to identify problems on the Master
section.
• Compare a suspect channel with an adjacent channel which has been set up identically. Use PFL
and AFL to monitor the signal in each section.
• Insert contact problems may be checked by using a dummy jack with tip and ring shorted together as
shown below. If the signal appears when the jack is inserted it shows that there is a problem with
the normalling contacts on the jack socket, caused by wear or damage, or often just dirt or dust.
Keep a few in your gig tool box.
If in doubt please contact Soundcraft customer support.
PRODUCTS UNDER WARRANTY
USA customers should contact the National Service Manager at Soundcraft USA.
Telephone: (818) 920 3212
UK customers should contact their local Dealer.
Outside the UK and USA, customers are requested to contact their territorial distributor who is able to offer
support in the local time zone and language. Please see the Distributor listings on our website
(http://www.soundcraft.com) to locate your Local Distributor.
OUT-OF-WARRANTY PRODUCTS
For out-of-warranty consoles purchased in the United Kingdom, please contact the Customer Services
Department (e-mail: soundcraft.csd@harman.com) at the factory in Potters Bar, Hertfordshire:
Telephone +44 (0)1707 665000.
For all other out-of-warranty consoles, please contact the appropriate territorial distributor.
When mailing or faxing please remember to give as much information as possible. This should include your
name, address and a daytime telephone number.
Should you experience any difficulty please contact Customer Services Department
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