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13

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 14).

Get to know what all controls and/or connections 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 under-
standing 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 sig-
nal 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 to monitor the signal in each section.

Insert-point contact problems may be checked by using an insert bypass 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 con-
tacts 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

UK customers should contact their local dealer.
Customers outside the UK 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 (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: [email protected]) at the factory in Pot-
ters Bar, Hertfordshire: Tel44 (0)1707 665000.
For all other out-of-warranty consoles, please contact the appropriate territorial dis-
tributor.
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 (e-mail:
[email protected])

Содержание MPMI

Страница 1: ...Thank you for purchasing a Soundcraft mixer Please visit WWW SOUNDCRAFT COM REGISTER to register your product and learn about the benefits of product registration...

Страница 2: ...1 USER GUIDE...

Страница 3: ...al optical chemical including photocopying and recording for any purpose with out the express written permission of Soundcraft Harman International Industries Limited Cranborne House Cranborne Road PO...

Страница 4: ...E 8 WIRING UP 10 BLOCK DIAGRAM 14 MONO INPUT CHANNELS 15 STEREO INPUT CHANNELS 18 MASTER SECTION 20 USING YOUR MPMi CONSOLE 24 MARK UP SHEETS 26 FITTING OPTIONAL RACK MOUNT BRACKETS 27 DIMENSIONS 27 A...

Страница 5: ...nly use attachments accessories specified by the manufacturer Use only with the cart stand tripod bracket or table specified by the manufacturer or sold with the apparatus When a cart is used use caut...

Страница 6: ...bol The wire which is coloured Blue must be connected to the terminal in the plug which is marked with the letter N The wire which is coloured Brown must be connected to the terminal in the plug which...

Страница 7: ...thin the product s enclosure that may be of suffi cient magnitude to constitute a risk of electric shock to persons CAUTIONS The exclamation point within an equilateral triangle is intended to alert t...

Страница 8: ...e employed in the MPMi bringing you the great Soundcraft quality in a small format console without compromise You will also be glad to know you have a one year warranty with your product from the date...

Страница 9: ...2 12 15 15 0 3 3 6 6 9 9 12 12 15 15 0 3 3 6 6 9 9 12 12 15 15 0 3 3 6 6 9 9 12 12 15 15 0 3 3 6 6 9 9 12 12 15 15 0 3 3 6 6 9 9 12 12 15 15 0 3 3 6 6 9 9 12 12 15 15 0 3 3 6 6 9 9 12 12 15 15 0 3 3 6...

Страница 10: ...Jack Plug your headphones into this socket Recommended headphones impedance is 32 ohms or greater 25 AUX 1 2 3 OUTPUTS Jacks These outputs can be used to send the channel signal to an artist s monitor...

Страница 11: ...wn although you should then keep cable lengths as short as possible to minimise inter ference pick up on the cable Note that the ring must be grounded if the source is unbalanced Set the input level u...

Страница 12: ...rces can be fed to both paths by plugging into the Left jack only Mix Outputs The MIX outputs are on XLR s wired as shown and incorporate impedance balancing allowing long cable runs to balanced ampli...

Страница 13: ...nd only at their source and not at both ends If the use of unbalanced connections is unavoidable you can minimise noise by following these wiring guidelines On INPUTS unbalance at the source and use a...

Страница 14: ...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 to monitor the signal in...

Страница 15: ...ONITOR OUT L MIX R OUT SOLO METERS L R 16 10 6 3 0 3 6 16 22 MONITOR METERS STEREO H PHONES HEADPHONES LEVEL MONITOR OUT LEVEL BALANCE FADER PK STEREO CHANNEL STEREO 1 2 IDENTICAL LEFT MONO RIGHT GAIN...

Страница 16: ...5mm 1 4 jacks Use this input for sources other than mics such as keyboards drum machines synths tape machines or DI d guitars The input is BALANCED for low noise and top quality from professional equi...

Страница 17: ...electronic instruments Turn to the left to cut by up to 15dB reducing hiss or excessive sibilance which can occur with cer tain types of microphone Set the knob in the centre detented position when no...

Страница 18: ...the right level 11 PFL When the latching PFL switch is pressed the pre fade pre mute signal is fed to the headphones control room output and meters where it replaces the MIX The SOLO LED on the Maste...

Страница 19: ...requencies by up to 15dB The centre frquency of the MF EQ is 720Hz LF EQ Turn to the right to boost low bass frequencies adding extra punch to synths guitars and drums Turn to the left to reduce hum b...

Страница 20: ...where it replaces the MIX The SOLO LED on the Master section illuminates to warn that a PFL is active The Left and Right meters display the PFL signal in mono This is a useful way of listening to any...

Страница 21: ...FL 0 10 POST PRE 48V L L R R REC OUT 2TRK IN LEVEL 0 10 0 10 0 10 0 10 0 10 TO MNTR TO MIX MIX L MIX R 16 10 6 3 0 3 6 12 16 22 MIX SOLO PHANTOM POWER 2TRK SUB TO MIX MNTR LEVEL LEVEL STE MNO MIX SUB...

Страница 22: ...ernal equipment 2 TRACK 3 2 TRACK IN These two RCA phono sockets are unbalanced Left and Right line level inputs used for connecting a play back device 4 2 TRACK LEVEL CONTROL This adjusts the signal...

Страница 23: ...level of the Mix outputs This should normally be set close to the 0 mark if the input GAIN settings have been correctly set to give maximum travel on the fader for smoothest control 14 SUB FADERS Thi...

Страница 24: ...al to the headphones control room output and meters where it replaces the MIX The SOLO LED on the Master section illuminates to warn that an AFL is active 23 PRE POST SWITCH This switch globally selec...

Страница 25: ...instruments where rejection of unwanted sounds and elimination of feed back is important The aim should be to place the microphone as close as physically possible to the source to cut out unwanted su...

Страница 26: ...r adjust the Master Faders Remember that the mixer is a mixer not an amplifier Increasing the overall level is the job of the amplifier and if it is impossible to provide adequate level it is probable...

Страница 27: ...10 0 10 0 10 0 10 0 10 0 10 0 10 0 10 0 10 0 10 0 10 0 10 L L L L L L L L L L L L L L L L L L L L L L L R R R R R R R R R R R R R R R R R R R R R R R AUX1 AUX1 AUX1 AUX1 AUX1 AUX1 AUX1 AUX1 AUX1 AUX1...

Страница 28: ...p the side mouldings in case you want to re fit them at a later date WARNING ensure that the mixer is disconnected from the mains supply and all other equipment before fitting the rack mounting bracke...

Страница 29: ...L R R REC OUT 2TRK IN LEVEL MIX L MIX R PHANTOM POWER HEADPHONES LINE LINE LINE LINE LINE LINE LINE LINE LINE INSERT INSERT INSERT INSERT INSERT INSERT INSERT INSERT INSERT HEADPHONES 32 Ohms GRAPHIC...

Страница 30: ...EVEL MIX L MIX R PHANTOM POWER HEADPHONES LINE LINE LINE LINE LINE LINE LINE LINE LINE INSERT INSERT INSERT INSERT INSERT INSERT INSERT INSERT INSERT INSTRUMENT AND VOCAL SOURCES FILL AMPLIFIER GRAPHI...

Страница 31: ...ERT INSERT INSTRUMENT AND VOCAL SOURCES GRAPHIC EQ AMPLIFIER FOLDBACK INDUCTION LOOP INDUCTION LOOP AMP CD PLAYER GRAPHIC EQ AMPLIFIER MAIN PA LEFT AND RIGHT HEADPHONES 32 Ohms CASSETTE OR DAT MACHINE...

Страница 32: ...MF swept 150Hz 3 5kHz 15dB LF 80Hz 15dB Q MF 1 5 EQ Stereo inputs HF 12kHz 15dB MF 720Hz 15dB LF 80Hz 15dB Q MF 0 8 Power Consumption Less than 40W Operating Conditions Temperature Range 5 C to 40 C...

Страница 33: ...32 TYPICAL CONNECTING LEADS...

Страница 34: ...leeve 3 3 Sleeve Sleeve 3 Sleeve Sleeve Sleeve Sleeve Sleeve Sleeve Sleeve Sleeve TIP TIP TIP TIP TIP TIP TIP TIP TIP TIP TIP TIP TIP TIP TIP TIP TIP RING RING RING RING RING RING RING RING RING RING...

Страница 35: ...or headphones to enable them to monitor the sounds they are producing Frequency response The variation in gain of a device with frequency Gain The amount of amplication in level of the signal Headroom...

Страница 36: ...wpass derived response Solo An almost generic term used to describe PFL or AFL functions Spill Acoustic interference from other sources Transient A momentary rise in the signal level Unbalanced A meth...

Страница 37: ...o and from the Dealer or Soundcraft and postage must be prepaid 4 This warranty shall only be valid if a the Equipment has been properly installed in accordance with instructions contained in Soundcra...

Страница 38: ......

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