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ALLEN&HEATH
SERVICE MANUAL
3
WZ
12M
Copyright © 2007 Allen & Heath Limited. All rights reserved
Allen & Heath Limited
Kernick Industrial Estate, Penryn, Cornwall, TR10 9LU, UK
http://www.allen-heath.com
3
ALLEN&HEATH
WZ
12M
AP6770 Issue 1
Page - 1 - of 10

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Summary of Contents for ALLEN & HEATH WZ312M

  • Page 1 ALLEN&HEATH SERVICE MANUAL Copyright © 2007 Allen & Heath Limited. All rights reserved Allen & Heath Limited Kernick Industrial Estate, Penryn, Cornwall, TR10 9LU, UK http://www.allen-heath.com ALLEN&HEATH AP6770 Issue 1 Page - 1 - of 10...
  • Page 2: Limited One Year Warranty

    Limited One Year Warranty This product is warranted to be free from defects in materials or workmanship for period of one year from the date of purchase by the original owner. To ensure a high level of performance and reliability for which this equipment has been designed and manufactured, read this User Guide before operating.
  • Page 3: Software And Firmware

    CONTENTS DEVELOPMENT CHANGES SERVICING PRECAUTIONS AND GENERAL NOTES PARTS IDENTIFICATION • How to order parts • Exterior parts • Interior parts SOFTWARE & FIRMWARE SPECIFICATION ALLEN&HEATH AP6770 Issue 1 Page - 3 - of 10...
  • Page 4 DEVELOPMENT CHANGES NOTE: These changes have been implemented at the factory as part of our ongoing development policy. They are not critical to the basic function of the unit. It is for the owner / service engineer to decide to update a unit with development changes. ALLEN&HEATH AP6770 Issue 1 Page - 4 - of 10...
  • Page 5 Servicing Precautions – General Notes Service personnel: Service work should be carried out by technically qualified service personnel only. Mains power is dangerous and can kill. Do not attempt to work on a linear or switched mode power supply if you are not suitably qualified to do so. Do not attempt to repair surface mount circuit assemblies unless you are suitably qualified and have the necessary facilities to do so.
  • Page 6: Operation

    Testing the unit: Before operating the equipment, read and adhere to the Important Safety Instructions printed in the user guide. Test that the service work has been successfully carried out. Shipping the unit: Use adequate packing such as the original packaging or purpose designed flight case if you need to ship the unit.
  • Page 7: Parts Identification

    PARTS IDENTIFICATION How to order parts Parts must be ordered from our distributor in your territory. A list of international distributors can be viewed at http://www.allen-heath.com/UK/distributors.asp UK parts must be ordered through an appointed A&H dealer or service centre. A list of UK service centres can be viewed at http://www.allen-heath.com/UK/service_centres.asp EXTERIOR PARTS...
  • Page 8 AB2810 XLR screw AJ8071 AJ2887 AC. Black switch cap Side moulding Right AA5463-R Side moulding Left AA5463-L ALLEN&HEATH AP6770 Issue 1 Page - 8 - of 10...
  • Page 9: Interior Parts

    INTERIOR PARTS 003-647JIT Rear connector 003-171JIT PSU PCB Feet AK0102 003-644JIT Mono input PCB 003-668JIT Master meter LED PCB 003-667JIT 003-665JIT 003-646JIT 003-645JIT Mix master 5/9 Mix master 6/10 Mix master 7/11 Mix master 8/12 003-669JIT 003-669JIT 003-850JIT MASTER MONO Distribution Headphone Distribution PCB ALLEN&HEATH...
  • Page 10: Specification

    SPECIFICATION Performance Maximum output level XLR +26dBu into 600 ohms max load Jack +21dBu into 2k ohm max load Internal headroom Channels +21dB Mix +23dB Meters 3 colour LED, quasi peak response Sensitivity 0VU = +4dBu at XLR output Master meters 12 segment -30 to +16dB Channel meters 2 segment -12, +16dB (5dB before clip) Frequency response 20Hz to 50kHz +/-0.5dB THD+n at +10dBu 1kHz Channel to mix out <...

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