ALLEN & HEATH QU-16 Service Manual
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ALLEN & HEATH QU-16 Service Manual

ALLEN & HEATH QU-16 Service Manual

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QU-16/QU-16C
SERVICE MANUAL
ISSUE 1.4
DISTRIBUTOR USE ONLY
Copyright © 2022 Allen & Heath. All rights reserved .
ALLEN&HEATH
Allen & Heath Limited, Kernick Industrial Estate, Penryn, Cornwall, TR10 9LU, UK
https://www.allen-heath.com

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Summary of Contents for ALLEN & HEATH QU-16

  • Page 1 QU-16/QU-16C SERVICE MANUAL ISSUE 1.4 DISTRIBUTOR USE ONLY Copyright © 2022 Allen & Heath. All rights reserved . ALLEN&HEATH Allen & Heath Limited, Kernick Industrial Estate, Penryn, Cornwall, TR10 9LU, UK https://www.allen-heath.com...

  • Page 2: Table Of Contents

    RECN5324 ..............................25 Diagnostics ............................... 26 CPU LEDs ..............................26 Disassembly Procedure ..........................27 7.5v Fader Motor Supply ........................... 27 Changing the Screen ..........................30 Remove Surface PCB ..........................31 Channel LEDs ............................32 Allen & Heath Ltd QU-16 - Service Manual...
  • Page 3 Pin Assignments ............................33 Routing Overview ............................34 PSU Circuit Diagram ............................. 35 Other Technical Information .......................... 36 Block Diagram ............................36 Specifications ............................36 Weights & Dimensions ..........................36 Allen & Heath Ltd QU-16 - Service Manual...

  • Page 4: Notices

    Heed the important mains plug wiring instructions in the Safety Instructions sheet. Always replace the equipment mains fuse with the correct type and rating as marked on the equipment panel. Allen & Heath Ltd QU-16 - Service Manual...
  • Page 5 Never solder directly onto the cells. Perform soldering as quickly as possible. Never reverse the battery polarity when installing. Do not short the batteries. Do not attempt to recharge batteries. Do not disassemble the batteries. Never heat batteries or throw them into fire. Allen & Heath Ltd QU-16 - Service Manual...

  • Page 6: Parts Identification

    SCREW M3X12 PAN TORX BLK (secure Power connector) AB9036 PILLAR M3X11 HEX BRASS (pillars on surface PCB) AB0102 M3 nylock nuts (for AB9036 pillars) AB0233 SCREW M3X4 PAN TORX AB2921 SCREW M4X8 BTN-HEAD TORX Allen & Heath Ltd QU-16 - Service Manual...
  • Page 7 004-392 AG8892 Qu-16,24 & 32 Headphone + USB 004-558 AG8904 Qu-16 Surface V2 004-1741-1 AG8925 Qu-16 Fader V3 (Previously V1 004-371 and V2 004-1271) AI8649-2 Qu-16 Fader Motor 100mm 5v 004-393 AG8977 Qu-16 USB + Ethernet 004-409 AG9146 Qu-16 Ethercon *Due to current lack of stock for CPU Board 004-1653X, use 004-362X until stuck runs out.

  • Page 8: Chrome Version

    AJ9842 Fader Knob QTY: 17 AA12216 Base Panel Metalwork AA8952-L Left Side Trim -- Metal AA8771-L Left Side Moulding Plastic AA8952-R Right Side Trim -- Metal AA8771-R Right Side Moulding -- Plastic Allen & Heath Ltd QU-16 - Service Manual...

  • Page 9: Original Version

    AJ9015 Fader Knob QTY: 17 AA12216 Base Panel Metalwork AA8952-L Left Side Trim -- Metal AA8771-L Left Side Moulding Plastic AA8952-R Right Side Trim -- Metal AA8771-R Right Side Moulding -- Plastic Allen & Heath Ltd QU-16 - Service Manual...
  • Page 10 Parts Identification AB6571 AC Cable Clamp AK0102 Feet AJ2887 20mm QTY: 2 AC Push Button AK5069 Feet 15mm QTY: 2 AA8906 Keymat Multi AA8905 Keymat Channel Allen & Heath Ltd QU-16 - Service Manual...

  • Page 11: Circuit Board Layout

    3.- Headphones + USB PCB AG8892 004-392 4.- Ethernet + USB PCB AG8977 004-393 5.- Connector PCB AG8890 004-391 6.- Audio PCB AG12557 004-1342 7.- CPU PCB AG13349 004-1653 8.- LCD TFT Screen 004-397 Allen & Heath Ltd QU-16 - Service Manual...

  • Page 12: Wire Layout

    2.- AL8993 WFMA 7V5 PWR DIST PSU to Fader & CPU (Y-Lead) 3.- AK9239 CPU to LCD TFT 4.- AH9188 Cat5e Ethernet Network 5.- AH9094 USB B (From Eth/USB board) 6.- AH9095 Cat5e Ethercon SLink 7.- AH9105 USB Qu-Drive (From Headphone/USB board) Allen & Heath Ltd QU-16 - Service Manual...

  • Page 13: Circuit Board Identification

    Circuit Board Identification AG8700 Part Number 004-385 AL3178 AL0466 Fuse Holder Description Qu-16 PSU Fuse 20mm 1.6 AT AE8143 AL3458 AC Inlet AJ2887 Button AL8837 Switch AA8885 Heatsink AA8886 Heatsink AA8886 AE5147 Heatsink Allen & Heath Ltd QU-16 - Service Manual...
  • Page 14 Harness CN22 to AG9146 AH9188 AH9105 AH9104 AL9188 Harness RJ12 Harness Harness Harness CN19 to CN24 to CN26 to CN14 to AG8977 CN4 AG8892 AG8977 AG8925 AL8993 Harness CN2/CN 17 to AG8700 Allen & Heath Ltd QU-16 - Service Manual...
  • Page 15 AL9019 XLR Female 4 pin QTY: 1 AL2410 XLR Female QTY: 17 AL2411 XLR Male QTY: 13 AL9137 Jack switched (ST1 R & ST2 R) QTY: 2 AL9136 Jack un-switched QTY: 22 Allen & Heath Ltd QU-16 - Service Manual...
  • Page 16 Parts Identification AG12557 Previously AG8891 Part Number 004-1342 Previously 004-372 Description Qu-16 Audio AL8995 servicing section before fitting this part Harness CN1 to AG8892 AL8991 Harness CN5 to AG8700 Allen & Heath Ltd QU-16 - Service Manual...
  • Page 17 Parts Identification AG8892 Part Number 004-392 Description QU-16 Headphone/USB AI8007 Alt Out AI8007 Headphone AL6893 Headphone AE6107 LED 3MM AL9143 AH9105 USB Qu Drive Harness CN5 to AG8838 AL5323 ST3 Input Allen & Heath Ltd QU-16 - Service Manual...
  • Page 18 Parts Identification AG8904 Part Number 004-558 Description Qu-16 surface AI8567 Encoder QTY 18 Allen & Heath Ltd QU-16 - Service Manual...
  • Page 19 Parts Identification AG8925 Part Number 004-1741-1 (Previously 004-371 & 004-1271) Description Qu-16 Fader V2 AL8992 Harness CN14 to AG8838 AI8649-2 Motor Fader QTY: 17 Allen & Heath Ltd QU-16 - Service Manual...
  • Page 20 Parts Identification AG8977 Part Number 004-393 Description Qu-16 USB/Ethernet AH9188 Harness CN4 to AG8838 AH9094 Harness CN2 to AG8838 Allen & Heath Ltd QU-16 - Service Manual...
  • Page 21 Parts Identification AG9146 Part Number 004-409 Description Qu-16 Ethercon AH9095 Harness RJ12 CN1 to AG8838 Allen & Heath Ltd QU-16 - Service Manual...

  • Page 22: Servicing Information

    RECN 4699 Audio Boards Type 2 RECN 3111 ST3 noise while USB connected RECN 2963 Audio Board Mic Protection RECN5324 Qu-16 CPU V2 For further details look below or refer to the resource space: Allen & Heath Asset Library Backup show In order to preserve customer data, the settings should be stored and copied to two separate storage devices before attempting any resets or servicing.

  • Page 23: Forced Reinstall Of Firmware

    Press and hold the above keys whilst powering on the unit. A hard reset should be performed after a forced reinstall of firmware. Hard Reset Press and hold the above keys (Reset & Setup) whilst powering on the unit Allen & Heath Ltd QU-16 - Service Manual...

  • Page 24: User Settings Reset

    Press and hold the above keys (Reset & Home) whilst powering on the unit Calibrations Go to Setup Utility Calibration Use the routines here to calibrate the touch accuracy of the Touch Screen and positional accuracy of the Motor Faders. Follow the on-screen instructions Allen & Heath Ltd QU-16 - Service Manual...

  • Page 25: Recn4699

    -16 and Qu-Pac units. RECN3111 Qu-16/Qu-24 mixers fitted with Headphone PCB AG8892_3 or earlier may experience noise when a USB device is connected to the Qu-Drive socket and ST3 is configured to LOCAL with NO cable connected to the 3.5mm input socket.

  • Page 26: Recn5324

    Servicing Information RECN5324 New 004-1653 PCBA QU-16 CPU 56724 (AG13349_1) is an alternative assembly to replace 004-362 PCB ASSY QU-16 CPU (AG8838_3) 004-1653 PCBA QU-16 CPU 56724 (AG13349_1) 004-362 PCB ASSY QU-16 CPU (AG8838_3) The new 004-1653 PCB requires additional support fixings.

  • Page 27: Diagnostics

    LD4 DSP Programmed (U26 & U27), Yellow LED on solid LD9 DSP Programmed (U28 & U29), Yellow LED on solid LD12 DSP FX Programmed (U34), Yellow LED on solid LD14 USB Processor Alive, Yellow LED with heartbeat pattern Allen & Heath Ltd QU-16 - Service Manual...

  • Page 28: Disassembly Procedure

    Disassembly Procedure Disassembly Procedure Allen & Heath Ltd QU-16 - Service Manual...
  • Page 29 Disassembly Procedure Allen & Heath Ltd QU-16 - Service Manual...

  • Page 30: 7.5V Fader Motor Supply

    Disassembly Procedure 7.5v Fader Motor Supply Allen & Heath Ltd QU-16 - Service Manual...

  • Page 31: Changing The Screen

    Changing the Screen Disconnect flexi cables from Hot Melt Glue must be carefully removed and re-applied at the connectors during this procedure. Refer to the section in page 21 for further details. Remove CPU Allen & Heath Ltd QU-16 - Service Manual...

  • Page 32: Remove Surface Pcb

    Remove Surface PCB Remove Surface Remove screen by pressing the side locks of the bezel For more details on how to replace screen, follow the -16/24 located at the Allen & Heath Asset Library Allen & Heath Ltd QU-16 - Service Manual...

  • Page 33: Channel Leds

    Disassembly Procedure Channel LEDs Allen & Heath Ltd QU-16 - Service Manual...

  • Page 34: Pin Assignments

    From PSU CN5 to CPU From to Audio Board CN7 Connector Board CN Pins 2, 4 & 6 = +7v5 Pins 1, 3 & 5 = GND - Pins 34 & 35 = +7v5 Allen & Heath Ltd QU-16 - Service Manual...

  • Page 35: Routing Overview

    Routing Overview Routing Overview Allen & Heath Ltd QU-16 - Service Manual...

  • Page 36: Psu Circuit Diagram

    PSU Circuit Diagram PSU Circuit Diagram Allen & Heath Ltd QU-16 - Service Manual...

  • Page 37: Other Technical Information

    Weights & Dimensions All of this information is available to end users and can be found at the following location. Qu-16 - Allen & Heath (allen-heath.com) For further information please contact Allen&Heath Product Support Product Support - Allen & Heath (allen-heath.com) Allen &...

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