ALLEN & HEATH WZ20:8:2 User manual

ALLEN&HEATH
WARNING – HIGH VOLTAGES
Power Supply Unit (PSU) work should only
be carried out by qualified personnel.
We recommend that you use an approved Allen Heath
service centre for all power supply work.
Please contact your local Allen Heath distributor for more details.
http://www.allen-heath.com/

ALLEN & HEATH 22E-8SM
CONTENTS
INTRODUCTION, SERVICE AND TECHNICAL SUPPORT ............................................................................. 2
TECHNICAL DESCRIPTION ............................................................................................................................. 3
SPECIFICATION & CONNECTIONS................................................................................................................. 4
DIMENSIONS FOR FLIGHTCASING, INSTALLING THE CONSOLE.............................................................. 5
REMOVING THE CONNECTOR CIRCUIT BOARD.......................................................................................... 6-7
REMOVING A MONO or STEREO INPUT, LEFT or RIGHT CIRCUIT BOARD .............................................. 8-9
INTERNAL LINK OPTIONS ............................................................................................................................... 10-11
ORDERING A CONSOLE, SPARE PARTS & ASSEMBLIES .......................................................................... 12-14
FRONT & REAR PANELS ................................................................................................................................. 15
TRANSFORMER & POWER WIRING ............................................................................................................... 16-17
MONO INPUT CIRCUIT BOARD COMPONENT IDENT .................................................................................. AG2894
MONO INPUT CIRCUIT DIAGRAM ................................................................................................................... C2894
STEREO INPUT CIRCUIT BOARD COMPONENT IDENT .............................................................................. AG2937
STEREO INPUT CIRCUIT DIAGRAM ............................................................................................................... C2937
LEFT CIRCUIT BOARD COMPONENT IDENT................................................................................................. AG2938
LEFT CIRCUIT BOARD CIRCUIT DIAGRAM sheet 1 ...................................................................................... C2938
LEFT CIRCUIT BOARD CIRCUIT DIAGRAM sheet 2 ...................................................................................... C2938
RIGHT CIRCUIT BOARD COMPONENT IDENT .............................................................................................. AG2939
RIGHT CIRCUIT BOARD CIRCUIT DIAGRAM sheet 1 .................................................................................... C2939
RIGHT CIRCUIT BOARD CIRCUIT DIAGRAM sheet 2 .................................................................................... C2939
CONNECTOR CIRCUIT BOARD COMPONENT IDENT .................................................................................. AG2940A
CONNECTOR CIRCUIT BOARD CIRCUIT DIAGRAM sheet 1 ........................................................................ C2940A
CONNECTOR CIRCUIT BOARD CIRCUIT DIAGRAM sheet 2 ........................................................................ C2940A
CONNECTOR CIRCUIT BOARD CIRCUIT DIAGRAM sheet 3 ........................................................................ C2940A
CONNECTOR CIRCUIT DAUGHTER BOARD COMPONENT IDENT............................................................. AG2940B
CONNECTOR CIRCUIT DAUGHTER BOARD CIRCUIT DIAGRAM ............................................................... C2940B
BLOCK DIAGRAM.............................................................................................................................................. 34
INTRODUCTION
Theinformationpresentedinthis manual isintended for competenttechnical personnel tocarry out serviceand product
supportfortheMixWizardWZ20:8:2.Weassume thatthereaderisfamiliarwiththerelated electronictheoryandaudio
terminology, and is able to carry out basic servicing, fault-finding and repair of audio equipment of this type. Service
personnel should also be familiar with audio systems, mains earthing and power requirements, as well as handling
precautions.
ForfurtherinformationontheoperationandapplicationoftheMixWizardWZ20:8:2 pleaserefertotheUSERGUIDE
publication AP2932 supplied with each console.
Whilstwebelievetheinformationinthismanualtobereliablewedonotassumeresponsibilityforinaccuracies.Wealso
reserve the right to make changes in the interest of further product development.
SERVICE AND TECHNICAL SUPPORT
Under normal conditions the MixWizard WZ 20:8:2 does not require user maintenance or internal calibration. Any
service work required should be carried out by qualified technical personnel only.
We are able to offer further product support through our worldwide distribution network. To help us provide the most
efficient service please would you quote the console serial number in any communication regarding this product.
copyright © 1997 ALLEN & HEATH. All rights reserved Publication .....................AP2933 Issue 1
SAFETY WARNING !
Mains electricity is dangerous and can kill. Mains voltage is present within the unit. Do not remove any
coverswithmainsconnected. Donotcarryoutanywork within the unit whileitispowered. High voltage
components are insulated for safety but should not be touched with power applied. The mains voltage
settingisindicatedonthe on therear panel nextto the mainssocket. Check thatthismatchesyourlocal
mains supply. Check your mains wiring and earthing before switching on.
DO NOT REMOVE THE MAINS EARTH CONNECTION!
Thechassisisalwaysconnectedtomainsearth.Audio0Vconnectstothechassisinternally. Should
problems be encountered with ground loops operate the audio ground lift switches on other equipment
connected to the unit or disconnect the cable screens at one end. Refer to the section on 'EARTHING'
in the User Guide.

ALLEN & HEATH
2E-8SM 3
TECHNICAL DESCRIPTION
The ALLEN & HEATH MixWizard WZ 20:8:2 is a dedicated 8-track rack mount or desk standing mixer with 8 mono
inputs and 6 stereo inputs. All mono input channels have a 4 band 2-sweep EQ with 6 individual aux sends and Direct
output.The 6stereoinputs havea 2bandEQwith2 stereocue/aux sendsand2 monoaux sends. The8tape returninputs
haveindividuallevelandpancontrolswithastereocuefacility.InadditiontheMixWizardWZ20:8:2alsohasextensive
talkback facilities and an internal 1kHz sinewave oscillator for level checking The internal power supply unit is located
in the rotating connector module.
CONSTRUCTION
All metal chassis for 19" rack mount in 10U space. Comprises a 16swg steel front panel housing individual channel
circuit assemblies interconnected by means of soldered copper wire busbars. The connectors are housed in a rotating
connectormoduleforeitherrackordeskmountedapplications. Accesstothechannelinternalassembliesisbyremoval
of the 18swg folded steel base. Access to the connectors and power supply components is by removal of the rear cover
of the connector module without the need to remove the console base. The channel assemblies may be removed for
servicing.
THE CIRCUIT COMPONENTS
The MixWizard WZ 20:8:2 is manufactured using high performance industry standard linear op-amp and discrete
semiconductorcircuitdevices.Inparticulartheswitchesandpotentiometershaveproventobedurableandproblemfree.
When operated correctly the normal performance of the unit introduces no noticeable audio signal degradation.
AUDIO INPUTS AND OUTPUTS
All XLR connector inputs and outputs are balanced (differential) with high impedance inputs and low impedance
outputs. To use these with unbalanced equipment the -ve signal should be linked to 0V in the cable or input connector.
All unbalanced connections are line level 3-pole TRS ¼" jack sockets. All outputs are low impedance and thus capable
of driving several high impedance inputs simultaneously. All inputs and outputs are in phase.
THE PFL SYSTEM
The console PFL switches send pre-fade signals to the PFL mix bus. These signals are switched with 4053 CMOS gates
locatedon theRIGHT circuitboard (PCBNo: AG2939).The supplyfor the4053 is± 8VDC andis derivedlocallyfrom
the ±16V. The gates are switched when a PFL switch is selected.
EARTHING THE AUDIO SYSTEM
Theconsolechassisisconnectedtomainsearthviathemainspowercable. Consoleaudio0Visalsoconnectedtochassis.
FOR SAFETY REASONS NEVER REMOVE THE EARTH WIRE FROM THE MAINS PLUG.
Multipleearthpathscauseearth(ground)loopswhichmayresultinaudiblehumandinterference.Thesemaybeavoided
by making sure that there is only one path to earth from each piece of equipment, disconnecting audio cable screens at
one end if necessary.
INTERCONNECTIONS
Where possible use balanced connections for the CHANNEL inputs, AUX/CUE SENDs, and both L/R outputs to
minimise noise pick-up. Avoid running audio cables near to mains or lighting cables, thyristor dimmer units or power
supplies etc. These may cause audible hum and buzz. The use of low impedance sources significantly reduces
interference pick-up. Check the cables for correct wiring to avoid problems with phase reversal and unreliable
connection. The MixWizard WZ 20:8:2 follows the convention for XLR pin 2 and jack tip = signal hot (+).
ALWAYS USE BALANCED CABLES WHEN CONNECTING TO PHANTOM POWERED MICROPHONES.
WHEN USING NON-PHANTOM POWERED OR UNBALANCED MICROPHONES OR UNBALANCED LINE
SOURCES, MAKE SURE THAT THE +48V IS DISABLED TO PREVENT ACCIDENTAL DAMAGE.
INDIVIDUAL CHANNELS CAN HAVE +48V DISABLED, REFER TO THE LINK OPTIONS SECTION IN THE USER
GUIDE OR SERVICE MANUAL.
If ground loops cause problems, connect the cable screen at one end only. Balanced outputs may be connected to
unbalanced inputs and vice versa by linking the signal cold (-) to 0V ground.

ALLEN & HEATH 2E-8SM
4
CONNECTIONS
SPECIFICATIONS
0 dBu = 0.775 Volts rms 0 dBV = 1 Volt rms
CROSSTALK: Referred to driven channel at 1kHz
Channel fader off ......................... <-90dB
Channel off ........................... <-90dB
NOISE: Measured rms 22Hz to 22kHz bandwidth
Mic input EIN (150 ohm source) . <-128dB
LR output residual noise ...............<-97dBu 101dBS/N
LR faders unity mix noise............ <-82dBu 86dB S/N
POWER SUPPLY: ...................... internal, linear regulated
AC Mains input: ........................... IEC socket with lead supplied
100 to 240V AC @ 50/60Hz
factory wired to country voltage
Power consumption ..................... 35W max
Mains Fuse rating:....................... 100-120V AC T630mA 20mm
220-240V AC T315mA 20mm
HEADROOM: .............................. +21dB channels
+23dB mix to output
MAX OUTPUT: XLR ................... +27dBu 2kohm max load
jack.................... +21dBu 2kohm max load
METERS:........ L, R..................... peak reading 12 bar LED
PEAK LEDs: ............................... Turn on 5dB before clipping
FREQUENCY RESPONSE:........ 20Hz to 50kHz +0/-1dB
DISTORTION: THD+Noise at +14dBu 1kHz
Channel to mix output ....................................... 0.008%
WEIGHT: unpacked 11kg, packed 14kg
INPUTS:
Channel 1-8 IN ..............XLR ........................... pin 2 hot, 3 cold, bal PAD out .......... 2k ohm variable -60 to -20dBu
TRS jack.................... tip hot, ring cold, bal PAD in............. >10kohm variable -30to+10dBu
Stereo 9/10-19/20 IN TRS jack (L/M,R) ...... tip sig, ring gnd, unbal ........... >10k ohm ........-10dBV / +4dBu
Tape 1-8 IN....................TRS jack.................... tip sig, ring gnd, unbal .............. >10k ohm ........-10dBV / +4dBu
2-Track 1 IN ...................XLR ........................... pin 2 hot, 3 cold, balanced ....... >10k ohm ........+4dBu
2-Track 2 IN ...................TRS jack.................... tip hot, ring cold, balanced ....... >10k ohm ........-10dBV
Talkback mic IN .............TRS jack.................... tip sig, ring gnd, unbalanced .... 2k ohm ............variable -50 to -20dBu
INSERTS:
Channel 1-8 Insert .........TRS jack.................... tip send, ring return, unbal ....................<75 ohm, >3k ohm...... 0dBu
L-R mix ..........................TRS jack.................... tip send, ring return, unbal ....................<75 ohm, >7k ohm ...... -2dBu
OUTPUTS:
2-Track 1 OUT...............XLR ........................... pin 2 hot, 3 cold, balanced ....................<75 ohm ..........+4 dBu
2-Track 2 OUT...............TRS jack.................... tip hot, ring cold, impedance bal ........... <75 ohm ..........-10dBV
Tape 1-8 OUT................TRS jack.................... tip hot, ring cold, impedance bal ...........<75 ohm ..........-10dBV / +4dBu
Cue 1-2 OUT .................TRS jack.................... tip hot, ring cold, impedance bal ...........<75 ohm ..........-2dBu
Aux 1-4 OUT..................TRS jack.................... tip hot, ring cold, impedance bal ........... <75 ohm ..........-2dBu
Monitor L,R OUT ...........TRS jack.................... tip hot, ring cold, impedance bal ........... <75 ohm ..........-2dBu
PHONES OUT ...............TRS jack.................... tip left, ring right........... for stereo headphones 30 to 600 ohms

ALLEN & HEATH
2E-8SM 5
DIMENSIONS
The diagrams below give the dimensions for flightcasing the console.
INSTALLING THE CONSOLE
The MixWizard Series features the ALLEN & HEATH Quick Change Connector (QCC) system. The rear connector
modulemay behinged andlocked intoeither oftwo positions: Rearconnectors fordesktop operationwith thecontrol
panelslopedataconvenient15degrees,or Undersideconnectorsfor19" rackmountingin acompact10Uspace. The
connector position can be easily changed at any time to fit your application.
19" Rack Mounting
Mount the console in the rack
using 4x M6 bolts each side for
maximum strength. We
recommend you fit the bolts with
plastic cup washers to protect the
panel,andtheylookgood...These
should be available from the
supplierof therack unitora good
hardware store.
To change the position
remove the crosshead
locking screw on each side,
swingtheconnectorpodinto
position, and refit the two
screws.
Do not transport or carry
theconsolewiththelocking
screws removed.
Do not attempt to remove
theconnectorpodfromthe
console.

Desktop Operation
Theconsoleis fitted withrubber feet to
ensure it does not slip or scratch the
work surface. The control panel is
angled at 15 degrees for operating
convenience.

ALLEN & HEATH 2E-8SM
6
REMOVING THE CONNECTOR CIRCUIT BOARD ASSEMBLY
Beforebeginning any servicework, removeall power tothe unitand disconnect anysignal cableswhere necessary. The
rotating connector module must be set for desk top operation to gain access to the cover screws. It is not necessary to
disconnect the connector module from the main unit. Service work is best carried out with the unit inverted on a clean
worksurface suitablycoveredtoprotectthe mixercosmetics. Ensureadequatelightinganduse thecorrect tools.Access
to the connector circuit board options can be achieved without the complete removal of the circuit board.
A
B
B
B
B
B
Remove 2 screws
BASE
REAR COVER
1.) Working from the rear of the console remove screws (A) fixing the XLR connectors to the panel and using
a 12mm Nutdriver, remove jack nuts (B). Also remove the 2 screws indicated.
2.) With the unit inverted, remove the 4 connector cover screws (C) and remove the cover.
C
Access to the connector circuit board options can be achieved at this stage by carefully easing
the circuit board assembly from the rear panel with the harnesses still connected.
It is not necessary to completely remove the circuit board assembly to change the options.
Refer to the section INTERNAL LINK OPTIONS for more details.
A
A

ALLEN & HEATH
2E-8SM 7
To completely remove the connector circuit board assembly
4.) First remove the base cover of the main unit to gain more access. Refer to 2 and 3 in the section
REMOVING AN INPUT, LEFT or RIGHT CIRCUIT BOARD for details on the removal of the base
cover.
5.) Cut the cable ties along the bottom edge of the connector circuit board fixing the harness to the connector
circuit board assembly and lift the circuit board assembly from the chassis.
6.) Then carefully disconnect the ribbon cable and the 4 flexible flat cables plugged into the circuit board
assembly.
7.) Before desoldering the wires connected to the circuit board, make a note of their colour and locations.
8.) The circuit board can now be completely removed from the chassis.
When all service work is complete, remove all debris such as solder, component legs and wire clippings from inside the
console and check your work carefully before reassembly. To refit the connector circuit assembly follow the above
procedure in reverse order. Make sure all harnesses are correctly aligned and plugged on. Test for correct operation.
Unit inverted with the base and connector cover removed.
CONNECTOR CIRCUIT
BOARDASSEMBLY
Flexible flat cables

ALLEN & HEATH 2E-8SM
8
REMOVING AN INPUT, LEFT or RIGHT CIRCUIT BOARD ASSEMBLY
Beforebeginning anyservicework, removeallpowertothe unitanddisconnect anysignal cableswherenecessary. The
rotating connector module must be set for desk top operation to gain access to the cover. Service work is best carried
out with the unit inverted on a clean work surface suitably covered to protect the mixer cosmetics. Ensure adequate
lighting and use the correct tools. Access to the channel circuit board options can be achieved without the removal of
the circuit board.
1.) Ifcompletelyremovingacircuitboardassembly,pull offtheknobs andremovethe potnutsand faderscrews
from the circuit assembly to be removed. The switch caps can remain in place. If removing the LEFT circuit
board assembly remove the nut on the headphone socket.
2.) Working from the front of the mixer remove screws and nuts (A) fixing the base cover to the front panel.
A
B
3.) With the unit inverted, remove the 2 remaining screws (B) in the base cover and remove the base.
BASE

ALLEN & HEATH
2E-8SM 9
Access to the input channel circuit board options can be achieved at this stage by carefully cutting
and resoldering the link options as necessary. It is not necessary to completely remove the circuit
board assembly to change the options.
Refer to the section INTERNAL LINK OPTIONS for more details.
Unit inverted with the base and connector cover removed.
BUSS WIRES
C
To completely remove a circuit board assembly
4.) Identify the circuit board assembly to be removed and then cut the buss wires half way between each circuit
board.Disconnecttheflexibleflat cable(C)plugged intotheconnectors mountedalongthe edgeofthe circuit
board. If removing the LEFT or RIGHT circuit board assembly, the ribbon cable (D) and flexible flat cable
(E) will have to be carefully unplugged as well.
5.) The circuit board can now be removed.
When all service work is complete, remove all debris such as solder, component legs and wire clippings from inside the
console and check your work carefully before reassembly. To refit the circuit assembly follow the above procedure in
reverse order. Make sure all harnesses are correctly aligned and plugged on. Test for correct operation.
Cut each wire
in the centre

Overlap
and
solder



Buss wires
D
LEFT
RIGHT
MONO
STEREO

ALLEN & HEATH 2E-8SM
10
Channel Pre-Fade Aux Send Options
Thepre-fadesendsaresetpost-EQandpost-ONasstandard. However,linkoptionsoneachchannelassemblyallow
pre-EQ and/or pre-ON if required. Refer to the diagram below.
Channel Direct Output Source
The direct outputs are sourced post-fader as standard. A link option is available per channel to select a pre-fade
source. Refer to the diagram below.
INTERNAL LINK OPTIONS
The console is set to satisfy most applications that should be encountered. However, the following internal link options
are offered to provide alternative settings for those applications that may require them. Access to the options requires
the removal of the rear covers depending on which option settings are to be altered. Refer to the section for removing
circuit board assembly on which the link option is located. Some options involve the cutting of circuit board tracks and
soldering of circuit board links and should only be carried out by competent technical personnel. Further information
is available from ALLEN & HEATH if required.
CONNECTOR CIRCUIT
BOARD ASSEMBLY
MONO INPUT CIRCUIT BOARD
ASSEMBLIES
X8
Unit inverted with the base and connector cover removed.
STEREO INPUT CIRCUIT BOARD
ASSEMBLIES
X6
LEFT
RIGHT
DAUGHTER CIRCUIT BOARD
ASSEMBLY
X1

ALLEN & HEATH
2E-8SM 11
2 Track 1 & 2 Track 2 Input Sensitivity
Both 2 track inputs can be set for nominal high level +4dBu operation or low level -10dBV operation as is common
with much of the external equipment available today. The factory default setting for 2 track 1 is nominal high level
+4dBu operation and for 2 track 2 the factory default setting is low level -10dBV operation. Most outboard
equipmentincludesoutputleveladjustmentbutifyouwishtochangetheinputsensitivity, therearconnectorcircuit
board assembly can be reconfigured.
1234567890123456789012
1
23456789012345678901
2
1
23456789012345678901
2
1
23456789012345678901
2
1
23456789012345678901
2
1
23456789012345678901
2
1
23456789012345678901
2
1234567890123456789012
Connector circuit board assembly
trackside view
Solderlinkbetweensquare
padsfor-10dBVoperating
level on 2 Track 1.
Cuttracksbetweensquare
pads for +4dBu operating
level on 2 Track 2.
Phantom Power Disable
Itisperfectlysafetoconnectnon-phantompoweredsourcessuchasdynamicmicrophonestopoweredXLRsockets
providingthatbalancedleadsandsourcesareused. The+48Vsupplyiscurrentlimitedthrough6.8kohmresistors
toeach XLRtoprevent damage. However,youcandisablephantom powertoselectedchannelsby cuttingoutlinks
on the rear connector circuit assembly.
Phantom power
links
Connector circuit board assembly.
component side view
2 Track1 & 2 level
Option location
8 7 6 5 4 3 2 1

ALLEN & HEATH 2E-8SM
12
ORDERING SPARE PARTS
ORDERING A CONSOLE
To order a new console unit please specify the model number and AC mains voltage required.
MODEL DESCRIPTION ORDER CODE
MixWizard 20:8:2 8 Mono + 6 Stereo Input channels WZ 2082/volts
MixWizard 16:2 16 Mono Input channels WZ 1602/volts
MANUALS AND SUPPORT DOCUMENTATION
DESCRIPTION ORDER CODE
MixWizard 20:8:2 User Guide AP2932
MixWizard 20:8:2 Service Manual AP2933
MixWizard 20:8:2 Brochure AP2941
SERVICE TOOLS
The tools required to service the MixWizard range of products are standard to an electronics service workshop and are
easily obtainable. The following items are necessary for disassembly and service access:
1-point Crosshead screwdriver (M3, 4AB) AT0004
2-point Crosshead screwdriver (M4, 6AB) AT0002
11mm AF Nutdriver (potentiometer nuts, headphone socket nuts)
12mm AF Nutdriver (jack nuts)
ORDERING AN ASSEMBLY
The following assemblies for the MixWizard 20:8:2 are supplied fully tested. Please quote the description and order
code for the part required.
Printed circuit (PCB) assemblies:
Mono Input PCB assembly 002-257
Stereo Input PCB assembly chans 13/14, 15/16 002-258
Stereo Input PCB assy chans 9/10, 11/12, 17/18, 19/20 002-270
Left PCB assembly 002-259
Right PCB assembly 002-260
Connector & Daughter PCB assembly 002-261
IDC connector harnesses:
MixWizard WZ 20:8:2 26 way Master harness AL2978
ORDERING A SPARES KIT
It is recommended that the spares kit order code 002-247is held and maintained by the service agent to enable in-field
servicerepairstotheMixWizardWZ20:8:2independentoftheALLEN&HEATHfactory.Commonlyavailableitems
such as resistors, capacitors, tools and soldering equipment are not included. The contents of the kit is listed below.
Individual spare parts may be ordered. Please quote the description and order code for the part required.

ALLEN & HEATH
2E-8SM 13
DESCRIPTION ORDER CODE QTY
Fixings:
Screw 4AB x 5/16" Pan Pozi Black AB0057 10
Screw M2.5 x 4mm Pan Pozi Black AB2944 10
Screw M3 x 4mm Pan Pozi Black AB0233 10
Screw M3 x 8mm Pan Pozi Black AB0073 5
Screw M3 x 6mm TT Pan Pozi Black AB0071 5
Screw M3 x 10mm CSK Pozi Black AB0093 5
Screw M3 x 10mm Pan Pozi Black AB0076 5
Screw M3 x 12mm Pan Pozi Black AB0078 5
Nylock Nut M3 AB0102 5
Knobs and caps:
Knob Yellow & Grey 11mm D AJ2079 10
Knob Dark Grey & Grey 11mm D AJ2078 10
Knob Green & Grey 11mm D AJ2077 10
Knob Blue & Grey 11mm D AJ2075 10
Knob Brown & Grey 11mm D AJ2080 10
Knob Red & Grey 11mm D AJ2074 10
Knob L./blue & Grey 11mm D AJ2076 10
Fader Knob 11mm White+Black line AJ8078 10
Fader Knob 11mm Yellow+White line AJ8080 5
Fader Knob 11mm Blue+Black line AJ8081 5
Button 5.5mm Square Grey AJ0363 10
Button 5.5mm Square Red AJ0364 10
Button 5.5mm Square White AJ0373 10
Faders, Potentiometers, switches, and connectors:
10KD fader 100mm AI8108 5
10KD x 2 fader 100mm AI8116 5
20KK (203K) AI8003 5
20KB (203B) centre click AI8004 5
200KC x 2 (204C) AI8005 5
20KB x 2 (203B 14mm wide) AI8006 5
20KK x 2 (203K 14mm wide) AI8007 5
10KAC x 2 (103KAC 14mm wide) AI8008 5
5KD reverse (502RD) AI8111 5
5KB (502B) AI8112 5
Pot Nut 9mm AB8050 10
Switch 2PCO Latching AL0162 5
Jack Socket Vert PCB+nut (IN, INSERTS, ST1/2) AL8082 10
Jack Socket Vertical PCB + nut AL8114 10
Jack Socket Headphone AL0328 1
XLR 3 Pin Female Vertical PCB Mount AL2410 5
XLR 3 Pin Male Vertical PCB Mount AL2411 5
LEDs and Semiconductors:
LED 3mm T1 Yellow AE0084 5
LED 3mm T1 Green AE0085 5
LED 3mm T1 Red AE0086 5
LED Bar Rectangular 8Green/3Yellow/1Red AE2701 2
Transistor 2N4403 PNP AE0273 5
Transistor BC214C PNP AE0031 2
Transistor BC549 NPN AE0020 2
IC TL072CP Dual Op Amp AE0046 5
IC NE5532N OP-AMP AE0221 1
IC LM339N Quad Comparator AE0071 2
IC CMOS 4053B AE0117 3
IC SSM2142P Balanced output driver AE0302 -

ALLEN & HEATH 2E-8SM
14
POWER SUPPLY:
Mains lead IEC-2pin EURO AH0205 -
Mains lead IEC-3pin UK AL0206 -
Mains lead IEC-3pin US (C33) AL0323 -
Mains Fuse 20mm T315mA (UK,EU) AL0349 5
Mains Fuse 20mm T630mA (USA,CAN) AL0297 5
Transformer 30VA AM0918 -
IC Adjustable Regulator 783 (+48V DC) AE0214 2
IC Regulator 7815 (+15V DC) AE0047 2
IC Regulator 7915 (-15V DC) AE0048 2
Insulating kit TO220 AA0693 2
Miscellaneous:
MixWizard WZ 16:2 Packing assembly 002-245 -
MixWizard WZ 20:8:2 Packing assembly 002-271 -
Flex cable 39 way 200mm AH2900 2
Flex socket 39 way straight AL2902 -
Flex socket 8 way 90deg AL2901 -

ALLEN & HEATH
2E-8SM 15
FRONT & REAR PANELS

XXX SWITCH