Alesis Micron User manual

ALESIS
MICRON (Q02)
Service Manual
P/N: 8-31-0147-A
ATTENTION!
THIS DOCUMENT CONTAINS SENSITIVE
PROPRIETARY INFORMATION.
ALL RECIPIENTS MUST HAVE A CURRENT
NON-DISCLOSURE AGREEMENT ON FILE
WITH ALESIS, LLC.
DO NOT MAKE ILLEGAL
COPIES OF THIS DOCUMENT
The information in this document contains privileged and confidential information.
It is intended only for the use of those authorized by Alesis. If you are not the
authorized, intended recipient, you are hereby notified that any review,
dissemination, distribution or duplication of this document is strictly prohibited. If
you are not authorized, please contact Alesis and destroy all copies of this
document. You may contact Alesis at [email protected] or at
[email protected].
Copyright © 2004 Alesis, LLC
Confidential Alesis Service Manual 8-31-0147-A

Confidential Alesis Service Manual 8-31-0147-A
Preface
This document is intended to assist the service technician in the operation,
maintenance and repair of the Alesis device. Together with the User Reference
Manual, this document provides a complete description of the functionality and
serviceability of the Device. Any comments or suggestions you may have
pertaining to the document are welcome and encouraged.
READ THIS!
In addition to any purchase price that Alesis may charge as consideration for Alesis selling or
otherwise transferring this service manual (“Manual”) to you, if you are not a service and repair
facility (“Service Center”) authorized by Alesis in writing to be an authorized Service Center,
Alesis sells or transfers the Manual to you on the following terms and conditions:
Only Service Centers authorized by Alesis in writing are authorized to perform service and repairs
covered by an Alesis warranty (if any), and transfer of the Manual to you does not authorize you
to be an authorized Service Center. Therefore, if you perform, or if the Manual is used to
perform, any service or repairs on any Alesis product or part thereof, any and all
warranties of Alesis as to that product and any service contract with Alesis for that
product shall be voided and shall no longer apply for such product, even if your services
or repairs were done in accordance with the Manual.
All service or repairs done by you or with reference to the Manual shall be solely your
responsibility, and Alesis shall have no liability for any such repairs or service work. All such
service or repairs are performed at the sole risk of the person performing the service or
repairs. You agree that all such work will be performed in a competent, professional and safe
manner at all times and to indemnify and fully hold Alesis and its successors and assigns
harmless in the event of any failure to so perform.
Your purchase of the Manual shall be for your own ultimate use and shall not be for purposes of
resale or other transfer.
As the owner of the copyright to the Manual, Alesis does not give you the right to copy the
Manual, and you agree not to copy the Manual without the written authorization of Alesis. Alesis
has no obligation to provide to you any correction of, or supplement to, the Manual, or any new or
superseding version thereof.
Alesis shall have the right to refuse to sell or otherwise transfer repair parts or materials to you in
its sole discretion. You shall not use, sell or otherwise transfer spare or replacement parts
supplied by Alesis to you (i) to repair or be used in products manufactured for or by third parties
or (ii) to any third parties for any purpose.
You shall not make any warranties or guarantees with respect to the products of Alesis or the use
thereof on behalf of Alesis or in your own name.
The foregoing describes the entire understanding related to sale or transfer of the Manual to you,
and no other terms shall apply unless in a writing signed by an authorized representative of
Alesis.
All Trademarks are property of their respective companies.

Warnings
TO REDUCE THE RISK OF ELECTRIC SHOCK OR FIRE, DO NOT EXPOSE
THIS PRODUCT TO WATER OR MOISTURE.
The arrowhead symbol on a lightning flash inside a triangle is
intended to alert the user to the presence of un-insulated
"dangerous voltage" within the enclosed product which may be of
sufficient magnitude to constitute a risk of electric shock to persons.
The exclamation point inside a triangle is intended to alert the user
to the presence of important operating, maintenance and servicing
instructions in the literature which accompanies the product.
REPAIR BY ANY PERSON OR ENTITY OTHER THAN AN AUTHORIZED
ALESIS SERVICE CENTER WILL VOID THE ALESIS WARRANTY.
PROVISION OF THIS MANUAL DOES NOT AUTHORIZE THE RECIPIENT TO
COMPETE WITH ANY ALESIS DISTRIBUTOR OR AUTHORIZED REPAIR
SERVICE CENTER IN THE PROVISION OF REPAIR SERVICES OR TO BE
OR MAKE REPAIRS AS AN AUTHORIZED SERVICE CENTER.
ALL REPAIRS DONE BY ANY ENTITY OTHER THAN AN AUTHORIZED
ALESIS SERVICE CENTER SHALL BE SOLELY THE RESPONSIBILITY OF
THAT ENTITY, AND ALESIS SHALL HAVE NO LIABILITY TO THAT ENTITY
OR TO ANY OTHER PARTY FOR ANY REPAIRS BY THAT ENTITY.
Regarding the Power Supply Fuse
CAUTION: The product under service may employ the use of a
replaceable fuse. Danger of fire or electrocution if fuse is
incorrectly replaced. Replace with only the same type or
equivalent type recommended by the equipment manufacturer.
Regarding the Internal Battery
CAUTION: The product under service may employ the use of a
internal battery. Danger of explosion if battery is incorrectly
replaced. Replace only with the same or equivalent type
recommended by the manufacturer. Dispose of used batteries
according to the manufacturer's instruction.
Confidential Alesis Service Manual 8-31-0147-A

Confidential Alesis Service Manual 8-31-0147-A
Safety Instructions
Carefully read the applicable items of the operating instructions and these safety
suggestions before using this product. Use extra care to follow the warnings
written on the product itself and in the operating instructions. Keep the operating
instructions and safety suggestions for reference in the future.
1. Power Source. The product should only be connected to a power supply which is described
either in the operating instructions or in markings on the product.
2. Power Cord Protection. AC power supply cords should be placed such that no one is likely to
step on the cords and such that nothing will be placed on or against them.
3. Periods of Non-use. If the product is not used for any significant period of time, the product's
AC power supply cord should be unplugged from the AC outlet.
4. Foreign Objects and Liquids. Take care not to allow liquids to spill or objects to fall into any
openings of the product.
5. Water or Moisture. The product should not be used near any water or in moisture.
6. Heat. Do not place the product near heat sources such as stoves, heat registers, radiators or
other heat producing equipment.
7. Ventilation. When installing the product, make sure that the product has adequate
ventilation. Improperly ventilating the product may cause overheating, which may damage the
product.
8. Mounting. The product should only be used with a rack which the manufacturer
recommends. The combination of the product and rack should be moved carefully. Quick
movements, excessive force or uneven surfaces may overturn the combination which may
damage the product and rack combination.
9. Cleaning. The product should only be cleaned as the manufacturer recommends.
10. Service. The user should only attempt the limited service or upkeep specifically described in
the operating instructions for the user. For any other service required, the product should be
taken to an authorized service center as described in the operating instructions.
11. Damage to the Product. Qualified service personnel should service the unit in certain
situations including without limitation when:
a. Liquid has spilled or objects have fallen into the product,
b. The product is exposed to water or excessive moisture,
c. The AC power supply plug or cord is damaged,
d. The product shows an inappropriate change in performance or does not operate
normally, or
e. The enclosure of the product has been damaged.

Specifications
Sound Engine
Sound Generation:
Alesis proprietary DSP Analog Modeling
Polyphonic Voices:
8, each with 3 oscillators, 2 multi-mode filters, 3 envelope
generators, 2 LFOs, programmable effects send and
modulation matrix.
Program Memory:
512 Preset Programs, 32 Multi-timbral Setups, all
user-rewritable
Effects:
4 Drive Effects (1 each per Part) plus Master Effects (Shared)
Audio Input
Input Connectors: 2 Balanced 1/4” TRS jacks
Maximum Input Level: +5.2dBu (1.41VRMS) = -0dBFS
Input Impedance: 10kΩ
Audio Output
Output Connectors: 4 Impedance-Balanced 1/4” TRS
jacks, ¼” TRS Headphone Jack
Maximum Output Level: +18dBu (6.17 VRMS) = -0dBFS
Output Impedance: 1kΩ
Audio Performance
Signal To Noise Ratio: >95 dB A-weighted, Ext In to Main
or Aux Out
THD+N: < 0.005%, External In to Main or Aux Out
Frequency Response: 20-20kHz±0.20dB, External In to
Main or Aux Out
Power Consumption: 12 Watts max (100-240VAC/50-60Hz)
Physical
Keyboard: 37 keys (velocity, release velocity sensitive)
Real-Time Controllers: 3 360-degree Parameter Knobs, 2
Assignable Modulation Sliders,
Assignable Pitch Wheel,
Pedal Jacks: Assignable Exp pedal jack, Sustain pedal jack
MIDI Connections: MIDI In, MIDI Out, MIDI Thru
Audio Outputs: Main L/R , Aux L/R, Headphone (1/4” TRS)
Dimensions (WxHxD): 22.75” x 2.75” x 7.75” / 577.85 x
69.85 x 196.85 mm
Weight: 8.25 lbs / 3.5 kg
Volume
The (volume) knob on the far left-hand side of the Micron
raises and lowers
the volume. If you don’t hear anything as you play the
Micron,
suspect the (volume) knob’s setting.
Real-time controllers
The (m1) and (m2) sliders, (pitch) wheel, and (x/y/z knobs),
located on the left half of the Micron, provide real-time
control of
the Micron’s sounds.
Performance buttons
The buttons in this cluster switch octaves, set the tempo, and
perform other performance-related functions.
SERVICE MANUAL
MODEL:Q02

Confidential Alesis Service Manual 8-31-0147-A
ALESIS
MICRON (Q02)
COMPONENTS

Display
Information relevant to the current operation is shown here.
Control knob circle
These are the Micron’s most important controls –the control
knob and the buttons that surround it. Pressing one of these
buttons –[programs], [setups], [config], [patterns], or
[rhythms] –puts you into one of the Micron’s primary modes of
operation. Turning the control knob then cycles through options.
Pressing the control knob allows for editing.
Key concepts
Here are the Micron’s most important concepts:
Programs
Programs are the Micron’s sounds, built from its oscillators,
envelopes, filters, modulation matrix, and other analog-style
components.
.
Rhythms
Rhythms are combinations of drum programs with patterns.
Think of a drum machine with its interchangeable sounds and
patterns. That’s pretty close to what rhythms are.
Patterns
Patterns are repeating melodic and/or rhythmic motifs.
Arpeggiosand step sequences are examples of patterns.
Setups
Setups combine multiple programs, rhythms, patterns, and more.
They are the Micron’s most powerful and most sonically
sophisticated element.
Navigating with the transparent control
knob and its buttons
Use the transparent control knob to the right of the display and its
surrounding circle of buttons to navigate through the Micron’s
options. Most Micron functions involve pressing the buttons and
then turning or pushing this knob.
Green Light/Red Light
The buttons circling the control knob glow green when selected
and glow red when the control knob has been pushed (enteringedit mode).
The exception is the [config] button. [config] only glows red,
since it only performs editing functions.
At any one time, only one of the buttons will glow, indicating that
the Micron is operating within that mode.
Turn
Turn the control knob to cycle through various options.
Push
Push the control knob to edit the option displayed. Push again to
stop editing.

DISASSEMBLY PROCEDURES
1. REMOVAL OF TOP AND BOTTOM PANEL (Fig.1)
(A)TAKE OUT THE 8 PCS SCREW FIXING THE KEYBED FROM WHICH THE BOTTOM CHASSIS
(B)TAKE OUT THE 7 PCS NUT OF 1/4”CONNECTORS FROM TOP PANEL
(C)TAKE OUT THE 16 PCS SCREW FROM WHICH THE BOTTOM PANEL
(Fig.1)
2. REMOVAL OF MAIN PCB AND LED PCB (Fig.2)
(A)REMOVAL THE 2 PCS SCREW FROM WHICH LED PCB
(B)REMOVAL THE 6 PCS SCREW FROM WHICH MAIN PCB
(C)REMOVAL THE 8 PCS OF CABLE CONNECTORS FROM MAIN PCB
(Fig.2)

3. REMOVAL OF ASSY PCB (Fig.3)
(A)REMOVAL THE 3 PCS SCREW FROM THE TOP PANEL RIGHT PCB
(B)REMOVAL THE 4 PCS SCREW FROM THE LCD PCB
(C)REMOVAL THE 6 PCS SCREW FROM THE TOP PANEL CENTER PCB
(D)REMOVAL THE 4 PCS SCREW FROM THE TOP PANEL LEFT PCB
(E)REMOVAL THE 2 PCS SCREW FROM THE ASSY PITCH WHEEL
(Fig.3)

WIRING DIAGRAM
(US/EU/UK/AUS NZ)

PACKING DIAGRAM
(US/EU/UK/AUS NZ)

EXPLODE DIAGRAM
(US/EU/UK/AUS NZ)
SEQUENCIAL NO OF EXPLODE DIAGRAM WILL BE MARKED ON REF. COLUMM OF BOM LIST

Confidential Alesis Service Manual 8-31-0147-A
ALESIS
MICRON (Q02)
BOM

LEVEL P/N DESCRIPTION QTY REF
1PT130442401 FIXED HOLDER 2 1
1MT1304449 FIXED METAL 2 2
1SC0308RBZI SCREW 19 3
1SC0306RICI SCREW 23 4
19-15-0307 END CAP LEFT 1 6
17-10-0122 KEYBED 37 KEYS 1 9
1PT133030401 BOTTOM CHASSIS 1 11
1SC0310RBZI SCREW 8 12
1SC3506AICI SCREW 16 13
1BAAR-034 PU STAND 4 14
1LAC22ALE27 STICKER BARCODE S/N 1 15
1PT131067101 CAP FADER 2 17
1PT130442301 FIXED HOLDER 1 18
19-15-0304 KNOB VOLUME 1 19
19-15-0303 KNOB 3 20
1PT131064501 BUTTIN 7 21
1PT131063601 BUTTIN 5 22
1BAPS-W010 SWITCH CAP 1 23
1PT1310675 KNOB 1 24
19-01-0082 FRONT PANEL 1 25
19-10-0065 LENS LCD 1 27
19-15-0308 END CAP RIGHT 1 29
1SC2606RINI SCREW 4 30
1CN0220000502 CONNECTOR 1 32
1CN0620004701 CONNECTOR 1 34
1CN1625402101 CONNECTOR 1 35
1CN1625403901 CONNECTOR 2 36
1PT1304711 INSULATOR SHEET 1 37
1NM1106112 VELVET CARPET 2 38
1BAGL-70L CLIP 1 39
1EVA1304408 EVA 2 40
1TF57023201UL TRANSFORMER 1
1PQ02ALE01 PACK 1
2LAC52ALE01 LABEL 1 16
27-51-1219 SHEET 1
2CTQ02513ALE01 CARTON 1
2CGQ02310ALE01 INNER CARTON 1
2PUQ0201 FOAM 1
2PUQ0202 FOAM 1
27-91-1002 GEL SILICA 1
2PE150350BO POLYBAG 0.01
2SD68035000 SOFT SHEET 1
27-51-0166 INSTRUCTION BOOK 1
27-51-0182 QUICK START MANUAL 1
27-51-0154 OPERATION MANUAL 1
27-51-1279 MANUAL REFERENCE PV 1
1LAP67YAH255 LABEL 4
1TW9-44-0009 LCM組品 128
2CN0220001001 單頭聯結器(2P 100MM) 1
24-14-0016 雙排排針16P 254 180 1
29-44-0009 LCM 1
19-96-0100 PITCH WHEEL組品 18
2CN0320001501 連結器(3P 150MM) 1
2MT1304412 轉輪固定鐵片 1
2WS1306505 華司 1
20-09-0037 可變電阻5KB 1
27-13-0080 熱縮套管1/16"X5/8" 2
29-06-0030 彈簧 1
Q02 BOM

LEVEL P/N DESCRIPTION QTY REF
Q02 BOM
29-15-0301 PITCH MOD轉輪 1
1TWPC04A02001 FRONT PANEL PCB ASS'Y 1
2PC04A020 FRONT PANEL PCB 1
2TWPC04A020A01 FRONT PANEL PCB ASS'Y 1 7
3CN0420002002 4P CONNECTOR (200mm) 1J5
3CN2625401301 26P CONNECTOR (130mm) 1J7
3PC04A020A FRONT PANEL PCB 1
3TE622000302 3P CONNECTOR 1(J6)
3TE812000411 4P CONNECTOR 1(J5)
30-09-0044 VR 2.5KB 3R8~10
30-16-2002 RESISTOR 20K (SMD)1% 1R5
30-17-0103 RESISTOR 4×10K 1/16W 3R3,4,6
30-17-0331 RESISTOR 4×330O 1/16W 2R1,2
31-08-0222 ELECT 22UF/16V 2C3,4
31-08-0223 ELECT 220UF/16V 1C13
31-56-0102 CERAMIC 1000P (SMD) 1C6
31-56-0104 CERAMIC 0.1UF (SMD) 14 C1,2,5,7~12,14~18
32-51-4401 TRANSISTOR 2N4401 5Q1~4,28
32-51-4403 TRANSISTOR 2N4403 2Q10,16
32-62-0595 IC 74HC595 1U1
32-72-0339 IC LM339 1U4
32-72-4051 IC CD4051 1U3
33-02-0049 RED LED 7D1~7
36-02-0050 SWITCH 7S5~11
2TWPC04A020B01 LEFT PANEL PCB ASS'Y 1 5
3PC04A020B LEFT PANEL PCB 1
3RS15218J05 RESISTOR 1K5 (SMD) 2R160,170
3TE10200602 6P HEADER 1J1
3TE622000401 4P HEADER 1J3
30-09-0046 VR 10KA 1R13
30-09-1038 VR 10KB 2R11,12
31-56-0104 CERAMIC 0.1UF (SMD) 4C11,12,19,20
2TWPC04A020C01 RIGHT PANEL PCB ASS'Y 1 26
3CN1225403301 12P CONNECTOR (330mm) 1J2
3PC04A020C RIGHT PANEL PCB 1
3RS75018J05 RESISTOR 75O (SMD) 1R14
31-56-0104 CERAMIC 0.1UF (SMD) 1C2
32-62-0595 IC 74HC595 1U2
33-03-0001 LED (TR1-STATE) 5D8~12
36-00-0008 ENCODER 1S13
36-02-0050 SWITCH 5S1~4,12
19-79-0328 MAIN PCB ASS'Y 1 31
2DIN4002 DIODE 8D1,2,5,8,11~14
2JKDJ-0702B-025 JACK 1J12
2MT1303215 HEATSINK 1(U3)
2NUT0103IZI NUT 1(U3)
2RS10118J05 RESISTOR 100O (SMD) 4R83,87,88,89
2RS10218J05 RESISTOR 1K (SMD) 17 R3,11~14,23~27,35,41~44,51,78
2RS10318J05 RESISTOR 10K (SMD) 8R1,5,37~39,45,48,84
2RS10418J05 RESISTOR 100K (SMD) 13 R17~22,28~32,81,82
2RS18218J05 RESISTOR 1K8 (SMD) 4R36,40,52,53
2RS20318J05 RESISTOR 20K (SMD) 4R54,55,74,75
2RS30218J05 RESISTOR 3K (SMD) 4R67,68,73,76
2RS51118J05 RESISTOR 510O (SMD) 2R15,50
2RS91218J05 RESISTOR 9K1 (SMD) 4R66,69,72,77
2R45001 RESISTOR 45O 1W 1R2

LEVEL P/N DESCRIPTION QTY REF
Q02 BOM
2TE10200601 6P CONNECTOR 1J14
2TE612000202 2P CONNECTOR 2J11,16
2WS073307IC WASHER 2(U3)
20-05-1399 RESISTOR 3.9O 2R91,92
20-16-2210 RESISTOR 221O (SMD)1% 10 R4,9,10,46,47,65,71,79,80,83
20-16-3650 RESISTOR 365O (SMD)1% 1R94
20-17-0103 RESISTOR 4×10K 1/16W 8R7,8,16,33,34,56,64,70
20-17-0221 RESISTOR 4×220O 1/16W 8R49,57~63
20-17-0470 RESISTOR 4×47O 1/16W 4R6,85,86,90
21-08-0222 ELECT 22UF/16V 17 C31,40~48,51,54~57,75,76
21-08-0228 ELECT 2200UF/16V 2C10,26
21-08-0333 ELECT 330UF/16V 1C60
21-12-0102 ELECT 10UF/63V 2C34,49
21-55-0561 CERAMIC 560P 14 C11~20,52,53,73,74
21-56-0104 CERAMIC 0.1UF 78 C1~4,9,21~25,27~30,32,33,35~39,50,61,
64~72,77~122
21-56-0151 CERAMIC 150P 4C58,59,62,63
21-56-0221 CERAMIC 220P 4C5~8
22-05-0111 TRANSISTOR J111 2Q2,3
22-11-1317 IC LM317 1U3
22-27-0060 IC AL3201 1U11
22-50-4149 DIODE 6D3,4,6,7,9,10
22-51-4401 TRANSISTOR 2N4401 2Q1,6
22-51-4403 TRANSISTOR 2N4403 2Q4,5
22-61-2417 IC LM1117 1U12
22-61-7807 IC LM340MP 1U13
22-62-0014 IC 74AHC14 1U8
22-66-6256 IC DRAM 256K 2U6,17
22-67-6257 IC SRAM 32K 1U18
22-70-5206 IC MCF5206E 1U15
22-71-0084 IC TL084 2U4,7
22-71-3079 IC MC33079 1U5
22-74-0181 IC TLP181 1U2
22-75-1101 IC AL1101 1U9
22-75-1201 IC AL1201 1U10
22-77-0096 IC AL3101 9U20~28
22-79-1818 IC DS1818 1U1
22-80-0007 IC 1U16
24-00-0002 5P MIDI 3J1~3
24-02-0007 7P JACK 7J4~10
24-14-0012 12P HEADER 1J18
24-14-0016 16P HEADER 1J17
24-14-0116 16P HEADER 2J15,19
24-14-2601 26P HEADER 1J13
25-03-0028 STANDOFF 1(U3)
26-02-0003 SWITCH 1S2
27-01-0024 CRYSTAL 12.288MHz 1X1
27-01-0035 OSCILLATOR 54MHz 1U19
29-40-0328 MAIN PCB 1
29-61-0121 IC 1U14
19-79-0332 LED PCB ASS'Y 1 10
2R10116 RESISTOR 100O 1/16W 3R1~3
2TE622000201 2P CONNECTOR 1J1
23-02-0049 RED LED 3D1~3
29-40-0332 LED PCB 1

Confidential Alesis Service Manual 8-31-0147-A
ALESIS
MICRON (Q02)
QC PROCEDURES

Q02 QC Test Procedures
Items required for test (one each unless otherwise specified):
•Q02 unit with current OS
•9VAC, 1.5A power adapter
•MIDI cable
•Sustain pedal
•Pair of headphones
•AP Computer w/ cables
Setup
1) Connect power adapter to power outlet and to Q02.
2) Connect the MIDI cable from Q02 MIDI OUT to Q02 MIDI IN.
3) Plug the headphones into the headphones output jack of the Q02. Turn
Master Volume knob (red knob) completely CCW.
4) Power up Q02 while holding down [Octave –] and [Octave +] buttons. This
brings the Q02 into diagnostic mode. Verify that the text “Push enc to test”
appears on the first line of the LCD.
Visual Inspection
1) Inspect the front panel for dents and scratches.
2) Make sure that the end caps are properly seated into the chassis. Verify that
they also don’t have any dents any scratches.
3) Verify that all the jacks on the rear of the Q02 have nuts installed.
Pitch wheel LEDs
1) Verify that the pitch wheel lights up red. The light should get bright and dim in
a cycle.
Expression Pedal Test
1) Plug the sustain pedal into the “expr” input jack of the Q02.
2) Press on the sustain pedal and verify that the LCD displays the text “Exp
pedal: 0”.
3) Release the sustain pedal and verify that the LCD now displays the text “Exp
pedal: 16383”
4) Plug the sustain pedal into the “sustain” input jack of the Q02.

Audio Output Test
1) While listening to the headphones, press a key and turn the Master Volume
knob clockwise until the sound is at a comfortable listening level (this verifies
that the Master Volume pot is functional). Verify that both the left and right
sides of the headphones produce a sound.
2) Plug the headphones into the Q02 audio output left jack. Verify that when a
key a pressed, a sound is heard on one side (left side) of the headphones.
NOTE: the Master Volume knob may require adjustment in order to hear this
sound more easily.
3) Repeat step 2) for the Q02 audio output right jack. The sound should again
be heard on the left side of the headphones.
Audio Output Test
1) Plug the headphones into the Q02 headphone output jack (Master Volume
knob may require readjustment to bring headphone output to a comfortable
listening level).
2) Press and hold down a key (do not release). A single sound should be heard
from the headphones.
3) Press and hold a second key (do not release the first key) and verify that a
second sound is heard together with the first one.
4) Press and hold a third key (do not release the first and second key) and verify
that a third sound is heard together with the first and second ones.
5) Repeat step 4) five more times, so that a total of eight notes are playing
simultaneously, each time verifying that the new note is heard along with the
existing notes that are already playing.
External Audio Input
1) Hold down the [phrase] and [latch] buttons together. Verify that the second
line of the LCD says “Audio in -> out”. Release the buttons.
2) Connect the AP generator output to the Q02 audio input left.
3) Set the AP generator output to produce a 2Vp, 1KHz sinewave and turn on
the output.
4) Verify that there is a sound from the left side of the headphones
5) Connect the AP generator output to the Q02 audio input right and verify that
there is a sound from the right side of the headphones.

AP Test
1) Unplug the headphones from the Q02 headphones jack.
2) Turn the Master Volume knob completely clockwise.
3) Connect the AP generator outputs A and B to the Q02 audio in left and right,
respectively.
4) Connect the Q02 main output left and right to the AP analyzer inputs A and B,
respectively.
5) Run the AP tests (SNR, THD+N, and frequency response).
6) Hold down the [phrase] and [latch] buttons together. Verify that the second
line of the LCD says “Synth -> audio out”. Release the buttons.
Automated Tests
The system will provide a series of tests must be passed. Before beginning,
verify that the sustain pedal is plugged into the “sustain” input jack.
PUSH THE ENCODER TO BEGIN AUTOMATED TESTS.
Each test is described below. The title of each section should appear on the first
line of the LCD.
Push all buttons.
1) Verify that the first line of the LCD says “Push all buttons”.
2) There are 7 rectangular buttons to the left of the LCD. Push each one.
Verify that the button lights red when it is pushed, and stays red for the
remainder of the test.
3) There are 5 round buttons to the right of the LCD. Push each one. Verify
that the button lights green when it is pushed, and lights red when it is
released. When a different round button is pushed, the light should turn off.
There should never be more than one round button lit.
4) When any button is pressed down, verify that the name of that button is
displayed on the LCD, and that the LCD indicates the button is pressed down
with the text “[button] down.”
5) When any button is released, verify that the LCD indicates the button has
been released with the text “[button] up.”
6) As each button is pressed, make sure that the silk screen on that button is not
scratched or misaligned. Also verify that all the buttons have a consistent feel,
and that they generate one “click” when pressed.
7) When all 12 buttons have been pushed, you will automatically go to the next
test.