ALESIS
airSynth (CG)
Service Manual
P/N: 8-31-0095-B
ATTENTION!
THIS DOCUMENT CONTAINS SENSITIVE
PROPRIETARY INFORMATION. ALL
RECIPIENTS MUST HAVE A CURRENT NON-
DISCLOSURE AGREEMENT ON FILE WITH
ALESIS DISTRIBUTION, LLC.
DO NOT DISTRIBUTE THIS DOCUMENT IN
ELECTRONIC FORM
WATERMARK DISTRIBUTION
This document has been flagged for watermark
distribution. Before supplying a printed copy to the
service center or distributor, print out a copy onto paper
that has been watermarked for the specific company.
This will allow for document distribution history.
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 support@Alesis.com.
Copyright © 2002 Alesis Distribution, LLC
Confidential Alesis Service Manual 8-31-0095-B
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.
Confidential Alesis Service Manual 8-31-0095-B
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.
Confidential Alesis Service Manual 8-31-0095-B
Safety Suggestions
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.
Confidential Alesis Service Manual 8-31-0095-B
ALESIS
airSynth (CG)
SCHEMATIC
AND
PCB
FILES
Confidential Alesis Service Manual 8-31-0095-B
CAMDB03A.SCH-1 - Sat Oct 21 09:27:59 2000
ALESIS
airSynth (CG)
ECN
HISTORY
Confidential Alesis Service Manual 8-31-0095-B
ALESIS
airSynth (CG)
BOM
Confidential Alesis Service Manual 8-31-0095-B
CG_BOM_AIMS_2002-04-15.xls
Part.Number UM Description Quantity Ref.Designator ECN
CG-UL EA SIGNAL PROCESSOR AIR-SYNTH CG - UL 1
10.00 CON Alesis Consigned Materi
20.00 VF Vendor Furnished Materi
7-40-0903 EA TRANSFORMER P3-UL 1
7-51-1219-B EA SHEET "WELCOME TO ALESIS FAMILY" 5 x 8" 1
CG-AS EA SIGNAL PROCESSOR AIR-SYNTH CG - AS 1
10.00 CON Alesis Consigned Materi
20.00 VF Vendor Furnished Materi
7-40-2011 EA TRANSFORMER P3-AS 1
CG-EU EA SIGNAL PROCESSOR AIR-SYNTH CG - EU 1
10.00 CON Alesis Consigned Materi
20.00 VF Vendor Furnished Materi
7-40-2007 EA TRANSFORMER P3-EU 1
CG-UK EA SIGNAL PROCESSOR AIR-SYNTH CG - UK 1
10.00 CON Alesis Consigned Materi
20.00 VF Vendor Furnished Materi
7-40-2015 EA TRANSFORMER P3-UK 1
CG EA SIGNAL PROCESSOR AIR-SYNTH CG 1
10.00 CON Alesis Consigned Materi
20.00 VF Vendor Furnished Materi
4-74-0029 EA CABLE STEREO RCA-RCA 922mm 2
5-00-0408 EA SCREW M4 x 8mm PPB PLASTITE 4 DOME TOWER
5-00-1002 EA SCREW 4-24 x 5/16" PPB PLAST 1 REAR PCB TO BOTTOM PANEL
5-00-1410 EA SCREW M4 x 10mm PPZ PLASTITE 4 BOTTOM PANEL
7-12-0043 EA ADHESIVE LENS DIGITAL CA 1 On Top Chassis
7-50-0153 EA STICKER BARCODE S/N CG 1
7-51-0100 EA MANUAL REFERENCE CG 1
7-52-0039 EA CHART PROGRAM CG 1
7-53-0018 EA STICKER QC W/ MFR DATE (UL APPROVED) 1
7-80-0279 EA INSERT FORMED-PLASTIC-TRAY AIR-SERIES 1
7-80-0292-B EA BOX GIFT CG 1
7-90-0710 EA POLYBAG 7" x 10"- 2 MIL 1 LITERATURE PACK
7-91-1002 EA GEL SILICA 5G PACKET 1
alesis Confidential 4/15/2002 Page 1
CG_BOM_AIMS_2002-04-15.xls
9-03-0030 EA PLATE BASE-WEIGHT AIR-SERIES 1 inside surface of bottom chassis panel
9-15-0241-A EA LENS INFRA-RED EMITTER AIR-SERIES - REV A 1 center of emitter/sensors base
9-15-0242-A EA LENS DOME AIR-SERIES - REV A 1 circular dome over emitter/sensors base
9-15-0243-A EA LENS DIGITAL-READOUT AIR-SERIES - REV A 1 top chassis panel over LED
9-15-0244-A EA TOWER EMITTER/RECEIVERS AIR-SERIES - REV A 1 holds emitter/sensors PCB
9-15-0245-A EA KNOB FUNCTION-SELECT AIR-SERIES - REV A 1 encoder arm
9-15-0287 EA CHASSIS BOTTOM CG 1 lower chassis panel
9-15-0288 EA CHASSIS TOP CG 1 upper chassis panel
9-23-0018 EA FOOT RUBBER DOME CA 4 bottom of lower chassis panel over screws
9-34-0026 EA FOAM EVA STRIPS 25 x 12 x 0.5mm X5 1 Under Emmitter
9-79-0189 EA ASSY PCB FRONT AIR-SYNTH CG 1
10.00 CON Alesis Consigned Materi
9-61-0028 EA IC SOFTWARE MPU/OTP MAIN V1.0 C/S:0XCCDC 2/26/01 CG 1
20.00 VF Vendor Furnished Materi
0-16-1001 EA RES 1.00K OHM 1/10W 1% 0805 7 R3 R5-6 R8-11
RES CHIP ARRAY 4 x 330 OHM 1/16W 5% ISOLATED c-
0-17-0331 EA c=0.8mm 4 R1-2 R4 R7
1-03-0474 EA CAP 0.47uF TANT-A SMD 10% 35V 1 C3
1-56-0104 EA CAP 0.1uF X7R 0805 10% 50V 3 C1-2 C4
3-04-0012 EA LED DISP 7-SEG RED 2-DIGIT COMMON-ANODE 0.43" 1 U2
4-10-0016 EA CON 8-PIN FLEX-PCB 90ø 1mm 1 J1
ENCODER 15-DETENT 11mm VERT-MT 15mm FLAT-
6-00-0006 EA THREADED-SHAFT .5mm-THROW 1 S1
7-01-0033 EA RESONATOR 12MHz CERAMIC W/CAPACITORS 1 X1
9-40-0241-A EA PCB FRONT AIR-SERIES - REV A 1
9-79-0240 EA ASSY PCB CONTROLLER AIR-SERIES 1
10.00 CON Alesis Consigned Materi
2-75-1101 EA IC CONVERTER A/D 24-BIT AL1101 SOP-16 2 U1-2
20.00 VF Vendor Furnished Materi
0-16-1001 EA RES 1.00K OHM 1/10W 1% 0805 6 R6-8 R11-12 R14
0-16-1002 EA RES 10.0K OHM 1/10W 1% 0805 4 R5 R9-10 R15
0-16-4751 EA RES 4.75K OHM 1/10W 1% 0805 4 R1-2 R18-19
0-16-4753 EA RES 475K OHM 1/10W 1% 0805 4 R3-4 R16-17
0-16-4759 EA RES 47.5 OHM 1/10W 1% 0805 1 R13
1-07-0333 EA CAP 330uF ELEC 6.3V 2.5x8x5mm 1 C16
alesis Confidential 4/15/2002 Page 2
CG_BOM_AIMS_2002-04-15.xls
1-55-0470 EA CAP 47pF NPO 0805 50V 4 C4-5 C12-13
1-55-0474 EA CAP 4700pF X7R 0805 50V 4 C1-2 C14-15
1-56-0104 EA CAP 0.1uF X7R 0805 10% 50V 6 C6-11
1-70-1471 EA CAP 4.7uF TANT-A SMD 20% 6.3V 1 C3
2-00-0773 EA DIODE OPTO-RCVR WIDE-ANGLE QSE773 4 D1-2 D4-5
2-51-4401 EA TRANS NPN 2N4401 40V 1A SOT-23 5 Q1-5
3-02-0037 EA LED INFRARED SIDE-VIEW FLAT VIEW-ANGLE=+/-90ø 1 D3
4-10-0016 EA CON 8-PIN FLEX-PCB 90ø 1mm 1 J1
4-70-0017 EA CABLE FLAT-FLEX 8-PIN 1mm X 76.2mm BT-BT 1 J1
7-07-0045 EA INSULATOR TUBING PTFE 16AWG X 11mm 2 (2)D3
9-15-0267 EA GROMET SENSOR CA 4 UNDER D1-2 D4-5
9-40-0240-B EA PCB CONTROLLER AIR-SERIES - REV B 1
9-79-0242 EA ASSY PCB REAR AIR-SERIES 1
10.00 CON Alesis Consigned Materi
2-75-1101 EA IC CONVERTER A/D 24-BIT AL1101 SOP-16 1 U5
2-75-1201 EA IC CONVERTER D/A 24-BIT AL1201 SOP-16 1 U4
2-77-0095 EA IC DSP 1KS/AL3102 SOIC-16 1 U2
20.00 VF Vendor Furnished Materi
0-16-1001 EA RES 1.00K OHM 1/10W 1% 0805 8 R10-11 R14 R17-20 R22
0-16-1002 EA RES 10.0K OHM 1/10W 1% 0805 2 R8-9
0-16-3320 EA RES 332 OHM 1/10W 1% 0805 2 R2 R21
0-16-4750 EA RES 475 OHM 1/10W 1% 0805 6 R1 R3 R12-13 R15-16
0-16-4751 EA RES 4.75K OHM 1/10W 1% 0805 2 R5-6
0-17-0223 EA RES CHIP ARRAY 4x22K OHM 1/16W 5% ISOLATED c-c=0.8mm 2 R4 R7
1-03-0474 EA CAP 0.47uF TANT-A SMD 10% 35V 2 C15-16
1-08-0104 EA CAP 1000uF ELEC 16V 5x10x16mm 2 C1 C2
1-08-0223 EA CAP 220uF ELEC 16V 3.5x8x12.5mm 3 C8 C23 C29
1-55-0471 EA CAP 470pF 5% NPO 0805 50V 2 C18-19
1-56-0102 EA CAP 1000pF NPO 0805 5% 100V 2 C4-5
1-56-0104 EA CAP 0.1uF X7R 0805 10% 50V 9 C3 C13-14 C17 C20 C24-26 C28
1-56-0151 EA CAP 150pF NPO 0805 4 C9-12
1-56-0682 EA CAP 6800pF X7R 0805 10% 50V 2 C6-7
1-70-1471 EA CAP 4.7uF TANT-A SMD 20% 6.3V 3 C21-22 C27
2-01-4003 EA DIODE POWER 1N4003 200V 1A 2 D1-2
2-61-2930 EA REG VOLTAGE LM2930 +5V TO-263 1 U3
2-71-0082 EA IC TL082 DUAL OPAMP SOP-8 1 U1
alesis Confidential 4/15/2002 Page 3
CG_BOM_AIMS_2002-04-15.xls
4-01-0006 EA JACK RCA 2-PIN DUAL FEMALE W/SHIELD-PLATE 2 J1-2
4-10-0016 EA CON 8-PIN FLEX-PCB 90ø 1mm 2 J4-5
4-16-0002 EA JACK 3.5mm BARREL (P3) 1 J3
4-70-0014 EA CABLE FLAT-FLEX 8-PIN 1mm 101.6mm BT-BT 1 J5
5-00-1002 EA SCREW 4-24 x 5/16" PPB PLAST 2 RCA JACKS TO REAR PANEL
9-01-0014-A EA PANEL REAR CA 1
9-40-0242-A EA PCB REAR AIR-SERIES - REV A 1
alesis Confidential 4/15/2002 Page 4
