Alesis ION (Q01) Service Manual

ALESIS

r

ION (Q01)

Service Manual

P/N: 8-31-0125-A

ATTENTION!

THIS DOCUMENT CONTAINS SENSITIVE

PROPRIETARY INFORMATION. ALL

RECIPIENTS MUST HAVE A CURRENT NON-

DISCLOSURE AGREEMENT ON FILE WITH

ALESIS, 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 pape
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 [e-mail].

Copyright © 2002, 2003 Alesis, LLC

Confidential Alesis Service Manual 8-31-0125-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.

Confidential Alesis Service Manual 8-31-0125-A

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.

Confidential Alesis Service Manual 8-31-0125-A

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
either in the operating instructions or in markings on the product.

2. Power Cord Protection
step on the cords and such that nothing will be placed on or against them.

3. Periods of Non-use
AC power supply cord should be unplugged from the AC outlet.

4. Foreign Objects and Liquids
openings of the product.

5. Water or Moisture

6. Heat

7. Ventilation

8. Mounting

. Do not place the product near heat sources such as stoves, heat registers, radiators or

other heat producing equipment.

ventilation. Improperly ventilating the product may cause overheating, which may damage the
product.

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.

. The product should only be connected to a power supply which is described

. AC power supply cords should be placed such that no one is likely to

. If the product is not used for any significant period of time, the product's

. Take care not to allow liquids to spill or objects to fall into any

. The product should not be used near any water or in moisture.

. When installing the product, make sure that the product has adequate

. The product should only be used with a rack which the manufacturer

9. Cleaning

10. Service
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
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

e. The enclosure of the product has been damaged.

. The product should only be cleaned as the manufacturer recommends.

. The user should only attempt the limited service or upkeep specifically described in

. Qualified service personnel should service the unit in certain

normally, or

Confidential Alesis Service Manual 8-31-0125-A

Specifications

Sound Engine

Sound Generation: Alesis proprietary DSP Analog

Polyphonic Voices: 8, each with 3 oscillators, 2 multi-mode

Program Memory: 512 Preset Programs, 32 Multi-timbral

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: 10k

Audio Output

Output Connectors: 4 Impedance-Balanced 1/4” TRS

Maximum Output Level: +18dBu (6.17 VRMS) = -0dBFS

Output Impedance: 1k

Audio Performance

Signal To Noise Ratio: >95 dB A-weighted, Ext In to

THD+N: < 0.005%, External In to

Main or Aux Out

Frequency Response: 20-20kHz,External In to

Power Consumption: 12 Watts max (100-240VAC/50-

Modeling

filters, 3 envelope generators, 2 LFOs,
programmable effects send and
modulation matrix.

Setups, all user-rewritable

Ω

jacks, ¼” TRS Headphone Jack

Ω

Main or Aux Out

Main or Aux Out

60Hz)

Physical

Keyboard: 49 keys (velocity, release velocity

Real-Time Controllers: 30 360-degree Parameter Knobs, 2

Pedal Jacks: Assignable Exp pedal jack, Sustain

MIDI Connections: MIDI In, MIDI Out, MIDI Thru
Audio Outputs: Main L/R , Aux L/R, Headphone

Dimensions (WxHxD): 33.0” x 3.75” x 13.0” / 838.20 x 95.25

Weight: 20 lbs / 9 kg

sensitive)

Assignable Modulation Wheels,
Assignable Pitch Wheel,

pedal jack

(1/4” TRS)

x 330.20mm

DISASSEMBLY PROCEDURES

1. REMOVAL OF TOP COVER / FRONT BOTTOM PANEL (Fig.1)

(A) TAKE OUT THE 5 PCS SCREWS FROM WHICH

THE REAR PANEL.

(B) TAKE OUT THE 12 PCS SCREWS FROM WHICH

THE BOTTOM PANEL

2. REMOVAL OF KEYBOARD (Fig.2)

(A) TAKE OUT THE 10PCS SCREWS FROM WHICH

THE BOTTOM CHASSIS.

Fig.1

Fig.2

3. REMOVAL OF MAIN P.C.B AND ASSY PCB PITCH/MOD WHEEL LED (Fig.3)

(A) REMOVE 6 PCS OF CABLE CONNECTOR FROM MAIN PCB
(B) REMOVE THE 9 PCS NUT OF 1/4” CONNECTORS FROM REAR PANEL
(C) REMOVE THE 5 PCS SCREW FROM WHICH MAIN PCB
(D) REMOVE 1 PC OF CABLE CONNECTOR FROM PCB PITCH/MOD WHEEL LED
(E) REMOVE 4 PCS OF SCREW FROM PCB PITCH/MOD WHEEL LED

Fig.3

4.REMOVAL ASSY PCB POWER SUPPLY BB01 (Fig.4)

(A) REMOVE 1 PC OF CABLE CONNECTOR FROM PCB TRANSFORMER
(B) REMOVE THE 2 PCS SCREWS FROM PCB TRANSFORMER
(C) REMOVE THE 2 PCS SCREWS FROM REAR PANEL

Fig.4

5.REMOVAL ASSY PCB TOP PANEL AND ASSY PITCH AND MOD WHEELS (Fig.5)

(A) REMOVE THE 9 PCS OF SCREWS FROM ASSY PCB TOP PANEL LEFT
(B) REMOVE THE 7 PCS SCREW FROM ASSY PCB TOP PANEL RIGHT
(C) REMOVE THE 6PCS SCREW FROM ASSY PITCH AND MOD WHEELS
(D) REMOVE THE 4PCS SCREW FROM ASSY LCD WITH CABLE

Fig.5

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

ALESIS

ION (Q01)

BOM

Confidential Alesis Service Manual 8-31-0125-A

Ion BOM

LEVEL

1 BAGL-40A CABLE CLIP 1 48

1 5-10-1004 TIE WRAP 4" LOCKING WHITE 3 52

1 LAP67YAH255 STICKER 5

1 5-03-0035 STANDOFF M3 M-F 45.2mm BRASS 3 22

1 9-01-0077-A SUBPANEL ENDCAP LEFT Q01 1 4

1 9-01-0076-A SUBPANEL ENDCAP RIGHT Q01 1 35

1 PQ01ALE01 PACKING ASSEMBLY 1

2 7-80-0362-A SPACER CARDBOARD [CB310N005] Q01 1

2 7-90-0609 POLYBAG 0.007

2 7-93-1619 BAG FOAM 420 X 500mm 2

2 7-51-0124-A REF MANUAL, Q01 1

2 7-51-1219 SHEET WELCOME-TO-ALESIS-FAMILY 5 x 8" 1

2 7-80-0323-A BOX SHIPPING Q01 1

2 7-80-0324-A BOX GIFT Q01 1

2 7-80-0325-A SUPPORT CARDBOARD Q01 2

2 7-81-0176-A ENDCAP FOAM LEFT Q01 1

2 7-81-0177-A ENDCAP FOAM RIGHT Q01 1

2 7-81-0180-A SUPPORT CENTER FOAM Q01 1

2 7-91-1002 GEL SILICA 5G PACKET 1

2 7-94-1015 POLYBAG 10 * 15 - 4 MIL 0.1

2 7-94-1845 POLYBAG 18" X 45" 4MIL 0.1

1 PT0104432 WIRING SEAT 1 51

1 9-15-0305-A ENDCAP CHASSIS LEFT Q01 2 3

1 7-07-0060-A INSULATOR POWER SUPPLY FORMEX W/ ADHESIVE 102 X 72 mm 1 33

1 7-07-0062 INSULATOR SHEET PLASTIC 1 60

1 9-15-0310-A CAP ROUND SWITCH CLEAR Q01 25 11

1 9-15-0311-A CAP ROUND SWITCH BLACK Q01 3 24

1 9-15-0312-A CAP SQUARE SWITCH CLEAR Q01 2 10

1 9-15-0313-A CAP SQUARE SWITCH CLEAR ARROW UP Q01 3 15

1 9-15-0352-A CAP SQUARE SWITCH CLEAR ARROW DOWN Q01 3 16

1 9-15-0351-A CAP SQUARE SWITCH CLEAR ARROW LEFT Q01 1 13

1 9-15-0350-A CAP SQUARE SWITCH CLEAR ARROW RIGHT Q01 1 14

1 9-15-0371-A CAP SQUARE SWITCH BLACK ARROW LEFT FACING Q01 1 26

1 9-15-0370-A CAP SQUARE SWITCH BLACK ARROW RIGHT FACING Q01 1 27

1 9-15-0315-A CAP RECTANGULAR SWITCH CLEAR Q01 18 9

1 9-15-0316-A CAP RECTANGULAR SWITCH BLACK Q01 8 12

1 9-15-0361-A CAP RECTANGULAR SWITCH CLEAR CENTER Q01 4 37

1 5-03-0034 STANDOFF 10 X 10 X 8.8 mm NEOPRENE RUBBER 2 47

1 SC0306PBBI SCREW 6 6

1 SC0306RICI SCREW 6 46

1 SC0406RIBI SCREW 4 42

1 SC3506AIBI SCREW 14 20

1 SC3514PBBI SCREW 10 21

1 4-19-0036-A CABLE SIL 4-PIN CONNECTOR F-F 1 56

1 4-19-0039-A CABLE SIL 6-PIN 2mm F-F 1 57

1 4-19-0048-A CABLE SIL 6-PIN 2mm M - STAKED 1 55

1 4-70-0021-A CABLE DIL RIBBON 16-PIN F-M 2

1 5-00-0020 SCREW 3 53

1 5-00-0106 SCREW 41 5

1 5-00-1020 SCREW 2 40

1 7-10-0116 ASSY KEYBED 49-KEY FATAR TP/7BA 1 29

1 7-41-0005 CABLE POWER UL/CSA (SJT) 1

1 7-50-0179 STICKER BARCODE S/N Q01 1 44

1 7-52-0040-B STICKER ETL/FCC/CE/C-Tick & CAUTION - REV B 1 59

1 7-53-0100 STICKER SYMBOL CAUTION (WHITE-ON-BLACK) 1 45

1 9-01-0056-A TOP PANEL Q01 1 7

1 9-01-0057-A CHASSIS BOTTOM Q01 1 41

1 9-10-0058-A BEZEL LCD CLEAR ACRYLIC Q01 - REV A 1 25

P/N DESCRIPTION QTY REF

1 9-15-0076 FOOT ROUND LARGE 4 19

1 9-15-0206 CLIP 150

1 9-15-0302-A KNOB TEXTURED TRANSLUCENT Q01 - REV A 1 34

1 9-15-0303-A KNOB TEXTURED BLACK Q01 - REV A 30 1

1 9-15-0304-A KNOB MAIN VOLUME W/INDICATOR Q01 - REV A 1 2

1 9-15-0307-A ENDCAP KEYBED LEFT Q01 - REV A 1 23

1 9-15-0308-A ENDCAP KEYBED RIGHT Q01 - REV A 1 36

1 9-15-0309-A BRACKET MOUNTING LCD FRONTIGHT 1 49

1 9-44-0006 DISPLAY LCD 160x160 HANTRONIX Y-G LED BACKLIGHT 1 28

1 9-79-BB01 ASSY PCB POWER SUPPLY BB01 1 32

2 7-53-0231-A STICKER FUSE RATING T1AL 250V 1 (C3)

2 9-07-0031 SHIELD EMI/IEC BB 1 (J2)

2 5-04-0062-A INSULATOR 19mm x 20mm PLASTIC 1 (C11)

2 TE617920201 2P AC CONNECTOR 1 (J3)

2 0-00-0221 RES 220 OHM 1/8W 5% 1 R1

2 0-00-0689 RES 6.8 OHM 1/8W 5% 1 R2

2 0-01-2213 RES 221K OHM 1/8W 1% 2 R3,4

2 0-05-1104 RES 100K OHM 1W 5% 1 R5

2 1-02-0104 CAP 0.1uF CERDISC 10% .30"DIA. 1 C1

2 1-02-5103 CAP 0.01uF CERDISC 20% 500V 5x5x2mm 1 C6

2 1-08-0474 CAP 47uF ELEC 16V 2x5x11mm 1 C5

2 1-08-1000 CAP 1000uF ELEC 20% 16V 5x10.2x20mm 2 C7,9

2 1-09-0221 CAP 220uF ELEC 25V 3.5x8x12.5mm 4 C2,4,10,12

2 1-13-4472 CAP 47uF ELEC 400V 7.5x18x25mm 1 C11

2 1-14-0104 CAP 0.1uF X2-CAP +/-20% 250VAC 15x17.5x5x10.5mm 2 C3,8

2 1-15-0103 CAP 0.01uF Y-CAP 250 VAC 15.2X18.5X5.2X10.5mm 2 C14,15

2 1-15-2102 CAP 1000pF Y-CAP 250VAC 5x6.5x4.5mm 1 C13

2 2-01-0120 DIODE POWER ULTRA-FAST MUR120 1A 200V 2 D2,6

2 2-01-5822 DIODE SCHOTTKY 1N5822 3A 40V 1 D3

2 2-02-0600 DIODE POWER ULTRAFAST MUR160 600V 1A 1 D4

2 2-02-4751 DIODE ZENER 1N4751 30V 1W DO-41 1 D5

2 2-03-0105 RECTIFIER BRIDGE DB105 1A 600V 1 D7

2 2-05-0223 TRANS OFF-LINE PWM SWITCH 50W TO-223 1 Q2

2 2-24-8104 IC OPTO-ISOLATOR TCDT1124 6-PIN 1 Q1

2 2-99-0021 DIODE BAV21 1 D1

2 4-09-0010 CON PWR IEC 10A 250V PCB-MOUNT (TOP GND LUG) 1 J2

2 4-15-0204 HEADER SIL 4-PIN 1 J1

2 5-05-1001 CLIP FUSE HOLDER (5 x 12mm) 2 F1

2 7-04-0012 FUSE 2A 250V 5X20mm F UL-LISTED 1 (F1)

2 7-20-0064 INDUCTOR 100uH 0.58A 5x8.5x11.5mm 20% 1 L1,4

2 7-20-0065 INDUCTOR 22uH 1.29A 5x8.5x11.5mm 20% 1 L2

2 7-30-0025 CHOKE COMMON MODE 10mH 3.5 OHMS 1 L3

2 7-40-0038 TRANSFORMER HI-FREQ SWITCHING FLYBACK EI25-CORE BB 1 T1

2 9-40-BB01-E PCB POWER SUPPLY BB01- REV E 1

1 9-79-0272-C ASSY PCB MAIN Q01 Rev C 1 18

2 CS103K5005X7R CERAMIC 0.01UF 74

2 CS104K2505X7R CERAMIC 0.1UF 17

C2~14,18,21,73~92,94~109,114~116,118,12
1,122,127 ,128,130~141,143,144,150

C1,24,29~31,35,40,58,70,71,93,110,111,112,
123~125

2 5-04-0061-A INSULATOR 4.1mm x 18mm PLASTIC 1 (J3)

2 RS10118J05 RESISTOR 100O (SMD) 6 R96,97,100,101,105,106

2 RS10218J05 RESISTOR 1K (SMD) 27

2 RS10318J05 RESISTOR 10K (SMD) 18

R10,11,15,27,34,39,40~42,44~46,50,51,63,6
5,74,76,77,86,108,113,114,120~122,140

R4,7~9,13,14,18,31~33,52,90,91,104,112,13
1,133,139

2 RS10418J05 RESISTOR 100K (SMD) 13 R12,16,17,23~26,28~30,43,61,62

2 RS18218J05 RESISTOR 1.8K (SMD) 4 R19,20,36,37

2 RS20318J05 RESISTOR 20K (SMD) 8 R53,54,58,59,70,78,79,84