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ALESIS
AI-4 (RI4)
Service Manual
P/N: 8-31-0120-B
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
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 © 2003 Alesis, LLC
Confidential
Alesis Service Manual
8-31-0120-B
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Summary of Contents for Alesis AI-4
- Page 1 ELECTRONIC FORM 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.
- Page 2 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.
- Page 3 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.
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Page 4: Safety Instructions
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 8-31-0120-B... -
Page 5: Adat Optical
Also known in the industry as “Lightpipe,” ADAT optical is the most popular Mechanical multichannel digital audio interface in the world. In addition to support by all of Alesis’ multitrack recorders, ADAT optical is widely supported by digital mixers, computer audio interfaces, third-party multitrack recorders, and even Size 1.75”H x 19.0”W x 5.8”D (45mm H x... -
Page 6: Disassembly Procedures
DISASSEMBLY PROCEDURES 1. REMOVAL OF TOP COVER / FRONT PANEL (Fig1) (A) TAKE OUT THE 3PC SCREWS FROM WHICH THE REAR PANEL. (B) TAKE OUT THE 3PC SCREWS FROM WHICH THE TOP PANEL. (C) TAKE OUT THE 3PC SCREWS FROM WHICH THE BOTTOM CHASSIS. - Page 7 DISASSEMBLY PROCEDURES 3.REMOVAL SUB-PUNEL (Fig.3) (A) REMOVE THE 4 PCS OF SCREWS FROM THE TOP PANEL. Fig.3 4.REMOVAL OF FRONT PANEL P.C.B (Fig.4) (A) REMOVE THE 7 PCS OF SCREWS FROM WHICH FRONT PANEL P.C.B (B) REMOVE THE POWER ON/OFF KNOB FROM WHICH FRONT PANEL P.C.B (C) REMOVE THE KNOB FROM WHICH FRONT PANEL P.C.B Fig.4...
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Page 8: Wiring Diagram
WIRING DIAGRAM (US/EU/UK/AUS NZ) -
Page 9: Packing Diagram
PACKING DIAGRAM (US/EU/UK/AUS NZ) -
Page 10: Explode Diagram
EXPLODE DIAGRAM (US/EU/UK/AUS NZ) SEQUENCIAL NO OF EXPLODE DIAGRAM WILL BE MARKED ON REF. COLUMM OF BOM LIST... -
Page 11: Setup Procedures
RI4 – Main Assembly Test Procedures Items Required for Tests (one each unless specified): • 2 – Alesis Masterlink Reference Unit (1 source, 1 destination) • 2 – Alesis ADAT Optical Cables • 2 – XLR Male to XLR Female Cables •... - Page 12 Source Masterlink: Verify “CD Player SONG 02” on VFD DUT RI4: Verify both 48.0K LEDs are lit and no Source Masterlink: Press SKIP >>| LEDs are flashing. Destination Masterlink: Verify that the DIGITAL LED is solidly lit (not flashing) and 48.0K LED is lit, Verify distortion-free audio in headphones Source Masterlink: Verify “CD Player SONG 02”...
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Page 13: You're Done
DUT AI4: Press AES/EBU TO ADAT OPTICAL CLOCK SOURCE SELECT and ADAT OPTICAL TO AES/EBU CLOCK SOURCE SELECT until both WCLK LEDs are lit. Function generator: set to generate a TTL level DUT RI4: Verify both 44.1K LEDs are flashing square wave (5V) at 33kHz Function generator: set to generate a TTL level DUT RI4: Verify both 96.0K LEDs are flashing... - Page 14 ALESIS AI-4 (RI4) SCHEMATIC FILES Confidential Alesis Service Manual 8-31-0120-B...
- Page 28 ALESIS AI-4 (RI4) HISTORY Confidential Alesis Service Manual 8-31-0120-B...
- Page 31 ALESIS AI-4 (RI4) Confidential Alesis Service Manual 8-31-0120-B...
- Page 32 BOX SHIPPING FREIGHT 7-51-0123 MANUAL REFERENCE MBR 7-90-0609 POLYBAG 0.007 7-90-0814 POLYBAG 0.007 7-93-1126 BAG FOAM 11x26 7-51-1219 SHEET "WELCOME TO ALESIS FAMILY" 5 x 8" 7-91-1002 GEL SILICA 5G PACKET 7-07-0056-A INSULATOR SHEET 9-15-0329-A KNOB 9-15-0330-A KNOB (POWER) 5-00-0306 SCREW 5-00-0058...
- Page 33 2-99-0021 DIODE BAV21 4-09-0010 CON DWR IEC 10A/250V 4-15-0204 4P HEADER SIL 5-05-1001 CLIP FUSE HOLDER 7-04-0012 CLIP FUSE (F1) 7-20-0064 INDUCTOR 100UH L1,4 7-20-0065 INDUCTOR 22UH 7-30-0025 CHOKE 10MH 7-40-0038 TRANSFORMER 9-07-0031 EARTHER PLATE (J2) 9-40-BB01 POWER PCB 9-79-0268 CONTROL PCB 3-02-0031 GREEN LED...
- Page 34 4-15-0204 HEADER SIL 4P 4-15-2601 26P CONNECTOR 5-00-1011 SCREW (U7,8,9) 5-02-6328 (U7,8,9) 7-01-0038 RESONATOR 12MHz 7-40-8865 TRANSFORMER T1~T4 9-40-0269 I/O PCB 9-56-0000 XLRTHED METAL PLATE (J2~J9) 9-61-0087...
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