Alesis AS4 Service Manual Download Page 2

Confidential 

Alesis Service Manual 

8-31-0132-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. 

Summary of Contents for AS4

Page 1: ...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 cop...

Page 2: ...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 perfo...

Page 3: ...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 OTHE...

Page 4: ...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...

Page 5: ...4 Turn on the audio source 5 Turn on the ProLinear 6 With the audio source material playing gradually turn up the Input Level control until the speaker is playing the audio material at a comfortable...

Page 6: ...Fig 1 A TAKE OUT THE 10 PCS SCREWS FROM THE REAR PANEL B TAKE OUT THE 3 PCS CONNECTOR FROM THE MAIN PCB Fig 1 2 REMOVAL OF WAVEGUIDE LED PCB Fig 2 A KTAE OUT THE 4 PCS SCREWS FROM THE WAVEGUIDE B TAK...

Page 7: ...WOOFER FROM THE FRONT BAFFLE AS4 Fig 3 1 A TAKE OUT THE 6 PCS SCREWS TO TAKE OUT THE TRIM RING AND THE WOOFER FROM THE FRONT BAFFLE AS5 Fig 3 2 Fig 3 1 Prolinear 720 Fig 3 2 Prolinear 820 4 REMOVAL OF...

Page 8: ...ROUNDING CABLE FROM THE REAR PANEL C TAKE OUT THE GROUNDING CABLE FROM THE AC SWITCH D TAKE OUT 1 PIN CABLE FROM AC SWITCH AND AC SOCKET E TAKE OUT 2 PIN CABLE FROM AC SWITCH AC SOCKET Fig 5 6 REMOVAL...

Page 9: ...SS Y Fig 7 A TAKE OUT 6 PCS SCREWS TO TAKE OUT THE MAIN PCB FROM THE REAR PANEL B TAKE OUT THE 4 PIN CABLE FROM THE POWER SUPPLY Fig 7 8 REMOVAL OF POWER SUPPLY Fig 8 A TAKE OUT 4 PCS SCREWS TO TAKE O...

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Page 11: ......

Page 12: ...AS4 EXPLODED VIEW PARTS LIST...

Page 13: ...AS5 EXPLODED VIEW PARTS LIST...

Page 14: ...Confidential Alesis Service Manual 8 31 0132 A ALESIS Prolinear 720 820 AS4 AS5 SCHEMATIC AND PCB FILES...

Page 15: ......

Page 16: ......

Page 17: ...Top Assembly Drawing...

Page 18: ...Top Layer Drawing...

Page 19: ...Bottom Assembly Drawing...

Page 20: ...Bottom Layer Drawing...

Page 21: ...Confidential Alesis Service Manual 8 31 0132 A ALESIS Prolinear 720 820 DSP AS1 AS3 ECN HISTORY...

Page 22: ...Confidential Alesis Service Manual 8 31 0132 A NOTE There were no ECNs related to this product when this service manual was created...

Page 23: ...Confidential Alesis Service Manual 8 31 0132 A ALESIS Prolinear 720 820 DSP AS1 AS3 BOM...

Page 24: ...SEPARATE WALL 1 1 7 90 0003 POLYBAG 0 01 1 7 91 1002 GEL SILICA 1 1 7 93 0001 SOFT SHEET 1 1 7 94 0007 PO BAG 1 1 9 03 0146 TWEETER PLATE 1 1 1 9 04 0028 CABINET 1 12 1 9 32 0020 TRIM RING 1 10 1 9 3...

Page 25: ...SMD 1 1 R16 3 0 16 1302 RESISTOR 13 0K 1 10W 1 4 R20 21 36 37 3 0 16 2001 RESISTOR 2K SMD 1 6 R41 42 63 64 66 67 3 0 16 3011 RESISTOR 3 01K SMD 1 2 R28 29 3 0 16 4321 RESISTOR4 32K SMD 1 4 R22 24 35 3...

Page 26: ...P SIL CONNECTOR 2 J2 3 3 4 15 0204 4P SIL CONNECTOR 1 J1 3 4 15 1002 CONNECTOR 2P SOCKET 1 J8 3 4 70 0027 5P CONNECTOR 260MM 1 J5 3 7 01 0024 CRYSTAL 12 288MHZ 1 X1 3 9 40 0297 PCB 1 3 9 61 0110 MCU 2...

Page 27: ...BLE HIGH FREQ TRANSDUCER 1 8 1 5 00 0410 SCREW 4 N2 1 5 00 1308 SCREW 2 N1 1 5 00 3519 SCREW 14 N3 1 5 00 4019 SCREW 6 N4 1 7 02 0031 TWEETER 1 5 1 7 02 0035 WOOFER 1 11 1 7 41 0005 CABLE POWER 1 1 7...

Page 28: ...0 44 47 3 0 16 1272 RESISTOR 12 7K SMD 1 1 R16 3 0 16 1302 RESISTOR 13 0K 1 10W 1 4 R20 21 36 37 3 0 16 2001 RESISTOR 2K SMD 1 6 R41 42 63 64 66 67 3 0 16 3011 RESISTOR 3 01K SMD 1 2 R28 29 3 0 16 432...

Page 29: ...22 J7 3 4 15 0200 2P SIL CONNECTOR 2 J2 3 3 4 15 0204 HEADER SIL 4P 3 96MM 1 J1 3 4 15 1002 CONNECTOR 2PSOCKET 1 J8 3 4 70 0027 5P CONNECTOR 260MM 1 J5 3 7 01 0024 CRYSTAL 12 288MHZ 1 X1 3 9 40 0297 P...

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