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Confidential  

Alesis 

Service 

Manual 

 

 

Alesis 

VX49 

[LQVH]

 

Service Manual  

 

v1.0 

 

 

 

 

 

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 Alesis 

ATTENTION!

This document contains sensitive proprietary information. 

All recipients must have a current non-disclosure agreement 
on file with Alesis. 

Do not make illegal copies of this document. 

Summary of Contents for VX 49

Page 1: ...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 thi...

Page 2: ...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...

Page 3: ...E 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...

Page 4: ...s 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...

Page 5: ...1 Exploded drawing 2 Schematics Circuit diagram 3 Level 1 BOM Complete BOM service manual LQVH...

Page 6: ......

Page 7: ...OGND4 PIGNDP101 COGND P1 PIGNDP201 COGND P2 PIGNDP301 COGND P3 PIGNDP401 COGND P4 PIJ101 PIJ102 PIJ103 PIJ104 PIJ105 PIJ106 PIJ107 PIJ108 PIJ109 PIJ1010 COJ1 PIJ201 PIJ202 PIJ203 PIJ204 PIJ205 PIJ206...

Page 8: ...02 PIJ803 PIJ804 PIJ805 PIJ806 PIJ807 PIJ808 PIJ809 PIJ8010 PIJ8011 PIJ8012 PIJ8013 PIJ8014 PIJ8015 PIJ8016 PIJ8017 PIJ8018 PIJ8019 PIJ8020 PIJ8021 PIJ8022 PIJ8023 PIJ8024 PIJ8025 PIJ8026 PIJ8027 PIJ8...

Page 9: ...J7003 PIJ7004 PIJ7005 PIJ7006 COJ70 PIJ7101 PIJ7102 PIJ7103 PIJ7104 PIJ7105 PIJ7106 PIJ7107 PIJ7108 PIJ7109 PIJ71010 COJ71 PIJ7201 PIJ7202 PIJ7203 PIJ7204 COJ72 PIJ7301 PIJ7302 PIJ7303 PIJ7304 PIJ7305...

Page 10: ...10201 PIR10202 COR102 PIR10301 PIR10302 COR103 PIR10401 PIR10402 COR104 PIR10501 PIR10502 COR105 PIR10601 PIR10602 COR106 PIR10701 PIR10702 COR107 PIR10801 PIR10802 COR108 PIR10901 PIR10902 COR109 PIR...

Page 11: ...IR19701 PIR19702 COR197 PIR50001 PIR50002 COR500 PIR50101 PIR50102 COR501 PIR50201 PIR50202 COR502 PIR50301 PIR50302 COR503 PIR50401 PIR50402 COR504 PIR50501 PIR50502 COR505 PIR50601 PIR50602 COR506 P...

Page 12: ...02 COR136 PIR13701 PIR13702 COR137 PIR13801 PIR13802 COR138 PIR13901 PIR13902 COR139 PIR14001 PIR14002 COR140 PIR14101 PIR14102 COR141 PIR14201 PIR14202 COR142 PIR14301 PIR14302 COR143 PIR14401 PIR144...

Page 13: ...PIC22101 PIC22102 COC221 PIGND101 COGND1 PIGND201 COGND2 PIGND301 COGND3 PIGND401 COGND4 PIGND0POT101 COGND0POT1 PIGND0POT201 COGND0POT2 PIGND0POT301 COGND0POT3 PIGND0POT401 COGND0POT4 PIJ20101 PIJ201...

Page 14: ...5 PIR20601 PIR20602 COR206 PIR20701 PIR20702 COR207 PIR20801 PIR20802 COR208 PIR20901 PIR20902 COR209 PIR21001 PIR21002 COR210 PIR21101 PIR21102 COR211 PIR21201 PIR21202 COR212 PIR21301 PIR21302 COR21...

Page 15: ...PIR26101 PIR26102 COR261 PIR26201 PIR26202 COR262 PIR26301 PIR26302 COR263 PIRP20001 PIRP20002 PIRP20003 PIRP20004 PIRP20005 PIRP20006PIRP20007PIRP20008 CORP200 PIRP20101PIRP20102PIRP20103PIRP20104 P...

Page 16: ...016 PIJ300017 PIJ300018 PIJ300019 PIJ300020 COJ300 PIJ30101 PIJ30102 PIJ30103 PIJ30104 PIJ30105 PIJ30106 PIJ30107 PIJ30108 PIJ30109 PIJ301010 PIJ301011 PIJ301012 PIJ301013 PIJ301014 PIJ301015 PIJ30101...

Page 17: ...PIRP30704 PIRP30705PIRP30706PIRP30707PIRP30708CORP307 PIS30001 PIS30002 COS300 PIS30101 PIS30102 COS301 PIS30201 PIS30202 COS302 PIS30301 PIS30302 COS303 PIS30401 PIS30402 COS304 PIS30501 PIS30502 COS...

Page 18: ...ff C424 No Stuff GND_POT PI03V30POT01 CO03V30POT COBOLT1 COBOLT2 COBOLT3 COBOLT4 COBOLT5 COBOLT6 PIC41801 PIC41802 COC418 PIC41901 PIC41902 COC419 PIC42001 PIC42002 COC420 PIC42101 PIC42102 COC421 PIC...

Page 19: ...ID41402 PID41403 COD414 PID41501 PID41502 PID41503 COD415 PIP40001 PIP40002 PIP40003 PIP40004 PIP40005 PIP40006 COP400 PIP40101 PIP40102 PIP40103 PIP40104 PIP40105 PIP40106 COP401 PIP40201 PIP40202 PI...

Page 20: ...PID4402 COD44 PID4501 PID4502 COD45 PID4601 PID4602 COD46 PID4701 PID4702 COD47 PID4801 PID4802 COD48 PIJ101 PIJ102 PIJ103 PIJ104 PIJ105 PIJ106 PIJ107 PIJ108 PIJ109 PIJ1010 PIJ1011 PIJ1012 PIJ1013 PI...

Page 21: ...01 PID4602 COD46 PID4701 PID4702 COD47 PID4801 PID4802 COD48 PID4901 PID4902 COD49 PID5001 PID5002 COD50 PIJ201 PIJ202 PIJ203 PIJ204 PIJ205 PIJ206 PIJ207 PIJ208 PIJ209 PIJ2010 PIJ2011 PIJ2012 PIJ2013...

Page 22: ...ROHS 1 061233000 CABLE AFTERTOUCH L 858mm FOR 49KEYS YINQUAN YQ 0488 ROHS 1 105 LQVH 66 PCB ASSY 24KEYBOARD FOR LQVH ROHS 1 105 LQVH 67 PCB ASSY 25KEYBOARD FOR LQVH ROHS 1 080616100 KNOB ASSY FOR LQV...

Page 23: ...00 1 054496200 LEFT EPE REV 0 1 FOR LQV2 ROHS EA 1 00 1 054496300 RIGHT EPE REV 0 1 FOR LQV2 ROHS EA 1 00 1 054498100 MIDDLE EPE REV 0 1 FOR LQV4 ROHS EA 1 00 1 061219001 CABLE USB BLACK L 1500mm LIA...

Page 24: ...mm SOUNDWELL RD1610NOA0X WA2 014 ROHS 2 080252100A PITCH WHEEL ASSY FOR LQV ROHS EA 1 00 3 021232700 SPRING CAP RUBBER REV A ROHS EA 2 00 3 021252700A BASE PLASTIC BLACK ABS FOR LQV ROHS EA 1 00 3 022...

Page 25: ...D LQV2 ROHS EA 4 00 3 023496001 PCB FR4 1 2mm 1L 1OZ 25 7 7mm REV 0 05 FOR LEDBOARD ROHS EA 1 00 3 411390023 LED SMD 0603 BLUE SUPER BRIGHT JASIONAL JX SP190UBC ROHS EA 1 00 D40 ALT PN 411390023B LED...

Page 26: ...511275447 INDUCTOR SMD 4 7UH 20 5 8 4 5 SAYES CD54 4R7M ROHS EA 1 00 L2 4 711106801 CONNECTOR FPC SMD 20PIN P 0 5mm SHENGPIN 0 5S 1X 20PWB ROHS EA 3 00 J2 5 6 4 711646801 CONNECTOR FPC SMD 10PIN P 0...

Page 27: ...2 00 C134 135 ALT PN 211148226A CAP SMD 1206 CER 22UF 10 25V X5R SAMSUNG CL31A226KAHNNNE ROHS 4 212148225C CAP SMD 0805 CER 2 2UF 10 25V X5R SAMSUNG CL21A225KAFNNNE ROHS EA 4 00 C70 102 104 4 2131021...

Page 28: ...N D503 ROHS EA 2 00 J100 101 3 722595000A CONNECTOR 6PIN P 2 0mm SINGLE STRAIGH ZIRUI ZR PH 6A 2 0mm ROHS EA 1 00 J70 3 722609901A JACK DC POWER 2 0 HAOYU DC 005 2 0 ROHS EA 1 00 CN100 3 722805800 PHO...

Page 29: ...30330 RES SMD 0603 1 10W 5 33R ROHS EA 22 00 R311 319 321 333 4 134131002 RES NETWORK SMD 0603 4 1 16W 5 10K FENG HUA ROHS EA 8 00 RP300 307 4 212148225C CAP SMD 0805 CER 2 2UF 10 25V X5R SAMSUNG CL21...

Page 30: ...T PN 152225252A POT STEREO 2 5KB DUAL WIPER 360DEG TURN VERT 15mm SHAFT A PLUS R11BB2VO 5B15D 0B2 5K 0004 S2 ROHS 2 542000004 MAGNETIC POLE THREE CORE TC5B FS38 5 4 12 0 8 ROHS EA 1 00 2 542001631 MAG...

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