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Service Manual
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.
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
Confidential
Alesis
QX25
[LQPN]
v1.0
2014.01.17
ATTENTION!
Alesis Service Manual
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Summary of Contents for Alesis QX25
- Page 1 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.
- 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... - Page 5 BOM (Bill of Materials) wheel assy Part Number Part Name Specification Unit Qty. wheel assy QX 25 WHEEL ABS injection moulding PANTON 298010001 plastic 0.0129 wheel spring Piano steel Dia.0.8mm In Dia.10.5mm wheel bracket ABS injection moulding black N/ARD100874 298010001 plastic 0.0015 302990023...
- Page 6 6110100990 Encoder ROTARY VERTICAL “DELTA”E1140A3AV3FY10H3 6210100370 ALPS SKQSADA010 SIZE：6*6*4.3 按键开关 个 619010008 red WEJ3148D LED 3mm 6110200280 Slide potentiometer DELTA C4530N0AV1P103C50061 Single layer paper PCB 1.6mm SIZE:280 * 105mm 三个8字 ，共阳， Tact Switch 12V 50MA DIM:4.5*6.5 H=5mm TRVL=0.25mm Resistor DIP 100ohm(1/4w)+5%-5% SWITCH DIODE DIP 1N4148 DIP...
- Page 7 IC SMD 74HC138 8BIT SOP-16 PCB Dual layer FR4 1.6mm 158*54*1.6mm CAP CERAMIC SMD 0.1uf/50V +10% -10% 0603 X7R Ceramic Capacitor 220pf/50V ±5% 0603 Ceramic Capacitor 1uf/50V +20% -20% 1206 X7R Resistor SMD 1K ohm +5%-5% 0603 Resistor SMD 220K ohm +5%-5% 0805 DIP RESISTOR 10 ohm(1/2w) +5%-5% CAP ELECT DIP...
- Page 8 901990032 Hot-Melt Tape 11.2±2*300 yellow clarity 0.0007 101080047 keyboard PCB assy AI 25 FST 503030017 Single layer fire barrier board 1.6mm 25keybed PCB VO3 carbon print+blue glue 608050001 DIP switch diode IN4148 DIP TYPE 628990010 AFTER TOUCH 370*11mm 629010022 conductive adhesive 13 DITS blue no print 100% long life rubber hardness 40 699000005 adhesive tape AXIOM...
- Page 9 298050003 color seed M4705B 0.0012 205010075 white key G DL-1332 ABS white N/A 298010001 plastic 0.018 298050003 color seed M4705B 0.0012 299010024 Pressure bar code DL-1227 ABS injection moulding black N/A 298010001 plastic 0.001 301110004 screw BB 2.3*8BB 301110024 screw BB 3*8BB 301050001 screw PMTT...
- Page 10 301040024 screw PM 3*5PM 301130007 screw BM 3*8BM Display PC PC clarity T=1mm black frame white word 301070006 screw PWB 3*8PWB(W DIA11.5MM) black 301110024 screw BB 3*8BB 630010019 rubber feet φ16mm thick 3.2mm stickiness(round) 628071033 white flat cable with female plug 2PIN 2PIN/2.0cathode plugL=180mm 4PIN jack 2468 #26 301110029 screw BB...
- Page 11 PB0-7 keyboard in & led888 74HC138 MIDIOUT USB_VCC RC1117-3.3 D+3.3V A+3.3V DCJACK DCIN DC5V RC1117 LED1 SK2310 Vout 20UH 1A 10uF 0.1uF 0.1uF Title POWER BZX84-5A6 Size Number Revision 0R(D) GND1 AGND Date: 2011-11-23 Sheet of File: E:\DDB\QX25\V1.3\QX25-CKB-V1.3.Sch Drawn By:...
- Page 12 SW SPST TO J16 KEY_OUT1 1N4148 1N4148 100P 100P SW SPST 1N4148 1N4148 KEY_OUT0 1N4148 KEY_OUT4 PB8-15 button encoder in & ledSEG CON14 KEY_OUT0 KEY_OUT1 KEY_OUT2 KEY_OUT3 KEY_OUT4 Title Size Number Revision Date: 2011-11-23 Sheet of File: E:\DDB\QX25\V1.4\QX25-KZB-V1.4.Sch Drawn By:...