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Service Manual
MODEL:AMX-140MKII/FX MKII
www.altoproaudio.com
Version: 2.0
Revised on Dec,2009

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Summary of Contents for LTO AMX-140MKII

  • Page 1 Service Manual MODEL:AMX-140MKII/FX MKII www.altoproaudio.com Version: 2.0 Revised on Dec,2009...
  • Page 2: Table Of Contents

    CONTENTS 1. Introduction........................1 2. Specification........................2 3. Block Diagram......................3 4. Schematic Diagram....................4 5. PCB Layout......................11 6. Wiring Diagram......................15 7. Exploded Views & Mechanical Parts List..............16 8. BOM List........................19...
  • Page 3: Introduction

    PA installations. The AMX-140MKII/140FX MKII mixing console is packed with some key features that can not be found in other consoles of its size: 4...
  • Page 4: Specification

    2. Specification Microphone input electronically balanced, discrete input configuration Frequency response 10Hz to 55kHz, +/-3dB Distortion (THD & N) 0.005% at +4dBu, 1kHz Gain range 0dB to 44dB (MIC) Mono input channels SNR (Signal to Noise Ratio) 115dB Line input electronically balanced Frequency response 10Hz to 55kHz, +/- 3dB...
  • Page 5: Block Diagram

    3. Block Diagram --- 3 ---...
  • Page 6: Schematic Diagram

    4. Schematic Diagram --- 4 ---...
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  • Page 13: Pcb Layout

    5. PCB Layout PCB : 313123/2 Top Overlay --- 11 ---...
  • Page 14 AMX-140MKII/140FX MKII-BOTTOM LAYER --- 12 ---...
  • Page 15 AMX-140MKII/140FX MKII-TOP LAYER --- 13 ---...
  • Page 16 --- 14 ---...
  • Page 17: Wiring Diagram

    6. Wiring Diagram --- 15 ---...
  • Page 18: Exploded Views & Mechanical Parts List

    7. Exploded Views & Mechanical Parts List MODEL No:AMX-140FX MKII --- 16 ---...
  • Page 19 MODEL No:AMX-140 MKII --- 17 ---...
  • Page 20 Mechanical Parts List AMX-140 MKII Part No Description Specification MA04539 panel AMX-140FX ALTO MB03078 rear board AMX-140 HI00026 power switch RA12KKATOF 2P HI00171 power switch R612KKAT0F1 NI01863 φ5.5*W10*7.5 NI02083 knob φ10.5*18mm NI02835 handle 269*33*26mm AMX-140 black NI02082 knob φ10.5*18mm NI02817 knob φ10.5*18mm 10 NI02081...
  • Page 21: Bom List

    8. BOM List AMX-140FX MKII Layer Part No Description Specification Insert location Remark PF03476 MIXING CONSOLE AMX-140FX_ALTO_230V ├0001 TG00097 adaptor 230V/50~60Hz_AC18V/1000mA_EI-48 ├0002 NI00826 knob φ12*18mm double color LEVEL ├0003 NI00252 sleeve φ4*20mm ├0004 NI00498 self-adhere foot cushion 12.7*7*6mm(SF-005) ├0005 NI00218 cable tie ALT-102SB ├0006 NF01658 instruction...
  • Page 22 Layer Part No Description Specification Insert location Remark │   ├0005 RD00061 SMD fixed resistor 1/10W 10Ω ±5% 0603 │   ├0006 RD00068 SMD fixed resistor 1/10W 100Ω ±5% 0603 R12,R14,R7,R8,R34,R17,R13,R33 │   ├0007 RD00073 SMD fixed resistor 1/10W 220Ω ±5% 0603 │   ├0008 RD00085 SMD fixed resistor 1/10W 1.5KΩ...
  • Page 23 Layer Part No Description Specification Insert location Remark VR2,VR3,VR4,VR10,VR11,VR12,VR18,VR19,VR20,VR26, │ ├0033 RC00672 potentiometer-RS B50KΩ XV09213YNPV30F-1B50K C.C VR27,VR28 VR5,VR6,VR7,VR8,VR13,VR14,VR15,VR16,VR21,VR22,V │ ├0034 RC00703 potentiometer-RS W50KΩ XV09213YNPV30F-4BP50K CC R23,VR24,VR29,VR30,VR31,VR32,VR37,VR38,VR44,VR4 5,VR52 │ ├0035 RC00669 potentiometer-RS B50KΩ XV012313YGPV30F-3B50K C.C VR34,VR35,VR36,VR41,VR42,VR43 │ ├0036 RC00670 potentiometer-RS W50KΩ XV012313YGPV30F-4B50K C.C VR39,VR40,VR46,VR47,VR48,VR49,VR50,VR53 │ ├0037 HK00832 PC board P-FX-DSP-DIP │ │ ├0001...
  • Page 24 Layer Part No Description Specification Insert location Remark │ │ ├0007 CB00255 electrolytic capacitor 1000uF/10V φ8*11mm 5mm C23,C26,C50,C51,C99 │ │ ├0008 CB00414 electrolytic capacitor-RS 1000uF/16V 105℃ φ10*13mm C400 │ │ ├0009 RA01258 fixed resistor 1/4W 10Ω R443 │ │ ├0010 RA01259 fixed resistor 1/4W 47Ω R373,R374 │ │ ├0011 RA01260 fixed resistor 1/4W 120Ω...
  • Page 25 Layer Part No Description Specification Insert location Remark │ │   ├0038 RD00110 SMD fixed resistor 1/10W 43KΩ ±5% 0603 R274,R275 │ │   ├0039 RD00111 SMD fixed resistor 1/10W 47KΩ ±5% 0603 R228,R229,R230,R231,R232,R233,R234,R235 │ │   ├0040 RD00354 SMD fixed resistor 1/10W 51KΩ ±5% 0603 R391,R392,R393,R394 │ │   ├0041 RD00112 SMD fixed resistor 1/10W 56KΩ...
  • Page 26 AMX-140MKII Layer Part No Description Specification Insert location Remark PF03477 MIXING CONSOLE AMX-140_ALTO_230V TG00097 adaptor 230V/50~60Hz_AC18V/1000mA_EI-48 ├0001 NI00826 knob φ12*18mm double color LEVEL ├0002 NI00252 sleeve φ4*20mm ├0003 NI00498 self-adhere foot cushion 12.7*7*6mm(SF-005) ├0004 NI00218 cable tie ALT-102SB ├0005 NF01658 instruction AMX-140 140FX ALTO_V1.4...
  • Page 27 Layer Part No Description Specification Insert location Remark 60 │ ├0018 HC00403 RCA jack SCP6873NS3232T2 4P 61 │ ├0019 MI01905 heat sink-RS-ACT AMX-140 2.0t*195.5*29*2mm_V1.1 62 │ ├0020 NI02249 plastic washer TW-1(TO-220) 63 │ ├0021 NC00167 mica-RS 13*18(φ3.6)TO-220 64 │ ├0022 MG00166 screw M3*10 65 │ ├0023 MF00037 washer φ3.2*φ5*0.8t 66 │ ├0024...
  • Page 28 Layer Part No Description Specification Insert location Remark 105 │ │   ├0014 RD00347 SMD fixed resistor 1/10W 510Ω ±5% 0603 R361 106 │ │   ├0015 RD00348 SMD fixed resistor 1/10W 620Ω ±5% 0603 R362 107 │ │   ├0016 RD00082 SMD fixed resistor 1/10W 820Ω ±5% 0603 R252 R196,R197,R198,R199,R200,R201,R202,R203,R2 108 │ │   ├0017 RD00349 SMD fixed resistor 1/10W...
  • Page 29 Layer Part No Description Specification Insert location Remark C414,C415,C27,C28,C29,C30,C31,C32,C33,C34, C43,C46,C47,C52,C53,C54,C55,C57,C58,C59,C6 0,C66,C67,C68,C69,C110,C179,C180,C181,C182, SMD ceramic capacitor-RS C183,C184,C185,C186,C187,C188,C189,C190,C1 149 │ │   ├0058 CI00266 22PF/50V NPO ±5﹪ 0603 91,C192,C193,C194,C221,C222,C223,C224,C225 ,C226,C227,C228,C229,C230,C259,C260,C261,C 262,C263,C264,C269,C270,C281,C282,C326,C32 7,C356,C357 U55,U1,U2,U3,U4,U5,U6,U7,U8,U9,U10,U11,U12, 150 │ │   ├0059 SG00122 SMD integrated circuit-RS-ACT NJM4580M-TE3(SOP8)/(JRC) U13,U14,U15,U16,U17,U18,U19,U20,U21,U22,U2 3,U24,U25,U26,U27,U30,U31,U32,U50 151 │ │   ├0060 HB01334 PCB-RS AMX140_VER090522 152 │ │   ├0061 SE00048 SMD Schottky barrier diode-RS 1A/20V PRLL5817(SOD87)/(PHI) D46,D47...

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Amx-140fx mkii