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Related Manuals for Alto LEGACY Series
Summary of Contents for Alto LEGACY Series
- Page 1 MODEL: AMX 140FX-USB...
- Page 2 CONTENT 1. INTRODUCTION……………………………………………………………………………..1 2. TECHNICAL SPECIFICATION……………………………………………………………..2 3. BLOCK DIAGRAM……………………………………………………………....4 4. SCHEMATIC DIAGRAM…………………………………………………………………….5 5. WIRING DIAGRAM………………………………………………………………………….13 6. PCB LAYOUT………………………………………………………………………………..14 7. TEST PROCEDURE………………………………………………………….....18 8. EXPLODED VIEW & MECHANICAL PARTS LIST……………………………………..25 9. BOM…………………………………………………………………………………………..27...
- Page 3 1. INTRODUCTION - 5 MIC input channels with gold plated XLRs and balanced LINE input - 2 stereo input channels with balanced TRS jacks - Ultra-low noise discrete MIC pre-amps with +48 Phantom Power - Extremely high headroom offering more dynamic range - Balanced inputs for highest signal integrity - Warm, natural 3-band EQ on each mono channel - Switch-able Low-cut filter on each mono channel...
- Page 4 2. TECHNICAL SPECIFICATION Mono Input channels 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) SNR (Signal to Noise Ratio) 112dB Line input electronically balanced Frequency response 10Hz to 55KHz, +/-3dB...
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Page 5: Usb Section
MUTE SWITCH with LED indicator USB SECTION ADC/DAC 16 Bit 32~48KHz Fully Compliant with USB 1.1 specification No software drivers are need with windows XP or MAC OSX Main Mix Section Noise (Bus noise) Fader 0dB, channels muted: -100dBr (ref: +4dBu) Fader 0dB, all input channels assigned and set to UNITY gain: -90dBr (ref: +4dBu) Max output... -
Page 6: Block Diagram
3. BLOCK DIAGRAM - 4 -... -
Page 7: Schematic Diagram
4. SCHEMATIC DIAGRAM - 5 -... - Page 8 - 6 -...
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Page 15: Wiring Diagram
5. WIRING DIAGRAM - 13 -... -
Page 16: Pcb Layout
6. PCB LAYOUT - 14 -... - Page 17 - 15 -...
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Page 20: Test Procedure
7. TEST PROCEDURE 1. Instruments: 1). AP (Audio Precision) 2). Dual oscillograph 3). Voltmeter 4). USB line 2. Instruments Setting: 1). AP output: 0dBu 1KHz SINE waveform, Load out 40Ω Bal-Gnd or Load out 20Ω Unbal–Gnd. 2). AP input: Load 100kΩ BNC-Float or Load 100KΩ XLR-Bal BW: 22Hz~22KHz. - Page 21 the unbalanced input to LINE IN 5/6, rotate the PAN knob of the corresponding channel on LINE IN 7/8 to LEFT or RIGHT, a. The unbalanced output of AUX1, AUX2 which has tested is +2dBu (±2dB) THD+N=0.005%; b. Adjust the AUX1, AUX2 knob to min, the unbalanced output (LEFT & RIGHT) of MAIN MIX OUTPUT is -5dBu (±2dB) THD+N=0.005% (when it is in MONO input, only the corresponding channel has output).
- Page 22 2). When set the EQ HI & LOW knob to max and min (EQ MID to mid), the frequency response curve is: 3). When set the EQ MID knob to max and min (EQ HI & LOW to mid), the frequency curve is: - 20 -...
- Page 23 Note: The frequency response test for regular instrument: 1). Input signal from each channel, rotate the corresponding channel of EQ LOW knob to max (±15) in clockwise, and the output is +15dBu (±2dBu); rotate the corresponding channel of EQ LOW to min (-15) in counterclockwise, and the output is -15dBu (±2dB);...
- Page 24 keys to OFF. 2). Input 0dBu to AP, connect the balanced input to MIC1, MIC2, rotate the LEVEL on CH1 CH2 to max, and connect the unbalanced output to MAIN MIX OUTPUT, the output is +10dBu (±2dB) THD+N<0.005%. 3). Switch the USB RECORD to CH1/2, the USB PLAYBACK to MAIN MIX, and connect the USB line to PC.
- Page 25 8). Open the C:\Apwin\S2\A-A FFT. At2 and set as following picture: 9). Do not input signal, connect the unbalanced output to MAIN MIX OUTPUT, switch the USB RECORD to MAIN MIX, the USB PLAYBACK to MAIN MIX, connect the USB line to PC.
- Page 26 8. Selecting Check: connect the AMX-140FX USB to high quality amplifier and speaker, to see if it will appear abnormal noise. 9. Factory Presets: rotate the entire volume control knob to min, the other control knob to mid, and turn the entire switch OFF. - 24 -...
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Page 27: Exploded View And Parts List
8. EXPLODED VIEW & PARTS LIST - 25-... -
Page 28: Parts List
PARTS LIST No. Part No. Description Specification 1 NI03064 ZC-handle AMX-140; 140FX-V1.0 2 MG00061 screw-RS M3*10 3 MA05704 ZC-panel AMX-140FX USB ALTO-V1.4 4 HK06378 K-PC board P-AMX140FX-USB-DIP 5 HK06381 K-PC board AMX-USB-DIP 6 HK06352 K-PC board P-DSP-PRE-DIP 7 HK01409 K-PC board... - Page 29 φ10.5*18mm 22 NI02083 knob φ10.5*18mm 23 NI02082 knob 24 NI00218 cable tie ALT-102SB 25 NF00061 assurance card ALTO 26 NE05004 label ALTO 27 NH00334 cone paper 0.040*1m 28 NB02752 carton AMX-140;140FX 29 NB02890 barrier AMX-140_V1.0 30 NB02889 barrier AMX-140_V1.0 31 NA00279 clip-chain bag 0.04t*100*150mm_V1.0...
- Page 30 No. Part No. Description Specification Remark 57 HI00026 power switch-RS RA12KKATOF 2P 58 HA01388 wire-RS 2P 100mm UL1007 24AWG 59 HA01835 wire-RS 70mm brown L5R5 60 HA01531 wire-RS 2P 250mm UL1007 24AWG 61 HK06378 PC board P-AMX140FX-USB-DIP 62 SD00074 integrated circuit L7805CV(TO220)/(ST) TR20 63 RC00369...
- Page 31 No. Part No. Description Specification Remark C42,C63,C64,C65,C84,C85,C109,C201,C202,C203,C204,C20 5,C206,C207,C208,C209,C210,C211,C212,C213,C214,C215, C216,C217,C218,C219,C220,C287,C288,C289,C290,C291,C 107 CI00075 SMD ceramic capacitor 0603 0.1uF/50V Y5V +80,-20% 292,C293,C294,C295,C296,C297,C298,C299,C300,C301,C30 2,C303,C304,C305,C306,C307,C308,C309,C310,C311,C312, C313,C314,C315,C316,C317,C322,C323,C324,C325,C335,C 340,C341,C347,C348,C354,C355 R47,R55,R63,R71,R87,R96,R99,R100,R111,R120,R123,R124 ,R125,R428,R457,R458,R25,R26,R31,R32,R58,R59,R60,R61, R86,R89,R90,R92,R95,R97,R98,R105,R106,R107,R108,R109 108 RD00214 10.0KΩ ±1% 0603 ,R110,R112,R113,R114,R115,R116,R117,R118,R119,R121,R SMD precise resistor 1/10W 122,R129,R130,R319,R321,R340,R341,R381,R382,R383,R38 4,R385,R437,R438,R439,R446,R397,R402,R411,R413,R427, R414,R415 109 RD00334 11.0KΩ...
- Page 32 No. Part No. Description Specification Remark 139 RD00339 47.0KΩ ±1% 0603 SMD precise resistor 1/10W R228,R229,R230,R231,R232,R233,R234,R235,R399,R442,R459 140 CI00055 C4,C11,C35,C36,C83 SMD ceramic capacitor 0603 47PF/50V C0G±5%(C1608C0G1H470JT)/TD 141 RD00298 47.0Ω ±1% 0603 R1,R2,R6,R7,R13,R14,R37,R38,R39,R41,R373,R374 SMD precise resistor 1/10W R9,R44,R77,R78,R79,R80,R81,R82,R178,R180,R181,R184,R 142 RD00093 SMD fixed resistor 1/10W 4.7KΩ...
- Page 33 No. Part No. Description Specification Remark 330uF/16V φ8*11mm 5mm 184 CB00268 electrolytic capacitor C373 47uF/100V φ10*12mm 5mm 185 CB00254 electrolytic capacitor C406 47uF/50V φ6.3*11mm 186 CB00334 electrolytic capacitor-RS C21,C22,C24,C25,C41,C44,C48,C49,C91,C92 C17,C20,C45,C56,C61,C62,C86,C87,C88,C89,C90,C93,C94, C95,C96,C97,C98,C100,C101,C102,C103,C104,C105,C106,C 107,C108,C111,C112,C113,C114,C115,C116,C117,C118,C11 9,C120,C121,C122,C123,C124,C125,C126,C127,C128,C129, 47uF/25V φ5*11mm 187 CB00194 electrolytic capacitor C130,C231,C232,C233,C234,C235,C236,C237,C238,C239,C 240,C241,C242,C243,C244,C245,C246,C247,C248,C249,C25 0,C251,C252,C253,C254,C255,C256,C257,C258,C283,C284, C285,C286,C318,C319,C320,C321,C328,C349,C351,C358,C...
- Page 34 No. Part No. Description Specification Remark 232 CI00075 0.1uF/50V Y5V +80,-20% C333,C334,C336,C337,C338,C339,C340,C341 SMD ceramic capacitor 0603 233 CL00002 1.0uF/16V case A C352,C353 SMD tantalum capacitor-RS-ACT 234 CL00006 10uF/16V case B2 C350,C351 SMD tantalum capacitor-RS-ACT 235 RD00068 SMD fixed resistor 1/10W 100Ω...
- Page 35 300 HC00611 IC socket (SMD) PLCC32 (AMP S/N:822516-7) 301 SG00016 SMD integrated circuit UDA1345TS(SSOP28)/(PHI) 302 AE00449 solder material without lead 9308/Sn Ag Cu 303 NB02753 inner case-RS AMX-140/140FX/140FX USB ALTO _V1.0 304 MG00304 copper pillar M3*14*0.5PH 305 MI02091 fixed bracket AMX-140 right_V1.0...