Alto AMX-80 User manual

CONTENT
1. INTRODUCTION .....................................................................................................1
2.TECHNICAL SPECIFICATION...................................................................................2
3. BLOCK DIAGRAM ..................................................................................................3
4. SCHEMATIC DIAGRAM ...........................................................................................4
5. WIRING DIAGRAM ..................................................................................................6
6. PCB LAYOUT ..........................................................................................................7
7. TEST PROCEDURE .................................................................................................9
8. EXPLODED VIEW & MECHANICAL PARTS LIST ......................................................11
9. BOM ......................................................................................................................13

1. INTRODUCTION
- 1 MIC Input channel with gold plated XLR and balanced line inputs
- 2 Stereo input channel with balanced TRS jacks
- Extremely high headroom-offering dynamic range
- Balanced inputs for highest signal interity
- Warm, natural 2-Band EQ on mono channel.
- Warm, natural 2-Band EQ on mono channel.
- Balanced TRS and Headphone Outputs
- 2-track inputs assignable to main mix, headphone output
- Highly accurate 4 segment bar graph meters
- Performance and excellent noise figures
- Manufactures under ISO 9001 certified management system
- 1 -

2.TECHNICAL SPECIFICATION
XXX
X
- 2 -

3. BLOCK DIAGRAM
- 3 -

4. SCHEMATIC DIAGRAM
- 4 -

- 5 -

- 5 -

5. WIRING DIAGRAM
- 6 -

HB02128-AMX-80 TOP LAYER TOP OVERLAY
6. PCB LAYOUT
- 7 -

HB02128-AMX-80 BOTTOM LAYER BOTTOM OVERLAY
- 8 -

7. AMX-80 TEST PROCEDURE
1. Test instruments:
1). AP ( Audio precision )
2).Dual track oscilloscope
3.Voltmeter
2. Instrument setting:
1). AP output : 0dBu 1Khz SINE wave, Load out 40ȍBal-Float or Load out 600ȍBNC-Unbal.
2). AP input : Load 100KȍBNC-Unbal or Load 100KȍBal-Float BWΚ22Hz~22KHz. FltrΚ
A-Weighting(1207)
3. Visual Check:
1). Check the AMX-80 surface; and be sure no friction of all pots.
4. Functions Test:
1). Set all knob to 0 position, TRIM to minimum , and MAIN MIX LEVEL to middle position.
2). Set AP output to -30 dBu, connecting unbalanced input to LINE IN 1, unbalanced output
to MAIN OUTPUT, then the output LEVEL should be -45dBu(±3dBu)
Set TRIM to maximum, output LEVEL should be 0dBu(±3dBu)
(After test set TRIM back to minimum)
3). Set AP output to +15dBu, connecting unbalanced input to LINE IN 1, unbalanced output to
MAIN OUTPUT, then the output LEVEL should be 0dBu(±3dBu) THD+N<0.005%.
Rotate CH LEVEL to maximum, output LEVEL should be +15dBu (±3dBu)
THD+N<0.005%.
(After test set CH LEVEL back to middle position)
Rotate MAIN MIX LEVEL to maximum, the output LEVEL should be +15dBu (±3dBu)
THD+N<0.008%.
(After test set MAIN MIX LEVEL back to middle position, and CH LEVEL to minimum.)
4). Set AP input to 0dBu, connecting unbalanced input with LINE2/3~LINE4/5, unbalanced
output to MAIN OUTPUT, then the output LEVELshould be 0dBu (±3dBu) THD+N<0.005%.
Rotate CH LEVEL to maximum, the output should be +15dBu (±3dBu) THD+N<0.005%.
(After test set CH LEVEL back to middle position)
5). Set AP input to 0dBu, connecting balanced input to MIC1, and the unbalanced output to
MAIN OUTPUT, then the level should be 0 dBu (±3dBu), THD+N<0.005%. (After test set CH
LEVEL back to middle position)
Set the MAIN MIX LEVEL knob to maximum, the output level should be +15dBu (±3dBu),
THD+N<0.008%. (After test set MAIN MIX LEVEL back to middle position. And set the CH
LEVEL to minimum. )
6). Set AP input to +15dBu, connecting unbalanced input to LINE IN1, and the unbalanced
output to PHONES, the output level should be 0dBu(±3dBu) THD+N<0.01%.
Rotate the CH LEVEL to maximum, output level should be +15dBu (±3dBu),
THD+N<0.006%.( After test set the knob to central position )
Set the MAIN MIX LEVEL to maximum, the output level should be+15dBu (±3dBu),
THD+N<0.01%.( After test set the knob to central position)
- 9 -

Set the PHONES to maximum, the output level should be+10dBu (±3dBu), THD+N<0.006%.
( After test set the knob to central position and CH LEVEL to minimum. )
7). Set AP input to 0dBu, connecting unbalanced input at LINE IN2/3~ LINE IN4/5, and the
unbalanced output to PHONES, the output level should be 0dBu(±3dBu) THD+N<0.01%.
Rotate the CH LEVEL to maximum, output level should be +15dBu (±3dBu),
THD+N<0.006%.( After test set the knob to central position )
Set the MAIN MIX LEVEL to maximum, the output level should be+15dBu (±3dBu),
THD+N<0.01%.( After test set the knob to central position)
Set the PHONES to maximum, the output level should be+10dBu (±3dBu), THD+N<0.006%.
( After test set the knob to central position and CH LEVEL to minimum. )
8). Set AP input to +15dBu, connecting unbalanced input at LINE IN1, and the unbalanced output
to TAPE OUT, the output level should be 0dBu(±3dBu) THD+N<0.005%.
Rotate the CH LEVEL to maximum, output level should be +15dBu (±3dBu),
THD+N<0.005%.( After test set the knob to central position )
Set the MAIN MIX LEVEL to maximum, the output level should be+15dBu (±3dBu),
THD+N<0.008%.
( After test set the knob to central position and CH LEVEL to minimum. )
9). Set AP input to 0dBu, connecting unbalanced input at LINE IN2/3~ LINE IN4/5, and the
unbalanced output to TAPE OUT, the output level should be 0dBu(±3dBu) THD+N<0.005%.
Rotate the CH LEVEL to maximum, output level should be +15dBu (±3dBu),
THD+N<0.005%.( After test set the knob to central position )
Set the MAIN MIX LEVEL to maximum, the output level should be+15dBu (±3dBu),
THD+N<0.008%.
( After test set the knob to central position and CH LEVEL to minimum. )
10). Set AP input to 0dBu, connecting unbalanced input to TAPE IN and the unbalanced output to
MAIN OUTPUT, then press the TAPE TO MIX key ,the output level should be 0dBu(±3dBu)
THD+N<0.005%.
Set the MAIN MIX LEVEL to maximum, the output level should be+15dBu (±3dBu),
THD+N<0.009%. ( After test repeat press the key once )
11). Set AP input to 0dBu, connecting unbalanced input to TAPE IN and the unbalanced output to
TAPE OUT, then press the TAPE TO MIX key ,the output level should be 0dBu(±3dBu)
THD+N<0.005%.
Set the MAIN MIX LEVEL to maximum, the output level should be+15dBu (±3dBu),
THD+N<0.009%. ( After test repeat press the key once )
12). Set AP input to 0dBu, connecting unbalanced input to TAPE IN and the unbalanced output to
PHONES, then press the TAPE TO PHONES key ,the output level should be 0dBu(±3dBu)
THD+N<0.005%.
Set the PHONES control to maximum, the output level should be 10dBu (±3dBu),
THD+N<0.009%. ( After test repeat press the key once )
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6. Random check
Connect AMX-80 to high quality amplifier and speaker, to check if the sound is normally.
7. The shipment setting of the AMX-80
Set all the volumes knobs to minimum, all the other knobs to middle position, and all the switches
to off position.
Test Complete
5. Frequency Response test
With unbalance input connecting LINE IN of the AMX-80, set the high EQ knob to maximum & low EQ knob to
minimum(the mid EQ to middle position),and use unbalanced output toconnect MAIN OUT. The frequency
response diagram should be as following:
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8. EXPLODED VIEW & MECHANICAL PARTS LIST
- 12-

- 12-

Class Part No. Part Name Specification QTY Remark
PF03243 MIXER AMX-80_ALTO_230V 1
ѥ0001 MA06128 panle-RS AMX-80 ALTO_V1.3 1
ѥ0002 MB04892 chassis-RS AMX-80 ALTO_V1.2 1
ѥ0003 HI00171 power switch-RS R612KKAT0F1 1
ѥ0004 NI02084 knob ij10.5*18mm 1
ѥ0005 NI02817 knob ij10.5*18mm 1
ѥ0006 NI02082 knob ij10.5*18mm 3
ѥ0007 NI02083 knob ij10.5*18mm 2
ѥ0008 NI00826 knob ij12*18mm double color 3
ѥ0009 NI02837 knob ij35*11mm 534C 1
ѥ0010 NI02377 knob-RS ij5.5*7.5(3.3*3.3mm)_V1.2 2
ѥ0011 MG00041 screw M3*6 13
ѥ0012 MG00061 screw-RS M3*10 3
ѥ0013 ME00060 MIC jack JY-6351G-02-250 8
ѥ0014 MF00061 MIC jack ij9.6*ij13*0.5t 9
ѥ0015 NA00121 PE bag 0.04t*280*220mm 1
ѥ0016 NB04908 gift carton-RS AMX-80 ALTO_V1.1 1
ѥ0017 NB04909 barrier-RS AMX-80_V1.2 1
ѥ0018 NF00061 assurance card ALTO 1
ѥ0019 NE05004 label ALTO 4
Ѩ Ѭ0001 NH00334 cone paper 0.040*1m 1
ѥ0020 NF02625 user manual-RS AMX-80 ALTO_V1.0 1
Ѩ Ѭ0001 NH00149 paper 889*640mm 0.75
ѥ0021 NE16344 lable-RS AMX-80_V1.0 4
Ѩ ѥ0001 NI00014 membrane 0.035*1M 1
Ѩ Ѭ0002 NH00012 bond paper 0.04*1M 1
ѥ0022 NE02717 label MADE IN CHINA 2
Ѩ ѥ0001 NH00038 paper 0.115*1M 1
Ѩ Ѭ0002 NI00028 membrane 0.110*1M 1
ѥ0023 TG00212 adaptor-RS 230V/50Hz_AC18V/500mA_EI-41_CE 1
ѥ0024 NI00245 sleeve ij3*10mm 3
Ѩ Ѭ0001 NI00243 sleeve ij3*1000mm 10
ѥ0025 NI00261 sleeve ij5*20mm 2
Ѩ Ѭ0001 NI00258 sleeve ij5*1000mm 20
ѥ0026 HC00839 DC power jack-RS SCD554CCS103BB4G 1
ѥ0027 NI00378 plastic washer 9*13 used to PU socket 1
ѥ0028 NC00037 cushion-RS-ACT 1t*ij8*ij12.5mm XM1602_V1.1 1
Ѩ Ѭ0001 NC01110 insulator 1.0t*65mm(+0.1)*60M 0.3
ѥ0029 NI00498 self-adhere foot cushion 12.7*7*6mm(SF-005) 4
ѥ0030 HA00040 wire-RS 60mm yellow L5R5 1
ѥ0031 HA01551 wire-RS 2P 80mm UL1007 26AWG 1
ѥ0032 HK07192 PC board-RS P-AMX-80-DIP 1
Ѩ ѥ0001 CB00073 electrolytic capacitor 1000uF/35V ij13*20mm 2 C106,C107
Ѩ ѥ0002 HC00076 connector(male) 2P 2.5mm 180° 1 CN1
Ѩ ѥ0003 SD00077 integrated circuit-RS L7815CV(TO220)/(ST/MOROCCO) 1 IC1
Ѩ ѥ0004 SD00079 integrated circuit L7915CV(TO220)/(ST) 1 IC2
Ѩ ѥ0005 RC00358 potentiometer B50Kȍ-RD09F113A223-50K2BT(SAS1);30F-C 2 VR2,VR3
Ѩ ѥ0006 RC00465 potentiometer B5KȍRD09F113A225-5K2BT(SAS1);30F-C 3 VR5,VR10,VR11
9.BOM
-13 -

Class Part No. Part Name Specification QTY Remark
Ѩ ѥ0007 SD00007 integrated circuit BA15218N(use M5218Linstead )(SIP8)/(ROHM) 2 U15,U16
Ѩ ѥ0008 HC00126 balance MIC jack-RS JY-5042-030G female plug 180° 1 X1
Ѩ ѥ0009 SA00052 L.E.D ij3 round(green)long foot 26 5 LD5,LD6,LD7,LD8,LD9
Ѩ ѥ0010 HC00125 MIC jack-RS JY-6351G-02-250 8 X2,X3,X4,X5,X6,X7,X8,X9
Ѩ ѥ0011 HI00236 push-button switch-RS 2 6P PS-92 26A(SELF-LOCK) 2 SW3,SW4
Ѩ ѥ0012 SA00053 L.E.D ij3 round(red)long foot 26mm 5 LD1,LD2,LD3,LD4,LD10
Ѩ ѥ0013 HC00528 RCA jack SCP6873NS3232T1 4P red white 1 X10
Ѩ ѥ0014 RC00359 potentiometer W50KȍRD09F113A224-50K4BT(SAS1);30F-C 1 VR4
Ѩ ѥ0015 RC00361 potentiometer W50KȍRD12L12CA60B-50K4BT*2(SAS1);30F-C 3 VR6,VR7,VR9
Ѩ ѥ0016 RC00617 potentiometer(dual unit)-RS W50KȍRD12L12CA606-50KBT*2(SAS);20F-C 1 VR8
Ѩ ѥ0017 SA00054 L.E.D 3m/m round(yellow)long foot 26 2 LD11,LD12
Ѩ ѥ0018 RC00356 potentiometer Z10KȍRD09F1130042-10KZ(SAS1);30F 1 VR1
Ѩ ѥ0019 NI01782 LED spacer support LEDS-11 11mm 12
Ѩ ѥ0020 MI02702 bady-RS-ACT MIX50 2t*29*35*39_V1.0 1
ѨѨѬ0001 MJ00055 AL plate 2*2000*1000 10.88kg 1
Ѩ ѥ0021 ME00015 color nut 3m/m 2
Ѩ ѥ0022 MF00037 washer ij3.2*ij5.5*1t 2
Ѩ ѥ0023 MG00162 screw M3*8 2
Ѩ ѥ0024 NI02249 plastic washer TW-1(TO-220) 2
Ѩ ѥ0025 NC00005 mica SB-9500DSP 18*13*0.1t_V1.0 2
Ѩ ѥ0026 ND00155 EV foam 25*20*5 1
Ѩ ѥ0027 AC00179 tin without lead-RS M705E Sn 3Ag-0.5Cu 9.5148
Ѩ ѥ0028 HK07193 PC board-RS P-AMX-80-SMD 1
ѨѨѥ0001 SE00011 SMD rectifier diode RLS4148 0.5A (LL-34) 8 D1,D2,D3,D4,D5,D6,D9,D10
ѨѨѥ0002 RD00224 SMD precise resistor 1/10W 100Kȍ±1% 0603 4 R132,R133,R134,R135
ѨѨѥ0003 CI00059 SMD ceramic capacitor 0603 100PF/50V NPO ±5% 10 C38,C39,C40,C41,C42,
C43
,
C44
,
C45
,
C46
,
C47
ѨѨѥ0004 CI00075 SMD ceramic capacitor 0603 0.1uF/50V Y5V +80,-20% 27
C80,C81,C82,C83,C84,
C85,C86,C87,C88,C89,
C90,C91,C92,C93,C94,
C95,C96,C97,C98,C99,
C100,C101,C102,C103,
C116,C117,C119
ѨѨѥ0005 RD00214 SMD precise resistor 1/10W 10.0Kȍ±1% 0603 37
R5,R6,R7,R23,R50,R51,R52,
R53,R54,R55,R56,R57,R58,
R59,R60,R61,R62,R63,R64,
R65,R66,R67,R68,R69,R70,
R71,R72,R73,
R136,R137,R140,R85,R131,
R138,R139,R14,R15
ѨѨѥ0006 RD00272 SMD precise resistor 1/10W 10.0ȍ±1% 0603 1 R125
ѨѨѥ0007 RD00275 SMD precise resistor 1/10W 110ȍ±1% 0603 1 R126
ѨѨѥ0008 RD00069 SMD fixed resistor 1/10W 120ȍ±5% 0603 8 R99,R100,R101,R102,
R103
,
R104
,
R105
,
R106
ѨѨѥ0009 RD00200 SMD precise resistor 1/10W 150ȍ±1% 0603 1 R127
ѨѨѥ0010 RD00282 SMD precise resistor 1/10W 1.00Kȍ±1% 0603 3 R110,R111,R128
ѨѨѥ0011 RD00201 SMD precise resistor 1/10W 1.50Kȍ±1% 0603 3 R39,R74,R75
ѨѨѥ0012 RD00292 SMD precise resistor 1/10W 1.00Mȍ±1% 0603 1 R31
ѨѨѥ0013 RD00219 SMD precise resistor 1/10W 20.0Kȍ±1% 0603 9 R78,R79,R80,R81,R82,R8
3,R84,R91,R92
ѨѨѥ0014 CI00109 SMD ceramic capacitor 0603 20PF/50V C0G±5%(C1608C0G1H200JT)/TDK 2 C37,C110
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Class Part No. Part Name Specification QTY Remark
ѨѨѥ0015 CI00051 SMD ceramic capacitor 0603 22PF/50V C0G±5%(C1608C0G1H220JT)/TDK 26
C9,C10,C48,C49,C50,C51,
C52,C53,C54,C55,C56,C57,
C66,C67,C68,C69,C70,C71,
C72,C73,C74,C75,C76,C77,
C112,C113
ѨѨѥ0016 RD00106 SMD fixed resistor 1/10W 27Kȍ±5% 0603 2 R116,R117
ѨѨѥ0017 RD00265 SMD fixed resistor 1/10W 27ȍ±5% 0603 1 R12
ѨѨѥ0018 RD00203 SMD precise resistor 1/10W 2.00Kȍ±1% 0603 1 R130
ѨѨѥ0019 RD00329 SMD precise resistor 1/10W 30.0Kȍ±1% 0603 4 R93,R94,R95,R96
ѨѨѥ0020 RD00370 SMD precise resistor 1/10W 33.2Kȍ±1% 0603 2 R37,R38
ѨѨѥ0021 RD00407 SMD precise resistor 1/10W 36.0Kȍ±1% 0603 5 R32,R33,R34,R35,R36
ѨѨѥ0022 SF00053 transistor MMBT3906(SOT23)/(PHI) 2 TR3,TR4
ѨѨѥ0023 RD00406 SMD precise resistor 1/10W 3.60Kȍ±1% 0603 4 R8,R9,R97,R98
ѨѨѥ0024 RD00414 SMD precise resistor 1/10W 3.90Kȍ±1% 0603 1 R20
ѨѨѥ0025 CI00063 SMD ceramic capacitor 0603 470PF/50V NPO ±5н3 C1,C2,C3
ѨѨѥ0026 RD00078 SMD fixed resistor 1/10W 470ȍ±5% 0603 2 R123,R124
ѨѨѥ0027 RD00339 SMD precise resistor 1/10W 47.0Kȍ±1% 0603 3 R21,R46,R90
ѨѨѥ0028 CI00055 SMD ceramic capacitor 0603 47PF/50V C0G±5%(C1608C0G1H470JT)/TDK 1 C115
ѨѨѥ0029 RD00298 SMD precise resistor 1/10W 47.0ȍ±1% 0603 2 R1,R2
ѨѨѥ0030 RD00341 SMD precise resistor 1/10W 4.70Kȍ±1% 0603 6 R40,R41,R42,R43,R44,R45
ѨѨѥ0031 RD00371 SMD precise resistor 1/10W 51.1Kȍ±1% 0603 2 R3,R4
ѨѨѥ0032 RD00094 SMD fixed resistor 1/10W 5.1Kȍ±5% 0603 9 R47,R48,R49,R76,R77,
R86
,
R87
,
R88
,
R89
ѨѨѥ0033 RD00210 SMD precise resistor 1/10W 5.11Kȍ±1% 0603 6 R10,R11,R13,R16,R114,R115
ѨѨѥ0034 RD00211 SMD precise resistor 1/10W 5.49Kȍ±1% 0603 2 R112,R113
ѨѨѥ0035 RD00510 SMD precise resistor 1/10W 6.20Kȍ±1% 0603 4 R25,R28,R29,R30
ѨѨѥ0036 RD00326 SMD precise resistor 1/10W 6.80Kȍ±1% 0603 5 R17,R19,R22,R26,R27
ѨѨѥ0037 RD00082 SMD fixed resistor 1/10W 820ȍ±5% 0603 1 R129
ѨѨѥ0038 SF00033 SMD transistor-RS-ACT BC846B(SOT23)/(PHI) 6 TR1,TR2,TR5,TR6,TR7,TR8
ѨѨѥ0039 RD00327 SMD precise resistor 1/10W 8.20Kȍ±1% 0603 2 R108,R109
ѨѨѥ0040 SE00008 SMD rectifier diode DA204K/T-146 1 D7
ѨѨѥ0041 SG00116 SMD integrated circuit BA10339FV E2(SSOP-B14)/(ROHM) 2 U13,U14
ѨѨѥ0042 RD00213 SMD precise resistor 1/10W 7.50Kȍ±1% 0603 1 R18
ѨѨѥ0043 HK07170 PC board-RS P-AMX-80-AI 1
ѨѨѨѥ0001 HB02128 PCB-RS AMX-80_VER061222 1
ѨѨѨѥ0002 CC00074 mylar capacitor-RS-ACT 0.01uF/100V 3% 2 C104,C105
ѨѨѨѥ0003 RA01260 fixed resistor 1/4W 120ȍ2 R107,R122
ѨѨѨѥ0004 SA00159 rectifier diode 1A/1000V IN4007 2 D14,D15
ѨѨѨѥ0005 SA00328 Schottky barrier diode-RS 1N5817(DO-41) 2 D12,D13
ѨѨѨѥ0006 CB00242 electrolytic capacitor 22uF/35V ij5*11mm 2 C4,C5
ѨѨѨѥ0007 CC00059 mylar capacitor 0.033uF/100V 3% 2 C78,C79
ѨѨѨѥ0008 CC00063 mylar capacitor-RS 0.0039uF/100V 10% 1 C36
ѨѨѨѥ0009 RA01259 fixed resistor 1/4W 47ȍ4 R118,R119,R120,R121
ѨѨѨѥ0010 CB00194 electrolytic capacitor 47uF/25V ij5*11mm 36
C8,C12,C13,C14,C15,C16,C17,C
18,C19,C20,C21,C22,C23,
C24,C25,C26,C27,C28,C29,
C30,C31,C32,C33,C34,C35,
C58,C59,C60,C61,C62,C63,
C64,C65,C108,C109,C111
ѨѨѨѥ0011 CB00334 electrolytic capacitor-RS 47uF/50V ij6.3*11mm 2 C6,C7
ѨѨѨѥ0012 HA01933 jump 2.5mm 1 CN2
ѨѨѨѬ0013 RA01413 fixed resistor 1/4W 2.7Kȍ2 R141,R142
- 15 -

Class Part No. Part Name Specification QTY Remark
ѨѨѬ0044 SG00558 integrated circuit-RS 4580M(SOP8)/(YW) 12 U1,U2,U3,U4,U5,U6,U7,U
8
,
U9
,
U10
,
U11
,
U12
Ѩ ѥ0029 CB00255 electrolytic capacitor 1000uF/10V ij8*11mm 5mm 1 C11
Ѩ Ѭ0030 SD00238 integrated circuit MC78L18ACP(TO92)/(ON) 1 IC3
ѥ0033 HJ00002 dessicant 10g 1
Ѭ0034 NB04919 carton-RS AMX-80 ALTO_V1.1 1
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