Alto ACL2, Service Manual

Page 1: ...Service Manual Model ACL2 Compressor Limiter Gate www altoproaudio com Version 1 1 ...

Page 2: ...TENTS 1 Specification 2 Block Diagram 3 Schematic Diagram 4 Printed Circuit Board 5 Wiring Diagram 6 Test Procedure 7 Electrical Parts List 8 Exploded Views Mechanical Parts List 9 Troubleshooting 10 Notes ...

Page 3: ...ise 90dBrA unweighted 22Hz to 22kHz THD 0 008 Typical at 4dBu 1kHz unity gain 0 04 Typical at 20dBu 1kHz unity gain IMD 0 1 Typical SMPTE Crosstalk 100dB 22Hz to 22Khz Stereo Coupling True RMS detection COMPRESSOR SECTION Type Interactive Compressor Interactive Knee Adaptation Threshold variable 40dB to 20dB Ratio variable 1 to LIM Manual Attack Time variable 0 1ms to 200ms 20dB Manual Release Tim...

Page 4: ...ope 230VAC 50Hz Mains Voltages General Export Model 100 120VAC 200 240VAC 50 60Hz Fuse 100 120VAC 200mA SLOW BLOW 200 240VAC 100mA SLOW BLOW Power consumption 10Watts Mains Connection Standard IEC receptacle PHYSICAL Dimension W 483 0 D 198 0 H 44 2 mm Net Weight 3Kg ...

Page 5: ...K SW2 AUTO A RELEASE DI2 HBJO SFEVDUJPO NFUFS AUDIO INPUT2 AUDIO OUTPUT2 TFSWP CBMBODFE JOQVU TUBHF WDB SIDE CHAIN2 WDB PVUQVU ESJWFS PVUQVU A OUTPUT ESJWFS AUDIO OUTPUT2 A OUTPUT A THRESHOLD CLOSE BVEJP EFUFDUPS A THRESHOLD BVEJP EFUFDUPS BVUP HBUF DJSDVJUSZ UIBU3261B BVUP DPNQSFTTPS DJSDVJUSZ A RATIO A ATTACK SW2 AUTO A RELEASE DI3 HBJO SFEVDUJPO NFUFS SW1 SW A2 1 BDM3 CMPDL EJBHSBN UIBU3261B SW...

Page 6: ...P LEVEL 1 SINGAL OUTPUT 1 3 12 V V IC3E LM339 ACL2 FP Sch Titel Size File Date Draw n By Sheet Revision Model No 21 Sep 2004 W EN XIANG ACL2 FP 1 1 of ACL2 VER040910 A3 C13 22U 25V R25 20K R26 20K 3 2 1 IC11A TL064 R28 20K R42 2 4K R27 20K C18 0 0068U 5 6 7 IC11B TL064 1 2 3 VR8 10KB 5 6 7 IC12B 4580 R29 20K R31 20K R30 20K C26 33P C14 22U 25V R73 1 1K 3 2 1 IC12A 4580 1 2 3 VR10 10KB R74 1 1K C31...

Page 7: ... 1 2 3 CN2 3P2 5 15V 15V 15V 15V 3 2 1 IC1A 4580M 8 4 IC1C 4580M C6 104P C10 104P R17 100K R19 20 0K R18 20 0K R20 20 0K R10 100K C7 33P C8 33P R21 20 0K R27 47R 1 2 3 4 5 6 7 8 IC3 THAT2150A R24 15K R30 33R R29 33R R25 10R R22 100K R23 150K R26 5 1K C12 10U 50V 15V 15V C9 22U 25V C11 100P VR2 100KB 15V 15V ADJ SYM LINE IN1 MIC IN1 2 1 3 4 X6 JY5042 030G 3c 5e 1a 4d 2b X7 JY 6351G 02 250 3c 5e 1a ...

Page 8: ...PCB ACL2 FP Top overlay PCB ACL2 FP Bottom Layer PCB ACL2 FP Bottom Solder Mask PCB ACL2 FP TOP Layer ...

Page 9: ...avel T1 20mil 0 508mm 204 57 40 Inch 1457 88 mm T2 21mil 0 5334mm 5 17 98 Inch 456 78 mm T3 31mil 0 7874mm 98 40 19 Inch 1020 90 mm T4 39mil 0 9906mm 163 50 57 Inch 1284 45 mm T5 87mil 2 2098mm 28 30 60 Inch 777 17 mm T6 138mil 3 5052mm 8 NPTH 31 64 Inch 803 66 mm Totals 506 228 38 Inch 5800 84 mm ...

Page 10: ...PCB ACL2 BP Top overlay PCB ACL2 BP Bottom Layer PCB ACL2 BP Bottom Solder Mask PCB ACL2 BP TOP Layer ...

Page 11: ...12mm 9 13 28 Inch 337 38 mm T3 31mil 0 7874mm 24 25 45 Inch 646 37 mm T4 39mil 0 9906mm 27 25 58 Inch 649 85 mm T5 47mil 1 1938mm 8 10 52 Inch 267 09 mm T6 59mil 1 4986mm 36 14 98 Inch 380 60 mm T7 63mil 1 6002mm 12 11 26 Inch 286 09 mm T8 150mil 3 81mm 3 19 77 Inch 502 03 mm T9 63mil 1 6002mm 4 NPTH 9 87 Inch 250 67 mm Totals 131 140 12 Inch 3559 12 mm ...

Page 12: ...1 2 3 4 A B C D 4 3 2 1 D C B A QU TDY45 DO2 DO3 DO4 DO5 BD JOQVU BDM3 Б ੨ቢဦ YQXS DO3 DO 4 CN2 ACL2 FP ACL2PWRSW CN1 P T2 P T1 ACL2 BP CN1 D O2 DO 4 ...

Page 13: ... 20 45kg MJ00058 0001 0 00 N PCS KG 2004 09 27 5 0000 1 iron pillar hexagon6 35 M3 6 ME00035 0002 0 00 N PCS 2004 09 27 1 0000 1 screw pillar M4 10 0 7PH ME00001 0003 0 00 N PCS 2004 09 27 2 0000 1 screw pillar M3 10 0 5PH ME00004 0004 0 00 N PCS 2004 09 27 3 0000 1 iron pillar hexagon6 35 M3 5 2 ME00032 0005 0 00 N PCS 2004 09 27 1 0000 1 frint board ACL2_V1 0 MI02395 0003 0 00 N PCS 2004 11 06 1...

Page 14: ...0 1 switch key 32 12 53 14_V1 0 NI03252 0014 0 00 N PCS 2004 11 06 1 0000 1 bole 15 15 10 7_V1 0 NI03253 0015 0 00 N PCS 2004 11 06 3 0000 1 screw M3 6 MG00025 0016 0 00 N PCS 2004 11 06 7 0000 1 screw M3 6 MG00038 0017 0 00 N PCS 2004 11 06 2 0000 1 screw M3 10 MG00042 0018 0 00 N PCS 2004 11 06 4 0000 1 screw M3 10 0 5PH_V1 0 MG00538 0019 0 00 N PCS 2004 11 06 1 0000 1 washer φ4 φ7 1t MF00038 00...

Page 15: ... 0 00 N PCS 2004 11 06 20 0000 1000 sleeve φ4 1000mm NI00248 0001 0 00 N M 2002 06 04 3 0000 1 cable tie black ALT 102SB NI00218 0037 0 00 N PCS 2004 11 06 4 0000 1 foot cushion 12 7 9 3t SF 004 NI00501 0038 0 00 N PCS 2004 11 06 1 0000 1 clip chain bag 5 7 NA00137 0039 0 00 N PCS 2004 11 06 1 0000 1 assurance card ALTO NF00061 0040 0 00 N PCS 2004 11 06 1 0000 1 clip chain bag 0 04t 100 150mm_V1 ...

Page 16: ...L 714YD SA00241 0003 0 00 N PCS 2004 11 06 LD2 LD4 26 0000 1 L E D 3 3 L 714YD SA00242 0004 0 00 N PCS 2004 11 06 LD1 LD3 LD7 LD8 LD9 LD10 LD11 LD12 LD13 LD14 LD15 LD16 LD17 LD18 LD19 LD20 LD21 LD22 LD23 LD24 LD25 LD26 LD27 LD28 LD29 LD30 3 0000 1 separating 38 4 22 5 2 9_V1 0 NI03261 0005 0 00 N PCS 2004 11 06 LD1 LD2 LD3 LD4 LD5 LD6 LD7 LD8 LD9 LD10 LD11 LD12 LD13 LD14 LD15 LD16 LD17 LD18 LD19 L...

Page 17: ... fixed resistor 1 4W 100Ω RA01112 0001 0 00 N PCS 2004 11 06 R81 R82 R83 R84 2 0000 1 metal film capacitor MSC 0 0068uF 100V 5 CASE01 CF00141 0002 0 00 N PCS 2004 11 06 C17 C18 6 0000 1 metal film capacitor 0 047uF 100V 5 CASE01 CF00147 0003 0 00 N PCS 2004 11 06 C19 C20 C21 C22 C23 C24 2 0000 1 metal film capacitor MSC 0 1uF 63V 5 CASE01 CF00140 0004 0 00 N PCS 2004 11 06 C35 C36 2 0000 1 metal f...

Page 18: ...6 Q9 Q10 Q11 Q12 1 0000 1 PC board P ACL2 FP SMD HK04587 0014 0 00 N PCS 2004 11 06 1 0000 1 PCB ACL2 FP 1 2 _VER040910 HB01390 0001 0 00 N PCS 2004 11 06 2 0000 1 SMD fixed resistor 1 10W 100Ω 5 0603 RD00068 0002 0 00 N PCS 2004 11 06 R139 R140 2 0000 1 SMD fixed resistor 1 10W 150Ω 5 0603 RD00070 0003 0 00 N PCS 2004 11 06 R59 R60 2 0000 1 SMD fixed resistor 1 10W 470Ω 5 0603 RD00078 0004 0 00 N...

Page 19: ...0603 RD00088 0012 0 00 N PCS 2004 11 06 R133 R134 4 0000 1 SMD fixed resistor 1 10W 3 0KΩ 5 0603 RD00090 0013 0 00 N PCS 2004 11 06 R61 R62 R63 R64 2 0000 1 SMD fixed resistor 1 10W 3 9KΩ 5 0603 RD00092 0014 0 00 N PCS 2004 11 06 R93 R94 2 0000 1 SMD fixed resistor 1 10W 4 7KΩ 5 0603 RD00093 0015 0 00 N PCS 2004 11 06 R9 R10 6 0000 1 SMD fixed resistor 1 10W 5 1KΩ 5 0603 RD00094 0016 0 00 N PCS 20...

Page 20: ...2004 11 06 R115 R116 6 0000 1 SMD fixed resistor 1 10W 47KΩ 5 0603 RD00111 0025 0 00 N PCS 2004 11 06 R114 R113 R112 R111 R110 R109 2 0000 1 SMD fixed resistor 1 10W 68KΩ 5 0603 RD00114 0026 0 00 N PCS 2004 11 06 R11 R12 4 0000 1 SMD fixed resistor 1 10W 82KΩ 5 0603 RD00115 0027 0 00 N PCS 2004 11 06 R1 R2 R3 R4 4 0000 1 SMD fixed resistor 1 10W 100KΩ 5 0603 RD00116 0028 0 00 N PCS 2004 11 06 R5 R...

Page 21: ... 10W 10 0KΩ 1 0603 RD00214 0037 0 00 N PCS 2004 11 06 R101 R102 2 0000 1 SMD ceramic capacitor 0603 33PF 50V NPO 5 CI00053 0038 0 00 N PCS 2004 11 06 C25 C26 4 0000 1 SMD ceramic capacitor 0603 47PF 50V NPO 5 CI00055 0039 0 00 N PCS 2004 11 06 C5 C6 C7 C8 4 0000 1 SMD ceramic capacitor 0603 100PF 50V NPO 5 CI00059 0040 0 00 N PCS 2004 11 06 C29 C30 C31 C32 12 0000 1 SMD rectifier diode RLS4148 0 5...

Page 22: ...tic capacitor 22uF 25V φ6 7mm CB00033 0003 0 00 N PCS 2004 11 06 C3 C9 2 0000 1 ceramic capacitor 0 1uF SL CA00053 0004 0 00 N PCS 2004 11 06 C6 C10 2 0000 1 resistor 100KΩ 3P TG625HC 104 RC00185 0005 0 00 N PCS 2004 11 06 VR1 VR2 2 0000 1 integrated circuit THAT2150A SD00015 0006 0 00 N PCS 2004 11 06 IC2 IC3 2 0000 1 XLR MIC jack 99M 107SP 1 2 90 PUSH HC00112 0007 0 00 N PCS 2004 11 06 X1 X6 2 0...

Page 23: ...04 0 00 N PCS 2004 11 06 R8 R27 2 0000 1 SMD fixed resistor 1 10W 5 1KΩ 5 0603 RD00094 0005 0 00 N PCS 2004 11 06 R16 R26 2 0000 1 SMD fixed resistor 1 10W 15KΩ 5 0603 RD00103 0006 0 00 N PCS 2004 11 06 R7 R24 6 0000 1 SMD fixed resistor 1 10W 100KΩ 5 0603 RD00116 0007 0 00 N PCS 2004 11 06 R1 R3 R6 R10 R17 R22 2 0000 1 SMD fixed resistor 1 10W 150KΩ 5 0603 RD00118 0008 0 00 N PCS 2004 11 06 R12 R...

Page 24: ...00 N PCS 2004 11 06 C6 C7 2 0000 1 electrolytic capacitor 2200uF 35V φ16 31mm CB00076 0005 0 00 N PCS 2004 11 06 C18 C19 1 0000 1 bridge rectifier 1A 400V RB154 SA00001 0006 0 00 N PCS 2004 11 06 DB1 1 0000 1 integrated circuit L7815CV TO 220 ST SD00077 0007 0 00 N PCS 2004 11 06 IC1 1 0000 1 integrated circuit L7915CV TO 220 ST SD00079 0008 0 00 N PCS 2004 11 06 IC2 2 0000 1 row wire header male ...

Page 25: ...1122 HB01389 0001 0 00 N PCS 2004 11 06 1 0000 1 power switch SDDLB 1007U HI00023 0002 0 00 N PCS 2004 11 06 SW1 1 0000 1 diode φ3 blue 6554 TLHB4400 SA00185 0003 0 00 N PCS 2004 12 02 LD1 1 0000 1 row wire header male 2P 2 5mm 180 HC00076 0004 0 00 N PCS 2004 11 06 CN1 1 0000 1 wire 250 black HA01798 0005 0 00 N PCS 2004 11 06 1 0000 1 jumper wire 10mm HA01925 0006 0 00 N PCS 2004 11 06 R1 0 0200...

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