Alto DI 4 - II Service Manual Download Page 1 | Manualshive

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Version 1.0

MODEL:

DI

4

- II

Revised on Jan,2010

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Summary of Contents for DI 4 - II

Page 1: ...www altoproaudio com Version 1 0 MODEL DI 4 II Revised on Jan 2010...

Page 2: ...CONTENTS 1 Introduction 1 2 Specification 2 3 Block Diagram 3 4 Schematic Diagram 4 5 Wiring Diagram 6 6 PCB Layout 7 7 Exploded View Mechanical Parts List 15 8 BOM List 17...

Page 3: ...eliminate noise caused by the ground loop There are basically two different kinds of Direct Boxes on the market Passive and active Both will be connected to the MIC input of the Mixer but active boxes...

Page 4: ...3dbm Bandwidth 600Ohm 23Hz to 60Khz 3dbm Bandwidth High Cut 23Hz to 8Khz 3dbm Noise Level 105dBm THD N 1 kHz 10 dBm 0 01 Connector type 3 pole IEC grounded Type Servo controlled stabilized Mains supp...

Page 5: ...3 4 CN9 INPUT 3c 5e 1a 4d 2b INPUT 3c 5e 1a 4d 2b LINK SW17 20dB ATTENUATION SW18 20dB ATTENUATION LED CONTROL SW13 8KHz HIGH CUT 2 1 3 OUTPUT T3 SW16 PHASE SW15 GND LIFT SW14 20dB gain CH3 2 1 3 4 CN...

Page 6: ...31 10P R86 220K R82 11K R89 11K C28 47P D18 4148 C32 47 25V VCC CH1 D17 4148 R85 1K 8 4 U12C 2068M D16 4148 D20 4148 D19 4148 R84 47K5 R83 47K5 VCC CH1 C29 470 10V C34 1 50V VCC CH1 VCC CH1 VCC CH1 TR...

Page 7: ...9 10 11 12 CN10 12P 2 0 RED LINE VCC CH1 1 4 2 3 5 T3 OT DI1 R11 47R L3 220uH R12 33R 2 1 3 4 CN8 XLR 3MALE R15 4K7 C18 102P TR3 78L24 C11 47 50V C12 220 50V D9 4148 D11 4148 D10 4148 D12 4148 VCC CH...

Page 8: ...Drawn By Sheet Revision Model No 28 Oct 2002 TASY J S DI4 II Wiring Diagram 1 1 of A4 OT DI1 DI4PU AC IN GND LOOP TRANSFORMER PT DI4 110V 220V RED BLUE LED PWR SW CN10 OT DI1 CN7 OT DI1 CN4 OT DI1 CN3...

Page 9: ...PCB DI4FP Top Layer PCB DI4FP Top Solder Mask PCB DI4FP Bottom Layer PCB DI4FP Bottom Solder Mask 6 PCB Layout 7...

Page 10: ...PCB DI4FP Bottom Overlay PCB DI4FP Top Overlay PCB DI4FP Drill Drawing Plots Hole Size Hole Count 24mil 0 6mm 308 31mil 0 8mm 392 35mil 0 9mm 48 126mil 3 2mm 8 Totals 756 8...

Page 11: ...DI4FP PCB LAYOUT PCB DI4PU Top Overlay PCB DI4PU Top Layer PCB DI4PU Top Solder Mask 9...

Page 12: ...PCB DI4PU Bottom Overlay PCB DI4PU Bottom Layer PCB DI4PU Bottom Solder Mask 10...

Page 13: ...PCB DI4PU Drill Drawing Plots Hole Size Hole Count 24mil 0 6mm 303 31mil 0 8mm 80 35mil 0 9mm 64 39mil 1 0mm 16 47mil 1 2mm 6 55mil 1 4mm 6 59mil 1 5mm 1 63mil 1 6mm 21 110mil 2 8mm 2 Totals 499 11...

Page 14: ...T PCB DI4IN Top Layer PCB DI4IN Top Solder Mask PCB DI4IN Top Overlay PCB DI4IN Bottom Layer PCB DI4IN Bottom Solder Mask PCB DI4IN Drill Drawing Plots Hole Size Hole Count 24mil 0 6mm 2 87mil 2 2mm 1...

Page 15: ...13...

Page 16: ...14...

Page 17: ...MODEL No DI 4 II 7 Exploded View Mechanical Parts List 15...

Page 18: ...3 6 2 14 MSCB13 Black screw 3 6 14 15 TD00107 Loop transformer DI4 1 16 NLXC07 Rubber coil 20 60 2tB 2 17 MSCB64 Black screw 4 35 1 18 MI01424 Separating cap 74 5 35 2 DI4 1 19 MFSS04 Spring washer 4...

Page 19: ...rew M4 35 1 PT 0028 MF00061 MIC jack 9 6 13 0 5t 0029 MG00074 screw RS M3 5 1 rear panel 0030 ME00060 MIC jack JY 6351G 02 250 0031 HD00021 glass tube fuse 100mA 250V 5 2 20mm CSA S UL VDE 0032 HC0000...

Page 20: ...hade RS DI4 75 7 35 3 0 8t_V1 3 0045 MC01007 top cover RS DI4 _V1 0 0046 MA07141 panel RS DI4 ALTO_V1 0 0047 MB05642 rear board RS DI4 CHINA_V1 0 0048 MB05641 chassis RS DI4 _V1 0 0049 NB05642 inner c...

Page 21: ...00063 SMD fixed resistor 1 10W 22 5 0603 R104 R23 R50 R77 0016 RD00079 SMD fixed resistor 1 10W 560 5 0603 R12 R39 R66 R93 0017 RD00119 SMD fixed resistor 1 10W 220K 5 0603 R32 R5 R59 R86 0018 RD00123...

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