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Alto L-6, Руководство по обслуживанию, Страница: 2 / 28

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CONTENTS

1.

 

Introduction…………………………………………………………….2

2.

 

Specification…………………………………………………………....3

3.

 

Black Diagram………………………………………………………….4

4.

 

Schematic Diagram……………………………………………………5

5.

 

Wiring Diagram………………………………………………………..10

6.

 

PCB Layout…………………………………………………………….11

7.

 

Test Procedure………………………………………………………..16

8.

 

BOM……………………………………………………………………..22

Содержание L-6

Страница 1: ...www altoproaudio com Version 1 0 MODEL L 6 ...

Страница 2: ...CONTENTS 1 Introduction 2 2 Specification 3 3 Black Diagram 4 4 Schematic Diagram 5 5 Wiring Diagram 10 6 PCB Layout 11 7 Test Procedure 16 8 BOM 22 ...

Страница 3: ...o Input Channels with balanced TRS Jacks Ultra low noise discrete MIC Preamps with 48 V Phantom Power Extremely high headroom offering more dynamic range Balanced Inputs for highest signal integrity Warm natural 3 band EQ on each channels Peak LEDs on each mono Channels and each stereo Channels Adjusts the input sensitivity on each stereo channels 1 AUX Sends per channel for external effects and m...

Страница 4: ...ng 15dB 12kHz Mid bell 12dB 2 5kHz Low shelving 15dB 80Hz Main Mix Section Noise Bus noise Fader 0dB channels muted 100dBr ref 4dBu Fader 0dB all input channels assigned and set to UNITY gain ref 4dBu Max output 22dBu balanced XLR 22dBu unbalanced 1 4 jacks AUX return gain range OFF to 15dB AUX send max out 22dBu DSP section A D and D A converters 24 bit DSP resolution 24bit Type of Vibraflange Fu...

Страница 5: ...T BUS TAPE IN RIGHT 2 TRACK 2 1 3 2TK TO CTRL ROOM 2 1 3 PHONES OUTPUT LEFT METER RIGHT METER 15db 3 BAND EQ 12K 2 5K 80 15db 3c 5e 1a 4d 2b LEFT 3c 5e 1a 4d 2b RIGHT MAIN MIX AUX SEND1 T R S MAIN MIX LEFT T R S MAIN MIX RIGHT T R S CONTROL ROOM OUTPUT LEFT T R S RIGHT T R S PHONES T R S PHONES CONTROL ROOM LEFT TAPE OUT LEVEL AUX RETURN1 T R S RN TN T R S RN TN PAN PHANTOM LINE IN GAIN POWER LO M...

Страница 6: ... 5 6 7 U8B 4580M R189 1M C156 22P R109 1K1 VR6B B50K R73 1K3 MID R100 910R C130 12n M R101 910R C113 33n M C116 33n M C142 12n M C136 18n M C74 47u 25V 80HZ 2 5K R117 10K0 R128 10K0 R248 47K R243 22K 5 6 7 U9B 4580M VR1B W50K C66 47u 25V R202 3K9 R210 36K PGND C155 22P C77 47u 25V LEVEL R119 10K0 R118 10K0 J3 POST PRE PRE CH7 PRE CH8 VR21 B50K R176 4K7 R180 4K7 EQ HI C125 18n M VR8A B50K R91 6K8 V...

Страница 7: ... AUX SEND1 AUX RTN1 L AUX RTN1 R 2TK N L 2TK N R 2TK TO CR R 2TK TO CR L SW4A PS 22E85L SW4B PS 22E85L SW3B PS 22E85L 2TK TO CR R 2TK TO CR L SW3A PS 22E85L 2TK IN L 2TK IN R 5VD L6G 2 4 DGND 8 4 U21C 4580M C215 100n C216 100n 3c 5e 1a 4d 2b X10 JY 6351G 02 250 AUX SEND1 R265 120R R264 120R T R S RN TN 3 2 1 U17A BA15218N 5 6 7 U17B BA15218N C162 22P R144 10K0 R261 120R 3c 5e 1a 4d 2b X9 JY 6351G ...

Страница 8: ...13 U23D LM339 5 4 2 U25A LM339 10 11 13 U25D LM339 LD20 GR LD21 GR LD22 GR LD23 GR LD24 YEL VCC LEFT METER 30 10 4 0 10 18 3 2 1 U22A 4580M R299 100K R301 100K C236 47u 25V PGND TR21 HR VCC D1A DA204K D1B DA204K TR22 HR R273 120R R52 470R R53 470R R151 10K0 PGND 5 6 7 U22B 4580M R300 100K R302 100K C237 47u 25V PGND L METER R METER 3 12 U24E LM339 3 12 U25E LM339 3 12 U23E LM339 8 4 U22C 4580M C21...

Страница 9: ... AUX SEND1 1 2 3 4 5 6 7 8 9 10 11 12 13 14 15 16 CN2 HEADER 8X2 1 2 3 4 COM EN1 SDB161PVB15FS 1 2 3 4 5 6 7 8 AR1 680R 4 DGND 5VD GND R312 220R R311 7K5 LD8 RED 8 4 U29C 4580M 8 4 U31C 4580M 8 4 U30C 4580M C224 100n C225 100n C226 100n C227 100n VCC VCC C229 100n 5VD DGND C249 10uF UDASP IN OUT SECTION JP1 PGND 1 2 4 8 3 2 1 U32A LM393 5 6 7 U32B LM393 R185 4K7 VCC R279 1K C222 100n R192 1M R310 ...

Страница 10: ......

Страница 11: ...P 1 2 3 CN1 2P 2 5 L6PWR L6G 48V GND GND 15V GND 15V 5V GND 48V GND GND 15V GND 15V 5V GND ADAPTOR TG00077 AC 110V 220V AC INPUT HA00027 power switch L6PIN Sch Titel Size File Date Drawn By Sheet Revision Model No 8 Sep 2003 J S TASY L 6 Wiring Diagram 1 1 of ALTO L 6 VER030710 A4 L 6 ...

Страница 12: ...PCB L6G ...

Страница 13: ...Bottom Overlay ...

Страница 14: ...Top Overlay ...

Страница 15: ...PCB L6G Top Layer ...

Страница 16: ......

Страница 17: ...F c Input the signal from balanced sockets MIC 1 MIC 2 input the signal from t unbalanced sockets LINE IN 3 4 LINE5 6 d Input the signal to the unbalanced AUX RENTURN sockets separately test the balanced output LEFT RIGHT of MAIN MIX OUTPUT which should be 5dBu 1dB THD N 0 003 e Insert the RCA plug to L R of TAPE IN separately First press 2TK TO MIX button test the unbalanced outputs LEFT RIGHT of...

Страница 18: ... And test all PEAK LEDs from CH 1 to CH6 3 frequency response test When Test the inputs of LINE 1 LINE 2 LINE 3 LINE 4 LINE 5 LINE 6 separately as follows the frequency response curve of MAIN MIX OUTPUT LEFT RIGHT the preset of all knobs are the same as function test step 2 b a Open S8RESP1 atl test procedure press and release the LOW CUT switch test the frequency response curve of LINE 1 LINE 2 L...

Страница 19: ...rn EQ MID to the MAX and the MIN EQ HI LOW at the middle test the frequency response the frequency response curve is shown as follows please refer to the following figure Audio Precision 07 21 03 15 54 30 30 20 25 20 15 10 5 0 5 10 15 d B m 20 20k 50 100 200 500 1k 2k 5k 10k Hz Audio Precision 07 21 03 15 52 05 30 20 25 20 15 10 5 0 5 10 15 d B m 20 20k 50 100 200 500 1k 2k 5k 10k Hz ...

Страница 20: ... output is 15dBu 3dB 4 test DSP a Input the signal from MIC1 output the signal from MAIN MIX OUTPUT turn AUX RTN2 DFX clockwise to the MAX turn PRESETS and VARATIONS knobs the signal will be processed by DSP if the level of the signal is over high PEAK LED will be illuminated to red press DFX MUTE button Bypass the signal press the footswitch which is connected to DFX FOOSWITCH the signal will get...

Страница 21: ......

Страница 22: ...5 14mm 5 15 MG00363 Copper pillar M 0P0 5 14mm 3 16 HI00019 Power switch 4P MSR 8 1 17 HC00527 Connector SCMI405MOS3N 1 18 MJ01189 Barrier board L 8 1 19 NI02620 Insulated board 1 86 5 53 L 8 1 20 HK03893 PCB P 313123 DIP 1 8 1 21 NI00863 Insulation bean TO220B 4 22 MG00020 Screw M3 8 4 23 MB02877 Rear panel L 6 ALTO 1 24 HK01591 PCB P 16 PWR 1 25 MJ01145 Heat sink RD 82 1 26 MF00037 Color washer ...

Страница 23: ...39 sleeve φ2 5 1000mm 18 NI00251 sleeve φ4 12mm 19 NI00248 sleeve φ4 1000mm 20 MG00304 copper pillar M3 14 0 5PH 21 MG00363 copper pillar M3 14 0 5PH 22 NI01863 key RS φ5 5 W10 7 5 23 NI02083 knob φ10 5 18mm 24 NI02633 knob φ10 5 18 25 NI02082 knob φ10 5 18mm 26 NI02714 knob φ10 13 5mm 27 NI00826 knob φ12 18mm double color 28 NI02386 knob φ14 13mm 29 MG00041 screw M3 6 30 MG00061 screw M3 10 31 ME...

Страница 24: ... 60M 1t 66 NI00863 plastic washer TO220B 67 MG00020 screw M3 8 68 HK02233 PC board P L6G DIP 69 RA00185 fixed resistor 1 4W 120Ω M type R259 R260 R261 R266 R273 R284 70 RA00174 fixed resistor 1 4W 47Ω M type R280 R281 71 CB00011 electrolytic capacitor 2 2uF 50V φ5 11mm C145 C146 C147 C148 72 CB00018 electrolytic capacitor 4 7uF 25V φ4 7mm C240 C241 C242 C250 C251 73 CB00024 electrolytic capacitor ...

Страница 25: ...10KZ SAS1 30F VR12 VR13 95 HI00195 rotary switch SDB161PVB15 5F 1 4 16 16PC EN1 96 HC00126 balance MIC jack JY 5042 030G female plug 180 X1 X2 97 HC00125 MIC jack JY 6351G 02 250 X3 X4 X5 X6 X7 X8 X9 X10 X11 X12 X13 X14 X15 X16 98 HC00403 RCA jack SCP6873NS3232T2 4P X17 99 SB00175 transistor 2SA970 BL TE2 T TR1 TR2 TR3 TR4 100 SD00007 integrated circuit BA15218N M5218L substitute U16 U17 101 RA005...

Страница 26: ... 5 0603 R315 136 RD00125 SMD fixed resistor 1 10W 1 0MΩ 5 0603 R186 R187 R188 R189 R190 R191 R192 137 RD00201 SMD precise resistor 1 10W 1 50KΩ 1 0603 R15 R16 R17 R18 R195 R196 R197 R198 138 RD00204 SMD precise resistor 1 10W 2 49KΩ 1 0603 R34 R35 R36 R37 R38 R39 R40 R41 R42 R43 R44 R45 R46 R47 139 RD00210 SMD precise resistor 1 10W 5 11KΩ 1 0603 R54 R55 R56 R57 R58 R59 R60 R61 R232 R233 140 RD003...

Страница 27: ...aste SJ 617 161 AC00002 solder wire 63 37 162 HK01591 PC board P L6PWR 163 HB00982 PCB L6PWR_VER040416 164 RA00242 fixed resistor 1 4W 10KΩ M type R2 165 RA00159 fixed resistor 1 4W 10Ω M type R3 166 SA00094 rectifier diode 1N4002 100V D1 D2 D3 D4 D5 D6 D7 D8 D9 D10 D11 D12 D13 D14 167 SA00127 zener diode 1 2W 47V 1N5261 ZD1 168 RA00250 fixed resistor 1 4W 20KΩ M type R4 169 RA00301 fixed resistor...

Страница 28: ... 201 RD00073 SMD fixed resistor 1 10W 220Ω 5 0603 R2 202 RD00085 SMD fixed resistor 1 10W 1 5KΩ 5 0603 R10 R13 R9 R12 R5 R8 R7 R11 203 RD00101 SMD fixed resistor 1 10W 10KΩ 5 0603 R18 R6 R16 204 RD00125 SMD fixed resistor 1 10W 1 0MΩ 5 0603 R4 205 RE00010 SMD resistor networks 1 16W 2 2KΩ 4 5 8P 0603 AR1 AR2 206 SE00011 SMD rectifier diode RLS4148 0 5A LL 34 D1 207 SG00016 SMD integrated circuit U...

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