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Инструкция обслуживания Manley Labs Langevin Dual Vocal Combo

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Summary
  • Manley Labs Langevin Dual Vocal Combo - page 1

    MANLEY LABORA TORIES, INC. OWNER'S MANUAL LANGEVIN DUAL V OCAL COMBO MANUFACTURED BY: MANLEY LABORATORIES, INC. 13880 MAGNOLIA AVE. CHINO, CA. 91710 USA TEL: (909) 627-4256 FAX: (909) 628-2482 email:emanley@manleylabs.com http://www.manleylabs.com ...

  • Manley Labs Langevin Dual Vocal Combo - page 2

    CONTENTS INTRODUCTION 3 FRONT PANEL 4, 5 BACK PANEL 6 MIC PRE BASICS 7 CONNECTING YOUR PREAMPLIFIER 8, 9 OPERATION NOTES 10, 11 SPECIFICATIONS 12 TROUBLESHOOTING 13, 14 INTERNAL ADJUSTMENTS 15 REPLACING FUSES AND METER LAMPS 16 MAINS CONNECTIONS 17 WARRANTY 18 WARRANTY REGISTRATION 19 APPENDIX A: WIRING YOUR OWN CABLES 20 APPENDIX B: TEMPLATE FOR S ...

  • Manley Labs Langevin Dual Vocal Combo - page 3

    INTRODUCTION THANK YOU!... for choosing the Langevin Dual Vocal Combo. Manley Labs bought all the rights to the Langevin name and circuits in 1992. Manley uses the Langevin name for its solid state products including versions of an all discrete Pultec and Electro-Optical Limiter, and Mic Preamp. The Dual Vocal Combo is the result of a suggestion to ...

  • Manley Labs Langevin Dual Vocal Combo - page 4

    4 OFF OFF POWER POWER ON ON IN IN BYPASS BYPASS INPUT INPUT H.F. H.F. L.F. L.F. 12 KHz 12 KHz EQ IN EQ IN 80 80 Hz Hz 80 80 Hz Hz EQ IN EQ IN 12 KHz 12 KHz L.F. L.F. H.F. H.F. INPUT INPUT 40 40 Hz Hz ATTENUATE ATTENUATE 8 8 KHz KHz -10 -10 +10 +10 +10 +10 -10 -10 PHANTOM PHANTOM -10 -10 +10 +10 +10 +10 -10 -10 8 8 KHz KHz 40 40 Hz Hz ATTENUATE ATTE ...

  • Manley Labs Langevin Dual Vocal Combo - page 5

    J) DIRECT INPUT. This is for plugging in an electric guitar, bass, synth, etc into the Dual Vocal Combo. The input impedance is high (150 kOhms) appropriate for these instruments and there should be plenty of gain available. Electric guitars and basses may need a fair amount of H.F. Boost to sound comparable to an amp because there happens to be a ...

  • Manley Labs Langevin Dual Vocal Combo - page 6

    LINE OUT LINE OUT BALANCED BALANCED email: emanley@manleylabs.com email: emanley@manleylabs.com PHONE (909) 627-4256 PHONE (909) 627-4256 FAX FAX (909) 628-2482 (909) 628-2482 13880 MAGNOLIA AVE., CHINO, CA 91710 13880 MAGNOLIA AVE., CHINO, CA 91710 MANLEY LABORATORIES MANLEY LABORATORIES CHANNEL 2 CHANNEL 2 IN IN LIMITER LIMITER MIC IN LINE OUT LI ...

  • Manley Labs Langevin Dual Vocal Combo - page 7

    MIC PRE BASICS 7 This Microphone Preamp, like most mic preamps, is pretty easy to use. First we can discuss why outboard mic pre's have become "a must have item" in almost every studio even though your console probably has a bunch of them and that manufacturer claims that they are really great and you don't need outboard mic pre ...

  • Manley Labs Langevin Dual Vocal Combo - page 8

    CONNECTING YOUR PREAMPLIFIER 8 Easy - Connect the mic to the Microphone Input XLR, then connect the Line Output to your tape machine or console. Read on, there are some things to consider. On the back panel are female XLR's labelled MIC INPUT A and MIC INPUT B. The signal from the MICROPHONES get plugged in here. Here are a few warnings and su ...

  • Manley Labs Langevin Dual Vocal Combo - page 9

    9 Reversing the polarity or phase is often needed when two or more mics are picking up the same source. For example it would be needed when one mics the top and bottom of a snare - one skin is going towards one mic and the other skin is going away from the other mic. If one signal is not "reversed" then you lose lows. Polarity reverse can ...

  • Manley Labs Langevin Dual Vocal Combo - page 10

    OPERA TION NOTES The Langevin Electo-Optical Limiter follows certain traits and traditions established by the UREI LA-3A and similar levelling amplifiers. These traits can be divided into two aspects - electronic and operation. The electronic concept is simple and rather clean. Use the audio to light up LEDs which shine onto photo-resistors. These ...

  • Manley Labs Langevin Dual Vocal Combo - page 11

    The slope or ratio is also difficult to simulate. The initial ratio is low and becomes higher with more gain reduction until the leds light up fully and further reduction is not easy. This upper limit of reduction is in the area of 20 dB or at the bottom of the GR meter where the ratio becomes low again but this would be a severe setting that few e ...

  • Manley Labs Langevin Dual Vocal Combo - page 12

    SPECIFICA TIONS 12 Frequency Response 20 Hz to 20 KHz (+/- 1 dB) Mic Pre 20 Hz to 50 KHz (+/- .5 dB) Limiter THD & Noise .075% (1Khz @ +4 dBm) Mic Pre .06% (1Khz @ +4 dBm) Limiter Signal to Noise ratio 107 dB Limiter Headroom 26 dB (ref +4 dBv) Limiter Maximum Output +30 dBv (75 volts p to p) Limiter Maximum Input (with Input at max) 70 mV mic, ...

  • Manley Labs Langevin Dual Vocal Combo - page 13

    TROUBLE-SHOOTING There are a number of possible symptoms of something not quite right, some may be interfacing, others we will touch on as well. The Dual Vocal Combo has a variety of balanced and unbalanced inputs and outputs optimised for typical standards and most problems are due to the right cable in the wrong jack. However if you suspect a pro ...

  • Manley Labs Langevin Dual Vocal Combo - page 14

    HUM - Let's assume it knows the words. Once again - several possibilities - several cures. Most likely it is a ground loop. The two most common procedures are: try a 3 pin to 2 pin AC adapter (about a dollar at the hardware store) which is better than messing up the power cable by bending the ground pin until it breaks off. Method two - cuttin ...

  • Manley Labs Langevin Dual Vocal Combo - page 15

    INTERNAL ADJUSTMENTS 1 7 4 5 9 10 6 8 3 1) +36 Volt DC adjust with meter from ground to resistor marked by arrow. Check this first and adjust if needed. It is the power supply regulator adjustment. Now for the audio .... You will have to start out by setting front panel controls to these settings. BYPASS mode, SEP ( LINK OFF ), REDUCTION controls c ...

  • Manley Labs Langevin Dual Vocal Combo - page 16

    REPLACING FUSES & METER LAMPS Changing the fuse is easy and can be done without any tools and while the DVC is still in a rack. 1) Disconnect the IEC AC mains for safety 2) Rotate the fuse cap anti-clockwise 1/4 turn 3) Remove the fuse and replace it with a new 1 AMP, 250 VOLT, AGC1 type fuse 4) Reconnect the IEC AC mains, turn on the power and ...

  • Manley Labs Langevin Dual Vocal Combo - page 17

    MAINS CONNECTIONS Your unit has been factory set to the correct mains voltage for your country. The voltage setting is marked on the serial badge, located on the rear panel. Check that this complies with your local supply. The voltage changeover switch is located inside the unit in the middle of the PCB near the power transformer. To change the vol ...

  • Manley Labs Langevin Dual Vocal Combo - page 18

    W ARRANTY All Manley Laboratories equipment is covered by a limited warranty against defects in materials and workmanship for a period of 90 days from date of purchase to the original purchaser only. A further optional limited 5 year warranty is available to the original purchaser upon proper registration of ownership within 30 days of date of firs ...

  • Manley Labs Langevin Dual Vocal Combo - page 19

    W ARRANTY REGISTRA TION We ask that you please fill out this registration form and mail the bottom half to: MANLEY LABORATORIES REGISTRATION DEPARTMENT 13880 MAGNOLIA AVE. CHINO CA, 91710 or FAX to: (909) 628-2482 or email service@manleylabs.com with the info from below and a note that this is for warranty registration. There is also a service form ...

  • Manley Labs Langevin Dual Vocal Combo - page 20

    OFF OFF POWER POWER ON ON IN IN BYPASS BYPASS INPUT INPUT H.F. H.F. L.F. L.F. 12 KHz 12 KHz EQ IN EQ IN 80 80 Hz Hz 80 80 Hz Hz EQ IN EQ IN 12 KHz 12 KHz L.F. L.F. H.F. H.F. INPUT INPUT 40 40 Hz Hz ATTENUATE ATTENUATE 8 8 KHz KHz -10 -10 +10 +10 +10 +10 -10 -10 PHANTOM PHANTOM -10 -10 +10 +10 +10 +10 -10 -10 8 8 KHz KHz 40 40 Hz Hz ATTENUATE ATTENU ...

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