MANLEY LABORATORIES, INC.
CONTENTS SECTION PAGE INTRODUCTION 3 MAINS CONNECTIONS 4 FRONT PANEL 5 REAR PANEL 6 OPERATIONAL NOTES 7 WARRANTY 8 WARRANTY REGISTRATION 9 NOTES 10
INTRODUCTION THANK YOU!... for choosing the Manley Laboratories Langevin Line Preamplifier. The Langevin Line Preamplifier, designed in ALL-DISCRETE CLASS A CIRCUITRY, utilizes only the best modern componentry, such as conductive plastic potentiometers, military-grade sealed gold contact switches, and precision 1% metal film resistors.
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. Export units for certain markets have a moulded mains plug fitted to comply with local requirements. If your unit does not have a plug fitted the coloured wires should be connected to the appropriate plug terminals in accordance with the following code.
FRONT PANEL BALANCE VOLUME AUX CD TAPE TUNER VIDEO PROGRAM B ON OFF MUTE ALL-DISCRETE PREAMPLIFIER A POWER C D E F A BALANCE Provides 10 dB of swing between left and right channels. To increase the volume of th Left channel turn control counter-clockwise from center position. To increase the volume of the Right channel turn control clock-wise from ceter position. B VOLUME Continuously variable input attenuator. Simultaneously varies the input level to both channels of the selected signal.
REAR PANEL FUSE O U T P U T CIRCUIT GROUND CHASSIS A B C D E R E C V I D E O O U T F T U N E R G T A P E H A U X C D I J K A IEC MAINS SOCKET Accepts standard 50/60 Hz AC mains voltage. B DAISY CHAIN (If provided) The incoming AC mains voltage is paralleled via this IEC plug and can power another unit simultaneously. C FUSE HOLDER To remove the fuse, push and turn the fuse holder cap. A 1 to 3 Amp SLO-BLO fuse is recommended.
OPERATIONAL NOTES SWITCHING ON The power switch is located on the right hand corner of the front panel. Flip the switch up to turn on the unit and down to turn off the unit. GAIN ADJUSTMENT Your Langevin preamplifier has been factory calibrated for optimal gain of 15 dB in the line stage. Should you need to change the gain, we recommend using quality test equipment which should include an oscillator, VTTM, oscilloscope, or suitable DMM.
SPECIFICATIONS
WARRANTY 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 first purchase.
WARRANTY REGISTRATION We ask that you please fill out this registration form and send the bottom half to: MANLEY LABORATORIES REGISTRATION DEPARTMENT 13880 MAGNOLIA AVE. CHINO CA, 91710 Registration entitles you to product support, full warranty benefits, and notice of product enhancements and upgrades. You MUST complete and return the following to validate your warranty and registration. Thank you again for choosing Langevin. MODEL ____________________ SERIAL No.
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