Manley Labs Power Supply 20 BIT DIGITAL TO ANALOG CONVERTER User Manual

MANLEY  
LABORATORIES, INC.  
OWNER'SMANUAL  
20 BIT DIGITAL TO ANALOG  
CONVERTER  
 
INTRODUCTION  
THANK YOU!...  
for choosing the Langevin Digital To Analog Converter. The Langevin Digital To Analog  
Converter utilizes only the most modern componentry including the decidedly best 20 BIT Ultra  
Analog (TM) system, precision 1% metal film resistors, and highly regulated power rails.  
Please take a few moments to read through this manual carefully as it contains information essential  
to proper operation of this unit.  
Thank you again, and please enjoy!  
GENERAL NOTES  
LOCATION & VENTILATION  
The Langevin DAC must be installed in a stable location with ample ventilation. It is recommended,  
if this unit is rack mounted, that you allow enough clearance on the top and bottom of the unit such  
that a constant flow of air can flow through the ventilation vents.  
WATER&MOISTURE  
As with any electrical equipment, this equipment should not be used near water or moisture. If  
liquid enters the preamplifier, it must be immediately returned to your deal for servicing.  
SERVICING  
The user should not attempt to service this unit beyond that described in the owner's manual. Refer  
all servicing to Manley Laboratories.  
WARNING!  
!
TO PREVENT THE RISK OF ELECTRIC SHOCK  
DO NOT OPEN THE CABINET  
REFER SERVICING TO  
QUALIFIED PERSONEL  
 
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.  
GREEN/YELLOW  
BLUE  
BROWN  
EARTH  
NEUTRAL  
LIVE  
terminal  
terminal  
terminal  
As the colours of the wires in the mains lead may not correspond with the coloured marking identifying  
the terminals in your plug proceed as follows;  
The wire which is coloured GREEN/YELLOW must be connected to the terminal in the plug which is  
marked by the letter E or by the safety earth symbol or coloured GREEN or GREEN and YELLOW.  
The wire which is coloured BLUE must be connected to the terminal in the plug which is marked by  
the letter N or coloured BLACK.  
The wire which is coloured BROWN must be connected to the terminal in the plug which is marked by  
the letter L or coloured RED.  
DO NOT CONNECT/SWITCH ON THE MAINS SUPPLY UNTIL ALL OTHER CONNEC-  
TIONS HAVE BEEN MADE.  
 
FRONT PANEL  
SET LEVE  
0º
POWER ON  
L
R
OFF  
20 BIT Ultra Analog  
D TO A CONVERTER  
180º  
A
B
C D  
A
GAIN SET  
Factory set for a total gain of 8 dB, this control can be adjusted from  
as little as 3dB of gain to as much as 10dB To increase the volume  
of the Left channel turn control counter-clock-wise from center  
position. To increase the volume of the Right channel turn control  
clock-wise from center position.  
B
C
D
PHASE SELECT  
POWER LED  
Select between 0 and 180 degrees phase.  
Illuminates when unit is powered.  
POWER SWITCH Switch up to power ON the unit, down to power OFF the unit.  
 
REAR PANEL  
FUSE  
CIRCUIT  
GROUND  
CHASSIS  
A
B
D
C
E
F
G
H
I
A
B
IEC MAINS SOCKET  
Accepts standard 50/60 Hz AC mains voltage.  
DAISY CHAIN (If provided)  
The incoming AC mains voltage is paralleled via this IEC  
plug and can power another unit simultaneously.  
C
D
FUSE HOLDER  
To remove the fuse, push and turn the fuse holder cap. A  
1 to 3 Amp SLO-BLO fuse is recommended.  
CIRCUIT, CHASSIS GROUND TERMINALS Grounding terminal for both chassis and circuit. Connect  
together to link circuit and chassis grounds, or remove to  
help isolate ground loops.  
E
F
MAIN OUTPUT (XLR)  
MAIN OUTPUT (RCA)  
Pin 2 hot, Pin 1&3 Ground unbalanced XLR output.  
LEFT (white) and RIGHT (red) amplified outputs of  
selected input,paralled output XLR Outputs.  
G
H
I
S/PDIF INPUT  
Digital input  
S/PDIF or AES SELECT SWITCH  
AES INPUT  
Selects between S/PDIF and AES Digital inputs  
Digital input (For digital source equipped with AES  
outputs.  
 
OPERATIONAL NOTES  
SWITCHINGON  
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. When powering up or down this unit, it is recommended to  
have the LANGEVIN DAC muted as to avoid amplifying powering up/down noises which occur as  
the digital receiver "loses clock" with the digital source. Also, it is recommended to mute the  
LANGEVIN DAC while changing digital input connections or powering up or down digital sources.  
Failure to abide by the above recommendations can result in damage to your loudspeakers if these  
noises are amplified to excessive levels.  
CHANGING THE GAIN  
Your LANGEVIN DAC has been factory calibrated using precise test equipment for 10dBs of equal  
gain in both channels. If you wish to change this setting, we recommend using a reference test  
compact disc and either an oscilloscope if available and/or an AC / VTTM / or DMM meter to  
measure levels at the output of the DAC. Remember, never play sine wave test tones at high levels  
through your loudspeakers.  
 
SPECIFICATIONS  
 
WARRANTY  
All Manley Laboratories equipment is covered by a limited warranty against defects in materials  
andworkmanshipforaperiodof90daysfromdateofpurchasetotheoriginalpurchaseronly.A  
furtheroptionallimited5yearwarrantyisavailabletotheoriginalpurchaseruponproper  
registrationofownershipwithin30daysofdateoffirstpurchase.  
Properregistrationismadebyfillingoutandreturningtothefactorythewarrantycardattachedto  
this general warranty statement, along with a copy of the original sales receipt as proof of the  
originaldateofpurchase. Only1cardisissuedwitheachunit, andtheserialnumberisalready  
recordedonit.  
Ifthewarrantyregistrationcardhasalreadybeenremovedthenthisisnotanewunit, andis  
therefore not warranted by the factory. If you believe this to be a new unit then please contact the  
factorywiththedetailsofpurchase.  
Thiswarrantyisprovidedbythedealerwheretheunitwaspurchased,andbyManleyLaboratories,  
Inc. Underthetermsofthewarrantydefectivepartswillberepairedorreplacedwithoutcharge,  
exceptingthecostoftubes.Nowarrantyisofferedontubes,unless:  
1.aManleyLaboratoriespreamplifierisusedwithaManleyLaboratories amplifier,and  
2. thewarrantyregistrationcardisfilledout.  
In such a case a 6 month warranty on tubes is available with the correct recording of the serial  
numberofthepreamplifieronyourwarrantyregistrationcard.  
IfaManleyLaboratories productfailstomeettheabovewarranty,thenthepurchaser'ssole  
remedyshallbetoreturntheproducttoManleyLaboratories, wherethedefectwillberepaired  
withoutchargeforpartsandlabour.Theproductwillthenbereturnedviaprepaid,insuredfreight,  
methodandcarriertobedeterminedsolelybyManleyLaboratories.Allreturnstothefactorymust  
beintheoriginalpacking,(newpackingwillbesuppliedfornochargeifneeded),accompaniedby  
awrittendescriptionofthedefect,andmustbeshippedtoManleyLaboratoriesviainsuredfreight  
atthecustomer'sownexpense.Chargesforunauthorizedserviceandtransportationcostsarenot  
reimbursableunderthiswarranty,andallwarrantees,expressorimplied,becomenullandvoid  
wheretheproducthasbeendamagedbymisuse,accident,neglect,modification,tamperingor  
unauthorizedalterationbyanyoneotherthanManleyLaboratories.  
Thewarrantorassumesnoliabilityforpropertydamageoranyotherincidentalorconsequental  
damagewhatsoeverwhichmayresultfromfailureofthisproduct.Anyandallwarranteesof  
merchantabilityandfitnessimpliedbylawarelimitedtothedurationoftheexpressedwarranty.  
AllwarranteesapplyonlytoManleyLaboratoriesproductspurchasedandusedintheUSA.  
Somestatesdonotallowlimitationsonhowlonganimpliedwarrantylasts, sotheabove  
limitations may not apply to you. Some states do not allow the exclusion or limitation of incidental  
orconsequentialdamges,sotheaboveexclusionmaynotapplytoyou.  
Thiswarrantygivesyouspecificlegalrightsandyoumayalsohaveotherrightswhichvaryfrom  
state to state.  
 
WARRANTYREGISTRATION  
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 warrenty 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 to use Manley Laboratories.  
MODEL ____________________ SERIAL No. ______________________  
PURCHASE DATE ______________ SUPPLIER ______________________  
--------------------------------------------------------------------------------------------------------  
PLEASE DETACH THIS PORTION AND SEND IT TO MANLEY LABORATORIES  
MODEL ____________________  
SERIAL No. ______________________  
PURCHASE DATE ______________ SUPPLIER _______________________  
NAME OF OWNER _______________________________________________  
ADDRESS ______________________________________________________  
CITY, STATE, ZIP________________________________________________  
TELEPHONE NUMBER ___________________________________________  
Serial #'s of Associated Manley Laboratories Equipment ___________________  
________________________________________________________________  
 
NOTES  
 

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