User manual
CLKTCDSeriesUserManual–Rev.2.0.1Page33
Displayedtime[local]isoffasmallamount.
Possiblereasons/solutions:
1. Perception/recognitionresponsetime.Theaveragehumanabilitytovisuallyperceiveand
recognizetimesynchronizationand/orinstantaneouschangebetweentwovisuallyseparated
systemsislimitedduetothemovementoftheeyesandthedelayedresponsetoprocessthe
data.Toreducethiseffect:
• Placeadigitaldisplayadjacenttotheclockyouaretryingtoverifythetimeon.
• Viewtheclocksfromapositionthatwillavoideyemovements.
• Ensurethatbothclocksarelockedtoanaccuratetimecodereference.
• Ensurethatbothunitshavethesameoffsetsettingsfortimezoneand/orDST.
2. CLKTCD‐Setconfigurationutility’sscreendisplayisaGUI(GraphicalUserInterface)thatisnot
beingrunatthehighestprioritylevelforthesystem.Therewilllikelybeadelayinprocessingthe
dataandupdatingthescreen,thereforeitshouldnotbeconsideredanaccuratereference.
3. EnsurethatyouarenotusingDrop‐FrameSMPTEtimecode.Drop‐Frametimecodeisnot
supported.Accuratetimecannotbeguaranteedwithdrop‐frametimecode.
4. TheclockhandshavebeenincorrectlycalibratedwitheitherthecalibrationbuttonsorCLKTCD‐
Setconfigurationutility.Seethecalibrationprocedurefordetailsonhowtorecalibratethehands.
DSTisnotproperlynegotiated.
ThedateshowninthestatuswindowofCLKTCD‐Setconfigurationutilityisalways01/01/2000.
Possiblereasons/solutions:
1. Yourtimecodereferenceisnotprovidingdate/yearinformation.TheDSTadjustmentwillnot
workunlessvaliddateinformationisprovided.Verifythatyourtimecodereferencehaseither
dateencodingtotheLeitchstandardforSMPTEtimecodeoryear/dateencodingtotheIEEE1344
specificationforIRIG‐B/B1timecode.
2. TheTCcontrolDIPswitchesS2‐1andS2‐2havebothbeensettooffand/orthetimecodedate
encodinghasbeendisabledintheCLKTCD‐Setconfigurationutility.
3. YourtimecodereferencealreadyprovidestheDSTadjustment.TheDSTadjustmentinthe
CLKTCDshouldbedisabled.
4. YouhavedisabledtheDSTsettingortheincorrectDSTsettingwasenabled.TheCLKTCDhasDIP
switchesforenablingvariousmodesofDSTordi
sablingtheDSToption.InadditiontotheDIP
switches,theCLKTCD‐SetconfigurationutilitymaybeusedtosettheDSTsettingsaswellasall
configurationsettingsoftheclock.IftheCLKTCD‐Setconfigurationutilityisused,itwillover‐ride
theDIPswit
chsettings.
TheclockhandsarenotmovingandtheredstatusLEDisoff.
PossibleReasons/solutions:
1. Theclockdoesnothavepowerapplied.
2. TheRun/SetswitchisintheSETpositionortheCLKTCD‐Setconfigurationutilityisbeingused.
3. Theinternalpowersupplyorthemotor/motordrivehasfailed.
TherearenouserserviceablepartsinsidetheCLKNTDanalogclock.
PleasecontactMasterclock,Inc.ifyourequireservicingorrepair.