Specifications

Maxiva ULX Series
November 11, 2013
5‐15
888‐2628‐300 WARNING:Disconnectprimarypowerpriortoservicing.
Copyright©2013,HarrisBroadcast
STEP 9 Allowthetransmittertorunforseveralminutestogivetheamplifierstimetowarm
upandstabilize.
STEP 10 Verifythatthesyncratioiscorrectforthedesiredoperatingsystem.Thesynclevelis
setintheM2Xexciter.TypicalsynclevelforPALis300mVand40IREunitsforNTSC.
Readjustoutputpowerifsync.levelis readjusted.
STEP 11 PressthemanualbuttonontheTCUandholditinfor5seconds.
STEP 12 Verifythattheoutputpowerisstableandatthedesiredpeakvisualoutputpower
level(dividethisaveragepowerreading,fromthepowermeter,byoneofthefactors
in
Section5.9.1onpage5‐12,toobtainpeakvalueofthevisioncarrier).
STEP 13 Disconnectthepowermeterprobefromtheforwardcouplerport,thenreconnect
forwardsamplecabletocoupler.
Note
The detector voltage values are provided on the Sys Pwr Calibrate screen shown in Figure 5-9. They are
in the column to the right labelled Detector. The Sys Vis (kW) detector voltage level should be between 3.0
and 3.2V at full rated power. Operating in this range insures measurement accuracy (detector’s linear
region). If the detected levels are too high, attenuation must be added at the coupler port to reduce the
detected voltage level.
STEP 14 AccesstheSysPwrCalibratescreenpressSystem>SystemService>System
Setup>SystemPowerCalibrateshowninFigure5‐9.
Figure 5-9 System Setup and System Power Meter Calibration Screens (Analog)
STEP 15 ClickonthecorrespondingwindowforSysVispower,openinganumericentrybox.
STEP 16 Enterthevalue(inpeakkW)determinedinstepSTEP12onpage5‐15above.
STEP 17 ClickonDONEtostorethechanges,orCANCELtoignoreallchangesmade.
STEP 18 PresstheAutoPowerControlbuttontoenableALC.
STEP 19 Enablethesound(aural)carrierviatheApexM2Xcontrolscreens.
STEP 20 Restorenormalvideoprograminputsignal.
STEP 21 Endofprocedure.
5.9.2.2 CalibrateCabinetForwardVisualPower
STEP 1 BeforeperformingcabinetcalibrationconfirmthatthecabinetALCvoltageiswithin
therangedescribedin
Section5.8.1onpage5‐11.
STEP 2 Repeatthepreviousprocedureusingtheinternalcabinetforward(incident)coupler
sample,shownin
Figure5‐11onpage5‐16,enteringthedatainthecorrespondingPA
cabinetcalibratewindowshowninFigure5‐10.Thisscreenisaccessedbypressing
System>SystemService>CabinetSetup>CabinetPowerCalibrate.