Specifications

Section-3 Operation
October 17, 2013
3‐22
Copyright©2013,HarrisBroadcast
WARNING:Disconnectprimarypower priortoservicing. 888‐2693‐004
Figure 3-23 LPU PA’s

Table3‐13XMTRHome>PowerAmpsScreen
Field Explanations
PABlk#
IndicatesselectedPABnumber.AdditionalPABsorFanscanbeselectedusingthesoftkeys
atthebottomofthescreen.
Id#FETDraincurrent.Typicallywillnotexceed7amps.
Temp In dicatestemperatureofPApallet.
PS IndicatesPSstatus.
48VDC Indicatesstatusof48VdcsuppliedtoeachPAmodule.
ForwardPower(W
)
PAblockforwardpowerinwatts.Note:Ifpowerreadingisnotaccurate,itmayneedtobe
calibrated.RefertoSection5.4.8onpage5‐14fordigitalPAblockforwardpower
calibrationinstructions.
ReflectedPwr(W)
PAblockreflectedpowerinwatts.Note:Ifpowerreadingisnotaccurate,itma
yneedtobe
calibrated.RefertoSection5.4.7onpage5‐13fordigitalPAblockreflectedpower
calibration.
BlkIntlk
StatusofPABinterlock.RedbackgroundindicatesopeninterlockGreyindicatesclosed
interlock.
VSWR
IndicationofVSWRstatus.RedbackgroundindicatesexcessiveVSWR.GreyindicatesVSWR
withintolerance.
RS485
StatusofR
S485bus.Redbackgroundindicatescommunicationproblem.Greyindicate s
RS485communicationisok.
Table3‐14XMTRHome>PowerAmpsScreen>LPUPA’s
Field Explanations
PA#IndicatesLPUPAmodulenumber.
Id#FETdraincurrentforFET1and2.
Temp IndicatestemperatureofPApallet.
PS IndicatesPSstatus.
48VDC Indicatesstatusof48VdcsuppliedtoeachPAmodule.