Specifications

Section-5 Maintenance
October 17, 2013
5‐58
Copyright©2013,HarrisBroadcast
WARNING:Disconnectprimarypower priortoservicing. 888‐2693‐004
Figure 5-44 LPU Rear Panel Fittings
STEP 12
Usea9/16"wrenchtoremovethenutsfromthe1PPS,10MHz,&ASI
MonitorconnectorsontherearoftheLPU.
STEP 13 Usea3/16"nutdrivertoremovethescrewlockfittingsfromtheRS232and
CANconnectorsontherearoftheLPU.
STEP 14 Usea#1PhillipsscrewdrivertoremovethetwoscrewsthatholdintheUser
RemoteandTxInterfaceconnectorsontherearoftheLPU.
STEP 15 Usea#1Phillipsscrewdrivertoremovethetwoscrewsthatholdtheanalog,
satellitereceiver,ASIoverIPadapterinputs,orblankpanelsthatmaybe
installedintherearoftheLPUchassis.
STEP 16 UseanM6nutdrivertoremovethesixexpansionboardstandoffstuds.
STEP 17 Usea#1Phillipsscrewdrivertoremovethethreescrewsthatholdthefront
ofthesignalprocessorboardtothechassis.
STEP 18 Carefullyliftthefrontofthesignalprocessorboardupward,thenslideit
forwardtocleartheconnectorsontherearpaneloftheLPU.
STEP 19 Ifthereplacementboarddoesnotcontainamicromodule,usea#1Phillips
screwdrivertoremovethescrewsinthemicromoduleontheremoved
board.Opentheclipsoneithersideofthemicromoduleanditwillspring
upwardallowingremovalofthemodule.Placethemicromodulein
tothe
replacementboardandcarefullyfastenitinplace.
STEP 20 Endofprocedure.
5.9.15 SignalProcessorBoardReplacement
ToolsRequired:
• #1Phillipsscrewdriver
• #2Phillipsscrewdriver
• 9/16"wrench
• 3/16"nutdriver
• M6nutdriver