Sharp SD-AT1000W Dokumentacja Pobierz pdf (Strona 238)

Section-5 Maintenance

October 17, 2013

5‐58

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

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Sharp SD-AT1000W Dokumentacja Strona 238