Sharp SD-AT1000W Specifikace Strana 217

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Maxiva UAX
October 17, 2013
537
8882693004 WARNING:Disconnectprimarypower priortoservicing.
Copyright©2013,HarrisBroadcast
STEP 3 LocatethebatteryholderonthePCM2card.LocationisshowninFigure5
21.
Figure 5-21 PCM-2 Battery
STEP 4
Useasmallflatbladescrewdrivertogentlypryopenthebatteryholddown
clipwhileslidingthebatteryundertheclip.The+sideofthebatterymust
installedclosesttothebatteryclip,i.e.the+sidemustpointawayfromthe
board.TheinstalledbatteryisshowninFigure521.
STEP 5 Closefrontpanel.
STEP 6 ReapplyACpower.
STEP 7 Resettimeanddateasneeded.Seesection5.8.3onpage536.
STEP 8 Endofprocedure.
5.8.5 TCUCardReplacement
ShoulditbecomenecessarytochangecardsintheTCUusethefollowingprocedure:
STEP 1
GototheSystem>Service>Versionscreenandnotetherevisionlevelsofthe
PCMandMCMcardsiftheyaregoingtobechanged.
STEP 2 Turnoffthetransmitteranddisconnectpowerfromthetransmittercabinet
ordisconnecttheACplug(s)fromtherearoftheTCU.
STEP 3 UsethefingerholecutoutsbuiltintothesidesoftheTCUfrontpanelas
handles,pulloutwardanddownonthefrontpanel.
STEP 4 RemovefourrackmountingfastenersfromtheeachsidesoftheTCUfront.
STEP 5 PulltheTCUchassisoutoftherackasfarastheslidesallow.
STEP 6 TheTCUcanbepivoteddownwardforeasieraccesstothecards.Thisisdone
byremovingthefrontscrewoneithersideoftheTCUslidebrackets.
Warning
THE TCU MUST BE SUPPORTED WHILE REMOVING THESE SCREWS TO KEEP IT
FROM FALLING DOWNWARD RAPIDLY.
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