Sharp SD-AT1000W Specifications download pdf (Page 216)

Section-5 Maintenance

October 17, 2013

5‐36

WARNING:Disconnectprimarypower priortoservicing. 888‐2693‐004

5.8.3 DateandTimeSettings

TheTCUdateandtimesettingscanbeadjustedusingthelocalGUIscreen.SeeFigure3‐12onpage3‐12which

showsthelocalGUIservicescreenandTable3‐6onpage3‐13,whichexplainsthedateandtimesetting.

5.8.4 Installing/ChangingtheTCUPCMBattery

Transmittercontrolunits(TCUs)areshippedascomponentsinseveraldifferentHarristransmittermodels.TheTCU

containsdifferentprintedcircuitcardsdependingonthetransmitterapplication.TCUsthathaveGUI(GraphicalUser

Interfacetouchscreen)displaycontainaPCMcard.ThePCMcardisthesecondcardfromtherightwhenlooki

ngat

thefrontoftheTCU.

Figure 5-20 UAX TCU with front panel lowered

ThePCMca

rdcontainsabatterythatisusedbytherealtimeclocktomaintainthecorrecttime/datewhentheunit

doesnothaveACmainspowerapplied.TheunitistypicallyshippedwiththebatteryremovedfromthePCMcard.

Thebatteryshouldbeinstalledbefor ethetransmitterisplac

edintooperation.

Thecl

ockbattery(partnumber660‐0093‐000forolderPCMcardsand660‐0054‐000formorerecentmodels)is

packedinsideaplasticbagalongwithbatteryreplacementinstructions.OncethetransmitterisinstalledandAC

mainspowerhasbeenconnected,theclockbatteryshouldbeinstalledinthePCMca

rd.

5.8.4.1 PCM‐2BatteryInstallationInstructions

STEP 1 Turnoffthetransmitterandremovepowerfromthetransmittercabinetor

disconnecttheACplug(s)fromtherearoftheTCU.

Caution

TCU CARDS ARE NOT HOT SWAPPABLE. THE TRANSMITTER SHOULD BE

OFF AND THE POWER DISCONNECTED FROM THE TCU BEFORE REMOVAL

OF CARDS.

STEP 2 UsethefingerholecutoutsbuiltintothesidesoftheTCUfrontpanelas

handles,pulloutwardanddownonthefrontpanel.

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Sharp SD-AT1000W Specifications Page 216