Specifications

Maxiva ULX Series
November 11, 2013
5‐43
888‐2628‐300 WARNING:Disconnectprimarypowerpriortoservicing.
Copyright©2013,HarrisBroadcast
5.14.6 TCUCardReplacement
ShoulditbecomenecessarytochangecardsintheTCUusethefollowingprocedure:
STEP 1 GototheSystem>Service>VersionscreenandnotetherevisionlevelsofthePCMand
MCMcardsiftheyaregoingtobechanged.
STEP 2 Turnoffthetransmitteranddisconnectpowerfromthetransmittercabinetor
disconnecttheACplug(s)fromtherearoftheTCU.
STEP 3 Usethefingerholecutoutsbui ltintothesidesoftheTCUfrontpanelashandles,pull
outwardanddownonthefrontcover.
STEP 4 RemovefourrackmountingfastenersfromtheeachsidesoftheTCUfront.
STEP 5 PulltheTCUchassisoutoftherackasfarastheslidesallow.
STEP 6 TheTCUcanbepivoteddownwardforeasieraccesstothecards.Thisisdoneby
removingthefrontscrew(shownin
figure5‐35)oneithersideoftheTCUslide
brackets.
Warning
THE TCU MUST BE SUPPORTED WHILE REMOVING THESE SCREWS TO KEEP IT
FROM FALLING DOWNWARD RAPIDLY.
STEP 7 RemovetheTCUcovertogaineasieraccesstotheTCUcards.
STEP 8 Removeconnectorsfromtherearofthecardthatisbeingchanged.
STEP 9 Useashort#2Phillipsscrewdrivertoremovethemo untingscrewfromthebackof
eachmodule(nearthebottom).
STEP 10 Lifttheboardoutoftheslotandreplacewithnewboard.
Note
If the MCM card is changed the flash drive card should be removed from the old board and installed in the
new board. This will allow the system to retain previously stored calibration values.
STEP 11 ReversethestepstoreconnectandreinstalltheTCU.
STEP 12 TurntheTCUonandafterbootup,verifythatthesoftwareonthenewboardisthe
sameaswasontheboardthatwasremoved.
STEP 13 Endofprocedure
5.14.7 MCMCardReplacement
Followtheinstructionsgivenin5.14.6onpage5‐43forTCUcardremoval.
TheMCMcardintheTCUcontainsseveraljumpers,acabinetselectorswitch(S1rotary),andatoggleswitchusedto
selectVT‐100orDNLDinputs.ShouldtheMCMcardneedtobereplacedthefollowingjumpersshouldbesettothe
samevaluesastheoriginalboard.Bluejumper
settingsthatshouldbecheckedare:
JP1 1‐2
JP2 1‐2
JP4 2‐3
JP5 1‐2
JP6 1‐2
JP7 2‐3
JP8 2‐3
RotarySwitch(CabinetIDS1):
Switchshouldbesetto1forcabinet1,2forsecondcabinet,etc.
DNLD/VT100(toggleswitchS2):
SettoVT100ifVT100isconnectedtoRS‐232port.
Note
If the MCM card is changed the flash drive card should be removed from the old board and installed in the
new board. This will allow the system to retain previously stored calibration values.