@ MOTOROLA INC.CommunicationsGroupMOTOROLA HF.SSBAutomatic Antenna TunerModels T1961A and T1962AInstallation Procedure~!tt~~~£~J*it~t!%;tit1~i~rJit*{{
3.PRE-OPERATIONAL CHECKthe radio system (with the antenna being replaced by anantenna simulator circuit). The recommended set-up isshown in Figure 2.3
3.3 Circuits for construction of the antenna simulatorare shown in Figures 4 through 6.-"~}NOTEFigures 4 and 5 apply only for 23 to 60foot antenn
4.2.2 If the equipment surfaces are dirty, wash the ex-ternal surfaces with mild soap and water using aclean cloth. Be careful not to allow the electr
the channel selection knob. If channel change is in-itiated by the A/B button, the tune line circuit is used to<'1 initiate the tuning sequenc
microcomputer memory and begins the termination oftuning sequence.5.4.6 Termination of Tuning SequenceU8-33 goes high to allow the radio to revert tot
ILdA\N 'O8/Ll/OI0-9980r-SJ:EI:EI .oN D1OJoJoJAlJJDl{Q iJUpOOl{S3JqnOJ.LJ3Un.L DUU3JUY:JpDUJOJny~~~ii~"jjj~w".."1I~b'i~~r~~...
TROUBLESHOOT VSWRDETECTOR CI RCUITCHECK SWITCHEDA+ CIRCUIT INRADIOREPLACE FUSETROUBLESHOOTVOLTAGE REGULATORCIRCUITSCHECK CHANNELCHANGE CI RCUITIN RADI
OESNOTTUNING:E WHEN-jANNELiED AND4:1CTPA'HANNELJNNECTION10NOTHEPA'CHANNELLINE (BLUIOLTAGE3,34,38NO'NELCHANGE)PERA TING:HECK/NEL'CU
.----- -------\\\\-----<UO\: \I \\\IIIIIIlIIIjI)///""// j/" /V\ KI2(NOTEIIKI3INOTEIII.,. K"~OTE "L29------/- --- --- -- -
SWITCHED A+PA D'SABLE/CHANNEL CHANGEA NT TUNENOTCONNECTEDlard Detail andUst and'-3lJOO-A;- --- - - -- - --- -.. -. -- -- ".-- --- -.- -
2.2RADIO MODIFICATIONS2.2.1 The TRITON 20 and TRITON 12 and 24 chan-nel radios require circuitry modification if (heywere built before July 1, 1980. T
. -"'-.PHASE DETECTORRr{INPUTO.ZV TO 1.0VP'p T-*-j\!\!\,NOTE5.IC169 -.os I.J.U.ovWAVEFORM AT U2.13 HAS SAME PHASE AS RFINpUT CURRENT. O
DURING CAP PHASEU6-9, 3.2 VU6-&4.' VDURmG IND PHASEU6-9,4.' VU6-8' 3.2 VPUTS ARE APPLIED TO U6D.ow IF RF INPUT PHASE ISJUTPUT IS HI
D.' V "ELA Y CLOSED13.' V "ELA Y OPENES~ A'C9Sr-IC9l2SDPr~ ~2S'1- --:1 E, 1<3,'ti~ -1- ~ ~ - TP.>,~tP6ITALI&q
J'.JI .vP/O TRNS229ATRNS867ATRNS66SARSlaF :JOCOO-O'.SAOIFigure4.TRITON 12and 24 ChannelMain CircuitBoardModificationsCATHODE OF CR41' «
3.2 LOCATION(Refer to Figure8.)Selection of a location for the antenna tunershould be such that it is as close to the antenna as possi-ble. Long "
(;(),;--Table 3. Control Cable Parts ListStep 1. Assemble the control cable as illustrated inFigure 10and as directed in Figure 11.Step 2. Insert the
,.R.F.COAX-~MOUNTING~SCREWGAEPS-30071-OFigure12.Electrical and Mechanical ConnectionsStep 4. Route and connect the solder lugs of the con-trol cable a
ANTENNA.COPl'ERSCREENANTENNA TUNERBULKHEADFEED- THRUINSULATOR"\)~}METALWATERTANKGROUND PLATE7GBEPS-30016--D'7Figure 14.Ground System on
. . '!. ~ j ~' "J~ A=c== : - - a ~m - ftQ1;00--1---~--' i , 12I f~' L 7<-4 12GBEPS-:JO103-05 5 3Figure 16. Control Cable P
/'~$@ MOTOROLA INC.CommunicationsGroupMOTOROLA HF-SSBAUTOMATIC ANTENNA TUNERMODELS T1959A, T1961A, T1962A1.DESCRIPTION1.1 Motorola HF-SSB automat
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