Motorola Minitor III Service
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SERVICEGUIDE Operating Modes Reset Button Stored Voice Min itor III Depending onthemod el ,thefo llow in gmode sareava il a bl e forthepager: • Mo nito r • Mon ito r Tone A lert • Mon itorVi brate • Select C all Ton eAlert • Sel ectC all Vi brate • Sca n o rPri or it y S can Anymonitor mode all ows vci coccmmunlcationonthesele ct ed channelto behea r d t hroug hthe s pe a ke r. Selec tca llm od es re quire lone detect ion to automatically receive v oice communi catio n. Priority s canmo de moni to rs two chan n e ls.Theambe rLEDblinks fastto indic a te atransmi s sion onFlchannel a nd at a s lowe rratefortransmi s sion onF2 channel. Flis alw ay s thepr iori tychannelandw illoverridechanne lactivi tyon F2 . Pres sin g a n d releasing theresetb utton returnsthe pa gertothe stan dbymode.T he resetbu tt onact ivatescha nn el monitoring whe n p r e s se d an d held. The play ba ckbutton is centeredin thefunction swit ch. Whe npr e s sed , it a llow s pl a yba ck of up to two minuteso f m es s a ge s . Th e re dLED t u rnson if t heme mory cont ai n s anyunreadm ess a ge s. Th epagerwill a lso ge ne ra t e arem inderalertapproximate lyeverytwominute s whena n u n read m ess age exi st s. Ifthereareno m essa g es in m emory,am em ory emp tytoneis generated wh ile the p la yba ck bu tto n i spr es se d. Programmable FunctionSwitch Options Depe n din gon t he m odel, the fu nct ion swit c hca n b e programmedwith th e followin g o ptio n s : Opt ion NumberD es c ription a Monitor F1 T one Ale rt 1 Monitor F 2 ToneAle rt 2 Select ive C all F lTone A lert 3 Select ive Ca llF2 Tone A lert 4 Vibra te Al ert FlMoni tor Mode 5 Vibrate A lertF2 Monitor Mode 6 Vib rate Alert F1 Se lect ive C all Mode 7 Vibrate Aler tF 2 S electiv e Call M ode 8Dec emb e r16 , 2002688 1033B55- F
MinitorIIISERVICEGUIDE O ptio n Numb erDes cript ion 8 Address OlfDuly F 1To ne Aler tSelective C all M od e 9 Address allDuly F2 Tone A lertSelec tiveCal lM ode 10 Address 0Du ly F1Vibra te Alert Select iveCall Mod e 11 Address 0Duly F2 V ibrat eAl ert Selectiv eCal lM ode 12 Scan with Tone A lert on ly 13 PTl-Vibra teAle rtAud ioallAlter Al ert F1 Selective Ca ll 14 P Tl-Add ressallDuly F1Vibra teAlert Au dioallAller Alert F1 Se lectiveCarr Maintenance Thc procedures in th i ssec tio npro....ide in struction sfOTth edisa s se mb lyofthe M in ito r III pa g er,Sp ecial too ls and testequi pmentu se d f or thepa gerarclis te d in S tandard Too ls an dTest Equip ment,attheendof the di sa ssem bly in structio ns. T hi sprod uctcontain s s ta ti c-sensi ti ve dev ice s.Useanti-st at i cha n dlin g proced ure s to prev entel ec tros tat ic discha rg ea ndcom ponen tda m age . Removing BackCover To r emo vetheba c kcove r, do the fo ll ow ing: 1. Tu m v olu me co ntro lto Off p ositio n. 2 . Usi ng a 1.5 mm All en wre nch r em o ve t he b ack cov er l ocksc re w . 3 . Remo vebatt e ri es . 4 . Sepa r ateth e cover s usin gloc krin g pliersas fo ll ow s: 688 1033 B55 ·FD ecember 16.20029
SERVICEGU ID EMi n it or III a. 990062 Holdh ou s in gfirmly , the n placelockringpliers intopo sition between back cover and fron t h ous in g.b.Compre ss lo ck ringplierstopry backcov er andfr onthousin g ap art. 990063 c.Pryup on b ac kcov erwiththumb.d. Re move ba ck c overandsetaside . 990065 10 D ecember 16 ,20026B B1033B 55-F
Minitor III RemovingtheDecoder BoardandReceiverAssembly SERVICEGUIDE Afterremovin gth eback coveras descr ibed intheprocedure,removethed ecoder board and r eceiv erasse mbly (F igure1)as fo llows: The decoderboard andreceioer are remov edasoneass em bly , the n sep arated later . Wh en rem ov ingtheass embly ,take ca renot tobreakthewir es co n nectingthe decod er b oar d a nd thespe a k er. 1.Gen tlyli nthedec oder board/re ceiveras semb ly out of t he h ousin gatthe batterye ndo fthehou sing.Whenthebatterycompartmentha scle aredthe hou sin g,pu lltheass e mbly away fromth efun ction a n d onlotfvolume swit ches. vibrutor/ F ron t H ou sin g 9900Figu re1.MINITORIII-MajorComponent s 6BB1033855·FD ec embe r 16 , 2 0 0211
SERVICE GUIDE Minit or III 2. Thereceiver isattache dto th e decoderby two e ig ht- pi nmi ni a ture co nnecto rs l oca t e dat eac hend of t h e r e ceive r. T u rn the asse mbly ove r an d r emo ve th e r e ce iv erby lift in gitup wa r doITthedec oder board. Repl ac ingtheDecoder Boardand ReceiverAssembly Theassembly of thedecode r board/r ece ive r a ssem bly i s thereverseo f d is a sse mb ly . W hen rei n stall in gthe decod e rboard/ re ce ive rasse mblyinto t he hou sing,en sure thatthe f u nct ion and onJ oITknobsarein alig n mentw it h the switc hposit ionson the d ecod e r boa r d ( Figu re2). a -Positio n Function Switch Se tto·C ·posit io n . S lide Switch Reset S witch ,-Jj-- ploF ron tHousing ~-------,,------~/ Set t hese knobs so l heyarcalignedwith thes w itch position s. 9!ilOO52 Fig ure2.F ron t Pan elKn obI Deco der Board Switc h Positi on Alig nment 12D ec e mber16,2 00268 8 10 3 3B55 ·F
MinitorIII SERViC EGUIDE Installing Escutcheon andFunction Knobintoa NewHousing Whenins t all in g t he fu nct ion sw it c hesc utc heo nan dknob in t o t he fronthou s in g, i nstall the esc utc heon fi r st (Figure3) t oeliminatethech a nce of co ntaminatin g th e a d he sive s ur fa ce w it h thelu b r ica nt used forinstalling th e fu nct ion swi tc h . ~movebacking==----Ir omadhesive s id e , t o c n pre s s e scutch e on tote pla c e . 990053 Figure3.E scut cheo n In stall ati on Dia gra m FunctionKnobInstallation P erfo rm t he fo llow i ngproce d ureto in st a llthe f u nct io n k nobintothe hou sing ( Fi gu r e 4): U se onl y lu brica nt (P IN 1100490487)as s p eci fied. Nootherlu br ica nts ho uldbe u sed . 1.P lace lub ri can t (PIN1100490 487)on a co tton sw a b, th e n ap plya lig ht c oat aro undt he rim ofthehou si n gfunction sw itc h openi ng. 2. Po sition sw itc hwit h extrusio n dow nan d p res s into hou si n g. 3 . Rei nstall decod er boa r d/ re cei ve rintofron thousing. 4 . On d e coder boa rd ,set On/OfT Volu me sw itch to O fT. SetFu ncti on swi tc h p o sition C. 5. Setk nobs toalignwithsw i tchpo sit ion s . 6881 0 33B55-F Decembe r 16,2 00 213
SERVICEGUIDEMinitorIII Functi on Kn ob Applylu b rican tt o th e rim ofthe functio n sw itc h op en ing before ins tallin g fu nc ti on swit chInto the hou s ing. N OTE :Th erubb er knobs have a clutc h feature tha tallow sthe knob to slipifitis over -torqued . If th e assembly is c orrec t and the kn obis point ingto an incorr e ctposit ion ,itcan b e rotate d by twisti ng tothe c orrec t p osition .Uwill t hen loc k inl othe co rrec t p osit ion. ViewA Set th es e knob s so they are a lig ne d w iththe swit ch positi ons . 4-Positi on Funct ion On/OIlNolumeSwitch.Se t to ·C · Switch. Set to p osition . Off\Si.tio..n~.~~~t-:~~~~~~~fl~~ mp:Decoder , , Board :il~!'~j!!!.pI a i,-::.F ront Hous ing On/ Off Func tio n Vo lume Kn ob -,Knob Insertdecode r-----j boa rd into f ront housi ng (see Vi ew A ). P ress knob into ho using unti lit cl icks i nto pla c e. 990055 Fig ur e4.F u n cti on KnobIn sta lla ti on 1 4D ecemb er 16. 2002688 1033B55- F
MinitorIII Troubleshooting SERV ICEGUIDE Tr ou ble sh oot ing in t h is s e rv ice guideislimited to tu nin gtherece iver and a djusti ng t he squ elch anda udio . Tools andTest Equipment The too lsandtestequipmentli st ed i nTa ble1areused totr ou b lesh oot t heMinito r IIIp a ger .Us e equiv a len ts when ever po ssible . Table 1.Tools a nd T estEquipment PartNumber Eq ui p men t Ty p e A1 326 Se ri es RF Ge nerato r A10 68 Fre quency Counte r S 1053 AC Voltmete r HP8 903 Audio Analyzer or S INAD Meter ATl1005A Rad iation Test Fixt ure 250085734 8 Audio Transf ormer, 1:1 156 293 9820 Alignment Housing 6 6803848 73 AdjustmentTo o l, T ri mmer S ea r s9· 45492 Lock ing ring pli ers RFTuning Th e M init orIIIpageris a lig ne datthefact ory to prov ide peakperform anc e over a l ong p erio d oftime . Ifre al ignm en t is requi r ed us c thefollowi ng procedure: 1.Remove p a ger backcover See Removing BackCoveron p a ge 9 . 2 . Repla cepag erfront hous in g wit halignmentfr onth ou sin g. 3.In st all pa gerin r adi a ti ontestfixtu r elO05A (F igure5). 4. C on nect tes t equipment(Fig ure6). 5. A lign p a geraccor ding to al ignmen t procedures descri bed in T abl es2, 3,and4. 6.Whe nthe alignmen tis co mplete, remove a lignmentfronthou s ingandattach pager fro nthou si ng. 688 1033B55 -FDece mber16 ,200215
SERVICE GUIDEMinitorIII TO,T O ONDON P AGER ON PAGER ,ro,IVO LTMETER,II , , , ________R!L§~H~M~T.!.CJ II T OACVOLTMETER .- - - - - - -- ----;G-~7;- - - - - -- - -1, , IO.OOljlF,, , I l.5 k ll, , 99009 7 Fig ure5.Radia tionTestFixtur ewithPagerinAlig n m en t Hou sin g I RF GE NERATOR I I6d B P ADIIRFIN PUT 50t RAD IATIONFRO MIF TEST FIXT U RE TESTP OINTIFRE QUE NC YAC:----PAGER- ---:C OUNTERVOLTMETER: UNDE A TE ST ________ ______J 990057 Figu re6.A lig n ment Tes t S etup Diagram 16D ec e mb er 16 ,200 268 8 103 3B5 5-F
MinitorIIISERVICE GUIDE
Tabl e2.A li gnment P rocedur es (Low Band)
1SetRF gen e ra to rou tp ut lre quency to 14 .575 MHz lor 8 and Csplit, and 1 7.9 M Hzfo r D a ndEs p lits ,a nd sp ray i nto
r e c e iv er,
2Se tRMS vol tme ter to t he -4 0 dB sca leand ge nerate en ou gh s ig nal10m ea s u rem id-sca l eat M1p oin t.
3M ea sure the ex act IF a t TP 4 (M 1) ap proximatel y45 5kH z.See Fig ur e 7 .
4Sel AF gene rato r tothe p rogramm ed cus to m er fr equen cy.
5Se tA F ge ne rator l evelfor a mid s cal e r ea ding on A C vo ltme te r .
6Monito r TP4 frequ enc y .Adju st C206tofrequ ency me as uredin sle ps 2 a nd3:t50H z.
7 M
on it orTP 12 d cvo ltage .Ad just C2l0to 1vo lt.
BMon ito rT P41evei. Adj ust Cll5to max imum .
9 M
o nitor TP4le vel. Ad justC1
l6to ma ximum.
·.!!.t;l,,::;)
.]ii.e lC·.. .- , m -...... .
r.:
T P 12:.. .:-W·.~. .,..C2 06!.........-
\,:\
..:
-............
')~"I: :........G
rBBi1wi·~Ci~0···::·· ···:[1.. ..
I.......~•.. :oJ;1/ 4( M 1).un . .;....- , •0'W.~f:U,.,m.m!;;~'i~)~..:;....1\:.: : ..,C 210.... .
rn.,t jl ·.C116.. •...j;IT,:.,.:!F., , : {l
~~if
r.;;TI~::,cT· ·.-.••••l•
l~"~'':~~.C115~i:.i~··r
9991 00
Figure7.L owBandR ece i ver A lignmentTestPoin tsandAdjustments
6881033 B55· FDe cember16,200217