Motorola Minitor III Service

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...

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...

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...

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...

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...

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...

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...

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...

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...