Motorola Minitor IV Basic Service

							Minilor IV
General Description
Basic Se rvice Gu ide
T h e Motorola Minitor IV page r is a neasy -to-use , com pac t alert m onitor , powered by two
r echarg eabl e Nickel-Cadmium or tw oalkaline AAA - size b atteries .Th epager canoperate o n
s electe d L owBand , VHF andUHF frequ e ncies .
Ca ution :D o not p lace p agerin t he cha rge r wh en alkaline batteries a re in sta lled .
The Minit orIV pager uses the m ost advance d self-co n tained, sealed, and cu stom- integrated
c ircuits t operfonn thecomplex fun ct ions
invo lvedin radi opaging .The p ageris ho used in a
high-imp actresistant cas e th at offers exce llent prote ct ion against d ustintru sion,vibration , a nd
s ho ck. Li ghtw eight and sm allin size , the u nitcan b e ca rrie d comforta bly in a po cke t orpurse ,
or c lipped ontoabelt.
Th epag er o ffe rs th efoll ow ing model s :
• S ingle Frequency withVibrator
• Tw o-Fr equ ency with V ibrator
• S ing le Frequen cy Stored Voice wi thVibrato r
• Tw o-Fr equ ency Store dVoice w ithVib rator
tNote :Low Band mod els are not a vailable with the stor edvoicefeatur e ;
On/OffSwitchandVolumeControl
The co mbined single contro lo n th etop of thepag erapp li espo we r to th ere cei ver when the
co ntr ol knob is turnedafew degrees i n theclockw ise direction .A n au diobeep is so unde d to
indi cate that the pa geris turned on .Ro tating the control in the cloc kwise d ir ection, increa ses
the volume
levelof r ec eived message s .
Rotat ingth e co nt rol in t he counterclockw ise direc tio n r edu cesth e a udio
levela nd turn s th e
pa ger off .
AudibleNisualAlertIndicators
When t hepager isin itiallyturn ed o n,b oth thered a nd amb erlight em ittin g diod es (LEOs) on
the contr ol pan ellight and a n alert t o ne is so unded
untilth ede code r ci rcuit pow er-up is
co mp lete. Th ereaft er,w heneve r apro perly e ncoded m essage i sreceived, thered LED fl ashes
and a n au dioale rtis so unded .
Th eam ber LED i s on wh enan unr eadmessa ge is pla yed b ack.If the batt ery voltage f alls
b elow the
levelrequir edfor reliable .o p eration, a low-battery pulse t one so undsand th ered
LED fla sh es.Following any subsequent audio m essage, the mom entary low- battery pulse tone
i s rep e ated
untilth e ba tterie sare rep laced or re-char ged.
6880309M80
1\
ill
C autio n :D o not place pager in the c harg er wh enalkal ine b att eri e sare i ns talle d .
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							Minilo r I V
6880309M80
Basic Service Gu ide
If t h e funct ion switch i sse t to a vibrat e posi tion. the r edLED flashes to i nd ica te a low-battery
sta tean d th e audi blelow-battery alert is generate d.
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							Minitor IV
Operating Modes
BasicService Guide
D ep en din g on the model ,the fo llowi ng modesare ava ilableforthepage r:
• Mo nito r
• Mo nito r Tone Ale rt
• Monito rVi brate
• Se lect Call Tone A lert
• Se lectCall V ibrate
-
• Scanor Pri ority Sca n
Anymo ni to rmode all ows vo ice comm unication on the selec tedchannel tobe hea rdthrough
the speaker .
 Select ca ll modes requir etone detectiontoautoma t ica lly receivevoice
com m unica tion .
P ri ority sca n mode m onitors two c hannels.Th e ambe r LED blin ks fast to ind icate a
t ra n sm i ssion on F1 channel and at a s lowerrate for tra nsmission on F2 chan nel. F1 isalways
t h e p riority channe l andwill ove rride ch ann el ac tivity on F2 .
Reset Button
Press ing a nd r eleasin g the r esetbutto n return sthe pager to th e s ta ndby mode. The reset
bu tton activates ch anne l m onitor ing when pre ssedand he ld.
Stored Voice
The p layback button is cente red inthe function switch. W hen pressed ,itallows playback of
up t otw o mi nutes ofmessage s.
The red LED turns on if the memorycontainsany unread mess ages .The pager will a lso
ge nera te arem inder ale rtappro ximately every two minut es whe nan unr ead message exists.
I
fth e re a reno messag es inmemory , amemory em pty tone is gen erated whilethe playba ck
b utto n is pressed .
ProgrammableFunctionSwitchOptions
De pen din g on the mode l,the fun ction sw itc h can be progra m medwith th e follow ingoptions:
Option Num be r D esc ri p ti on
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o
1
2
3
4
5
6
7
8
9
10
11
12
13
14
Monito rF1 Ton eAl ert
Mo nitor F 2 Tone Alert
Se lect i veCall F1 Tone Alert
Select iveCall F2 Tone Ale rt
Vibrate Alert F1 Mon itorMode
V ibrate Al ertF2 Mo nitorMode
V ibra te Alert F1 Selective Call Mod e
V ibra te Alert F2 Sele ctive Call M ode
Address Off D ulyF1 Tone Alert S electiveCall Mod e
Address Off Duty F2 Tone Alert Se lectiveCallMode
Address Off Duty F 1Vibrate AlertSelec tiveCallMode
A ddress Off Duty F2 Vibra teAlert S elective CallMod
S can wi th T one Alert onl y
PT L-V ibrate Alert A udioOff A fte r Alert F 1Selec tive Call
P T L -Addr essOffDuty F1Vibra teAle rt Audio Off After Alert F 1Selective Call
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							Minilor IV
Maintenance
Bas icServ ice Guide
Th epro cedure s inthis section provide instructio nsfor th edisassembl y
ofth e Min ito r IVpager .
Caution :Th isproduct con tainsstatic -se nsitive de vices.Usean ti-stati c han dlin g
p rocedure s to preven t elect ros taticdisc harge
andco mpone nt d amage .
Removing BackCover
Caut ion: Oncethefront ho using and ba ck co ver aredisassembled,theVL Intrinsi c
SafetyRatingisvoid ed.Tomaintain ULIntrinsicSafetyRatingrepairworkmustbe
p erformed by aUL app roved r epair
facility .The unitmustbe res ealed d uringre­
a s sembl yin order
forth e unit to maintain th eUL Intrin si cSafe ty Rat ionforHazardous
Locations.Instru ction sfor apply inganewgaske tareincl udedinthis manual .
Ca ution :Failure to fo//owthe se rvice
instructionswi// nu //ifyth eH azardous Lo cations
Ap pro val
To r emove th e back cove r, do th e following:
1.T um vo lume control t ooffposition .
2.U se a1.5mm Allen w rench to rem ove the back cov er lockscrew .
3.Remo ve batt eries .
4.Slideth eback cover apart from the front hou singas follows:
a . Ho lding housing withthumb son th ebottom of
the speaker grill and i nde xfingerson to pof belt
cli p. Slid ethe front hou sing and back cove r
apart.
6BB0309M80
b. Remo ve back cove r from front hous ing
co mp letely.
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							Minitor I V
RemovingtheDecoderBoardandReceiverAssembly
Basic Service Guide
A fte r r emoving the back cove ras described i nthe procedure ,remove t hedecode r board and
r ece iver assembly (Figure 1 ) as follows:
Caution:The decoder boardand receivedare removedasoneassembly,andthen
separated later.When removing the
assembly ,ta kecare not to breakthewires
conn ecting thedecoder boardand the speaker.
1. Gently pull t hedecod er board/r eceiver asse mblyoutofthefront h ou sing a t thebattery
end of the housing. P ull from the bo tto m ofth edecod er boardfre ce iver asse mbly ,lift up
and g entlywiggle the assemb ly.
2 . Thereceiver is attached to the decode rby two eig ht-p inminiatureconnectors located at
eac hend of t he recei ver. Tumthe asse mblyovera nd r emove thereceiver by liftin git
up ward o ff thedecoder boa rd.
Speaker
w,res~
--
6880309M80
Figure1.MINITORIV·Major Component s
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							Minit or I V
BasicServ iceGui de
ReplacingtheDecoder BoardandReceive r As s em b ly
The a ssembly o fth e de code rbo ard/re ceive rasse mbly is the re vers eofdisass embl y . Whe n
reinsta llingthe decod e rbo ard/receiver assembl y into thefro n t hou sin g,en sur e that th e
f uncti onand on/o ff kno bs are in alignme ntwi th th e switc h pos itions on th edecode rboa rd
( Figu re 2).
Slide Switch
a
-Posttlon Function Switch
setto·C ·positi on .
OniOffNo lu me Switc h.
Set to Off poslti on.
~tt~~~~-Rese tSw itc h
plo Front
 , j og~~D ecoder Bea rd
~op
/ \,On/OffVo lume Kno b Fu ncti on Kn ob /
Se t th ese k nobsso they are
alig ned with the switch positions .
990052-0
Figure2.FrontP a nelKnob I Decoder Board Switch Position
Alignmen t
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							Minilor IV
Basic Serv iceGuide
Reassembly andResealingoftheFrontHousingandBackCover
Caut ion: To maintain VL Intrinsi cSafety Ratin g,thisp ro ceduremust be pe rformed by a
V L approv edrepair facility
Afte r thedecoder/r ecei ver board assembly had been reassem bled in tothe fron tho using, the
g ask et m at erialmustbe applied to th e b ack cover. A pplythegaske t material as follow s:
1 . Befor e a pp lying any ne w gaske t material, allold m ateri al mustbe r emoved from t he front
h ou sing a nd back cov er. Simp ly remove by gent lypulling gasket m ateri al away fro m the
plastic .
99103
2. Inspec t thefront a ndback ho using for any cracks, scratches or ni cks.Ifany are foun d ,
re pla ce the en tireenclosu re.
3 . Afte rall old gas ket material is removed fro m the fro nt andback housing , a syri ngemust be
used to apply the gasket material. Th e gasket mat erial to be used
ismade byKester .
T he mat erial is calle d Techform TC 533. Add TC 533 to mate rial to the syring eby p ulli ng
out t heplu nger and s quirting m aterial into the sy ringe.
6880309M80
9910<
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							Minito r IV
6880309M80
Ba sic Se rv ice Gu ide
4.W he n th esy ringe i sre ady, beg inap plying mat erialto th eridg ethat run saro und th eedg e
o f
th eback cov er.
-L
__cJ)~~;
99105
- ---- 99106
Appl yth em aterial to th etop o f thetor qu e feat ure as sho w n above .
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							Minilor IV Bas icServiceGu ide
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							Minito rIV
6880309M80
B asic Serv iceGuide
5 . When th e gasket m aterial hasbeen ap plied toth e e nt ire
torqu e fea tureontheback
cov er,so me m at erial must a lso b eadd edto the out side s urface oftheflap feature on t he
u pp er co
mer, oppo sitethe s ide ofthe ba tte ry d oor.
999110
6. Afte r th egasket material application process has been co mpl eted, it i stime to asse mble
the back housing to the front h ousing .Dr op the back housin g o nto thefront housing an d
s lide into p lace.
......---:999!111
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