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...

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.
11 

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...

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...

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...

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....

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...

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 .
17 

Minilor IV Bas icServiceGu ide
6BB0309MBO18 

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....