Motorola Micom 2 Manual

MICOM-2E-ALE Owner’s Manual
82
Vehicular Noise Reduction
Most vehicles are subject to several noise sources which greatly  disturb
a received signal. The most noisy sources are the high voltage ignition
sparks that are produced at the vehicles plugs. The second is the
alternator activity.
In keeping with the following insulation practices and if necessary by
adding some damping components, it may be possible to reduce  these
noises to a tolerable level.
1.  Keep your antenna tuner and antenna as far as...

83
Maintenance
Introduction
This section provides maintenance information for the user of the
MICOM-2E Radio.  By carrying out the installation procedures correctly
and following the maintenance instructions properly, you ensure
continual operation of your radio set.
Built-In-Test Equipment (BITE)
When an internal problem appears or is suspected, the MICOM-2E
internal BITE will assist the user to locate the source of this possible
problem and inform the service shop or dealer accordingly.
Preventive...

MICOM-2E-ALE Owner’s Manual
84
Using BITE
Every time the radio is turned on, a self test procedure is being
activated. If an internal malfunction is found, an error message will be
displayed. Please contact your service shop or dealer and inform him
about the trouble indicated by BITE. The potential errors are:
Table 4.  Error Messages
Error No Description
01 DSP boot checksum fail (download)
02 DSP PLL unlock
03 DSP external RAM memory
04 Not applicable
05 DSP internal RAM memory
06 Not applicable
07...

Maintenance
85
Troubleshooting
In case of malfunctioning, refer to the following table:
Table 5. User Troubleshooting Chart
Problem Troubleshooting
Blank Display CHECK· DC power cable is connected properly to the radio and
battery.
· A 7.5A fuse is installed in the fuse holder located on the
green wire of the DC power cable.
Display present but weak or
no receive signal or noiseCHECK· Connection of antenna to antenna tuner and antenna
tuner to radio cables (loose or broken connections)
· Squelch position...

MICOM-2E-ALE Owner’s Manual
86
Problem Troubleshooting
Poor or no transmission
(continued)· If bars are missing on the right side of the RF power bar
graph, it indicates low transmitter power, which can be
caused by a faulty microphone, faulty transmitter,
overheating, or defective antenna system.
In case of a failure during operation, the following messages appear on
the radio’s display:
Table 6. Failure Messages
Message Troubleshooting
NO CLOCK CHECK· That a 30A fuse is installed in the fuse holder...

Maintenance
87
Service
Proper repair and maintenance procedures will assure efficient
operation and long life for this product. A Motorola maintenance
agreement will provide expert service to keep this and all other
communication equipment in perfect operating condition. Through its
maintenance and installation program, Motorola makes available the
finest service to those desiring reliable, continuous communications on
a contract basis.
Motorolas Customer Service Division is the largest service...

MICOM-2E-ALE Owner’s Manual
88
Radio Checks
· Be sure the radio is turned on.
· Replace or recharge the battery. The first time a new battery is used,
it should be charged for at least 16 hours.
· The antenna must be screwed on properly, with its base flush against
the top of the radio.
· Could your radio problem be caused by accessories improperly
connected?
· Try operating the radio from several different locations, especially
when using the radio inside buildings. 

89
Procedures
Changing the display brightness level ........................................................ 27
Changing the frequency value in the LCD display .................................... 18
Changing the password .............................................................................. 25
Choosing a new channel............................................................................. 15
Copying a channel’s parameters to another channel .................................. 31
Deleting a...

90
Toggling the speaker setting .......................................................................65
Transmitting................................................................................................26
Turning the radio on ...................................................................................11 

Index-1
Index
—A—
accessories, 2
accessory connector, 9, 79
ALE, 45
alert tone indications, 9
AllCall, 52
AMD, 63
antenna connector, 79
Automatic Link Establishment, 45
automatic message display, 63
—B—
BER, 45, 48
bi-directional handshake, 51
bit error rate, 45, 48
BITE mode, 21, 83
—C—
call reject, 50
caller stack, 63
Channel mode, 13
connectors, 79
—D—
DIM mode, 27
Dimmer mode, 27
DPLX, 19, 34
Duplex Frequency, 19, 34
—F—
Frequency mode, 17
—I—
icon indicators, 8
Immediate Sounding, 50
individual...