4
8
MAINTENANCE
PROBLEM POSSIBLE CAUSE SOLUTION REF.

n Troubleshooting

The following chart is designed to help correct prob-
lems which are not equipment malfunctions.
If you are unable to locate the cause of a problem or
solve it through the use of this chart, contact the near-
est Icom Dealer or Service Center.
Power do es n ot come
on whe n [POWER] is
pushed.
No sounds from the
speaker.
Sens iti vity is low an d
only strong signals are
audible.
Received signal cannot
be understood.
Output power is too low.
No contact possible with
another station.
• DC power cable is improperly connected.
• Fuse is blown.
• Volume level is too low.
• The squelch is closed.
• The audio mute function is activated.
• A selective call or squelch function is acti-
vated such as 5 tone call or tone squelch.
• The front speaker is set to OFF.
• Antenna feedline or the antenna connector
has a poor contact or is short-circuited.
• Optional voice scrambler is turned OFF.
• Scrambler code is not set correctly.
• Output power is set to Low.
• Power amplifier protection circuit is acti-
vated.
• The other station is using tone squelch.
• While in base operating mode, the re-
peater is set to duplex.
• Re-connect the DC power cable correctly.
• Check the cause, then replace the fuse with
a spare one.
• Rotate [VOLUME] clockwise to obtain a
suitable listening level.
• While in base operating mode, rotate [SE-
LECT] to counterclockwise to open the
squelch. (When the [SQL Level Up/Down]
key function is assigned to [SELECT].)
• Push [MONI] (if assigned) to the audio
mute function OFF.
• Turn the appropriate function OFF.
• Turn the front speak er ON using the o p-
tional CS-FR5000 cloning software. Ask
your dealer for details.
• Check and re-connect (or replace if neces-
sary), the antenna feedline or antenna con-
nector.
• Turn the optional voice scrambler ON.
• Reset the scrambler code.
• Push [HIGH/LOW] (if assigned) to select
the High power.
• Cool down the repeater or stop accessing
to the repeater until it has cooled down.
• Turn the tone squelch function ON.
• Set the repeater to simplex, when other
transceiver is set to simplex.
pgs.
5, 6
p. 8
p. 7
p. 7
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p. 5
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n Fuse replacement

If a fuse blows or the repeater stops functioning, try to
find the source of the problem, and then replace the
damaged fuse with a new, rated fuse.

CAUTION: DISCONNECT t he DC power cable

from the repeater. Otherwise, there is danger of
electric shock and/or equipment damage.
Fuse rating: 20 A
USE the 20 A fuse only.

D Line fuse replacement

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