Maintenance; Troubleshooting; Fuse Replacement; D Line Fuse Replacement - Icom IC-FR5100 Instruction Manual

4

MAINTENANCE

■ Troubleshooting

The following chart is designed to help correct prob-
lems which are not equipment malfunctions.
PROBLEM
Power does not come
on when [POWER] is
pushed.
No sounds are heard
from the speaker.
Sensitivity is low and
only strong signals
are audible.
Received signal can-
not be understood.
Output power is too
low.
No contact possible
with another station.
The transmit signal
is not output from the
PA unit.
The PA unit tempera-
ture data cannot be
detected.

■ Fuse replacement

If a fuse blows, and the repeater stops functioning, find
the source of the problem, repair it, and then replace
the damaged fuse with a new matching rated fuse.

D Line fuse replacement

Fuse rating: 20 A (for the repeater unit),
30 A (for the PA unit)
USE the specified fuse only.
9
POSSIBLE CAUSE
• The power supply is turned OFF.
• 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 such as
5 tone call or tone squelch is activated.
• The front speaker is turned OFF.
• The function assigned to the pins of the ACC
connector is wrong.
• Antenna feedline or the antenna connector
has poor contact or is shorted.
• Optional voice scrambler is turned OFF.
• Scrambler code is not correctly set.
• Output power is set to Low.
• Power amplifier protection circuit is acti-
vated.
• The function assigned to the pins of the ACC
connector is wrong.
• The other station is using tone squelch.
• While operating in the base mode, the re-
peater is set to duplex.
• Power amplifier protection circuit is activated
because the repeater unit's output power
level is set too high, or too low.
• The function assigned to the pins of the ACC
connector is wrong.
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.
SOLUTION
• Turn ON the power supply.
• Reconnect the DC power cable correctly.
• Check the cause, repair it, and then replace
the fuse with a compatible one.
• Rotate [VOLUME] clockwise to obtain a suit-
able listening level.
• While in the base operating mode, rotate
[SELECT] counterclockwise to open the
squelch. (When the [SQL Level Up/Down]
key function is assigned to [SELECT].)
• Push [MONI] (if assigned) to turn OFF the
audio mute function.
• Turn OFF the appropriate function.
• Turn ON the front speaker using the CS-
FR5000(dPMR)
cloning software
your dealer for details.
• Assign the correct function using the CS-
FR5000(dPMR). Ask your dealer for details.
• Check the antenna cable or connector and
then reconnect, or replace if necessary.
• Turn ON the optional voice scrambler.
• Reset the scrambler code.
• Push [HIGH/LOW] (if assigned) to select
High power.
• Cool down the repeater or stop accessing
the repeater until it has cooled down.
• Assign the correct function using the CS-
FR5000(dPMR). Ask your dealer for details.
• Turn the tone squelch function ON.
• Set the repeater to simplex, when the other
transceiver is set to simplex.
• Adjust the repeater's output power level to
5 W.
• Assign the correct function using the CS-
FR5000(dPMR). Ask your dealer for details.
CAUTION: DISCONNECT the DC power cable from
the repeater. Otherwise, there is danger of an elec-
tric shock and/or equipment damage.
REF.
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pp. 6, 7
p. 9
p. 8
p. 8
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p. 4
pp. 6, 7
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p. 4
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p. 4