Troubleshooting - Icom IC-R8600 Instruction Manual

Troubleshooting

The following chart is designed to help you correct problems 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 your nearest
Icom Dealer or Service Center.
PROBLEM
Power does not come
on when is
pushed.
No sound is heard from
the speaker.
Sensitivity is too low,
and only strong signals
can be heard.
Received audio in the
SSB mode is unclear or
distorted.
The displayed
frequency does not
properly change by
rotating .
POSSIBLE CAUSE
Power cable is improperly
connected.
The external power supply is turned
OFF.
The DC power cable fuses or
circuitry fuse is blown.
The optional AD-55NS or SP-39AD
is used but the supplied short
connector is not connected.
Audio level is too low or 0%.
The squelch is too tight.
The Tone/Code squelch or Digital
squelch (D.SQL) is ON.
A headphones is connected to [EX-
SP] or [PHONES].
The external speaker cable is
disconnected.
The attenuator is activated.
The RF gain is reduced. ("RFG" is
displayed.)
The antenna is defective or
the coaxial cable is shorted or
disconnected.
You are using an antenna not
suitable for the band you have
selected.
The selected antenna connector is
incorrect.
The squelch is too tight.
The incorrect sideband is selected.
The Digital TWIN PBT function is
activated.
The Dial Lock function is activated.
(The [LOCK] indicator lights.)
SOLUTION
Reconnect the power cable correctly. p. 2-1
Turn ON the external power supply.
Find and repair the cause of the
problem and then replace the
damaged fuse with a new one.
Connect the supplied DC power
short connector to [DC 13.8 V].
Set the audio level to a higher level.
Set the squelch level to open the
squelch.
Turn OFF the Tone or Digital
squelch.
Disconnect the headphones.
Check the external speaker cable
and repair it.
Turn OFF the attenuator in the
FUNCTION screen.
Set [RF GAIN] to 100%. ("RFG" is
disappeared.)
Repair the problem and then
reconnect to the antenna connector.
Connect an antenna suitable for the
operating frequency.
Select the appropriate antenna
connector.
Set the squelch level to open the
squelch.
Toggle between USB and LSB.
Touch [PBT1] or [PBT2] for 1 second
to clear the settings.
Hold down
OFF the Lock function.
12-4
MAINTENANCE
REF.
p. 2-1
p. 12-1
p. 2-1
p. 3-1
p. 3-1
p. 5-9
p. 2-3
p. 2-3
p. 5-1
p. 3-1
p. 2-2
p. 2-2
pp. 2-2, 3-2
or 5-1
p. 3-1
p. 3-1
p. 5-2
p. 3-3
for 1 second to turn
12
1
2
3
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5
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