Section Ix Troubleshooting Guide - Icom IC-505 Operation Manual

SECTION IX TROUBLESHOOTING GUIDE
Follow instructions given in the troubleshooting table. However, if any problem cannot be
corrected, call your dealer or ICOM service center.
Poor contact to external
Power failure Battery pack in poor contact
power supply. |
with transceiver.
Battery has been exhausted.
No sound from speaker Volume control is fully Rotate VOLUME control
counterclockwise. clockwise.
Rotate squelch control
counterclockwise.
` Clean contact points
(electrodes).
Replace with new cells or
recharge Ni-Cd cells.
Check for correct battery
polarity.
Check power connection.
Cells are not in correct
polarity.
Squelch circuit is on.
An external speaker or Check for open audio circuit.
headphone is connected. | |
In transmit mode. | Select Receive mode.
Battery voltage is low. Replace or recharge cells.
Rod antenna is not extended | . Fully extend rod antenna.
enough.
Incorrect external antenna is
used or antenna Circuit is
open or shorted. _
Defective PTT switch
Poor sensitivity
Check coaxial cable and
external antenna for proper
connection.
Check PTT switch on the
microphone.
Power amp is off and/or
LOW power switch is in
LOW position.
Check mic connector. .
No or low RF output
In Low Power mode.
No modulation Mic connector is in poor
contact.
Mic plug or its related circuit
is open. |
RIT is on, thus receiving and
transmitting frequencies are
not the same.
SPLIT switch is on, thus
receiving and transmitting
frequencies are not the
same. uU n U
Check wiring at mic plug.
Turn RIT off or set it in 12. The set works normally
o'clock position.
but cannot make a
contact.
Turn off SPLIT switch by
pressing it again.
No frequency сап be - Frequency was set other
Set frequency again with
written into memory. than in VFO. VFO A or VFO B. |
Frequency data їп Back-up cells have been Replace back-up cells.
memory has
exhausted. . ғы
|
|
disappeared.
|
E
Memory Scan does not The same frequency was set Enter different frequencies
work. | in memory channels: into memory channels.
Program Scan does not The same frequency was set | Enter different frequencies
work. in M1 and M2. into M1 and M2.
The scan does not stop Squelch does not operate Rotate squelch control
even if a signal is clockwise until noise stops.
received.
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