Troubleshooting - Icom ID-31A Instruction Manual

8

TROUBLESHOOTING

If your transceiver seems to be malfunctioning, please check the following points before sending it to a service center.
PROBLEM
Transceiver does not turn
ON.
No sound comes from the
speaker.
Transmitting is impossible. • A frequency outside of the 430 MHz amateur
Transmitting using the VOX
function is impossible.
Contacting with another
station is impossible.
Frequency cannot be set.
A program scan does not
start.
A memory scan does not
start.
The displayed frequency is
erroneous.
51
POSSIBLE CAUSE
• The battery is exhausted.
• The battery polarity is reversed.
• Loose connection of a battery pack (case).
• Volume level is too low.
• An external speaker or a cloning cable is con-
nected to the [SP] jack.
bands is set.
• The PTT Lock function is activated.
• The VOX Level is set to OFF or too low.
• The MIC Gain is too low.
• A different tone or code is used for the tone/
DTCS squelch.
• The Key Lock function is activated.
• The memory mode, Call channel mode, or DR
mode is selected.
• The memory mode, Call channel mode, or DR
mode is selected.
• The same frequency has been programmed in
the scan edge channels, "✱A" and "✱B."
• The VFO mode or Call channel mode is selected.
• Only one or no memory channel has been pro-
grammed.
• The CPU has malfunctioned.
• External factors have caused a fault.
SOLUTION
• Charge the battery pack, or replace the batteries.
• Check the battery polarity.
• Clean battery terminals.
• Rotate [VOL] to adjust to a desired level.
• Check the external speaker connection or remove
the cloning cable.
• Set the frequency within 430 MHz amateur bands.
• Set the PTT Lock function to OFF in the FUNCTION
Menu.
• Set the VOX Level to a suitable level.
• Set the MIC Gain to a suitable level.
• Check the tone/DTCS by performing a tone scan.
• Hold down [LOCK] for 1 second to cancel the
Key Lock function.
• Push [V/MHz] to select the VFO mode.
• Push [V/MHz] to select the VFO mode.
• Program different frequencies in the scan edge
channels.
• Push [M/CALL] to select the memory mode.
• Program two or more memory channels.
• Reset the transceiver.
• Remove and reattach the battery pack/case.
REF.
pp. 1, 13–16
p. 15
–
p. 19
–
p. 23
p. 44
p. 59
p. 45
p. 27
p. 26
p. 21
p. 21
p. 28
p. 21
p. 28
p. 50
p. 1