11
TROUBLESHOOTING
31
If your transceiver seems to be malfunctioning, please check
the following points before sending it to a service center.
PROBLEM
No power comes on.
Transmitting is impossible.
Frequency cannot be set.
Scan does not function.
[
Y
] or [
Z
] keys do not
function when using the
optional HM-75A.
Squelch does not open for
received signals.
Some memory channels
cannot be selected.
RIT/VXO offset cannot be
adjusted.
Cannot transmit on the 50
MHz band.
POSSIBLE CAUSE
• The battery is exhausted.
(A slight current flows in the circuits even when the
power is off.)
• The battery is exhausted.
• Memory (call) mode is selected.
• The lock function is activated.
• The same frequencies are programmed into XA
and XB (a pair of scan edges).
• Only CH00 is programmed; or, all other memory
channels are set as skip channels.
• Memory channels 00 and/or 01 are not pro-
grammed and simple mode is selected.
• Tone squelch is activated.
• Some memories have been cleared.
• RIT/VXO function has not been activated or the
1200 MHz band is not selected.
• AM mode has been set for the 50 MHz band.
SOLUTION
• Charge the battery pack or place new dry cell bat-
teries in the battery case.
(Remove the battery pack if you will not be using the trans-
ceiver for a long time.)
• Charge the batteries or place new dry cells in the
battery case.
• Push [VFO] to select VFO mode.
• Push [
(H/L)
LOCK)] for 1 sec.
• Program different frequencies.
• Program additional memories; or, cancel skip set-
tings for one or more channels.
• Program the memory channels or set to microphone
normal 1 or normal 2.
• Turn off the tone squelch.
• Program the cleared memories.
• Activate the RIT/VXO function in set mode or push
[MULTI(
↔
)] to select the 1200 MHz band.
• Turn AM mode off in set mode.
REF.
pgs. 7,
8
pgs. 7,
8
p. 9
p. 11
p. 18
pgs.
18, 24
pgs.
18, 27
p. 25
p. 18
p. 13
p. 14
IC-T81A/E Manual-(1) 01.12.5 6:56 PM Page 31 (1,1)
