Trouble Shooting - Take Note Of The Following - AOR AR8600 Operating Manual

LCD legends are all shown. Check that the contrast is set to a sensible level (not too high) in the
CONFIG menu (around 10).
Cannot save any data. Ensure that write protect is not set. It is also possible for data not to be saved
if the batteries are very low in charge.
Cannot enter frequencies. Ensure that you are entering frequencies in MHz format between the range
of 0.100 MHz and 2040.000 MHz.
Keypad inoperative. Ensure that the key lock is not engaged (key symbol on the LCD).
the key to toggle keylock on / off.
Keypad and operation is sluggish. Ensure that at least one memory is stored in each memory bank,
this will increase scroll operation through banks.
No SCAN. Check that you have memory data saved and that all channels are not locked out (PASS).
No SEARCH. Check that you have search data programmed and that all frequencies are not locked out
(PASS).
PLL ERROR. If the radio circuit is unable to tune the AR8600 to the programmed frequency a PLL
ERROR (Phase Lock Loop) may result. Check that the problem is not caused by corrupt data stored
erroneously in a memory channel, memory bank or search bank. Ensure that sufficient voltage is being
provided by the power supply or optional BP8600 if fitted. Failing this, contact your supplier for
assistance.

19-3 Trouble shooting - Take note of the following

Select scan cannot operate in conjunction with mode scan. Select scan is disabled when priority is
engaged.
Priority is disabled when the band scope is in operation. If a long DELAY time is set, priority 'eats'
away at delay time causing it to shorten. If the optional CT8200 slot card is in use, CTCSS SEARCH
cannot operate with priority engaged due to the required CTCSS search time being quite long.
If the key is being used to display a frequency with FREQUENCY OFFSET in use, this offset
frequency cannot be stored into memory.
The squelch may not operate promptly (as you may expect) when monitoring in USB, LSB, CW and
NAM modes due the narrow bandwidths employed. This is a fundamental characteristic of the squelch
circuit. Audio may remain even though the "S" squelch legend may have disappeared for a couple of
seconds. It is suggested that LEVEL squelch be used as an alternative in this situation.
There are no internal operator adjustments. In the unlikely event of servicing being required,
please contact your dealer for technical assistance.