Other Lcd Indications & Error Messages - AOR AR2700 Operating Manual

The receiver stops on blank carriers
The receiver may stop on blank carriers. It may be that these are true
transmissions (you can usually remove the aerial to determine this).
Alternatively the AR2700 (like all receivers) will produce spurii in certain places
such as 129.600 MHz, 144.000 MHz and 158.400 MHz as examples. You may
use the PASS facility to reduce their annoyance to a minimum.
The display blinks and changes
Ensure that the PRIORITY facility is not engaged. If it is, the legend "PRIO"
will be displayed on the second line of the LCD toward the upper right hand
corner.
Receiver does not switch on
In using NiCad batteries, charge them using the charger provided or connect
the receiver to a vehicle cigar lighter socket using the DC lead provided. If you
are using dry batteries, replace them with a fresh set.
If this does not help
If the above does not help, please contact your supplier for assistance.
16-3 Other LCD indications and error messages
"BEEP" & "BOOP"
The keypad usually produces a high pitch "beep" when the correct key or
sequence is followed. Should an inappropriate key be pressed, a lower pitch
"BOOP" will be produced. It is possible to switch the beep & boop On/Off
using the key sequence [2ndF] [PASS].
A "boop" will be emitted if you attempt to scan or search when no data has
been programmed.. following a FULL microprocessor reset for example.
BATTERY LOW special indicator
The special on-screen battery indicator provides a constant indication of
battery level. Once the unit indicator drops to "one block" then it is time to
recharge or replace the batteries as the unit may stop functioning at any time.
"PLL Err" - PLL ERROR
This indicates that the PLL (Phase Lock Loop) has unlocked. This is the
system used by the receiver to select and change frequency. Ensure that the
frequency is within the receiver's specified frequency coverage of 500 kHz
(0.5 MHz) to 1300 MHz.
A PLL ERROR message may also be displayed if the batteries are near to
exhaustion.