5-4 Memory; Microprocessor Memory Back-Up; Microprocessor Initialization; Memory'channél) 22:8 - Kenwood TM-241A Instruction Manual

5-4 MEMORY
5-4-1 Microprocessor Memory Back-up
This transceiver contains a lithium battery to retain
memory. Turning off the POWER switch, disconnecting
the power cable, or a power failure will not erase the
memory.The battery should last for approximately five
years. When the battery discharges, an erroneous
display may appear in the display.
Lithium battery replacement should be performed by
an authorized KENWOOD service facility; either your
authorized KENWOOD dealer or authorized service cen-
ter.
5-4-2 Initial State
Initial state of the microprocessor from the factory is
shown in the chart below.
TM-241A/E| TM-441A/E | TM-541A/E
VFO, Memory 440.000/
'J 40.000
channel 1, CALL oe 430.000 aoe
MHz MHz
channel frequency MHz
VFO step 5/12.5kHz 25kHz 25kHz
Memory channel 1CH 1CH 1CH
Tone frequency 88.5Hz 88.5Hz 88.5Hz
5-4-3. Microprocessor Initialization
@ Memory channel Initialization
When you want to erase all programed data, or if the
display shows erroneous information, you should
initialize (reset) the microprocessor using the
following procedure.
. Turn the POWER switch off.
e
2. Press and hold the MR/M key and turn on the POWER
switch.
3. Release the MR/M key .
@ VFO Initialization
All the settings, except the contents of the memory
and call channels, are initialized.
1. Turn the power switch off.
2.Press and Hold the
VFO/MPV key then turn
the power switch on.
No transmit/receive op-
eration occurs when this
is done.
3. Press the VFO/MP V key again.
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5-4-4 Memory Channel
This transceiver provides 20 Memory Channels.
(18 Memory Channels when DRU-1 installed)
In addition to serving as a normal Memory Channel
some of the Memory Channels serve a dual purpose to
specify other parameters. The functions of those
Memory Channels are described below.
(Memory Channel 1 is used to store the frequency for
the Priority Alert function.
©Memory Channel 7 ~10 are used to store odd split
repeater data.
(©Memory Channel 11 is used to store the lower limit
for the Programmable Band Scan function.
(Memory Channel 12 is used to store the upper limit
for the Programmable Band Scan function
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