Memory 55 Sseccdhtcacatea Cocaxtercssane Atveesaunsee; Microprocessor Memory Back-Up; Microprocessor Initialization; Memory Channel - Kenwood TM-631A Instruction Manual

4-5. MEMORY
4-5-1. Microprocessor memory back-up
A lithium battery is contained in the transceiver 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 autho-
tized KENWOOD service facility; either your KENWOOD dealer,
or the factory, since this unit contains CMOS type circuitry.
4-5-2. Microprocessor Initialization
© Initial state of the microprocessor from the factory.
MAIN BAND
TM-631A|TM-731A/731E SUBIBAND,
VFO 220 430/440 144
Memory Channel O~9, A~d 220 430/440 144
CALL Channel 220 430/440 144
Scan resume mode Time operated scan
microphone PF key BAND key
(MHz)
® Microprocessor Initialization
When you want to erase all programmed data, or if the dis-
play should show erroneous information, you should initialize
(reset) the microprocessor using the following procedure.
1. Turn the POWER switch off.
2. Press and hold the MR key and turn on the POWER
switch.
3. Release the MR key.
4-5-3. Memory Channel
This transceiver provides 14 Memory Channels (0-9, A-d).
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 these Memory Channels
are described below.
* Memory Channel 1 is used to store the frequency for the
Priority Alert function.
* Memory Channel A is used to store the lower limit for
the Programmable Band Scan function.
* Memory Channel b is used to store the upper limit for
the Programmable Band Scan function.
* Memory Channel C and d are used to store odd split
repeater data.
4-5-4. Memory Contents
Each Memory Channel is capable of storing;
Memory Channel eG ll ed | CALL
Frequency data
Tone Frequency data
Tone ON/OFF
SHIFT status
REVERSE ON/OFF
OJO]O|O}O
*|</O/]O/O OlOJO/O}O}
23