user manual

750.5 INITIALIZING THE PC-8300
There are two types of initialization with the PC-8300
computer.
1. Cold Start:
Used during initial installation or when battery
failure occurs. All contents of RAM are erased.
2. Warm Start:
Used after installation and during normal
operation to run the same program. All contents of
RAM are retained.
Under normal operating conditions (after initial
installation) the first display provided is the LCR Main
Menu upon power up or reset.
750.51 Cold Start Initialization
Under normal operating conditions the memory data
in the PC-8300 is battery backed and is retained when
the power switch is turned off. If the battery voltage
drops too low, the memory may be lost and a cold start
is required. The following procedure describes how to
reinitialize the PC-8300. This procedure is also
followed when the PC-8300 is first used for LCR
programming.
1. Ensure that the batteries are fully charged and
that the backup switch (located at the bottom of the
PC-8300) is turned to the ON position.
2. Ensure that the LCR floppy disk is not installed in
the disk drive unit (PC-8231A).
The micro floppy disk is removed by pushing the eject
button until the disk is completely ejected. See Figure
700-25 Removing the Floppy Disk.
Figure 700-25 Removing the Floppy Disk
3. Ensure that both the PC-8300 and disk drive unit
are turned off.
4. Close the write protection hole on the floppy disk.
NOTE 1:
Opening the write protection hole will
prevent writing onto the micro floppy disk.
Closing it will permit writing on to the
micro floppy disk. Data and files which you
‘NOTE 2:
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CHAPTER 7
APRIL, 1990
do not wish erased are protected by opening
the write protection hole. To change or
replace data or programs contained on the
micro floppy disk, the write protection hole
must be closed. It opens and closes by way of
a small slide switch.
Make sure the micro floppy disk is correctly
inserted. When correctly inserted, a click
will be heard and the micro floppy disk will
be pulled into the unit.
5. Insert the LCR floppy disk into the disk drive unit.
See Figure 700-26. Inserting the Floppy Disk.
The micro floppy disk after insertion
/-*-
Correctly inserted position
Incorrectly inserted position
Figure 700-26 Inserting the Micro Floppy Disk
6. Turn the disk drive unit on. Ensure that the green
LED goes on and that shortly thereafter the red
LED turns on for a second or two and then turns
off, If the red LED does not come on for a second or
two and then turns off; go back to step 1 above.
NOTE:
In step 7 below, the computer is turned on
while depressing the SHIFT and CTRL keys.
Cold start is also accomplished (with power
to the computer already on) by depressing
the RESET button (located on the rear of the
PC-8300 while depressing the SHIFT and
CTRL). See Figure 700-27 Rear Side View
of the PC-8300.
7. While depressing the SHIFT and CTRL key
simultaneously, turn on the PC-8300. Ensure that
the red LED on the disk drive lights for a second or
two and then goes off. If this does not occur, go
back to step 1 above.
8. Proceed to the auto start setting procedure.
700 - 17