Epson PX-8 User Manual page 89

3) Close the microcassette compartment cover.
Fig. 4.3
d) Manual operation
The microcassette drive can be operated manually by using the System Display.
3) Place the PX-8 in the System Display mode by pressing the
1
HELP
I
key
together with the
1
CTRL
1
key.
***
SYSTEM DISPLAY
***
<RAM DISK) 009 kb
<USER BIOS) 000 256 b
<MENU DRIVE> CBA
00/00/00
(SUN)
19,58,35
<MENU)
(AUTO START>
(MCT MODE> stop, nonver-ify <COUNT> 65535
(MENU FILE> 1 .COM 2 .BAS 3. 4
- Select number or- ESC to exit ..
l=password 2=alarm/wake 3=auto start 4=menu 5=MCT
«-
I <-
Imount
fi
Idir-init
-»
ler-ase
0001
Fig. 4.4
The bottom line of the System Display can show two states depending on whether
a tape has already been set up or 'MOUNTed' in the drive. Section 4.1.1(f)
describes this in detail, but for now it is sufficient to say that because a cassette
tape accesses data sequentially along the tape and the directory is storeg at the
beginning, it is not practical to write the new directory to tape each time a pro-
gram is saved. Consequently it might be possible to change tapes without up-
dating the directory, and the MTOS would not be able to find a file or program.
There is a safeguard built in to prevent this.
It
is not possible to move along
a tape if the MTOS is in control of the tape.
If
a tape is MOUNTed then the
bottom line of the system display will show:
remove/
4-4
REMOVal and MOUNTing of the tape is described in section 4.1.5f.
If
the
display shows REMOVE and you wish to continue with this explanation, press
the SHIFT key and function key PF1, then wait until the display shows the
bottom line:
«-I
<-
Imount ./dirinit
-»
lerase
0001
The bottom line shows the microcassette drive functions assigned to the program-
mable function keys.
1
PF1
I:
Fastforward
1
PF21:
Play
1
PF7 I: (
' I
"' - ::S::-:H=IFT=---I and
1
PF2 I ) mount
1
PF3
I:
Stop denoted by the
m
character
1
PF8
I:
(I
SHIFT I
and
I
PF3
I )
dirinit
I
PF4
I:
Rewind
I
PF9
I: (I
SHIFT
I
and
I
PF4
I )
erase
I
PF5
I:
Counter reset
These are best understood by following an actual operation.
1) Insert a blank microcassette. Look at the tape counter setting in the [COUNT]
field on the 4th line of the System Display. The counter may be 00000.
If
not, press the
I
PF5
I
key to reset it.
2) Press the [fIT] key and the tape will move forward rapidly. Press the
1
PF31
key and the tape will stop. Look at the tape counter. The value will indicate
that the tape has moved.
3) Press the [PF4J key and the tape will be rewound. The tape automatically
stops when the end of tape is reached. The count should then be 00000.
4) Press the
1
PF21 key and the tape will move forward slowly.
If
something
is recorded on the tape, sound is produced from the speaker. You will not
hear this unless the volume is turned up.
It
is not possible to record sound
using the PX-8 but it can play back audio tapes. The tape count increases
as the tape moves.
5)
If
the tape contaihs files, they can be erased by pressing the
1
PF4
I
and
1
SHIFT I keys simultaneously. This is primarily intended for erasing audi-
ble sound.
4-5