Sharp ZQ-3000 - Memory Map; Current Check; Replacing Batteries

ZQ-3250
6.Memory map —_
SYSTEMAREA |
USER AREA
0000H
0420H
, 2000H
Ill (82KB)
4000H
6000H
_ 1 (8KB)
- 7FFFH =
8000H
| 7 (@KB)
AQO00H
CE2
CO000H (32KB)
IV (82KB)
EOO0H
FFFFH
* PLA is selected so that CE1 is outputted to the former half space
of 32KB and CE2 is outputted to the latter half of 32KB. (CE1,
CE2: The chip enable output for addressing the external memory)
* Either when one 8KB RAM is used or when two 8KB RAM’s are
used, the former haif RAM address is assigned to 6000H level.
This allows continuous assignment of addresses when two RAM’s
are used.
RAM capacity
aaa eat Memory type (D7H)
8KB (I! only) 2
16KB {I + Il)
32KB (III only)
64KB (Il) + IV)
ZQ-3000/3050
ZQ-3200/3250
(In case of error) 0
7. Conduction test
* Check conduction be-
tween @) and @).
Max. 109
@)
=
Backup
battery
©
terminal
=
Electrostatic
sheet
(Plain
serface)
8. Current check
(VCC = 6.0V)
1. Press the OFF key.
2. Measure the current value. (After 1 sec.)
When OFF: 11.3,:A or less
3. Press the ON key.
4. Measure the current value.
When ON: 365z:A or less
9.
Note
for
Battery
replacement
Replacing batteries
Batteries used in the Organizer.
[Woda _[ Oy
“or20aa [2 [Uritoperaion
The
standard
built-in
clock
is
powered
by
the
operating
batteries.
Type
Lithium battery
Lithium battery
Precautions
when
replacing
the
batteries.
Before
repiacing
the
battery,
be
sure
to
press
to
turn
the
power
off.
Do
not
replace
the
memory
backup
battery
when
the
operating
bat-
teries
are
depleted.
When
the
operating
batteries
become
weak
and
you
turn
the
power
on,
"EME
“
will
be
displayed
and
the
following
display
will
appear
temporarily:
Please
replace the
operating
batteries!
BATT.
if
the
batteries
become
weaker
(the
alarm
or
the
key
beep
does
not
sound),
the
power
may
go
off
during
operation
or
the
Organizer
may
fail
to
turn
on.
The
memory
contents
will
still
be
retained
by
the
memory
backup
battery.
Replace
the
operating
batteries
to
avoid
loss
or
alteration
of
data.
Before
removing
the
batteries
for
replacement,
record
important
infor-
mation
on
paper.