All and more about Sharp PC-1500 at http:/lwww.PC-1500.info
4-1-2. Block diagram
.,
Sot1
wv
1c
So<l
rd
CE- 153
A
S·
232C
&
Par
allel
1
n:
e1
1ace
8K8
Mem
o
ry~
~
~~lu~
~
h
CE-158
IT
:.=::
=====
T~
T
====
==~
lJ
~
·
~
o•
CO
I
Oi
G
raphic
P11
nt
c:1
CE-150
4-1-3. Power supplies
CE-153
Ca
sse
ae 1
.-AJ
L O
pe1l'l
tin9
f'.r-
Sys;em
Tape Recorder Prog
ra
m
Ta
p&c
CE
·152
(PC-1500, CE-150, CE-158, CE-159)
CD
PC-1500
and
its peripheral units (C
E-1
50, CE-158, CE-159)
are
d
ri
ven independently
by
dry
batter
y.
Ni
-C
d
batter
y,
or
li
thium battery.
Wh
en
the P
C-
1500 is
co
nnected
wi
th
per
ipheral.
KAM,
ROM, 1/ 0 PC. C
MT
l/ F,
and
U
AR
T
arc
dr
i
ve
n by VCC
or
VGG suppl
ied
from the
PC-
15
00.
CD
When the Ni-Cd
baucr
y of the
CE-
150
is c
har
ged
capable
to drive
the
PC-1500. power
is
supplied from the
CE-
150
to
the
PC
-1500
and
therefore the
batter
y of the
PC
-1500
does not consume. In addition, it
driv
es the
dr
i
ve
r of the
pr
int
er
and remote control
relays.
CD
Th
e
Ni
-C
d battery of the
CE
-158 drives the
dr
i
ve
r
and
recei
ver
of
the
RS
-232C serial
interface
and
the
Centron
ics
par
allel interface.
0 When the
CE-
159 is
in
co
nn
ection with the PC- 1500, it is ope
rat
ed by VGG
of
the PC-
1500,
and
its memory contents
can
be
retained by the interna l lithium battery when
dis
co
nnected from the P
C-
15
00.
87
Do
not
sell this PDF !!!
To Next Page
