Sharp Ce-158 User manual

----SHARP----

SERVICE

MANUAL

CE-158

WWW.

PC

·

l500

.INFO

SHARP

CORPORATION

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C-

1500 at http://www.PC-1500.info

SERVICE MANUAL

MODEL

CE-158

RS-232C

Interface

(PC-1500

Option)

CON

T

ENTS

I.

Intro

du

ction . . . . _ .

..

. . . . _.

..

•

...

. . . .

..

. . . . . . . . - . . . - . . . .

2. Specification

....

_

..

...

.

..

.

...

.

...

.•.

- . . . . . . .

....

. . . . - . . J

3. System configuration . . . . . . . . . . . . . . . . . . • . • . . . . . . . • . . . . . . . . . . 2

4.

lllock

di

agram

..

. _ . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 3

S. Circ

ui

t

di

scription . -

..

• . .

..

. .

...

. .

..

.

...

.

...

.

..

. . . . . . . . . . -

4-

8

6. l.si disc

ri

ption .

..

- . . .

....

. . . . . . .

..

. . . . .

....

. . .

..

. . •

...

. . 9- 17

7. IC pin connec

ti

on . - . . . . . . • . . . . . . . • . .

.•

..

...

. . .

.......

1

8-

20

8. Circuit diagram . . . . . . . . . . . . . . . . . . . . . • . . . . . . . . . . . . . . . . . . . . 2J

9.

Co

lor chart

....

.

....

..

.

......

. . . . .

•..

. . .

...

. . . · · · • · · · ·

22-

23

lO. Parts Guide/Parts li

st

. . . . . . . . . . . . . • • . . • . . . . . .

...

.•

· · · · · · · ·

24

- 28

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nto

the

service manual

"PC

-

1500

&

Opt

i

on"

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1.

INTRODUCTI

ON

There

arc

cwo

cypc

s

of

interfaces built-in. One is a general-purpose interface for the communication

between

PC-

15011)

and a

devic

e equ

ipp

ed w

i1h

RS

-232C 1ype

i111erface

, such as personal computor,

pe

ripheral

de

vice

, etc. The 0

1h

er is a centronic$ type

paralle

l inter

face

for

full-scale data proc

ess

ing

pri

nt

ers.

2. RS-2

32C

INTERFACE SPECIFICATIONS

·

rransrnission

ll)Cthod

Applicable standards

Baud

ra

te

Data bit

Parity bit

Stop

bi1

Connectors used

Power supp

ly

source

Po\vcr

consu

n

1ptio

n

AC

adaptor/charger

Ba11ery

capacity

Output s

ig11al

level

Inter

fa

cing signals

Switch

Dilncns

i

ons

W

eigh

t

Acces

sor

ies

Asynchron

o

us

EIA

RS

-232C compliance

50

, 100, 110, 200,

300

, 600,

12

00,24

00

baud, programmabl

e•

5,

6,

7,Sbit

s,

p

rogra

mmabl

e

Eve

n,

odd

, no

n-

pa

rity)

progranunabJ

e

1, 1.5

for

1he character size

of

5. } programmable

2.0

for

the character

sizes

of

6

to

8.

60-pin

male

connector

fo

r connection

with

1he

PC

-1500 or

CE

-150.

25-pin connector,

DB

-

2S(W),

for

connection

wi1h

an

ex

ternal

devic

e.

Adaplorjack.

4.8 V

~

(DC): Ni

-Cd

recha

rg

eab

le

b:lllcry

AC:

120 V,

60

Hz

wilh EA-

21

A

4.8 V m (DC), 0.80 W

EA

-

21

A(120 V. 60 Hz)

For approx. 3 hours of operation

(c

harging:

15 hour

s)

High

le

vel:

+5

V to +

IO

V(3

to

7 Kohms load)

Low

l

evel:

- 5 V

to

-

10

V

(3

l<l 7 Kohms l

o:i

d)

Inputs:

RD,

DSR, Cl), C

TS

Outpu

ts

:

TD

, RTS,

DTR

01hcrs: SC

(F

G)

XI (

POWER

sw

itch)

86 (W) X

115

(D) X

SO

(H)

mm

3

-3

/8

"

(W)

X 4·17/32" (D) X

1-3

1/32" (H)

435 g(0.96

lb

s.)

Keyboard

1cmp

l

a1cs

, join! plales

(1wo

kinds) and

in

struction manual.

• :

In

terminal program mode, the

speci

ftca1ions

of

baud

rate

(600, 1200

:rn

d 2400) is restricted.

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3.

SYSTEM CONFIGURATION

CON,NECTION

OF

PC-1500

WITH

CE-158

CE·

15

8

Po

we

r switch

Joint plate

(A

)

CONNECTION

OF

PC-1500

WITH

CE-150

AND

CE-158

2

PC·1

5

00

""'

CE·158

Connee

tor

for

~

pa

rall

el

interface--

-+1-..:;;;

~~

AC

ad

apto

r

con

nection

jack

Connector

for

RS·232C

""

Jo

in

t plate (8 )

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50

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K.S

·

2J2C

llf

OS

·

:?

S(A)

PAR.=t.

lL

EL

llF

D

A.2$tB

J

4.

BLOCK DIAGRAM

•V'(+

OC

I

OC

V

e:>

CO

Nv

e

rueA

;;,.

GN

I>

$i.:1

:;

18

8

SNl'S

l

l}!)

A

•

Ve-

r-

-----

--

----

-

---

i't

l

'N

.

lt

JT

.------1.~

tf

=::i:::::=:-

-

·

:::

:::::::::::

--i--

---

~

···

C.

MOS

UAA

T

n=

=

=I

-

~

COP1

A54

ACI<

'"

'

,,.,

,"

It

•:

..

)~)

t:• (-c)l;!I

H

r--

--+•

-

-+

--~+

----------l}

A

lE

cu

s

r

--

+l

-

-'---

-1--1-

----~---

--

AOH

ES

SUS

RCM

S

C>Gll

XXX

CO 0

l!o:l

t;

K

H

~

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not sale this PDF!!!

Ej'.

-----

PU1, OM

Eo

!-

-"-----

-""·

•vcc

s

;NQ

tiO

C::O

l

lNl!C

l OR

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ut Sharp P

C-

1500 at http

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5. CIRCUIT DISCRIPTION

• Power >upply

The CE·158 is driven

by

the PC·ISOO power (Vee) and Ni

-C

d

battery,

or through an AC

adapte

r.

The

input

is

fe

d through the DC-DC

co

nverter

to

reach VDO (+

5.0

V),

VC

+ (+9.0 V

),

and

VC-

(-

9.0

V).

Not

el

. Oat"' rlnc 1

i1

1

cr

(

ESD

-H-

1

4B

}

,__,-<>

V

C-

(- 9.

0V)

1W

100C

l

EA21Ay

1

00

1

X2

+

r--

~-

-.

l

ow

ba

tt

ery

det

ec

tion

Circu

it.

,__,-<>

VC

+ (+ 9.

0V

)

DC

-

DC

0.1

)I

f

P.GNO

-+-

-~'----;,_;....

~

'-

--·

S.

GND

1

6V

220µF

Con

Y

OtOI'

1---0

VD

oC

+ 5.0V }

Circuit

,__,..-<)

GNO

• Low battery detection circuit

4

Battery

condition is

monito

r

ed

by

th

e cir

cuit

s

ket

c

hed

below. Signals detected are check

ed

by

the

CPU for each receivi

ng

and transmilting st

ep

through LH58J I

's

PA5

1/0

port.

Be

sides,

SW6

reaches the GND level with

po

wer on,

ther

e

by

turning

on

2SA937R

to

keep

the

low

batte

ry

detection circuir in functi

on

.

+

SOV

11rF

2

SA93

7R

(SW6

}

3.

:lKO

560

KO 150

H438L

L01

Vee

100

KO

RV22KO 2SC2021RS

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at

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• 1 .

....

.

'

c

· ·

~

•• '"

·

~

...

No

te:

While

th

e power s

wit

ch

is

on

,

SW4

and

SWS

arc kept open

to

each otl1cr. V

ee

is

impressed

to the

base

of

2S

C2

02I, and 2

SC202

I and 258822 arc turned

on

.

•

1)

No

te

I : Data

lin

e filt

cr(E

SO.H·l4B)

•2)

Conve

rt

er H1750

•3) 3-terminal rcgul•tor

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POWI

ER

SOURCE

(PC-1500,

CE-150,

CE-158)

PC"

500

CE·1

50

,

,~

.

...

,,

o-e=}--o

1SS9E

~A

INT(:R

(A.t50

AEGULATOA

OAIV€R

1001

)(

"1

•

Al;

MOTE

"'

=

su

M

CI

P

(:UIT

,:.

3

...

• •

••

vcc

V«

lO

W

941i

t.t-c:d -

C-':Q#fl

""~

..c

s

=

-

REY

oFF

-+--

ori-t--oi=r:

.. ~

·

'

V

e.a

' '

-

-·~·--·~·

-

'

Vu

'

L

'

V

¢.

'J

¢ L

Voo C

E-1

58

6

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at

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0 D D 0

p p p I)

B D B B

4 3 2 1

_T_l_R_C_L_O_C_K_

_.

PEOU

T 110

14

5696

Vee.

'l

oo

V

ss

• C

LOCK

circu

it

(S

W

2)

V

ss

15

0K

cl--

~~~~

-<

.,:-7=~~

'-..>-

~

CF

CTLA

C

TLe

1

54KHt

According to co

mm

ands f

ro

m the CPU, the frequency dividing

ra

tio

is

c

han

ged to make a cl

ock

pulse

co

rres

po

nd

ing to respecti

ve

baud rates. In initi

al

settin

g,

af

ter turni

ng

the power switch on,

the baud

ra

te

of

300

is

automatically provided. Thus a specified baud rate can

be

obtained with

ch•nge command from

the

CPU. The commands 3rC delivered

to

LH581 l ports

PCO

thru PC4,

PA6

or

P

A7

.

(T

/R clock= baud r3tc X 16)

•

CDP

1

854

ACE

CH

IPSELECT

The con

di

tions

to

se

l

ect

this chip are

that

CSI

and

CS3

arc

at

HIGH p

osi1

i

on

and that CS2 is at

LOW

po

si

ti

on

.

The

circuit isassh

own

be

low.

A015(1)

jd

)

A0

14

(1)

---

--l

-

·>--

- -

CS2

-

----

A012(1)

CS

3

.--

•

)

CS

1

A09

(1

110

8

AD

I RO/

WR

A0

15(t

A0

14

(1

~

)

·

:

~

I

)

\ .

11

0 13 (0

11

0 1

2(

1

A011 (0

11010(0

1109 (1

ME l

(1

_J

r-

40H1

38P

Y1

h

o,.

er;;

G1

c

B

A

Of-

0

of-

YI

• G1 •

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0200

...

.............

WRITE

)

0201 ................ READ

7

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•

TPB

ClRCUIT

Y,

---

---.

0---

--~

TPB

M£ ,

Y, 0

PRO

~«;

CK

CL

V<x:

•

INT

CIRCUIT

A15

(1 /

A13\G)

-l-~

==

::::_

__

__,J

G>b

A1

2{

1)

r-

--

-iG

1

A11

(11

)--

--

+---

-C

A1

0(1

) 8

A9

(1)

- - - -

+-

-

---l

AS

ME

l

(1 )

-

--

~

X>-

- T

PB

The

lefr.hand circuir

is

10

produce

one

pu

l

se

at

ME,

(Y1) . At Y1 and

<Pos

.

however

,

two

pulses

are

generated

up

to

TPB.

The

re.

fore

, a stage

of

OFF

i.s

added

to

produce signal Q.

Thus

TPB consi

sls

of

Y1, Q,

and

¢OS·

INTERRUl'T

PORT

ADDRESS

(

DEOO)

ME,

I

DFFF

INTERR

U

PT

will

be

effective

Oll

ly c

ondilion

of

MEI, A9,

AlO

,

All,

A12

, AB

Al4

, A15,

(In

tcrrupl

will

proceed

adress

of

between

D£00

to

DFFF)

•

LH58

11 CHIPSELECT

8

AD1

S

(1

/

--

-<

AD14

(1) - -

-I

~O

H

1

38P

10---<)!G

>a

-

-4

-!:::===

:::::_-_J--<jG

>,•

A0·

13(0)

A012

(1)

A0

·

11

(0)

--

-----

-

f-

-IC

AD t

O(O)

8

A09

(0)

A

'--

---'

ME

1 (1) -

----

- -

--'

Vss

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ress

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be used)

Sharp CE-158 User manual

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