Sharp MZ-8BI03 Bedienungsanleitung

)

SHARP

SERVICE

MANUAL

PDSMX81013-MZ

ft'

Ill.

RS-232C

Serial Interface Card

MZ-SBI03

, "

•.••

......

....

.......

GP-IB Interface Card

MZ-SBI04

FEATURES

MZ·8BI03

• A

serial

interface card

for

MZ·80B. capable

converting parallel 8-bits data

serial data

transmit

and

receive.

• Integrating

two

channeis

interface conforming

RS·232C (JIS·C·6361)

into

one board.

• Employment

Z·80SI0/0.

one

Z·80 famiiy, enabling

deal

with

various interrupts.

MZ·8BI04

• GP·IB interface card

for

MZ·80B, capable

freely controlling measuring instrument groups

conforming

standards

~E-488

and enabling

low

cost, automatic measuring system.

•

Capable

programming

improved BASIC.

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

SHARP

CORPORATION

~-------Contents--------

MZ·8BI03

Specifications.................................................

General information

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

Description

circuit

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

Troubleshooting. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . • . . . . . . . . . . • . .

Test program

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

PWB

and

circuit

diagram

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

MZ-BBI04 Specifications

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

Description

circuit

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

Troubleshooting

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

PWB

and

circuit

diagram

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

Packing method

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

................•.•....•...••....

Replacement parts list

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

MZ:..8BI03:.SPECIFICATIONS

,~,~,

Item

Communication me'thod

Standard

Control

LSI

Number

channels

20mA current loop

Baud

rate

Number

baud

rates

Character length

Parity

bit

Stop

bit

Mode

Interrupt

Port

address

Operating temperature

Storage temperature

Specifications

Asynchronous

In compliance

with

EIA

RS·232C

Z·80SIO/0

2 (Channel A and Channel B)

Changeover

allowed

for

orie channel (Channel

Can

set

independently

for

the

two

channels (Manual setting using switch)

10(75,110,

150,300,600,

1200,

1800,2400,4800,

9600 baud)

6, 7

8 bits (Selection

software)

Odd, none

even

Either terminal mode

modem mode

can

selected

for

ellch channel

(through the

use

jumper chip).

Z·80 vector

interrupt

can

used.

Manual setting

with

switch

O°C-

50°C

-25°C-

80°C

(Note) The above·mentioned specifications may be changed ir, the future

for

improvement

the product.

" '

)

• Introduction

Ther~

are

two

methods

data communication between

computer

and external equipment: S-bit parallel and

bit serial.

The serial interface card MZ-SBI03 (hereinafter referred

as "interface

~ard")

permits data communication by the

bit serial method. This interface card

manufactured in accordance with EIA RS-232C (the Electronic Industries

Association RS-232t::), and used for data communication with

other

equipment having interface based

RS-232C.

•

Functions

this

interface

card

The interface card has

the

following functions.

One card has

two

channels, each

which

capable

transmitting/receiving data independently.

One

the

ten baud rates can be selected by operating

the

switch

the

card. Baud rates can be set independently

for

the

two

channels.

Output

connector signals

external equipment can be

either terminal mode

modem mode through the

operation

the

jumper chip.

4. This interface card can be used as 20mA current loop for one channel.

•

Applications

Equipped with

the

above-mentioned functions,

the

interface card has a variety

applications. Some applications

this very versatile serial interface card are shown below.

Data communication between computers on telephone line via acoustic couplers

2. Printer

3. Plotter

4. Digitizer

5. Color display

Card reader

7. Magnetic tape equipment

•

)

•

3::

....

TxDB

Current

ex»

RS-232CI Loop

RxDB Drive

Current Loop Cl)

Select 3 0

DTRB

CA)

Co"",,'

••

' q

Mode Channel B

Select

Connector

(J-2) v m

RS-232C

Drive / 0

Rml

CTSB

DCDB

I (J-1) "

....

H~~'Cb

furt

H Z

Add'~~

Address -

Bus Select TxDA .

',"~

W 0

Circuit

RxDA "

RS-232C Mode Channel A • '.""',.1-,.

RTSA Drive Select

Connector

CTSA

DTRA I (J-3)

I:D

DCDA

+5V~

['m

Power Chlnnel A

.~;~";

Supply BR2 Baud Rate Setting

(SW-21

Blud

Rate

t',

Circuit

v..;..#

-12V

Oscillltion

f~";

Circuit

Channel B

.:\

BR1

Baud Rate Setting

(SW-31

r·._

---

• Construction

Circuit

The

serial

interface

card

consists

the following six blocks.

• Block 1 Hybrid

circuit

HOOO2PA

..,.

IhO'

It"

•

1111

.1JII1i

rntI

• •

1t11'T

CTITI

'1'

'10

.10

DTItI

rnn

• RT1il

DCDI

••

.,.0

....

N.C

IY"CI

N.C

,.DA

••

It'l.

CITA

••

DCD"

+.v

.,,,oYA

'''''CA

) IND

U. U.

•

••

• Block Diagram

Hybrid IC

Data BUI

Driver

<:>

0 Channel A

Read/Writa

.Reglsters

) O2

Bus

fG:

Intetnal Bus

Interface

Logic U U

D Channel B

Internal Read/Write

Control

Registers

Logic

IORO

RESET

ExlNT

I!"terrupt

Control

"-r--

Logic

IEI

IEO

)

BRl

BR2

• •

..,

....

"TI'

C'I'I

DT.'

DCOI

'IDA

'hO&

ItTI"

CSTA

0'"''

DCO'

Channel A

Data

Control

Channel B

Data

Control

TxDA

RxDA

RTSA

CTSA

DTRA

DCDA

W/RDYA

SYNCA

TxDB

RxDB

RTSB

CTSB

DTRB

DCDB

W/RDYB

SYNCA

• Block 2 Port

Address

Select Circuit

147

144

145

142

SW-I

LS2&'h2

le4

5.51\"6

RA I

+5V

le4

le5

.SV

• Block 3

Baud

Rate

Oscillation

and

Setting Circuit

R~OK

REiE'f

.SV'-~""'+'"

.••

....

+'V

___

---='.::j4

MCI4411

ICl

RH·iX0297PAZZ

(MC144ll)

ASSIGNMENT

(Top View)

3 22

6 19

8 17

9 16

10 15

12 13

Rite

Sllect

RI.I

Select 8

Cryltlljn 21

• " Cryltl1o..n:

R.Mt

sw-z

IBI

IC3,4

RH·iX0190PAZZ

(SN74LS266N)

ASSIGNMENT

(Top View)

1A2

BLOCK DIAGRAM

Divide...

Rill

Select

LotiC

(

2 F3

16 F4

3 F5

4 F7

5 F8

7 F9

Fl0

Fll

f12

FI3

F14

18 F16

19 F16

)

• Block 4 ,

Driver, Jumper, Switch and Connector Circuit

./-1

L..

...

~.sf

+IIV"

TIDI

____

-.J

Ic2

, 751

It.

,....---...,

'<1

It.~

_000

~-iI--+-...:cO)(.~c:

ItTlI

----=.~~..,..I'-----

...

-Y.:,

CTII

.~~~.;..-.

...

IC'

l··o'

--,

.,.

'.0

••

2.'111

+IIV

OTIt~-9-~'

•

'--r-...J

,--

OTltl

____

-.I

••

u •

-...,

-IIV

IC2

--'

'OO

DCDI

------c~1<

-'1----

...

"I'A

.10

100

+IZV

./-1

I··""

.DA

-:..,:

...

....

-IIV

r!>

CH"NNEL-I

CHANNEL-A

~~II

r~-M

'L""1

ICI

,..

:...,---------------

....

7511

21 , '

L._,

•

It.OA

----_.....c~;.c:-

...

.10

___

...

•

ca.

ItTIA

--It!.l~

:I;

••

01'

'1--

....

___________

~t::f-j------------------~@

~i~IIA

4r~1

~'.

L._

•

••

DTltA

___

.~.~II::

01'

'[~

~'is~1A

'L_

j==~...,-,---------------r®

DCDA

-----....:.·OM~.

Iml'

CSTA

• IC2, 8 RH·iX0305PAZZ

(SN75189A) CONT·

ROL

•

IC7,8

RH·iX0085PAZZ

(SN75188N)

PIN ASSIGNMENT

(Top View)

PiN ASSIGNMENT

(Top View)

Vcc+

CONT·

ROL

GND

CONT·

Vcc-

1A 1V

GND

ROL

• Block 5

r .

• Block 6

Power Supply Circuit

I~/.

aND

IC13 DUNTK0064PAZZ

(12N10K1)

eH'"

LA1---V

Bus

Interface Circuit

+IIV

aND

cia

-IIV

GND

Vi"

3. V out

N.C

~------------------------------------------------------------------------~

(

The

serial

interface card consists

six blocks and,

each

block functions normally, a faulty operation

caused

external factor (Ex: program, the counterpart machine, etc.)•

• Circuit Blocks and Check

Behavior

Block Circuit Behavior

1 Hybrid Z-80SIO

built

and

te~t

the function by the test program.

2 Port

address

Check

address

code

set

SW-1

(DIP switch)

output.

selector·

the

output

does

not

agree,

wired-or

output

low

level.

3 Borate Check

MC14411

outputting.

oscillation

and

setting

r--

Frequencies

are

follows:

.. 153.6 KHz F8 • 9,600 Hz

76.8 KHz F9 .. 4,800 Hz

38.4 KHz

F11

.. 2,400 Hz

28.8 KHz

F13·

1,758.8

19.2 KHz

F14·

1,200

sure

that

two

more switches

SW-2

and

SW-3

(DIP switch)

are

not

turned

on. Tolerable deviations

are

±0.1%

for

each

frequency.

In measurement, consider that the waveform

MC14411

varies

according

the load capacity

because

MC14411

CMOS.

4 Drivers, Check the status

input

signal.

jumpers, •

Output

75188 } High level:

-10V

....

12V -

switches and Input

75189 Low level: 10V

12V

connectors •

Input

75188 }

Ci9h:

0.8V)

TTL

level

Output

75189 Low: 2.5V

•

reset,

the

output

terminal

the hybrid

in the high

level

(high

level

TTL

level).

5 Power supply

sure

that the voltage

+5V ±

5%.

•

line

sure

that the

oulput

DC-DC converter

is:

• +12V line +12V ±lO%,

-12V

±10% 0

•

-12V

line

Bus

interface Since there

no circuit part, examine

the

signal

input

the board

normally.

The hybrid IC

not

actuated

unless

the clock signal

applied

the

terminal

the hybrid I

• Faulty

symptoms

and

connected

circuit

blocks

Circuit blocks Faulty symptoms Circuit blocks Faulty 'symptoms

1 2 3 4 5 6

and

probable

causes

1 2 3 4 5 6

and

probable

causes

0 0 0 0 o Transmission buffer 0 0 o +12V or

-12V

line deviates

not

empty. over ±10%.

o Control

does

not

(Causes)

return from the o Faulty TL497AC.

transmission routine o Faulty 12N10K1.

in test program run. o Short circuited load.

(Causes)

o Short circuited electrolytic

o Hybrid

doesn't capacitor.

function normally. •Other.

o!p

clock

inoperative.

o Wrong port

address

selection.

•Abnormal

power

supply.

Othe~.

(

0 0 0 o Error

message

gener-

Borate oscillator

does

not

ated

from

Z·80SIO • output.

(parity error, overrun

(Causes)

error, framing error, o Faulty MC14411.

etc.) o Faultycrystal.

(Causes)

o Two or more

dip

switches

o Wrong borate setting.

(SW-2,

SW-3)

turned

on.

o Abnormal borate o Faulty borate clock input

. oscillator. circuit

hybrid

IC.

o Wrong jumper

set-

o Other. (

ting (J-1,J-2

and

J-3)

o Abnormal +12V

-12V

line.

o Faulty connector.

o Faulty counterpart

machine.

o Other.

0 0 0 0 • •Signal

not input. c

o Control

does

not return

from input routine in

test program run.

(Causes)

o Wrong borate setting.

o Abnormal borate

oscillator.

o Abnormal +12V

-12V

line.

o Wrong jumper setting

(J-1,

J-2

and

J-3) ,

o Faulty connector.

o Faulty opel'1ltion

hybrid

IC.

o FaUlty counterpart ,

machine. (

• Faulty driver

IC.

o Other.

shows

a related circuit.

shows

a related circuit.

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