Sharp Mz-1f16 User manual

-

MZ-IF16

SHARP

SERVICE

MANUAL

CODE:OOZMZIF16//-E

MINI FLOPPY DISK DRIVE UNIT

MODEL

INDEX

MZ-1F16

THIS SERVICE

MANUAL

MUST

BE

USE

WITH FD55(

L)

SE

R-

VICE

MANUAL

1. SPECIFICATION _

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

_

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

2

2. SYSTEM BLOCK

DIAGRAM

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

3

3.

POWER

SUPPLY BLOCK

DIAGRAM

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

4

4.

TROUBLE

SHOOTING PROCEDURE

OF

POWER SUPPLY

......

"

..

, 5

5.

POWER SUPPLY CIRCUIT

DIAGRAM

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

7

6.

SIGNAL

POSITION

OF

CONNECTOR

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

9

7. STRAP

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

10

8. PARTS POSITION

..........

-

......

,

.......

"

.........

_

......

10

PARTS GUIDE PARTS LIST

SHARP CORPORATION

1.

Specification

Outline

The

MZ-1

F16

is

an

external expansion mini-floppy disk unit designed for

use

with

the

MZ-5600 Series Business Computer_

It consists

of

a pair

of

thin type mini-floppy disk drives. The unit should be used for

the

third and fourth drive units of the

MZ-5600 Series Business Computer.

Specification

________

~M=odrun~~e

____

----~~~1U6L.--~------

__

----

______

-------------------------------

Recording capacity 640KB x 2

Tracks 80 tracks

Sectors

16

sectors x 2

Recording medium 5-1/4" disk

Power supply Local Voltage 50/60Hz

Power consumption 50W

Operating temperature 10°C to 35°C

Operating humidity 20%

to

80%RH, w/o moisture condensation

Physical dimensions 118

(W)

x 331

(D)

x 189

(H)

mm

Weight 6.0

kg

Accessories

Instruction book, drive number label, power cord.

Connection procedure

(1)

In

the

first place, make sure

that

all

powers are off

to

MZ-5600 and peripheral units.

(2) Interface

the

MZ-1

F16 with

the

MZ-5600 using

the

MZ-1

C43

Mini-floppy

Disk

Interfacing Cable option. The cable end at

the

MZ-1

F16 side must

be

connected

to

the

connector located on the upper part

of

the rear panel.

(3) After connection

of

the cable, secure connectors tightly

at

both sides

of

connectors

using

screws.

~

I

'"

I

/

HEAD

LOAD

)'

r-r---------------------------------,

2

SELJ

n

DRIVE

ICI

;

INDEX

~

SHORT

PIN lOSOI

5

SELO

4 Z

7

SELl

r-

34 3 m

9

SEl2

~

WITHOUT

TERMINATOR

11

MOTOR

ON

0

13

DIRECTION

::t:J

15 STEP

L-

17

WROATA

r-

'9~~

~

L

23 NR PRO

25

RD

DATA

26

SIDE ONE DUST-1357ACZZ

24

READY

r

....

;---

- -

-1

14Pin

I : le SOCKET

:

9?9995'9

:

l ~

TERMINATOR

330n x 7

r

DRIVE

lOJ

OAr~P-s~.....

8

SHQRTPINlOS11

~

Y:

~

2

B\;;-"

I

~

pj

WITHOUT

TERMINATOR

I v I - ~

1

AI

I 0

Y, ~

d,""

B~

"':::-.:

~

IMZ

1F16 drive CO)

r-----c

+5V

; DUNT-1357ACZZ

120n

GND

GNO

+5V

2

~igPG2

IGreenl

4

POWER SUPPLY

UNIT

I

4

IN

PUT

N

.

en

1

CD

3

ID

0'

o

'"

C

~.

..

III

3

~I

-

CO

3.

Power

supply

Block

DIAGRAM

3-1.

Block

diagram

1 :

sw

T1

, ,

i~

;:

1---1~------<:J

+12V supply

.~

o

>-+-+-----1

,z

f---i-t--:----'O

'i-5V

supply

T2

(Fig.

1)

3-2.

Shown

in Fig. 1

is

the

block diagram

of

the

power supply

circuit.

Souce

power

is

first eliminated

of

noise through

the

noise filter, rectified, and

it

then

charges

the

capacitor

of

the

filter. When this

DC

voltage

is

impressed

to

the

power switching circuit,

it

starts

to

oscillate

so

as'

to

convert

the

DC

voltage into a high frequency AC (20KHz

or

more) power, which

is

rectified

through

the

high

frequency

ferrite

transformer

(H)

to

produce

+5V and

+12V supplies. Both

outputs

are stabilized by means

of

the

controller. As each

of

outputs

is

supplied

to

the

controller,

control

signal

is

fed back

to

the

primairy side

by

the

means

of

the

saturable

reactor (T2). This control

signal changes

the

oscillation

fiequency

by controlling

the

switching

transistor

drive

current

so as

to

stabilize

outputs.

4.

Trouble shooting procedure of POWER SUPPLY

4-1.

Tools required

The following tools

are

required for

servicing.

4.

5V

11.3A and 12V11.3A loads

1. Oscilloscope

5.

AC ammeter and

voltmeter

2.

Voltage regulator (Slidac)

3. Voltmeter (digital voltmeter)

4-2.

When R1

is

open

Since this failure may possibly be due

to

short circuit

of

ac

line capacitor, RC1, C4, or Q1,

the

cause

has

to

be checked

in

accordance with the flowchart below. -

Flowchart Phenomenon

and

others

Replacing

component

Gl

Set

the

oscilloscope

to

the

follow·

( Start

ing

range.

Voltage range: 50V/div

~

Time range: 10us/div

Replace

R1 with the new

one.

® Shut off

the

AC

supply immedi- Replace

the

following components

l

Gl

ately, when

the

ammeter coupled with new ones

in

this case, because

Connect the oscilloscope

to

the

AC

line increases abruptly. there may be possible destruction

in

probes

between

the

emit~

these components.

ter and collector

of

Q1.

01,

RC1.C4.Cl,C16

~

® @ Should 01 be found

in

failure,

there will

be

need

of

replacing

Gradually increase the

the

following components, as

they

AC

voltage using *Slidac. may possibly be

in

destruction,

too.

~

@

02,03,Dl,D3,Rl1,RS

Replace

the

defective @

component with

the

new Put

the

load into connection

in

NOTE: Should 01 be found

in

fail~

this case and ensure

that

the

ure, there may be possible destruction

one. following waveform appears.

in

RS,

too.

When

Step

(2)

is

carried

~

@

out

with

RS

in

open state,

it

causes

Gradually increase the

r-

to

add

dc

voltage between

the

collec-

AC

voltage using *Slidac h

tor

and

the

emitter

of

01 so

that

DC

and

ensure appearance

of

voltage may not decrease even after

the waveform shown

in

the

ac supply

was

shut

off.

So,

care

FIG·2.

320V

must be exercised

in

this case

to

~

avoid continuous impression

of

the

DC

Check proper output

of

voltage.

+5V and +12V, respec-

tively.

-~

-

J,

1--35"S-

( End ) (Fig.

2)

* Slidac = Variable Voltage transformer

-5-

4-3.

When

R1

is

not open ._ J

Find

the

cause according

to

the

procedure shown

in

below.

Flowchart.

(~

__

S,ta_rt

__

)

~

G)

:

1'-,,'

Wavetorm_does

__

Wav.eform

: nbtappear..

i.];

'-'

1-:'

appear,s.:-:

",

"

·.l,i~',_n

;@J:

_

..

~-<

:'j

;:-,J

"WaJef~~rnLcippears

at

, " ,

..

,

.tHe

,beginning,;;:

but

I

..

j,~~';

,disappears~soofr.

'i;

I

',,;_'

:

.Gradua'lIy,,_

incre~se

_

the,

....

"

.~C;:

voltage

using:vol~age

.'

.....::

"regtil<ttprSlid"cand

en;

_

sure"

app~ara.nc;:e-

of

.th~,

.......

.;wavef~rmlhqW~)nFig.2:

J fo

')

',o'_,'"'

~I

.

';':'

'I:,

',;';

:

f':~;~?~~~J~~~~vn~~~t~'

~

End

)

."

'

.

,!,,:

phenomenon

and

other~

ing

range.

Voltage range:

Time range: 50V/div

10us/div

@TheWaVefQ.r.mb.elow.willappear

in

this case lAC JOOV).

i';;

~J.-,

,.;

"',iI'.".

"'"'-'-W""

..

r.;.;..;.'.··'

•..•....

.

v,,::.\

20,,3

(Fig3)

Qutpotvoltage

will

bel

to

1.5V

(+5\1

output).

@ When

the

AC

voltage

is

increased

by means

of

the: Slidac,

the

wave-

~orm

appears

at:the

:beginning,

but

it disappears

'_"

aMd

;becomes

DC

;

1,<1'

:

yoltage ,when

the

AC

voltage

is

further;'lncreased~

'-i'

I,

-r:~~J

~}?'~~W:i,~g;

CO,~~-Qf1~ot-

may be

in

failure.

.04

•.

05.

D6,

Qa

*08

and,

Q5".'may

rarely_

be

in faiiure.

"1'

,'",

.

The

following component may be

in

, failure.

03,

1D6/Q4,05, T2, R

11,

R20

-,

;',

*Rl

t;'R20,

and

05

:may'

rarely

be

in

failure.

,

,i'

'-'j

.,.,'"

NOTE:

RVl

may

possibly

be

in failure,

in

the

output

voltage does

not

reach

the

given rating (4V).

~,,6-

5.

Power supply circuit DIAGRAM

5-1.

Power

supply circuit for 100V series

&.

'w,

""

'w

&.

filGBS24

AS

,;

-7-

.n

~

-"-

..

".

'"

'l0J0f

~f

""

AI3S,""B0875@A

-

MZ-1Fl6

~,

"

eo,

,~"

m

..

."

.I2Y

,~"

c,~w

."

~"

~

.n

.a

'"

.,Do

."

,~"

,""

.,"

'a"

a.sw

2 DND '"

5-2.

Power

supply circuit for 200V

series

w

"·'onr'

'

...

:

I:"

)

;.;

; -

T-=-

~8-

MZ-[F[6

6.

Signal Position of Connector

No

1

3

5

7

9

11

13

15

17

19

21

23

25

34 [I

========:::::J

2

33

ITo

FD-55FILII

25 (From CPU)

25

Connector Signal Position

(From

CPU

)

To

IF16

AND

Signal Name

No

Signal Name

No

Signal Name

SEL 3 2

HEAD

LOAD

1

INDEX

4 3

SELO 6 5

SEL 1 8 7

SEL 2

10

9

MOTOR ON

12

G

11

N

DIRECTION

14

0 13

STEP 16 15

WR

DATA

18

17

G

N

WR

GATE

20

19 D

TRACK

0 22

21

WR

PRO 24 REDY 23

RD

DATA

26

SIDE 25

27

29

31

33

J330n

J

rn

IDipSWI

ITolF161

MFD

ITo

FD-55FILII

No

Signal

Name

2

4 HEAD LOAD

6

8

INDEX

10

SEL

0

12

SEL

1

14

16 MOTOR ON

18

DIRECTION

20

STEP

22

WR

DATA

24

WR

GATE

26

TRACKO

28

WRPRO

30

RD

DATA

32 SIDE

34

REDY

Dip

SW

Position

Dip SW Select

IMZ1F161

1 ON SELC

2 ON SELD

NOTE:

ON

position mean

SW

is

set

to

A side.

Terminator resistor must be installed.

1 OFF

2 OFF

-9-

7.

Strap

...

-

.-

'lis

DSO

U:;I

:HM

BSg

DS3

MX

HS

DSO

pI

HM

",

DS2

DS.3

MX

i

,

"0

0

.::.l

0 0

-

D

nO~

0 0

IF.

0 0

-8. Parts position

. J

;?:,

Drive

C

SIDE

',,'

.

i • i

VR

" "

-»1

0 0

ML

NO

TERMINAT()1>

0 0

IU

RES

ISTbR

I

111--1

'

HL'

,

• ,

SM

/'

M

'_I

..

PM

0 0

VD

i"i "

",J'

0 0

VI

0 0

RE

Drive

0

SIDE

VR

ML

NO

TERMINATOR

IU

.

-,

,-,

i RESISTOR

HI-,

I-'·W··

l/

SM

PM

0 0

VD

0 0

VI

0 0

RE

D SIDE C SIDE

-10-

[I]

Exterio

rs

NO.

PARTS CODE PRICE

NEW

RANK

MARK

1

DUNTK

13

B

2ACZZ

B F

2

DUNTK

13

66ACZZ

AZ

-

3

GFTAR1014ACZZ

AC

4

LANGK1012ACZZ

AK

5

LHLDW200BSCZZ

AB

6

PSPAX1005ACZZ

A F

QACCV6620QCZZ

AV

7

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AS

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AW

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14

GFTAS1013ACZZ

AF

15

XBPSD30P08KSO

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16

XBPSD30P18KSO

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17

XBPSD40P06KOO

AA

19

XBBSC30P0600Q

AA

20

XBPSD30P06KSQ

AA

21

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22

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AN

23

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AC

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27

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AN

28

DUNT

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BX

DUNT

1100ACZZ

BU

21

13

9

12

"

~

20

PART

DESCRIPTION

RANK

E

I/F

PWB

unit

E LED PWB unit

'---

D Lid for connector

D

"AnRle

for PWB

---

------

D Mini clump S 5 S 5

C S acer

for

PWB

C

AC

cord Europe & Others 22DV

C

AC

cord (UK &

So.

Afri~_

C

AC

cord For

Australia)j6A

250Vi

E Mini

flo~y

disk drive

D Frontm!nel

D Cabinet

D Chassis -

D

SHARP

Badge

C Rubber foot

D Lid

C

Screw

3X8KS)

C

Screw

C Screw

4x6K

C

Screw

3x6

C

Screw

3X6KS

C

Screw

X3P+6S/S)

C Plug

for

AC

cord

BS

with

fuse

D Caution label for Inst. book

U.K

D Caution label

for

cord U.K

D

Label

U.K.

on~

D Protector

for

AC

OIUR

So.

Africa)

C

AC

lu

So.

Africa

E Power supplv unit

for

2QOv

series

E Power supply unit

for

1

DOv

series

/.?\21

• i

, '

.---~

18

-J-

I

!'i

18

MZIFl6

-

28

,

~b'lZ1P16.

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Electoronic

Parts

NO.

PARTS

CODE

.'

1

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2

QCNCM1254CCOB

3

QCNW

1024ACZZ

4 Q S ,,-C Z 6 4 1 4 A C Z Z

5

QSW

Z1018ACZZ

6

VRD

ST2EY121J

7

VHPGL9PG2//

1

8

QCNW

1025ACZZ

rn

Packing &

Others

NO.

PARTS

CODE

1

RMEMRI017AC74

2

TCAUS1150CCZZ

3

TLABZI035ACZA

4

TLABZI051ACZA

5

TLABZI087ACZZ

6

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7

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8

SPAKC1471ACZZ

9

SPAKAI009ACZZ

10

S S A K H 4 0 0 1 K C Z Z

11

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12

S S A K A 5 0 0 4

CC

Z Z

13

SSAKA0006UCZZ

PRICE

NEW,

PART

RANK MARK RANK

AC

B

AC

B

BC

C

AD

C

AM

B

AA

C

AC

B,

AD

B

"

PRICE

NEW

PART

RANK MARK RANK

BM

C

liB

0

AB

C

AB

0

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0

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0

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0

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AC

0

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0

AA

D

AA

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,

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1'.

T

ION'

-','

,

i,1

Connector

;?pin

Connector-

2

in

Connector'

cable'

I

re

socket 14cjn .'

DiD

SW

Resistor

(1/4W

1200'

+5%-'

, . , ---.

. CED Gl9PG2)

LED

cable

,

..

-,

,

" !

" _,; L " C ", , , "

-,

" "

.

.,-,

DESCRJPTIQN

' '

Media

Caution

--

-

~

-, '

Drive

No

la'bel

ABCD)

..

Drive

No

label

EFGH

DD

label

Instruction

book

~

Packinll

cushion

Packing

case

Cord

sleeve

Vinyl

bai 500X500mm

Vinyl'baR"

14QX26Dmm

Vinyl

ba.'!"',

100

X

300mni

Vinyl

bag

50X60mm)

,

@]

Electronic

parts for 200V

series

j-'u

....."',

supply'

NO.

PARTS

CODE

;

~

i~

~,

~!~~

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,E30

36.31£,/

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V

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DESCRIPTION

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______________________________

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of

2

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Cemer

:

re

or

5W)

.

tal

resi

cor

~~2WOi-)--

________________________

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resi:or

~~2~W)

____

~

______________

~~

~n

~

.~

12V

Re"tor,

1.25W)

Re' stor 'nJ

1.5W)

[R:

-2-

MZIF16

@]

Electronic parts

for

200V senes power supp y

NO

PARTS CODE

44

VRD-S

EY

7

45

VRD-S

EY

7

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PART

DES

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3-0D)

Iadiaor

!adiator

:oil

[5J

Exteriors

for

200V series power supply

P

1-

//

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0

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XIPS

007

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5:889,

ID

20

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A

cl.

2

12

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: switch

Inlet

Terminal

Bushing

lushlng

ut

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DESCRIPTION

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SHARP

SHARP CORPORATION

Industrial Instruments Group

Reliability & Quality Control Department

Yamatokoriyama, Nara 639·11, Japan

1984

June

Printed

in

Japan

®

Sharp MZ-1F16 User manual

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