Sharp MZ-80SFD Manual de usuario descargar pdf (Pagina 14)

• Error

chart

for disk system

Error code

[Error message]

Contents

Check item and corrective action

50

1)

Drive fails

to

be ready.

[NO

READY] o Diskette

is

wrongly inserted.

o Fit diskette in correctly.

o Motor does not normally run.

o Check belt and/or drive motor assembly.

o Index detection circuit

is

improper.

o Check index lamp, drive

PWB,

index sensor.

o Flat cable

is

improperly fit

in

or

broken.

o Check flat cable.

o

No

select signal comes

at

drive.

o Check floppy disk I/O card.

o Drive unit door (front door)

is

not

o Close front door.

closed.

o Diskette

is

faulty. o Replace diskette.

o Write operation

is

attempted

in

write

protect state.

54

1)

Drive

[UNFORMAT]

o Head position

is

not

aligned. 0

Replace drive unit.

(off-track state)

o Head and amp. circuit are defective.

0

Replace drive unit and/or drive

PWB

unit.

2) Diskette

o Diskette not formatted

is

in

use.

o Initialize again, or replace diskette

o

CRC

error

in

ID

field.

o

ID

field

is

broken down.

41

1)

Drive

[DISK DATA

o SEEK error

o Check drive unit and diskette

ERROR]

Replace,

if

required.

o Head shift

is

improper.

o Replace drive unit.

2) Diskette

o CRC error

in

data field.

o Data field

is

broken down.

iO

Initialize again,

or

replace diskette.

o

ID

field

is

defective.

o Data mark detection error.

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