EXIDY 6400 Manuel utilisateur

EXIDY FLOPPY DISK SUBSYSTEM: Operation Manual

Connects directly to the Sorcerer's 50-pin edge connector.

Has its own built-in controller card so it does not need an

S-100 expansion unit.

Uses 5 1/4 inch soft sector single-sided floppy disks.

308 kilobytes (quad density) per disk (formatted) for the 77

track per disk drive

160 kilobytes (dual density) per disk (formatted) for the 40

track per disk drive

Stores any CP/M files, including Extended BASIC programs, Z80

assembly language and machine language programs, Word

Processor files, COBOL-80 and FORTRAN-80 programs and files.

(CP/M is a registered trade mark of Digital Research, Pacific

Grove, California.)

FEBRUARY 1980

TABLE OF CONTENTS

CONFIGURATION



1.1 General



1.2 Purpose of equipment



1.3 Configuration



1.4 Physical Descriptions



CHECKOUT



2.1 Unpacking



2.2 Installation and safety



2.3 Setting up



2:4 Floppy Disk Subsystem add-on



DISKETTE OPERATION



3.1 Operating instructions



3.1.1 Flexible diskette loading



3.1.2 Flexible diskette removal



3.2 Diskettes



3.3 Diskette handling recommendations



3.4 Back-up diskettes



TROUBLESHOOTING



SPECIFICATIONS



5.1 Model 6400



5.1.1 General



5.1.2 Power



5.1.3 Environmental



5.2 Model 6402



5.2.1 General



5.2.2 Power



5.2.3 Environmental



PHOTOGRAPHIC ILLUSTRATIONS



Write

protect

tab

Write Protected

Write

protect

notch

Index

access

hole

Unprotected

1. CONFIGURATION

1.1 General. This section gives a physical and functional

description and specifications for Exidy's Floppy Disk

Subsystem for the Sorcerer Computer.

1.1. Purpose of equipment. Exidy's Floppy Disk Drive is a

compact disk memory device designed for random-access data

storage, data entry and data-output applications. Typical

applications are intelligent terminal controllers, micro-

computers,



word-processing



systems,



data



communications

systems, error logging, micro-program logging and point-of-sale

terminals. Exidy's Floppy Disk Drive meets ANSI

specifications.

1.3 ,Configuration. You can use your Floppy Disk Subsystem in

two configurations:

1.3.1 One stand-alone unit. This uses a 50-conductor

cable (supplied) from the Sorcerer to the unit and

an AC power cord. The cord is supplied with the

unit, but not attached to it.

1.3.2 One unit plus an add-on. There are two cables, a

34-pin flat cable and a 4-conductor power cable.

These two run between the main unit and the add-on.

1.4 Physical Descriptions. The Floppy Disk Drive can be

mounted vertically or horizontally. However, when mounted

horizontally, we recommend that the Drive be positioned so that

the PCB is on the bottom side.

To prevent accidentally erasing important data on a

diskette, use a write protect tab, as shown in Figure 1. When

a write protected diskette is inserted, the write protect

sensor disables the write/erase circuits in the drive.

Figure 1: Write Protect Option

2. CHECKOUT

2.1 Unpacking. During unpacking be sure that all tools are

non-magnetic and do not inflict damage to the unit. As you

unpack the unit, inspect it for possible shipping damage; file

all claims promptly with the transporter. Save the original

packing material; the safest way to transport the unit is in

its original packing.

Your Exidy Floppy Disk Subsystem comes packed in two protective

cartons, one within the other, what is called "floater"

packing. Foam is glued to the outside of the inner carton, and

glued to these are corrugated pads which fit inside the outer

carton, forming protective cushioning all around the inner

carton. The dimensions of the outer carton are 11 1/2 x 10 1/4

x 22 1/4. The outer shipping carton can be opened carefully at

the end with a sharp instrument. Carefully open the inner

carton by hand, because a sharp instrument might damage the

unit. After you open the end of the inner carton, if you see a

foam pad, remove it. If you can easily slide the unit out, do

so. If necessary, you may wish to open the other end and push

the unit out.

Upon first opening the inner carton, you may encounter the rear

of the unit, recognizable by the folded-up power cords and the

heat sink (black metal louvers). Grasp the unit by the heat

sink and gently pull it out.

The FDS unit comes with two cords, a flat 50-conductor cable

and an AC power cord. These cords are not attached to the

unit, and must be hooked up as explained below.

2.2 Installation and safety. Locate your equipment with both

physical and electrical considerations in mind, paying

attention to these points:

2.2.1 Never block or cover the air vents at the top and

back of the Sorcerer or the Floppy Disk Subsystem.

2.2.2 Avoid dusty places, and do not place the equipment

near radiators or other heat sources. Dust can

damage diskettes and disk drives; overheating can

affect performance.

2.2.3 Avoid smoking near the unit; smoke contaminates the

drive's read/write heads and damages diskettes.

2.2.4 As with all electrical appliances, keep the unit

away from moisture.

2.2.5 Never push anything into the unit through the air

vents.

2.2.6 Never remove the top cover; the unit's electrical

components may burn or shock you.

2.2.7 Protect the unit from falls and impacts.

2.2.8 During a thunderstorm, we recommend unplugging the

Sorcerer and the Floppy Disk Subsystem, to protect

from power line surges.

2.2.9 If the unit produces an abnormal sound or smell

during operation, turn the power off, unplug the

power cord, disconnect the unit from the Sorcerer

and contact your dealer.

2.2.10 Do not use alcohol, benzene, thinner, chemical

solvent or any other aromatics to clean the metal

case. Do not use abrasives of any sort. A soft,

non-abrasive cloth (cheesecloth is the best)

dampened only slightly with a mild dishsoap

solution is all you need; be sure to wipe dry with

a similar, dry cloth.

2.3 Setting

112

2.3.1 Before plugging in the Sorcerer and the Floppy Disk

Subsystem, determine whether you will be using 100,

110, 220 or 240 VAC. Your unit should have been

shipped to the proper specifications. To change

voltage operation, look at the rear of the unit.

Directly to the right of the on/off switch is the

AC power module, covered by a sliding plastic door.

Remove the AC cord and slide the door over the

power cord (three-pronged male) plug. Swing the

lever marked "FUSE PULL" out and towards the door.

This removes the fuse and allows the fuse lever to

clear the PCB. Remove the AC power line select PCB

(see

photo).



(The PCB is 1.6" x 0.8"--needle-nose

pliers work well to remove the board, or a small

hooked instrument inserted in the hole at the

center of the closest edge of the board.) Each

side of the PCB has printed on it one number: 100,

110, 220, 240. For 100 VAC operation, insert the

board such that "100" is readable; for 110 VAC

operation, insert the board with "110" readable; do

the same for 220 or 240. The transformer handles

50 or 60 Hz equally well.

NOTE

Be certain never to turn either the unit or

the Sorcerer on or off with a diskette

engaged in the drive!

2.3.2 With all power off, do the following:

2.3.3 Supplied with your unit is a 50-conductor ribbon

cable. Plug the 50-pin female connector into the

fifty-pin male plug (two parallel rows of 25 pins

each) at the rear of the disk unit. Keep the cable

flat. Attach the other end of the cable to the

Sorcerer's 50-pin edge connector (labeled EXPANSIO.N

BUS).

2.3.4 A ground wire is attached at the back of the disk

unit. Attach this wire to a ground on the back of

the Sorcerer.

2.3.5 Attach the female end of the power cord to the

three-pronged male plug at the back of the disk

unit and connect the cord to the AC line.

2.3.6 Turn on the unit. Turn on the Sorcerer.

2.3.7 If you have a 48K Sorcerer, the top of RAM will no

longer be at BFFF, but BEFF. (With smaller-memory

Sorcerers, you will notice no difference.)

2.3.8 Ensure that front access door opens and closes.

2.3.9 Now you are ready to boot CP/M, your Disk Operating

System (DOS), the interface between the disk drive

and the computer. Insert a system diskette,

following the instructions in Section 3.

2.3.10 When you see the Monitor prompt character (>), type

GO BFOO <carriage return>. (BFOO is the GO ADDRESS

or BOOT ADDRESS, used to bring up CP/M.)

2.3.11 The select light should come on on the front panel

of the drive. The drive motor should come on, and

you should hear a click (as the read/write head

drops).

2.3.12 CP/M should come up, by displaying a sign-on

message on the screen, which looks like this:

CP/M on Exidy Sorcerer for xx Track Disk

32K CP/M VERS 1.43/3

(where xx is 40 or 77, and A> is the CP/M prompt,

telling you that CP/M is 22 and awaiting a command.

2.3.13 If the select light does not come on, turn off all

power, and then try reversing one end of the 50-

conductor cable (by giving the cable a half twist).

If that doesn't work, see your dealer. Trying to

repair the unit yourself will void your warranty.

2.4 Floppy Disk Subsystem Add-on. You

may purchase from your

Exidy dealer or distributor an optional add-on disk drive unit.

This unit comes with a 34-conductor cable and a power cord.

The add-on receives DC power from the main unit and does not

require voltage adjustment (as explained in 2.3.1).

Attaching the add-on unit requires removing the cases of both

units. You should have your dealer do this for you.

When the two units are hooked up, you may access the second as

described in the publication An Introduction to CP/M Features

and Facilities.

NOTE

Please do not attempt to repair or modify

your drive. Doing so will void your

warranty.

3. DISKETTE OPERATION

3.1 Operating instructions. Secure both power and I/O

connectors prior to disk loading.

3.1.1 Flexible diskette loading.

3.1.1.1 Apply power to drive.

3.1.1.2 Open drive door by pushing door latch

button.

3.1.1.3 Remove diskette from its storage envelope

and insert in the drive. The index hole

and tab must be on the left side of the

jacket and the label on the upper surface.

Push the diskette gently forward until a

"click" is heard.



(See Figure 2.)

3.1.1.4 Close door by pushing door down until

latch secures the door. (This engages the

diskette.)

3.1.2 Flexible diskette removal.

3.1.2.1 Open the drive door by pushing door latch

button (beneath door). The flexible

diskette automatically ejects so that it

can be easily removed.

3.1.2.2 Always store diskettes in envelopes to

protect the data.

3.1.2.3 Close drive door.

Figure 2: Diskette Orientation

3.2 Diskettes. The Exidy Floppy Disk Subsystem uses industry

standard 5 1/4 inch single-sided quad or double density (or

high quality single density rated) soft-sectored diskettes,

available from your Exidy dealer.

The disk drive has a write protect feature, which protects

diskettes from accidental alteration or erasure. Each package

of diskettes comes with special write protect tabs; to protect

a diskette, place a tab over the diskette's write protect

cutout, as in Figure 1.

Diskettes wear out in time, as any magnetic recording medium.

The disk drive has an automatic feature which raises the

read/write head off the diskette when there has been no read or

write to the drive for three seconds, thus extending the life

of the diskette.

3.3 Diskette handling recommendations. To protect the

information on the diskette, use reasonable care in handling.

Follow these recommendations for longer diskette life and

trouble-free operation:

3.3.1 Write on diskette jacket label first, and then

fasten it to the diskette. (Excessive pressure can

damage diskette.)

3.3.2 Do not use a writing device which deposits flakes

(as lead or grease pencils) to write on a diskette

jacket label.

3.3.3 Do not fasten paper clips to diskette jacket edges.

3.3.4 Do not touch diskette surface exposed by jacket

slot.

3.3.5 Do not clean diskette in any manner.

3.3.6 Protect diskette from magnetic fields.

3.3.7 Return diskette to envelope when removed from

drive.

3.3.8 At all times protect dis-kette from liquids, dust

and metallic substances.

3.3.9 Do not exceed these storage environmental

conditions:

Temperature:



to 125

F (10

Relative humidity: 8 to 80%

Maximum wet bulb:



F (29.4

3.3.10 Store diskette when not in use.

510C)

3.4 Back-up diskettes. Since diskettes wear out in time, we

recommend making back-up copies of system diskettes and other

important diskettes, and frequently updating them.

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