Unitron U-2200 Operation Manual

U

2200

U

2200

U-2200

U-2200

U-2200

CONTENTS

Digitalizzazione di

Tiziano Garuti

CHAPTER 1 INTRODUCTION

CHAPTER 2 INSTALLATION

CHAPTER 3 U·2200OPERATION

CHAPTER 4 VIDEO

CHAPTER 5 INPUT/OUTPUT

APPENDIX

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UNITRON 2200 PERSONAL COMPUTER

The U·2200isa

the

infonnationonthe

in

APPENDIX A lists several references which may aid you

la~ages

and operating systems.

CP/M~

compatible microcomputer. This manual covers

config.n8tion. installation and operation. The bibliography

in

useofvarious

CHAPTER 1

INTRODUCTION:

The U-2200 system has two major parts: Computer chassis and detached

keyboard. A coiled cable connects between

In

this manual

machine,infiG.

'·1.

all

descriptionsofdirection are basedonyour

them.

facing the

On the frontofthe chassis,asshown in

and

a keyboard connector.

FIG. 1-2

FIG.

,.,

Front

I

fiG.

1-2, there are a power indicator

P8ne4

The rear panel has several connectors (Fig. 1-3) for Disk Drives, Video

Monitor, Cassette Recorder and Joy stick.

required
with Apple

to

make a functional computer.Italso has 5 extention slots compatible

II

peripherals. These slots are numbered

#1,

#3,

#4, #5 and

#7.

GAME TAPE TAPE

I/O

OUT

The chassis contains

of

chassis. and you
board. The power supplyisa high frequency switching mode and proYides four
DC

Voltages: +5V, +12V,
ACor220V AC, switch selectable (FIG. 1-4). The
to

the

computerboard via a

Fig.ne 1-5.

will

see

IN

the

the

-5V,

G-pin

VIDEO DRIVE

computerboard and power supply. Open
power supply on

-12V.

The sourceofpower

connector. The

1

the

ri~t

outputofpower supply connects

connector

DRIVE

2

side above

the

canbeeither 110V

pinoutisshown

the

cover

computer·

.[][].

220V

110V

::[J]

FIG.

1-4

,...-------------------_.----------------------_ ~

1 GND +12V

, ,

~

COMPUTERBOARD:

The U·2200

includes the

ROM

6502

(Read only Memory). IC's (Integrated Circuits) and

-

-----

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

FIG. 1-5 Power Pinout

is

a single board computer. The computerboard (Fig.

and Z·80 microprocessors,

-5V

2

-12V

RAM

+5V

--------

(Random Access Memory),

--

+5V:

-.

-_._~

other

1-6)

components

in

FIG,1-6

VIDEO DISPLAY:

Display type: Memory
Displaymode: Text, Low-resolution Graphics, High.Resolution Graphics.

Text capacity:
Character type: 5x7
Character_set: Upper/Lower case ASCII

Character modes: Nonnal, Inverse, Flashing
Graphics capacity: 1920 blocks (Low-Resolution)

In

the

marked "VIDEO". This connector allows

closed-<:ircuit video monitor. Itisa female

and a
rear conner, there
"?odulator that can connecttoeither

Video

soft-switch functions.Ifyou have an
you can plug
"SO-<:ol

input"

960

53760 dots (High·Resolution)

centerofrear sideofthe

isa4·pin.connector

the

outputofan

giving you automatic video switching.

mapped display

characters (24 lines, 40 columns)
dot

matrix

Computerboard

computerboard thereisa metal connector

you to attach a -rable between

(ie. auxiliary video connector) for an

TV

SO-<:olumn

ina40

in

setorvideo mointor. The U-2200 has

SO-<:olumn

video into a 2-pin Connector marked

by 4S array.

a 2S0 by 192 array.

RCA

phono

jack. On

card pluggedinslot #3,

the

U.2200

the

right

RF

3

THE

CASSETTE INTERFACE:

Keyboard

On the right of the rear edgeofcomputerboard are two small black packages

labeled "Tape in" and "Tape

These are miniature earphone jacks into which you can plug two cables,
one for recording and the other for play back, which has a pair of miniature
earphone plugsoneach end. The other end of this cable can be connectedtoa
standard cassette tape recorder so
audio cassette tape and read it back

THE

DISK DRIVE CONNECTORS:

The U-2200 computerboard includes the disk controller's functions which
made by the advanced technology of
connect two drives. The connectors are located at the rear leftofthe computer­board. This controller lin dedicated slot

If

you wishtouse more than two disk drives, plug extra disk interface cards

extention slots and connect drivesasyou need.

THE

GAME

purpose of the Game I/O connectoristo connect special input and outpUt devices
to

enhance the effect of programs, especiallyingame programs. This connector
allows youtoconnect three one-bit inputs, four one·bit outputs, a data strobe,
and four analog inputs,

KEYBOARD:

with a coiled cable

U·2200 will be through the keyboard.Inthe keyboard case thereisan 8 ohm
speaker controlled
location number 49200. Any referencetothis address lor the equivalent address

-16336orhexadecimal SC030HI

I/O CONNECTOR:

To

the right of cassette connectorsisa 16-pin socket for game I/O. The

The

U·22OO

has a detached keyboard which connectstothe computerboard

by

out".

that

your U-2200 can

again_

PAL@

#61

all

of which can be managed by your programs.

by

a 15·pin female connector. Most of your contact with

a soft-switch. This soft·switchisassociated with memory

will

cause the speakertoemit a click.

sequencer,soyou can directly

can drive two 5%" floppy disk drives.

save

information on

Number of Keys: 72

Coding: Upper/Lower case
Output: Seven bits plus strobe

Power requirements: +5V at 300

Special key: Numeric Keypad and

function keys

in

FIG.

VIDEO MONITOR

To operate the U-2200 system, you

TV

se~.

If youdonot have a monitor and yourTVset does not have a video input,

you

Will

need an

!V

channel frequency for display on a TV receiver. Remember, when a television

IS

u~d,

monitor.

the quality of the display will notbeas good as the display on a video

RF

modu!atortomodulates the video

MA

'-7

ASCII

Keyboard

will

also need a video monitor or a

output

signal on a standard

4

5

CHAPTER 2

INSTALLATION:

There are four connections you must make. They are power. video outPUt,

keYboard, and disk drive. They are normally made on

The power supply

110/220V

AC

selectable. check

is
and set the switch to suit. The power receptacle
Insert the end

Video

for

RF

the RCA connectororthe video

of

the

supplied power cord into this connector.

outputisprovidedateither

modulator.Ifa normal video

CM,ltputofan

the

RCA

monitorisbeing used, it can connect

set, connect ittotheRFoutputofanRFmodulator.

The keyboard has a coiled cable ended with a 15·pin O·type connector.

Plug this connector

the

On

drives. Connect

If

the 80<:01umn cardisused. plug it into slot #3, and

of

the

8O<:0lumn card connects to

to

the

male connector on

left rearofthe

your

master driveinthe connector labeled "drive 1".

computerboard are

the

the

2-pin connector on
The U·2200 provides an auto-switching function between
display.

If

can be

plugged into any

a printerisused, plug

empty

the

printer interface card into slot #1. Other cards

slots accordingtotheir instruction manuals.

GETTING STARTED

is

The U-2200

a dual processor computer system. Both the

microprocessors are supported for full, compatible operation

the

Turn

The screen

power' on after set-up. You will hear a

will

show

the

messageinFIG. 2-1.

the

computer

is

locatedinthe

connectororthe

RF

modulator.Ifyou

front panel.

two

20-pin connectors for disk

in

"beep"

rear panel.

your

upper right corner.

4-pin connector

the

the

riltltofslot #7.

80/40

character

6502

one computer.

from

power source

to

usea·TV

video

output

Text

and Z-80

the

speaker.

UNIT

RON

DUAL PROCESSORS COMPUTER SYSTEM

WITH

AUTO·BOOTING CP/M.

DISK

CONNECT
AND INSERT

PRESS ANY

DRIVEINDRIVE 1 CONNECTOR

CP/M

SYSTEM DISKETIE.

KEYTOSTART!

FIG. 2·'

If

therei,no responseorsomething strange happens, please turn the power

off and check

1:
2:

3:

4: Peripheral cards

the

following:

Keyboard connector and its direction.
Power connector and power source switch.
Video connector and 80<:01umn videoifinstalled.

in

slots.

5: Disk drive connections.

is

make sure every connection
does

not work, press "control-reset"

the correct message appears on

Once

diskette into drive 1 and press any key

If

a message appearsasFIG. 2-2, it means th'at

the

disk controller. You can press any keytotry again.

···CAN

NOT FIND DISK CONTROLLER.

PRESS ANY

correct, then turn the power on again.Ifit still

or

check

to

boot CP/M.

KEYTORETRY

FIG. 2-2

The U-2200 has one

It boots

the

system from diskette.

The U·2200 has 24K
switches. Referercing
to

bankO.You

can add a

the

address

ROM

ROMonthe

ROM

CARD for your applicatons.

computerboard.

space split into two banks, switched by soft-

$COAO

will

the

connections again.

the

screen, insert

the

the

computer can

This

ROMisa

switchtobank 1, address

CP/M

system

not

boater.

$COAF

find

6

7