Imsai IKB-1 User Manual

IMSAIIKB-1

INTELLIGENT KEYBOARD

IMSAI Manufacturing Corporation

San

14860 Wicks Boulevard

Leandro. California 94577

Madeinthe

All

rights reserved worldwide.

U. S. A.

January. 1978

CAUTION

FAI LURE TO OBSERVE THESE IMPORTANT PRECAUTIONS

1.

Read

all material before beginning construction.

2.

UseONLY electronic Use

3.

4.

5.

6. Do NOT insert chips in socket before all soldering on the board

7.

8.

9.

10. Prevent

11.

extreme

chips

are

Do

NOT plugorunplug boards while powerison.

Do NOT apply powertoany boardorcircuit before checking each

trace.

Do

NOT Do NOT Use

only specified AC power.

current. Clean

unit

components.

care

inserted in black conductive foam material in

use

nonstandard parts

leave

out

flat

cable

with

quality

with

static-sensitive chipstoprevent static discharge

any construction step.

end

soap

and

rosin core solder.

suchasfusesofa higher current rating.

from touching

waterorisopropyl alcohol

areas

your

of

the system

onlytoprevent

WI

LL

kit.)

is

that

VOID

each

WARRANTY

damage.

component

completed.

may

be

damagetoplastic

(These

and

carrying

12.

13.

14. Do NOT perform any solder work on a board while powerisapplied.

15. Do NOT plug

16. Check power supply voltages BEFORE inserting any boards

17.

18.

Some levelofskilltoprevent

Use

For

To

IMSAI. Kits

repair operations are quite demanding. Do not

ONL

Y a 25

all

assembled

register

watt

or

unplug a chip from a socket while powerisapplied.

units,

your

kit

without

damage

electronic soldering iron

read

for

warranty cards on file

to the boardorthe components.

USER GUIDE section

warranty protection,

attempt

for

assemblyofyour

into

chassis.

for

jumpering instructions.

fill

out

warranty cards

are

NOT covered by warranty.

repairs beyond your

IMSAI

kit.

and

mail

to

KEYBOARD FUNCTIONAL DESCRIPTION

The

IMSA

I Intelligent Keyboardisa unique, programmable keyboard designed parallel or serial computer input device. A number by

the

user

through simple keyboard commands, or under

IKB-1 KEYBOARD

FUNCTIONAL DESCRIPTION

of

keyboard functions

direct

controlofthe

to

be used as a

may

be programmed

system CPU.

KEYBOARD: The

contact

full N-KEY

causing a

. and control keys

SERIAL/PARALLEL OR serial input device. The parallel ACK selectable

- 2400 baud.

ENCODED/UNENCODED MODES: User operateinencodedorunencoded modes. Selectionofthe encoded output keyboard array

KEY PROGRAMMING: character.

UPPER/LOWER CASE: The keyboard upper and lower

CABINET: The cabinet is constructedofhigh System compatible blue. The cabinet houses the keyboard,anaudible beep tone speaker and 3

ED

L

keyboard

ROLLOVER.

character

handshaking. The serial

by

keyboard commands and allow

standard

allowing multiple key depressionstobe used

indicators. The L

IMSAI

for

high

to

are

arrangedina

USASCII

case.

Intelligent Keyboard utilizes a high quality, 63

reliability.

Continuous depressionofa key

be

output

OPERATION: The keyboard

mode

code, while

Arty

individual key

ED

display indicates entry into the program mode, shift, and upper

All

keys

are

fully debounced, and

will

invokeanauto

continuously until the keyisreleased•.Standard alphanumeric

typewriter

mode

supports both EIA and

type layout.

may

be configuredtooperate

supports a full 8 bit parallel

TIL

levels. Serial baud

for

the

selectionofseven

or

system

the

unencoded mode gives the

may

be programmedtooperateinupper case

CPU

programming allows the keyboard to

for

games, music,

be reprogrammedtooutput

quality aluminum andisfinishedinan

separate

mode

user

format

allows the keyboard

key

the

keyboard provides

repeat

with

rates

a raw etc.

arty

mechanical

function,

as a parallel

RDY

rates

from 110

mapofthe

given

ASCII

onlyorin

IMSAI

case.

and

are

to

-

EXTERNAL CONNECTIONS: A computer interface boards.

interface

connection.

An

additional 1

Interface

Spin

2S

D-type connector provides

lines

are

compatible with the

D-type connector allows an external keypad to be used.

for

the

IMSAI

+5V

,1,110

power and

and SIO

KEY

-1

LTR

REVISIONS

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IMSAI

MFG.

CORP

ALL

RIGHTS RESERVED WORLDWIDE

IN

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ALL

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AESERVED

IMSAI SYSTEM IKB - 1 REV. 1 ASSEMBLY

DIAGRAM

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CONNECTOR

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- 1 REV. 1 6/77

SCHEMATIC DIAGRAM

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IKB-l

ASSEMBLY INSTRUCTIONS

"..

IKB-l

BEFORE PROCEEDING Unpadc all keyboard parts and check each

against

disgard anyofthe

the

IKB-l

ITEM

.,.,..

ELECTRICAL PARTS

Resistor

Resistor 30-3150362 1 150 Ohm,

ASSEMBLY

the

parts

list shown below. packing

parts

are

accounted

CIRCUIT BOARD PARTS

IMSAI

PART

3&--2820462

30-3100362

materials

for.

In

LIST

NO.

until

case

part

Do

not

all

of

any

QUANTITY

discrepancies, or, factory,

3 1

conuct

if

you purchased your kit directly

IMSAI

DESCRIPTION

82

100

Customer Service

Ohm,

1/4

Otvn,

1/4 1/4

your local

W,

S%

W, W,

(gry-r-bllc)

5%

(br-blk-br)

5%

(br-gn-br)

IMSAIdealer·

from

the'

immed~tely.

Resistor Resistor 30-4470362 1 Resistor 30-5100362

Capacitor 32-0220020 2 Capacitor Capacitor 32-2202270 1

Capacitor 32-2722070

Diode Transistor 35-2000003 2N3906 LED

~

Crystal 35-5000006 1

30-4100362

32-2010010

35-1000012

35-?IJOOOOI

6

2

5

1 63

3

lK

Ohm,

1/4

W,

5%

4.71<

Ohm,

1/4

W,

5%

10K

Ohm,1f4

pF

Disk

20 .1 uF Disk,

2.2uFTant, 33uFTant lN4148 (ALT: lN914)

Red

3.579545

?lJV

MHz

W,

2SV

5%

(br-blk-r)

(y-v-r)

(br-bik-o)

KEY

-3

ITEM

HARDWARE

IMSAI

PART

NO.

QUANTITY

IKB-l

ASSEMBLY INSTRUCTIONS

DESCRIPTION

,

~

Solder Screw

Nut

Lockwasher 21-3350001 Washer 21-3390001

INTEGRATED

7404

8035

8212 74154 4751

METAL PARTS Keyboard

CIRCUITS

IS-OOOOOOl 20-3402001 21-3120001

(ICfs) 36-0740401

36-0803501 1 36-0821201 36-7415401 88-0000035 1

6O-OSOOOO3

5' 3

3 3

3

1

2 2 4to16

1

6-32x3/8 Phillips

6-32

Hex

tI6

Internal

t/6x1/16"

Inverter

Hex

Processor 8-8lt

Programmed "Key 1

Hytek 056300,

Fiber,

Latch

Decoder

Star

Pan

Head Machine

Black

Rev.

wI

Custom Caps

-

I"

Cabinet Ass'y

SOCKETS

IC

Socket

IC

Socket

IC

Socket

TERMINAL STRIPS - CONNECTORS

Connector

KEY

-4

91~100008(A)

91-1100008(K)

~

23-0800004

23-0800009 1 14

~23

23-0400024

1

(Assembled

1

1 40

1

24

15

2S

IKB-l

Pin Pin

PinEIA,

Cabinet Rev. A

orKit)

Standard

-

ITEM

MISCELLANEOUS

IMSAI

PART

NO.

QUANTITY

IKB-l

ASSEMBLY INSTRUCTIONS

DESCRIPTION

-

"

Spacer

Wire Tape

Speaker

IKB-l

HARDWARE.

Screw

Hardware Nut

Lockwasher

CABINET ASSEMBLY PARTS LIST

Set

21-3600002

22~122005

28-0600003

60-0000OO9

20-3200001

20-3916001 21-1100001 21-3120001 21-33SOOOI

3

3"

1

6

2

6 6-32 Hex, CAD

6

7/16"x1/4" 22AWG, Red 3M

Magic

2

1/2"

jl6-32x1/4" Allen, Button Head, BI. Oxide jl6-32x1

tI6

Internal

Nylon

Tape,

dia. Quam 24AQ728

1/2"

Star

1/2"

Sq.

Allen, Button Head, BI. Oxide

-

"

METAL PARTS Cover Digibezet

Cabinet Bottom 93-4100002 Cabinet Cover 93-4100003

MISCELLANEOUS Washer

Spacer

Allen Wrench

93-21d0008 1

93-2100007

21-3390001

21-3600005 27-0000001 1

IKB-l

1

6

9OS-6O

wi

IKB-l IKB-l

tl6xl/16" Fiber, Black tl6xl

5/64

Red Polarized

Silkscreen Legend

~ev.

C

Rev. H

1/161Round

Nylon

Filter

KEY

-5

TRACE CUTS ()

1.

Refer right designated

;)

2.

Cut sharp c:uttlng tool; knife.

to the diagrams below

and

Joute

to

the

trac:es Ioc:atedinStep 1 with a

be

cut.

the

three

e.g.,

and

(3) trac:es

an

to

the

XACTO

IKB-l ASSEMBLY

INSTRUCTIONS

~

o

L·

:-.

•

FIGURE 1: Trace Cuts

•

-

•

---.J

-

KEY

-

-6

IKB-I

ASSEMBLY

INSTRUCTIONS

COMPONENT

IC

INSTALLATION

In

the following steps,

"Install"

location.

1)

2)

appropriate holes. Solder

3)

corner from board

You

will

remaining pins. The number

specified instance,an18-pinICIs

()

3.

()

4.

INSTALLATION

an

integrated circuit

In

this context, "Install" means:

Insen

that Be

followedinorder soldered.

Identify the top, the keyboard circuits (lC's) side assembly facilitateICinstallation.

Install the specified IC'satthe locations:

theICinto the

theICis

sure

that

1 and

Wltll

be

instructed when

of

pins on a panlcular

in

the assembly instruction step (for

of

the board. Refer

diagramonthis pageInorder

you

will

be directed

at

a'

specified

PC

board. Ensure

oriented correctly.

all pins

ttle remaining pins

called out as P18.)

PC willbemounted from this

are

the

pinatthe

I.

This procedure

to

hold the

to

or

component, side

board.

All

seatedInthe

farthest

IC

onto

solder

IC

will

integrated

to

follOWing

to

the are

the

be

of

the

to

III

~

-

•

-..

•

is

•

,

•

__

()

8212atU6

()

8212atU4

()

74154atU2

()

74154atUI

()

S.

When

you

are

satisfied

positioned correctly, solder ALL

pins

on

remaining board.

the solder side

r

~

,---~~~

(P24)-_

(P24)-~

(P24)--~

that

all

lC's

of

o.f

are

the

••

·l

••

•

••

•

,

•

,

•

KEY-7

•

,

•

J

Imsai IKB-1 User Manual

Specifications and Main Features

Frequently Asked Questions

User Manual