Byte? Hyperion Maintenance Manual

0

Lia.-.~

...

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o

ny

IVIII

MAINTENANCE MANUAL

C

Part

Number:

650000-000

(

. B:YTEC

MANAGEMENT

CORP

(C) 1983

0

C

0

0

Federal

Communications

Commission

Compliance

The

Hyperion is subject to

Federal

Communications Commis-

sion (FCC l rules.

The

Hyperion

has

been

tested

and

found to

comply

with

the

limits

of

Class

B computing devices in accord-

ance

with

the

specifications in

Subpart

J of

Part

15 of FCC

rules

.

The

Hyperion

has

Canadian

Standards

Association (CSA)

approval,

and

conforms to

the

Government

of

Canada

Telecom-

munications

Interconnection

Requirements

(CS-03l.

UL#86H2

CSA LR33921-6

FCC

!dent

. CTJ7YM3000

FCC Regist. CTJ7YM-704333-DT-E

(Cl

Copyright

- Bytec

Management

Corp .

1983

All

Rights

Reserved

Published

by:

BYTEC MANAGEMENT CORP .

8 Colonnade Road

Ottawa, Ontario

K2E

7M6

01 April 1983

Warranty

The

Dynalogic Info-Tech Corporation

warrants

this

Dynalogic

Personal

Computer

Product to be

in

good working order for a

period of one

year

from

the

date

of purchase from DYNALOGIC

or

an

Authorized Dynalogic Computer Dealer. Should

this

pro-

duct fail to be

in

good working order

at

any

time

during

this

one

year

warranty

period, DYNALOGIC will,

at

its

option,

repair

or

replace

this

product

at

no additional charge except

as

set forth

below.

Repair

parts

and

replacement Products will be furnished

on

an

exchange basis

and

will be

either

reconditioned or new.

All

replaced

parts

and

products

become

the

property

of

DYNALOGIC. This limited

warranty

does

not

include service to

repair

damage

to

the

Product

resulting

from accident, disaster,

misuse, abuse, or non-Dynalogic modification of

the

Product.

Disclaimer

The

information

in

this

manual

has

been carefully prepared and

checked for completeness

and

accuracy.

There

is, however, al-

ways

the

possibility of omission or error.

In

such event, Bytec

cannot

assume

liability for

any

damages

resulting

from

the

use

of

this

manual.

Warning

Circuit

boards damaged by

attempting

IC replacement shall

result

in

reduction or cancellation of

return

credits or voidance

of

the

warranty.

Trademarks

ii

HYPERION is a

trademark

of Hyperion Division of Bytec.

MS-DOS is a

trademark

of Microsoft Corporation.

IN:TOUCH

is a trademark

of Hyperion Division of Bytec.

0

0

0

Contents

Chapter

0

FCC Compliance/Edition

(i)

Warranty

(ii)

Contents

(iii)

List

of

Illustrations

(iv)

Chapter

1

Introduction

Chapter

2 Block

Diagrams

Chapter

3

Fault

Analysis

Charts

Chapter

4 Removal

and

Replacement Procedures

Chapter

5

Parts

List

Chapter

6

Preventative

Maintenance

Chapter

7

Packing

and

Shipping

Chapter

8 Disk Drive

and

CRT Adjustments

Chapter

9 Specifications

list

of

Appendices

Appendix "A"

Appendix "B"

Appendix "C"

Diagnostic

Program

Diskettes

Part

Number: 7 40003-000-00

7 40020-000-00

Loop

Back

Plugs

Part

Number: 200038-000-00

200039-000-00

CRT

Alignment

Mask

Part

Number: 200079-000-00

iii

list

of

lliustrati.ons

iv

Figure

2-1 Hyperion Block

Diagram

Figure

2-2

System

Board Block

Diagram

Figure

2-3 Display &

1/0

Board Block

Diagram

Figure

2-4 Modem Board Block

Diagram

Figure

3-1 Power

Harness

Voltages

Figure

3-2 CRT Display Quality

Figure

3-3

Character

Set

Diagnostics

Figure

3-4

Attributes

Diagnostics

Figure

3-5 Low Resolution Diagnostics

Figure

3-6

High

Resolution Diagnostics

Figure

3-7

Character

Set

Diagnostics REVOl

Figure

3-8

Attributes

Diagnostics REVOl

Figure

3-9 Low Resolution Diagnostics REVOl

Figure

3-10

High

Resolution Diagnostics REVOl

Figure

3-11

Attributes

Diagnostics 40

Character

Mode REVOl

Figure

3-12

Serial

Port

Loop Back

Plug

Figure

3-13

Parallel

Port

Loop Back

Plug

Figure

3-14 Modem Diagnostics

Figure

4-1 Keyboard Removal

Figure

4-2 Keyboard PCB Removal

Figure

4-3 Housing Removal

Figure

4-4

Modem Board Removal

Figure

4-5

Board Assembly Removal

0

Figure

4-6 Disk Drive Removal

Figure

4-7 Power Supply Removal

Figure

4-8

Discharging CRT Anode

Figure

4-9

Speaker

Removal

Figure

4-10

Fan

Removal

Figure

5-1

Hyperion Assembly (External)

Figure

5-2

Hyperion Assembly (Internal)

Figure

5-3

Keyboard Assembly

Figure

8-1 Disk Drive

Test

Points

0

Figure

8-2 Motor Speed Adjustment Resistor

Figure

8-3

Track

00 Waveform

Figure

8-4

Head

Azimuth

Waveform

Figure

8-5

Radial

Alignment

Waveform

Figure

8-6

Radial

Alignment

Adjusting

Set

Screw

Figure

8-7 CRT Board

Adjustment

Locations

Figure

8-8 60 HZ CRT

Test

Pattern

Figure

8-9 70 HZ CRT

Test

Pattern

C

C

V

C

C

l

C

CHAPTER

1

INTRODUCTION

0

0

()

C

Maintenance

Manual

Introduction

1.0

Introduction

The

Hyperion

portable computer is a powerful 16-bit micro-

computer

with

full

graphics

and

optional

built

in

telecom-

munications

capability. Most of

the

advanced circuitry is con-

tained

on

two densely populated

multi-layer

printed

circuit

boards, which

makes

the

Hyperion one of

the

smallest

and

easiest

computers to

repair.

This

manual

is

intended

to

assist

in

isolating problems to

the

sub-assembly level,

then

to provide factory approved removal

and

replacement

techniques.

The

Diagnostic

Diskettes

are

used

with

the

Fault

Analysis

Charts

(FA Cs)

in

Chapter

3, to provide

rapid

fault

isolation.

The

two

diskettes

contain

the

same prog-

rams,

however,

they

are

used

with

different

revisions

of

computer. Refer to

Chapter

3 for

details

of

which

diskette

to use

with

each

revision.

The

removal

and

replacement

techniques

will

assist

in

correcting problems

and

provide for

testing

to

verify

fault

correction

(Chapter

4).

A Bytec

Hyperion

Maintenance

Course is available to autho-

rized

dealer

technicians.

This

course provides detailed technical

information

and

hands-on

repair

experience. Anyone attemp-

ting

repair

of

the

Hyperion

without

benefit of

the

course is

encouraged

to

seek

technical

assistance

from

the

nearest

autho-

rized dealer.
Throughout

this

manual

various types of precautionary in-

formation is included:

Warning

A

WARNING

indicates

that

procedures

detailed
could cause personal injury or serious equipment
damage

if

suitable

precautions

are

not

taken.

Caution

A CAUTION indicates

that

minor

damage

may

re-

sult

if

suitable

precautions

or

normal

work practices

are

not

taken.

Note

A NOTE indicates steps to be

taken

to

make

the

particular

procedure

easier

to

carry

out.

1-1

()

C

C

0

CHAPTER

2

BLOCK

DIAGRAMS

C

0
0

Maintenance Manual

Block Diagrams

2.0

Hyperion

Block

Diagrams

Complete

System

(Fig. 2-1)

The

System

Block

Diagram

illustrates

the

relationship

between

the

System

Board

and

the

Keyboard, Disk Drives, Speaker,

Fan,

Display

and

I/0

Board, Display

Unit,

and

Modem Board.

System

Board

(Fig. 2-2)

The

System

Board

contains

the

DRAM,

System

Clock, CPU,

EPROM,

and

the

DMA

and

Floppy

Disk

Controller. The Boot

Strap

Program

and

Hyperion-On-Self-Test (HOST)

Programs

are

stored

on

the

system EPROM.

Display

and

1/0

Board

(Fig. 2-3)

The

Display

and

I/0

Board contains

the

Real Time Clock, out-

puts

and

inputs

to

the

CRT, Modem

and

Parallel/Serial

interface

..

The

CRT

enhancement

circuitry for alpha/graphics

plus

the

Video

Driver

are

located on

this

board.

The

optional

Modem

Board

plugs

into

the

Display

and

I/0

Board

in

piggy-

back

fashion.

Modem

Board

(Fig. 2-4)

The

Modem

Board

provides

the

auto-dial,

auto

answer, tele-

phone

line

interface

and

a 300

baud

Modem.

The

programmable

speaker

volume control is also located on

this

board.

2-1

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2-1-

Hyperion

Block

Diagram

Block Diagrams

2-3

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CONTROL

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TO MODEM

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SELECT

MODEM AND

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CONTROL

DISPLAY

AND

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BLOCK

DIAGRAM

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CPU

CONTROL,

CHANNEL

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ADDRESS

AND

TO

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BUS

CHANNEL 'B'

SERIAL PORT

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BAUD

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CONTROL

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OUTPUT

MODEM
PROTECT

ANALOG
INPUT

TRANSMIT

ACOUSTIC

INTERFACE

MODEM CARD BLOCK

DIAGRAM

TELEPHONE

LINE

INTERFACE

RING

DETECT

HOOK
SWITCH
STATUS

0

TELEPHONE LINE

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(MODULAR JACK)

No

2

STATUS

BIT

TO

510

STATUS BIT

TO

SID

EXTENSION PHONE

(MODULAR JACK)

No

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ACOUSTIC

CUPS

{MODULAR JACK)

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Chapter3

Fault

Analysis

Charts

C

0

3.0

Fault

Analysis

Charts

(FAC's)

FAC-0.0 How

To

Use

FAC-1.0

Start
FAC-2.0 Power Supply
FAC-3.0 CRT
FAC-4.0 Disk Test
FAC-5.0

DRAM
FAC-6.0

CRTRAM
FAC-7.0 Serial

1/0

FAC-8.0

Parallel

1/0

FAC-9.0 Speaker Test
FAC-10.0 Modem Test

3-1

0

(/

C)

c·

(

Maintenance

Manual

How

To

Use

This

Chapter

Fault

Analysis

Charts

FAC 0.0

1)

Always begin with

the

START F AC.

2)

The

ST ART F

AC

will refer you to one of

the

other F AC's

numbered

from 2 to 10.

3)

The

sub-assembly FAC will guide you

through

mechanic-

al, electrical

and

diagnostic

tests

which will help isolate

the

failed sub-assembly.

4)

The

removal/replacement section will guide you to

repair

completion.

3-3

C

(_ !

( '

0

(

Maintenance

Manual

Fault

Analysis

Charts

FAC.1.0

Start

This

is

the

entry

point

for

all

fault

isolation.

The

equipment

you

need

for

fault

analysis

is:

a)

Wrap

around

plug

kit

b)

Hyperion

Diagnostic

Diskette

c)

Standard

hand

tools

The

hand

tools should consist

of:

Diagional

cutters

Needle nose pliers

Phillips

screw

driver

Socket wrench

or

nut-driver

set

Right

angle

dental

pick

d)

Standard

spares

kit

1)

Before

applying

power,

check

the

AC

line

cord

and

keyboard

cable for

damage

2)

Connect

the

AC line cord to a known good AC

outlet

and

turn

the

system

ON.

3)

Under

normal

conditions

the

AMBER

ON

buttqn

will

light

when

power is applied.

Does

The

Power

Light

Come

On?

No -

Go

to Power F AC 2.

0.

If

the

power is good, replace

ON

switch

light

bulb.

Yes

-

Next

page.

3-5

Fault

Analysis

Charts

FAC 1.0

Maintenance Manual

3-6

Normal

Power-Up

When a properly

working

Hyperion

is

powered

ON

and

a Di-

agnostic

Diskette

is

inserted,

the

following responses

are

nor-

mal:

1)

10-15 second

warm-up

period

2)

Diagnostic

program

boot-up

3)

The

following will

appear

on

the

display:

Hyperion (TM) Dynalogic Info-Tech Corporation

Beta Test

09

Dec

82

MS-DOS version 1 .25
Copyright 1981,82 Microsoft, INC

Current date is Mon 4-04-83

A:

Note

The

information

displayed on

the

screen

may

not

be

identical

to above, depending on

the

version of di-

agnostic

diskette.

The

above is only a typical screen

format.
If

the

diskette

does

not

load properly,

try

to load from

the

other

Disk

Drive.

If

this

works

run

the

Disk

FAC

to confirm

Disk

Drive failure.

Does

The

Hyperion

Power-Up

Properly?

Yes

- Refer to

Running

Specific Diagnostic Section

in

this

chapter

to choose

the

diagnostic

program

to

run.

No

-

Next

page

Maintenance Manual

Fault

Analysis Charts

FAC 1.0

Hyperion-On-Self-Test (HOST)

When

a malfunctioning Hyperion is powered up,

the

system

may

fail

its

start-up

diagnostics. These diagnostics

test

only

some major sub-assemblies. The system will

not

boot

if

it

fails

these

diagnostics.

The

error

messages are:

Error

Message

Memory

Fault

Parity

Fault

Keyboard

Fault

Disk

Fault

Probable

Cause

CRT RAM, System

RAM

or EPROM The

area

at

fault is determine from

the

address reported.
The DRAM is located from 00000 to 3FFFF.
The

CRT RAM

is

located

from B0000 to
BFFFF. The EPROM is located from F8000 to
FFFFF.

System

RAM

Keyboard/System Board

Disk Drive/System Board

Q Keyboard

fault

codes are:

0
0

1)

"ABFF" indicates a problem

in

RAM or ROM.

2)

"ABXX" where "XX"

is

the

key

number

of

the

stuck

key.

3)

"FF"

indicates a keyboard is

not

connected.

Is

There

A HOST Error Message?

Yes

-

The

system

is

hung

in

this

state. You will have to

rely

on

DC

electrical

testing

and

sub-assembly

replacement

to isolate

the

fault.

If

you cannot isolate

the

problem-Seek

technical assistance.

No

- Connect

an

external

monitor to isolate a possible CRT

failure, refer to FAC 3.0.

If

the

CRT is GOOD

continue to

next

page. NOTE:

It

may

be necessary to

adjust

the

vertical

and

horizontal sync of

the

monitor

to

match

the

Hyperion.

3-7

Fault

Analysis

Charts

FAC 1.0

Maintenance

Manual

Non-Functioning

Computer

3-8

When a system

fails to boot-up,

the

following observations can

be made:

1)

Diskette

will

not

load.

2)

CRT will be blank.

3)

Continual

reset

has

no effect.

4)

AMBER ON

light

is illuminated.

Note

The

system is non-operational. Refer to Power FAC

2.0 for voltage checks;

if

the

voltages

are

good, pro-

ceed

with

sub-assembly

replacement

to determine

fault.

C

0

C

0

C

Maintenance

Manual

Running

Specific

Diagnostics

Fault

Analysis

Charts

FAC 1.0

Review

the

problem symptoms

and

conduct a physical examina-

tion

for obvious faults

that

would

relate

to

the

following sub-

assemblies:

1)

Power

Supply FAC-2.0

2)

CRT

and

its

controls FAC-3.0

3)

Disk Drives FAC-4.0

4)

System

Memory

FAC-5.0

5)

CRT Memory

FAC-6.0

6)

Serial

1/0 FAC-7.0

7)

Parallel

I/0

FAC-8.0

8)

Speaker

FAC-9.0

9)

Modem FAC-10.0

Does

the

Symptom

Relate

to

any

of

the

Above

Assemblies?
Yes -Use

the

appropriate F AC

and

diagnostic program to

confirm problem isolation

and

repair.

Carry

out

repairs

and

re-test.

No

-

Next

page.

3-9

C

CJ

0

0

C

Maintenance

Manual

Voltage

Check

Fault

Analysis

Charts

FAC 2.0

You

have

entered

this

F AC because you suspect a

fault

in

the

Power

Supply

or

the

power

distribution

system.

You

have

already

checked

the

AC

line

cord

and

are

certain

that

the

AC

wall

plug

is good.

The

Power

Supply

used

in

the

Hyperion is a switching

type

which

requires

a load on

the

output

to produce

the

correct

voltage.

The

DC voltage levels

must

be checked while

the

Power

Supply

is sufficiently loaded down.

The

following loads

are

required

on

the

output

voltage lines.

Voltage

Load

Pin

Numbers

Voltage

(OHMS)

Max Min

Common 1,11,12,13
Vl

1.1 10,9,8,

+5.25

+5.25

V2 25 2

+12.6

+11.4

V3 25 7,6,5,

+12.6

+11.4

V4 100 4

-12.6

-11.4

If

there

is a

short

on a board, a clicking noise can

be

heard

from

the

power supply.

Are

The

Right

Voltages

Measured?

No

-

If

all

of

the

voltages

are

missing, check

the

fuse

and

if

it

is GOOD, replace

the

Power Supply.

If

some of

the

voltages

are

missing

or

incorrect, replace

the

Power

Supply.

Yes

-

Next

page.

3-11

Fault

Analysis

Charts

FAC 2.0

Maintenance Manual

Power

Harness

Check

3-12

It

is

still

suspect

that

a power problem is possible. You

are

now

going to check

the

power harness.

1)

Tum

the

AC

power

off.

2)

Remove each connector from

the

sub-assemblies.

3)

Measure

the

resistance to check

the

continuity of

the

harness.

Do

The

Cables

Have

Continuity?

No

- Replace/repair

the

harness.

Yes

- You

have

now eliminated

the

Power Supply

and

harness

as

a possible fault.

Return

to ST ART F

AC

if

problem

still

persists.

(

0

0

(

(

Maintenance

Manual

/-

"'

M

..,

"

I

I

~

N

"

en

!!:.

u

8

0

8

a

u

u

~

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>

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>

~

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u + +

a

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I

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I

I I I I

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g

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c::

~

a a

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u,

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0

0

g

0

g

t-

...

.,

.,

Fault

Analysis

Charts

FAC 2.0

8

N

::E ::E

>

+ 8 8

~

/-

"'

M

..,

"'

I

I

I I

I

;;;

!!:.

8

::;

>

a

N

u

+

-

....

"-

I

I

I

t-

•

c::

u

!!:.

~

w

2:

U)

u,

ii:

c::

a

a

a a

c::

c::

"'

"

<

<

g

g

u,

!!l

0 a

a

a

a

g

t-

t-

t-

51

::

~

\'.?

'\.

I

Fig. 3-1 - Power

Harness

Voltages

3-13

C

0

0

Maintenance

Manual

Fault

Analysis

Charts

FAC 3.0

CRT

Diagnostics

You

have

entered

this

F AC

after

doing

the

Start F AC

and

are

now

trying

to

isolate

the

cause

of a malfunctioning

screen.

1)

When a Hyperion

boots

up

it

is

normal

to observe

the

standard

diagnostic

information

as

follows:

Hyperion

(TM)

Dynalogic

Info-Tech

Corporation

Beta test 09

Dec

82

MS-DOS

version 1.25

Copyright

1981,82

Microsoft,

INC

.

Current date

is

Mon.

4-04-83

A:

2)

If

there

is

an

obvious

distortion

or

error

in

the

screen

information,

connect

an

external

monitor

via

the

external

video

jack

and

compare

the

screen information.

3)

If

the

CRT

requires

adjustment

refer to

Chapter

8.

4)

There

are

two versions

of

CRT diagnostics for

the

Hyperion.

One

version will

work

on all boards

with

serial

numbers

up

to

2500.

The

other

version uses BASICA so

it

will only

work

on

those

Boards

with

serial

numbers

501

and

up.

Both

versions will

be

detailed,

the

one which does

not

require

BASICA will

be

first.

Does

The

Correct

Image

Appear

on

the

External

Monitor?
No

- Replace

the

Display

and

I/0

Board.

Yes

- Replace

the

CRT

assembly

and

re-run

the

diagnostics.

3-15

Fault

Analysis

Charts

FAC 3.0

Maintenance Manual

CRT

Tests

Which

Do

Not

Require

BASICA

Linearity

Test

3-16

This

diagnostic is

intended

to

test

the

focus, centering,

tilt

or

curvature

of

the

display.

Select diagnostic "LINEARITY",

the

following will appear on

the

screen.

rrrrrrrrrrrrrrrrrrrrrrrrrrrrrrrrrrrrrrrrrrrr
rrrrrrrrrrrrrrrrrrrrrrrrrrrrrrrrrrrrrrrrrrrr

RRRRRRRRRRRRRRRRRRRRRRRRRRRRRRRRRRRRRRRRRRRR
RRRRRRRRRRRRRRRRRRRRRRRRRRRRRRRRRRRRRRRRRRRR

aaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaa
aaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaa

AAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAA
AAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAA

rrrrrrrrrrrrrrrrrrrrrrrrrrrrrrrrrrrrrrrrrrrr

rrrrrrrrrrrrrrrrrrrrrrrrrrrrrrrrrrrrrrrrrrrr

RRRRRRRRRRRRRRRRRRRRRRRRRRRRRRRRRRRRRRRRRRRR

RRRRRRRRRRRRRRRRRRRRRRRRRRRRRRRRRRRRRRRRRRRR

aaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaa

aaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaa

AAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAA

AAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAA

Fig.

3-2 - CRT Display

Quality

Is

the

Display:

Dim? Too Wide? Too narrow?

Too

short?

Too

small? Wavey?

Not

centered?

Out

of focus?

Yes

- Adjust

the

CRT

and

re-run

the

diagnostics.

No

-

Next

page.

C

C

Maintenance

Manual

Fault

Analysis

Charts

FAC 3.0

Character

Generator

Test

This

diagnostic

test

is designed to

test

the

character

generator

located on

the

Display &

1/0

Board.
Select diagnostic "CHARSET".
The

program

sets

up

the

following display:

0 • • + + + • aoa O 9

1'

~

0 -

~

I

!!

'If ~ - l I I - -

~

- • •

t • # I 'I I I I • •

I I J I I I I I I

< . > t

11

11

D , D I I T U Y w • Y l \ I

/\

-

.......

I '

......

' I l J

......

,!l

; ; 4 \ E

<t

,4:

0

Ill

O

~

u y

OU

c

Cl

Pt!

.;

; o

...

'li

}

1.

1

i.

r

-,

... ...

i

<<

>>

..

a r •

i:

.,....

11

,,,..

o & n , - • e n

11

, ! ! r J + .. o • •

..,-n

t 1

Fig. 3-3 -

Character

Set

Diagnostics

Check

that

each

character

is complete

and

in

the

same

position

as

above.

Did

Character

Generator

Test

Pass?

Q

No

- Replace

the

Display

and

1/0

Board

and

re-run

diagnostics.

Yes

-

Next

page.

(

3-17

Fault

Analysis

Charts

Maintenance

Manual

FAC 3.0

(':

"'

I

..

•

r

•

J

I\

11

I

......

i

!

0:

=n

V

<

~

fF

l

-

...

--#-

/

<l

N

..

*

-l

(

1r

~

::,

b

~

I

"'

Ir

,.

0

l1

.

F

CE>

,.

•

)(

T

JJ

t;::

,

:,

0

3:

lf

d

(:>

ll

>

T

F

•

,o

·I·

:,

0

,~

--,

'

....

[1

'-

(0

~

"'

{

VI

'

~

11

..

"'

~

~

.J

l

+I

0

~

1r

""'

·W

II

Ill

< V

C

"',

V

JL

<{

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w

I~

'6,

~

E

"

"o

~I

8

m

"'

~

I.A

"'

i

0

...

::!J

C:

a

""

L

¢

J_

<

..

....

-

,0

•

"'

J1

<>

l--

01

•

..

+

""

::,.

..

~,

...

.

.,

I

~

~

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~

....

,c

~

I=

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'II:

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.

.,

L

•

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-j

.,,.

<

:,

(D)

a

<.>

J

!j

3-18

0

Maintenance

Manual

Display

Attributes

Fault

Analysis

Charts

FAC 3.0

This

diagnostic checks

the

display

attributes.

Select diagnostic "ATTRIBUTES" ,

and

check

that

the

display is

as

below.

TEST

"3

DYNALOGICS

ATTRIBUTES

THIS

LINE

IS

UNDERLINED

THIS

LINE

IS

BLINKING

THIS

LINE

CONTAINS

SUPERSCRIPTS

THIS

LINE

CONTAINS

SUBSCRIPTS

THIS

LINE

CONTAINS

BOTH

TltS UIE

IS INTEMSHD

THIS

LINE

IS

DOUBLE

WIDTH

Fig.

3-4 -

Attributes

Diagnostics

Did

The

Display

Attributes

Pass?

No

- Replace

the

Display & 1/0 Board.

Yes

-

Next

Page.

3-19

Fault

Analysis

Charts

FAC 3.0

Maintenance

Manual

Display

Graphics

3-20

This

diagnostic checks

the

Low Resolution graphics.

Select diagnostic "LOWRES".

Ii

r

I

I

I !

~

I i

/ I I

Fig. 3-5 - Low Resolution Diagnostics

Did

Low

Resolution

Graphics

Test

Pass?

No - Replace

the

Display &

I/0

Board.

Yes

-

Next

page.

11, I

I I I

I

I

I I

, I

I

I
I

I

1

11

0

0

Maintenance

Manual

Fault

Analysis

Charts

FAC 3.0

This

diagnostic

tests

the

High

Resolution Graphics.

Select diagnostic "HIGHRES".

I I

Fig. 3-6 -

High

Resolution Diagnostics

Did

High

Resolution

Graphics

Test

Pass?

No

- Replace

the

Display &

1/0

Board.

Yes

-

If

the

Hyperion

has

passed all

of

the

CRT diagnostics

and

there

is

still

a CRT problem, seek technical

assistance.

3-21

Fault

Analysis

Charts

FAC 3.0

Maintenance

Manual

CRT

Test

Which

Require

BASICA

3-22

This

is a group

of

tests

linked

together

which provide

patterns

for CRT

alignment

as

well

as

the

Character

Set,

Attributes,

Low

and

High

resolution

graphics.

The

test

is executed by:

1) Type: BASICA

and

Rtn.

The

screen will display

the

follow-

ing

:

Dynalogic Hyperion (TM)
BASICA version 1.008
(C) Copyright Microsoft 1982
59866 Bytes Free
OK

2)

Type: Run"CRTTST.

The

screen will display

the

following.

Hyperion CRT/Display Test (820035-000-02)
60Hz. CRT TEST PATTERN- CRT alignment

70Hz. CRT TEST PATTERN- CRT alignment
CHARACTER SET- Verify integrity of Character Generator (
ATTRIBUTES DISPLAY- Verify all Attribute functions

LOW RESOLUTION GRAPHICS- Verify the four levels
HIGH RESOLUTION GRAPHICS- Check the quality of the

display

To change the display use the following: To move to the next
display type, the 'CURSOR RIGHT' key
To move to the previous display, type the 'CURSOR LEFT'

key

To exit to DOS type the 'E' key

3)

The

60Hz

and

70Hz

test

patterns

are

used for

adjusting

the

CRT. Refer to

Chapter

8 for

the

procedure.

4)

The

other

four

tests

are

similar

to

those

previously

explained.

0

C

(_

Maintenance

Manual

Fault

Analysi's

Charts

FAC 3.0

Character

Generator

Test

This

diagnostic is

designed

to

test

the

character

generator

lo-

cated

on

the

Display & I/0

Board.

The

program

sets

up

the

following display:

!!

ff

\ • L

t

I"-•

VIP\/

r

.,

• ;

(<

»

, · • •

.,

• ,

,.

..

r

.J

• • o • • ,,..

.,

r

CJCJCJCJCJ

CJCJCJCJCJ

Fig. 3-7 -

Character

Set

Diagnostics REVOl

Check

that

each

character

is

complete

and

in

the

same

position

as

above.

Did

Character

Generator

Test

Pass?

No

- Replace

the

Display & I/0

Board

and

re-run

diagnostics.

Yes

-

Next

page.

3-23

Fault

Analysis

Charts

Maintenance

Manual

FAC 3.0

C:

t

(j)

0

I

I-

l

:,.

t

"

ci'.

:><t-

J

r

L

1

i

l

I

•

•

lr

•

rr

I

i

I

T

L

M

l

1:1

1

t

T

+

fl

:

I:

,:

....

:i:i

[

~

JJ

~

~

d

•

~

V

r

0

V

-·

I\

I~

1

V

,I

'")

r

JL

(,

1r

0

L

II

.,

~-

<

JL

A

•

IF

•

,,

•

11

C

l!:

•

""

-

::!.I

~

•

l

0

,.

...L

JL

3-24

C

0

(

Maintenance

Manual

Display

Attributes

Fault

Analysis

Charts

FAC 3.0

This

diagnostic checks

the

display

attributes.

THIS

LINE

IS

UNDERLINED

THIS

LINE

IS

Bl.INKING

THIS

LJNE

CONTAINS

SUPERSCRIPTS

THIS

LINE

CONTAINS

SUBSCRIPTS

THIS

LINE

CONTAINS

BOTH

TIIS

UM:

IS

INTEHSFED

Fig. 3-8 -

Attributes

Diagnostics REVOl

Did

Display

Attributes

Test

Pass?

No

- Replace

the

Display &

I/0

Board.

Yes

-

Next

page.

3-25

Fault

Analysis

Charts

FAC 3.0

Maintenance

Manual

Display

Graphics

3-26

This

diagnostic

checks

the

low resolution graphics.

Fig.

3-9 - Low Resolution Diagnostics REVOl

Did

Low

Resolution

Graphics

Test

Pass?

No

- Replace

the

Display &

I/0

Board.

Yes

-

Next

page.

0

0

Maintenance

Manual

Fault

Analysis

Charts

FAC 3.0

This

diagnostic

tests

the

high

resolution graphics.

Fig.

3-10 -

High

Resolution Diagnostics REVOl

Did

High

Resolution

Graphics

Test

Pass?

No

- Replace

the

Display & I/0

Board.

Yes

-

Next

page

.

3-27

Fault

Analysis

Charts

FAC 3.0

Maintenance

Manual

40

Character

Mode

3-28

This

diagnostic checks

the

display

attributes

in

40

character

mode.

This

diagnostic

test

is on Diagnostic

Diskette

REVOl

only.

THIS

LINE

IS

UNDERLINED

THIS

LINE

IS

REVERSE

VIDEO

THIS

LINE

IS

BLINKING

THIS

LINE

CONTAINS

SUPERSCRIPTS

THIS

LINE

CONTAINS

SUBSCRIPTS

THIS

LINE

CONTAINS

BOTH

TIIS UtE

IS

INTI:H:ifEI

Fig. 3-11 -

Attributes

Diagnostics 40

Character

Mode

REVOl

Did

40

Character

Mode

Pass?

No

- Replace

the

Display & 1/0 Board.

Yes

-

If

the

Hyperion

has

passed

all

of

the

CRT diagnostics

and

there

is

still

a CRT problem,

seek

technical

assistance.

C

0

0

(

0

Maintenance

Manual

Fault

Analysis

Charts

FAC 4.0

Disk

Test

You

have

entered

this

F AC because of a HOST

error

message, a

failure

to load, or suspected

random

read/write

errors.

Note

1)

Under

HOST

error

conditions you

cannot

even load

your

diagnostics.

2)

3)

4)

5)

If

there

is no HOST

error

continue to

next

page.

Ensure

the

diskette

is good.

Insert

diskette

into

other

drive

and

re-boot.

Inspect all

wiring

harnesses

and

power cables. Refer

to

Power

F AC

as

required.

Random

read/write

errors will occur on Drive "B"

if

the

fan is

not

operational.

The

Disk

Drive

head

cleaning

kit

should only be

used

when

errors

occur

running

Disk Test.

It

should not be

used

on a

regular

basis

as

rapid

head

wear

may

result.

Does

the

Error

Continue?

Yes

- Replace

the

System

Board or Disk Drive

that

was

faulty.

No

-

Next

page.

3-29

Fault

Analysis

Charts

FAC 4.0

Maintenance

Manual

Reliability

Test

3-30

The

reliability

test

is designed to isolate

read/write

errors.

The

types

of

errors

normally

associated

with

the

Drives are,

Hard,

Soft

and

Seek.

Soft

errors

are

usually

caused

by:

1)

Airborne

contaminants

that

pass

between

the

read/write

heads

and

the

disk. These

contaminants

are

usually

removed

by

the

cartridge

self-cleaning

wiper.

2)

Random

electrical noise which

usually

lasts

for a few

microseconds.

3)

Small

defects

in

the

written

data

and/or

track

not

detected

during

the

write

operation.

4)

Worn

or

defective media,

known

good

media

must

be

used

when

running

this

test.

Soft

errors

are

normally

recovered by

rewriting

or

rereading

the

diskette

on

the

next

revolution.

If

unsuccessful

after

10

tries

at

writing/reading

the

data,

the

error

is classified

as

Hard.

Seek

errors

result

when

the

stepping

rate

exceeds 5msec.

A

"small"

number

of soft

errors

are

acceptable since

they

are

automatically

recovered by

the

Floppy

Disk

Controller (FDC),

and

will

not

affect

normal

system

operation. A "large"

number

of

soft

errors

may

indicate

problems

in

the

hardware

which

may

worsen

with

time

and

are

not

acceptable.

Hard

errors

may

indicate

defective

diskette

media,

dirty

or worn read/write

heads,

or a fault

in

the

drive

or

FDC electronics.

C

0

(

0

(.

(

Maintenance

Manual

Fault

Analysis

Charts

FAC 4.0

When

using

Disk

Test,

error

information

is displayed on

the

screen

when

detected.

In

addition, a

summary

of

the

number

of

accumulated

errors

are

displayed

after

each

pass. Soft

error

reporting

indicates

the

type

of

error,

drive, cylinder,

head

and

sector

number.

Also,

the

number

of failed

retries

is displayed.

Errors

which

repeatedly

occur

at

the

same

place on

the

diskette

may

indicate

"bad

spots" on

the

diskette.

Select diagnostic "DISKTEST"
The

following will be displayed:

Welcome to Hyperion DISKTEST (820030-000-03)
Test Reliability, Interchangeability, Read Master Diskette, Write

Master Diskette or Exit, your choice? (R,l,M,W,E,)

"_",

Select option "R"

and

disktest

will prompt:

Insert scratch diskette

in

drives to

be

tested. Ready to proceed?

(Y/N)

"_"

Select option "Y" to

start

testing

or option "N" to

exit

back to

MS-DOS.

3-31

Fault

Analysis

Charts

FAC 4.0

Maintenance

Manual

Single

Drive

Hyperions

may

be

tested

by

entering

the

choice (P),

which

will allow

the

user

to

configure

Disktest

to

suit

the

Hype-

rion

under

test.

Select

option "P"

and

disktest

will prompt:

Choose one

of

the

following:

O =

Exit

program

1 =

Write

Master Diskette

2

= Read Master Diskette

3

=

Reliability

Test

4=

Interchange Test

Your

Choice

Select

option "3"

and

the

screen

will display:

How

many

Drives

in

system

Enter

"1"

Double

sided

Drives

(Y

or

N)

Enter

"Y"

Data

Word

(in

Hex)

Enter

"6DB6"

How

many

passes

(Decimal)

Enter "100"

How

many

random Read/Writes

(dee)

Enter

"100"

How

many

interdrive

transferes

Enter

"O"

Insert scratch diakette

in

Drive(s)

to

be

tested

Ready

to

proceed?

(YIN)

"_"

Does

The

Random

Error

Continue?

Yes

- Replace

the

appropriate

Drive or

System

Board

as

directed

by

the

error

message.

If

there

are a large

C

C

number

of

errors

on

both

drives,

the

problem

may

be (

with

the

System

Board.

No

-

Run

the

test

multiple

times

to confirm a good system.

If

the

system

does

not

fail

it

is

GOOD.

(

3-32

0

0

0

(

Maintenance

Manual

Interchangeability

Test

Fault

Analysis

Charts

FAC 4.0

This

test

is

run

if

there

is a suspected compatibility problem

between

the

Drives.

This

test

cannot

be

used

on single drive

Hyperions.
Select

Disktest,

then

the

option "I".

Disktest

will prompt:

Insert scratch diskettes

in

Drives A

B.

Ready to proceed? (YIN) "_".

By

selecting

option

"Y"

the

diskettes

will be formatted

and

written

with

data.

When

completed

the

program

will prompt:

Now interchange diskettes between A &

B.

Ready to proceed? (YIN)

"_"

.

By

selecting

option

"Y"

the

diskettes

will be verified . Following

verification you

have

the

option

of

continuing

or

terminating

testing.

Is

There

an

Error

Message?

Yes

- Replace

the

Drive

which

failed.

No

-

Next

Page.

3-33

Fault

Analysis

Charts

FAC 4.0

Maintenance

Manual

Read/Write

Master

3-34

If

there

is a suspected

compatibility

problem

between

Hyperions,

select

Disktest,

then

option "W". Disktest

will

prompt:

Drive#

(A

or

B)?

"_".

Insert diskette

in

drive

.

Ready

to

proceed? (Y/N)

"_"

,

By

answering

"Y"

the

diskette

will be

formatted,

filled

with

data

and

verified before

returning

to

the

initial

menu.

This

"master"

can

now be

read

on a

known

GOOD Hyperion by

loading

the

diagnostic

diskette,

selecting

Disktest,

then

option

"M" .

Disktest

will prompt:

Drive#

(A

or

B)?

"_".

How

many

passes? (decimal)"_".

Insert master diskette

in

drive

.

Ready

to

proceed? (YI

N}"_"

.

By

answering

"Y"

the

diskette

will be verified

until

the

selected

pass

count

is

reached.

The

program

will

then

return

to

the

initial

menu. This

master

should

be

read

from

both

drives. To

further

test

the

Hyperion, a

master

should

be

produced on a

known

GOOD

machine

and

read

on

the

Hyperion

which is

suspect.

Read/Write

Master

can

be

used

to

test a single

drive

Hyperion.

Is

There

an

Error

Message?

Yes

- Replace

the

Drive

which

failed.

No

-

Drives

pass

compatibility

test.

C

0

()

Maintenance

Manual

DRAM

Diagnostics

Fault

Analysis

Charts

FAC 5.0

This

FAC

has

been

entered

due to a HOST

error

message or

an

error

message

during

use. A

random

error

can occur periodically

and

is difficult to isolate.

The

best

means

of

checking

the

compu-

ter

reliability

is to

run

the

RAM

test

multiple

times.

When

RAMTEST is

running,

the

system

must

be powered down,

then

up, to re-boot

as

this

test

overwrites all MS-DOS com-

mands

stored

im

memory.

RAMTEST

uses

several

different

test

patterns

run

in sucession

to

test

the

256K

of

DRAM.

Each

pattern

is designed to detect a

particular

hardware

fault.

The

DRAM is divided into four seg-

ments

of

64K

each

and

is

tested

one segmerit

at

a time.

BYTE TWO PASS
This

does a

write

then a read

up

the

segment

under

test

with

the

following

patterns,

OOH,

FFH,

55H

and

AAH, checking for open

and

stuck

bits.

CHECKERBOARD
55H

and

AAH

are

written

in

alternate

bytes

then

verified. A

write

pass

and

verification

pass

with

the

complimentary check-

erboard

AAH/55H is

then

done.

WALKING ADDRESS
This

uses a pattern

derived from every

other

memory location.

The

eight

MSB of

the

address

of

the

location being

tested

are

written

into

that

location,

the

eight

LSB

are

written

into

the

following byte.

The

contents

are

then

verified. This

test

detects

row

and

column

address

shorts.

STAIRCASE
This

uses a pattern

derived from a counter initialized to

OH.

OH

is

written

into

the

first

location

and

the

counter incremented.

When

the

counter

reaches

FFH,

it

wraps back to

OH,

and

the

count

is

continued

until

the

write

pass is complete.

This

test

detects

shorts

between

rows.

RIPPLE
All locations

are

cleared, verified,

then

filled one

at a time

with

FFH

and

verified again. With

FFH

in

all addresses,

OH

is

written

one

at a time

and

verified. This

test

detects shorts

between

any

two bytes.

3-35

Fault

Analysis

Charts

FAC 5.0

Maintenance

Manual

SLOW TWO PASS
This

is a

repetition

of

the

BYTE TWO PASS

with

the

interval

between

writing

and

verification increased to 1 second to check

for slow

leakage

problems between

bit

cells.

ROTATING BYTE
A location is

written

with

OlH, verified,

the

value is shifted left

and

verified. This continues

until

the

value

is 08H. The

test

then

moves to

the

next

location. This

tests

for shorts between each bit

in

each

byte.

Error

Reporting

3-36

Error

messages consist of

the

name

of

the

test

that

detected the

error, address of

the

error,

data

that

was

read

and

the

data

that

should

have

been

read. Appended to

the

error

messsage is

the

Exclusive OR of

the

error.

An

example of

an

error

message is:

BYTE TWO PASS ERROR AT 1000:768F DATA
WAS 57 NOT 55

XOR=02

This

is

interpreted

as

an

error

at

location 768F

in

the

second (

bank.

Converting

02 hex to

binary

gives 00000010

meaning

that

data

bit

1 is

in

error.

Select diagnostic "RAMTEST" to

start

testing.

Are

There

Error

Messages?

Yes

- Replace

the

System Board.

No

-

Passing

this

test

confirms RAM reliability.

Maintenance

Manual

Fault

Analysis

Charts

FAC 6.0

C CRT

Ram

Diagnostics

0

0

0

0

CRTRAM

uses

the

same

test

patterns

as

RAMTEST to check

the

20K

of

Video

Ram

located on

the

Display &

I/0

Board.

Select diagnostic "CRTRAM" to

start

testing.

Are

There

Error

Messages?

Yes

- Replace

the

Display &

I/0

Board.

No

-

Passing

the

test

confirms CRTRAM reliability.

3-37

Fault

Analysis

Charts

FAC 7.0

Maintenance

Manual

Serial

Port

Test

3-38

The

Hyperion

diagnostic

program

for

the

Serial

I/0

Port

is used

in

conjunction

with

the

loop

back

plug

shown below.

Data

is

sent

out

the

serial

port

which is fed

back

in by

the

loop

back

plug.

The

data

fed

back

is compared

with

the

data

sent

out.

Also looped

back

are

Data

Terminal

Ready

with

Receiver

Ready,

and

Clear

to

Send

with

Request to Send.

Select

diagnostic "SERIAL"

to

start

testing. The

screen will

display:

Testing at 300 BAUD: (Hit 0,3,4, or

9)

0 will

exit

the

program

3 will

test

at

300 BAUD

4 will

test

at

4800 BAUD

9 will

tets

at

9600 BAUD

In

REVOl

serial

diagnostics

the

BAUD

rates

are

selected by:

E will

exit

the

program

1 will

test

at

19.

2K

BAUD

3 will

test

at

300 BAUD

4 will

test

at

4800 BAUD

9 will

test

at

9600 BAUD

Fig. 3-12

Serial

Loop

Back

Plug

Did

Serial

Diagnostics

Pass?

No

- Replace

the

Display & I/0

Board

and

re-run

diagnostics.

Yes

-

Ensure

that

the

printer

the

customer

is

using

is

GOOD .

If

the

printer

is GOOD, seek depot assistance.

l.

(

C

(

(

C

0

Maintenance

Manual

Parallel

Port

Test

Fault

Analysis

Charts

FAC 8.0

The

Hyperion

diagnostic

program

for

the

Parallel

1/0

Port

is

used

in

conjunction

with

the

loop

back

plug

shown below.
Select diagnostic "PARALLEL".
The

screen

will display:

TEST

DO-D7,

PRESS

G TO GO ON

Fig. 3-13 -

Parallel

Port

Loop

Back

Plug

An

oscilloscope

can

be

used

to

test

the

data

lines,

pins

2 to 9, on

the

parallel

port.

The

test

outputs

a 50% signal.

If

all

data

lines

pass,

the

loop

back

plug

can

be

installed

on

the

port.

By

pressing

"G"

the

status

lines

will be checked.

Did

Parallel

Diagnostics

Pass?

No

- Replace

the

Display &

1/0

Board

and

re-run

Q diagnostics.

(

Yes

-

Ensure

that

the

printer

the

customer

is

using

is

GOOD.

If

the

printer

is GOOD, seek depot assistance.

3-39

Fault

Analysis

Charts

FAC 9.0

Maintenance Manual

Speaker

Test

3-40

You

have

entered

this

F AC because

of

sound problems. Select

diagnostic "SPEAKER".

The

screen will display:

Hyperion System Card Timer Channel Speaker Test

(820033-000-01 )

Press

"N"

= On,

"F"

= Off,

"U"

= Higher frequency

"D"

= Lower

frequency,

"E"

= Exit.

On

the

Diagnostic

Diskette

REVOl,

the 3 Speaker

tests

are

combined,

when

the

diagnostic is loaded

the

screen will display:

Please select one of the following tests
(1) SPKR - System Card timer test

(2) MDMCHK - Modem chip speaker test
(3) DTMFCHK - DTMF generator chip speaker test

Your choice

Choose

the

number

of

the

test

to be

run.

Caution

DO

NOT

connect a

signal

generator

to

the

Speaker

wires

to

check

the

speaker

function.

Does

The

Speaker

Sound?

No

-

Check

that

the

speaker

wires

are

connected

and

that

there

are

no

shorts in

the

cable. Replace

the

Speaker

and

re-run

diagnostics.

If

the

test

fails

again

replace

the

System

Board

.

Yes

-

There

is no problem

with

the

Speaker

0

0

Maintenance

Manual

Fault

Analysis

Charts

FAC 10.0

Modem

Test

This F

AC

is

entered

as

part

of a preventative maintenance

procedure or because of problems using

the

Modem or Auto

Dial/Answer

feature.

The

Modem

can

be

tested

using

the

In:Touch

program

on

the

MS-DOS diskette.

Dialer

Test

l)

Connect

the

Hyperion as shown below.

If

possible connect

a known GOOD Hyperion to

another

extension.

2)

Insert

the

MS-DOS diskette

and

boot

the

system. When

DOS

has

loaded, press soft key F6 (PHONE). Refer to

the

Hyperion

User

Guide to configure

the

Hyperion to

match

your telephone system.

The

cursor will be to

the

right

of

Fig. 3-14 - Modem Diagnostics

the

Current#,

you can

enter

a 7 digit local

number

or

the

number

of

the

extension where

the

other Hyperion is

connected.

Press

F5 (SPKR) soft key

and

the

system will

dial

the

number.

Does

The

Dialer

Work?

No

-

1)

Check

Speaker

for correct operation.

2)

Replace

the

Modem Board.

3) Replace

the

Display &

I/0

Board.

Yes

- Continue to

next

page.

3-41

Fault

Analysis

Charts

FAC 10.0

Maintenance

Manual

3-42

Dial

the

extension

number

the

Hyperion

under

test

is connected

to

using a known

GOOD Hyperion

or

another

phone.

The

speaker

can

be

checked for correct operation by

running

the

test

"MODEM".

The

Tone

Generator

can

be checked for correct operation by

running

the

test

"DTMF".

Did

The

Speaker

Sound?

No

-

1)

Check

Speaker

for correct operation.

2)

Replace

the

Modem Board.

Yes

-

Passing

all

tests

in

this

section confirms correct

Modem operation.

C

C

C

Chapter4

Removal

and

Replacement

Procedures

C 4.0 Removal/Replacement

4.1

General

4.2

Keyboard

4.3

Keyboard

Cable

or

PCB

4.4

Housing

4.5

Front

Bezel

4.6

Modem

Board

4.7

System

& Display

and

I/0 Boards

4.8

Disk

Drive

4.9

Power

Supply

4.10 CRT Assembly

4.11

Speaker

4.12

Fan

0

4-1

G

C

CJ

C

(,

0

C

0

C

Maintenance

Manual

Removal

and

Replacement

Procedures

4.1

General

This

section

details

the

removal

and

replacement

of

the

major

components

of

the

Hyperion

system. Before

undertaking

any

removal

or

replacement

procedures

always

ensure

that

you

are

aware

of

the

safety

precautions.

Note
Always

1)

Disconnect

all

power

sources

and

peripherals

from

the

system

before

undertaking

any

removal

or

replacement

procedures.

2)

Work

in

a well

lit

area.

3)

Use

an

anti-static

work

station.

4)

Protect

the

system,

especially

the

CRT face.

5)

Use

the

proper

tools.

6)

Follow

all

safety

instructions

and

hazard

warn-

ings found

in

this

text

or

in

the

machine.

7)

Remove

all

cables by

the

connectors,

not

by pull-

ing

on

the

cable itself.

4-3

Removal

and

Replacement Procedures

Maintenance

Manual

Multilayer

Boards

4-4

A

multilayered

printed

circuit

board is a series of

individual

circuit

layers

bonded

to

produce a

thin

monolithic

assembly

with

external

and

internal

connections to

each

level of

circuitry

determined

by

the

system

wiring

diagram.

At

the

point

of proposed interconnections, holes

are

drilled

which

pass

through

pads

on

the

conductors of

the

inner

layers

which

are

larger

than

the

drilled

holes.

The

drilling

exposes a

rim

of copper

around

the

entire

circumference of

the

hole.

Inter-

connection

between

the

different

layers

is accomplished by

plat-

ing

through

the

holes, connecting

circuitry

on

the

individual

layers

with

each

other

and

to

the

surface

of

the

boards.

Cracking

of

the

plating

in

the

hole

can

occur

during

soldering

because

the

thermal

expansion

of

the

insulating

boards is con-

siderably

greater

than

that

of

the

metal.

The

cracking

occurs

because

the

board

and

the

eyelet

expand

due to

the

heat

of

soldering,

and

as

the

solder cools,

the

contraction of

the

board

exceeds

that

of

the

eyelet

which sets up

stress

sufficient

in

some

cases to

fracture

the

solder

joints

.

C

0

Maintenance

Manual

Removal

and

Replacement Procedures

4.2

Keyboard

Removal

and

Replacement

1)

Invert

the

Hyperion on a proteced work surface. Discon-

nect

(or connect)

the

modular

connector

at

the

rear

of

the

Keyboard storage

area

.

Caution

Do

not

pull or

twist

the

retractable

cable.

I I

11

,,

j/

I I

==========~~===E

I I

I

I\

Fig. 4-1 - Keyboard Removal

4-5

Removal

and

Replacement Procedures

4.3

Keyboard

Cable

or

PCB

Removal

1)

Disconnect

the

Keyboard.

Maintenance

Manual

2)

Using a dental

pick, remove

the 6 spring

clips

securing

the

Keyboard

top

and

bottom

covers.

3)

Seperate

the

covers

and

disconnect

the

cable from

the

Keyboard

PCB.

4) Lift

out

the

PCB

if

it

is to be replaced.

Replacement

1)

Connect

the

cable to

the

Keyboard

PCB

and

assemble

the

top

cover,

Keyboard

PCB

and

bottom

cover.

2)

Replace

the 6 spring

clips

and

secure

them

.

C

3)

Reconnect

the

Keyboard

to

the

system

and

check

the

(

operation.

Fig.

4-2 -

Keyboard

PCB

Removal

4-6

0

Maintenance

Manual

Removal

and

Replacement Procedures

4.4

Housing

Removal

\

1)

With

the

AC power,

Peripherals

and

Keyboard discon-

nected, loosen/remove

the

two screws from

the

handle. On

earlier

housings

the

screws were

not

captive.

2)

Remove

the

four screws from

the

base.

3)

Lay

the

computer

face down on a protected surface

and

slide

the

housing

off

the

computer.

\

~

'

~

'

~~

~

\~,

~

1111111111111111111

,,,,,,,,,,,,,,,,,, l

Fig. 4-3 -

Housing

Removal

4-7

Removal

and

Replacement Procedures

Maintenance

Manual

Replacement

4-8

1)

Lay

the

computer face down on a protected work surface.

Carefully slide

the

Housing onto

the

chassis.

2)

Replace

the

four screws

in

the

base

and

tighten

the

two

in

the

handle.

3) Reconnect

the

AC power,

Peripherals

and

the

Keyboard.

Note

Following replacement of

the

Housing,

the

system

should be

tested

for normal operation. Specific di-

agnostics

may

be prescribed

in

the

following sections.

C

C

0

0

Maintenance

Manual

4.5

Front

Bezel

Removal

Removal and Replacement Procedures

1)

With

the

main

Housing

removed, remove

the

Power

Supply.

2)

Remove

the

6 screws

that

hold

the

bezel to

the

front of

the

chassis.

The

screws

are

located one

at

each corner

and

one

in

the

center

top

and

middle. On older machines

the

center

screws

are

located top

and

bottom . Access to

the

screws is

gained from

the

back of

the

bezel.

Replacement

1)

Position

the

bezel

and

replace

the

6 screws securing

it

to

the

front of

the

chassis,

but

do

not

tighten

them

.

2)

Make

sure

that

the

Disk Drive doors open

and

close with-

out

binding. Adjust

the

Bezel

as

necessary

and

tighten

the

screws.

3)

Replace

the

Power

Supply,

Housing,

Keyboard

and

Peripherals.

4.

9

Removal

and

Replacement

Procedures

4.6

Modem

Board

Removal

Maintenance

Manual

1)

With

the

Housing

removed, remove

the

screws

securing

I

the

Modem

Board

to

the

Display &

l/0

Board.

2)

Carefully

seperate

the

Modem Board from

the

Display

and

l/0

Board

connectors (top

and

bottom).

Replacement

4-10

1)

Carefully

align

the

plugs

and

sockets

and

mount

the

Mod-

em

Board

on

the

Display & l/0

Board.

2)

Replace

the

screws

securing

the

Modem Board to

the

Dis-

play & I/0

Board.

3) Reconnect

the

Keyboard,

Peripherals,

and

AC

power.

4)

Run

the

Modem diagnostics.

5)

lf

sucessful, remove AC power,

Peripherals

and

Keyboard.

6)

Replace

the

Housing.

7)

Replace

the

Keyboard,

Peripherals

and

AC power.

8)

Re-run

the

Modem diagnostics.

Warning

The

Modern is

static

sensitive

and

the

board

should

not

be removed

and

reinserted

often.

0

0

Fig. 4-4 - Modem Board Removal

(

Maintenance

Manual

Removal

and

Replacement Procedures

C 4. 7

System

and

Display

&

1/0

Boards

Removal

0

0

C

Caution

When

the

System

and

Display & 1/0

Boards

are

re-

moved from

the

chassis,

the

chassis

becomes "front

heavy".

The

chassis

must

be

supported

at

all

times

to

prevent

its

tipping

forward

when

the

boards

are

removed.

1)

With

the

Housing

removed, disconnect

the

DC power cable

and

disk

drive

interface.

2)

Remove

the 3 Phillips

head

screws along

the

top

and

the

2

screws

at

the

bottom.

3)

Remove

the 6 hexagon

head

nuts

from

the

I/0

connectors

along

the

bottom

edge of

the

Display &

1/0

Board. On

the

newer

chassis

these 6 nuts

are

part

of

the

board

assembly

and

do

not

have

to be disconnected to remove

the

board

assembly.

4)

Lift

out

the

board

assembly

and

disconnect

the

video, fan

and

speaker

cables.

5)

Remove

the

two

hexagon

head

nuts

from

the

bottom cor-

ners

of

the

Display

& 1/0 Board.

6)

Carefully

seperate

the

boards

at

the

connectors.

@

Fig.

4-5 -

Board

Assembly Removal

4-11

Removal

and

Replacement Procedures

Maintenance

Manual

Replacement

4-12

Note

If

the

System

Board is to be changed,

and

the

unit

is

configured

as

a single drive Hyperion, a

jumper

at

position E3-1&2

must

be installed,

this

jumper

must

be removed for a two drive Hyperion.

If

the

Display &

1/0

Board is to be replaced, remove

the

1/0

connector chassis frame from

the

defective

board

and

install

on

the

replacement

board.

1)

Carefully

align

and

seat

the

connectors of

the

Display &

1/0

and

the

System

Boards.

2)

Replace

the

two hexagon

head

nuts

and

spacers

in

the

bottom

of

the

Board assembly.

3)

Position

the

boards

in

the

computer

and

connect

the

speak-

er, video

and

fan cables. Route

the

video cable

under

the

board

assembly

in

the

cut-out provided.

4)

Replace

the

6 hexagon

head

nuts

beside

the

1/0 connectors

at

the

bottom

of

the

boards

if

the

chassis is

the

older

version.

5)

Replace

the

remaining

spacers

and

screws securing

the

Boards.

6)

Replace

the

DC power cable

and

disk drive interface.

7)

Reconnect

the

Keyboard,

Peripherals

and

AC power.

8)

Run

applicable diagnostics.

9)

If

sucessful, remove AC power,

Peripherals

and

Keyboard.

10) Replace

the

Housing.

11) Replace

the

Keyboard,

Peripherals,

and

AC power.

12)

Re-run

the

diagnostics.

0

Maintenance

Manual

Removal

and

Replacement

Procedures

4.8

Disk

Drive

Removal

Note

To remove Drive "B", first remove Drive"A"

1)

With

the

Housing

removed, remove

the

Power Supply.

2)

Remove

the

Front

Bezel.

3) Remove

the

screen from

the

top

of

the

Disk Drives.

On

newer

chassis

this

screen

cannot

be removed.

4)

If

the

screen

cannot

be removed,

the

Board assembly will

have

to be removed to

gain

access to

the

back

of

the

drives

permitting

easy

removal of

the

cables. DO NOT remove

the

cables by

pulling

on

the

wires.

5)

Remove

the

screws from

the

left

hand

side

of

Drive "A".

Fig. 4-6 - Disk Drive Removal

6) Remove

the

screws on

the

right

hand

side of Drive "A"

and

slide

it

partially

out

of

the

chassis.

7)

Disconnect

the

ribbon cable

and

power

harness

when ac-

cessible

and

slide

the

Drive

out

of

the

chassis.

8) To remove Drive "B",

repeat

steps 5,6,

and

7 for Drive "B".

4-13

Removal

and

Replacement Procedures

Maintenance

Manual

Replacement

4-14

Note

Drive

"B"

must

be replaced before Drive "A". Drive

select

jumpers

must

be correctly positioned before

drive

replacement

as

follows.

Drive

"A" =DSO

Drive

"B"

=DS1

The

Drives

are

shipped

with

a cardboard

diskette

inserted.

This

should only be removed

after

the

Drive

is

installed

in

the

system

but

before

turning

on

the

computer.

If

the

Hyperion

is

configured

as

a single

drive

system,

a

jumper

will

have

to

be

installed

on

the

System

Board

at

location E3-1&2.

For

a two drive

system

this

jumper

must

be removed.

1)

Slide

the

Drives

partially

into

the

chassis

and

connect

the

power

harness

and

ribbon cables

and

slide fully home.

2)

Replace

the

screws

in

the

side

of

the

Drives

but

do

not

tighten

them.

3) Replace

the

Front

Bezel

and

align

the

Drives to

the

slots in

the

bezel.

Ensure

that

the

Drive doors open

easily

and

a

diskette

can

be

inserted

and

removed smoothly,

then

tight-

en

the

screws.

4) Replace

the

Power

Supply

and

Board

assembly.

5)

Reconnect

the

Keyboard,

Peripherals

and

restore

the

AC

power.

6)

Run

Disk

Diagnostic.

7)

If

sucessful, remove AC power ,

Peripherals

and

Keyboard.

8)

Replace

the

screen

on

top of

the

Disk Drives,

then

the

Housing.

9) Reconnect

the

Keyboard,

Peripherals

and

AC power. (

10)

Re-run

the

diagnostics.

0

C

Maintenance

Manual

Removal

and

Replacement Procedures

4.9

Power

Supply

Removal

1)

With

the

Housing removed, carefully

pry

the

DC

wire

harness

from

the

plug

(J2).

2)

Remove

the

two

nuts

at

the

base of

the

Power Supply

frame.

3)

Carefully lift

the

Power Supply

out

of

the

chassis

and

disconnect

the

AC

input

plug

(Jl)

when

it

becomes

accessible.

o

11111111~1~11~n1~~

00

~

00

Fig

4-7 - Power Supply Removal

4-15

Removal

and

Replacement Procedures

Maintenance

Manual

Replacement

4-16

1)

Ensure

that

the

jumper

on

J3

is

set

properly for

the

AC

power

in

use.

2)

Connect

the

AC

power

harness

(Jl)

and

position

the

Power

Supply

in

the

chassis.

3) Replace

the

two

nuts

at

the

base of

the

Power Supply.

4) Replace

the

DC

power

harness

plug

(J2).

5)

Reconnect

the

Keyboard,

Peripherals

and

restore

AC

power.

6)

Test

the

system.

7)

Remove

the

AC

power,

Peripherals

and

Keyboard.

8)

Replace

the

Housing.

9)

Reconnect

the

Keyboard,

Peripherals

and

AC

power

and

test

the

system.

C

l

0

Maintenance

Manual

Removal

and

Replacement Procedures

4.10 CRT

Assembly

Warning Before

attempting

any

work

on

the

CRT

assembly,

short

the

anode

to

the

chassis

as

shown.

Fig. 4-8 -

Discharging

CRT Anode

Warning

The

CRT is very fragile, especially

at

the

neck,

and

requires

careful

handling

to

prevent

breakage.

The

implosion

resulting

from careless

handling

can cause

serious injury. Always place a soft cloth on

the

work

surface

to

prevent

scratching

of

the

tube

face.

4-17

Removal

and

Replacement Procedures

Maintenance

Manual

Removal

1)

With

the

Housing removed, remove

the

System

and

Dis-

play & 1/0

Boards

and

the

Power Supply.

2)

Observing

the

saftey precautions, disconnect

the

CRT

Board

interface.

3) Remove

the

four screws from

the

CRT Board.

4)

Remove

the

four

nuts

securing

the

CRT to

the

chassis

and

carefully lift

out

the

tube

and

board assembly.

Replacement

4-18

1)

Carefully replace

the

CRT assembly

in

the

chassis.

Ensure

that

the

springs

are

between

the

CRT flange

and

the

chassis. Also

make

sure

that

the

long

spring

is positioned

under

the

tube

and

connects over

the

top of

the

bottom

flanges.

2)

Replace

and

tighten

the

nuts

around

the

flange.

3) Connect

the

CRT Board interface.

4)

Replace

the

screws

in

the

CRT Board.

5) Replace

the

Power Supply, System

and

Display &

I/0

Boards.

6)

Reconnect

the

Keyboard,

Peripherals

and

AC

power.

7)

Run

diagnostics

and

adjust

the

CRT

as

required, (refer to

Chapter

8 for

alignment

procedures).

8)

Replace

the

Housing.

9)

Reconnect

the

Keyboard,

Peripherals,

and

restore

AC

power.

10) Re-run

the

diagnostics.

0

0

(

Maintenance

Manual

4.11

Speaker

Removal

Removal

and

Replacement Procedures

1)

With

the

Housing

removed, unsolder

the

Speaker

leads

at

the

speaker.

2) Remove

the

screws/nut

securing

the

Speaker

to

the

chassis

and

remove

the

Speaker.

Fig. 4-9 -

Speaker

Removal

4-19

Removal

and

Replacement Procedures

Maintenance Manual

Replacement

4-20

1)

Position

and

secure

the

speaker

to

the

chassis.

2) Resolder

the

Speaker

leads.

3) Reconnect

the

Keyboard,

Peripherals,

and

restore

AC

power.

4)

Run

the

Speaker

diagnostics.

5)

If

sucessful,

remove

AC

power,

Keyboard,

and

Peripherals.

6)

Replace

the

Housing.

7)

Reconnect

the

Keyboard,

Peripherals

and

restore

AC

power.

8)

Re-run

the

diagnostics.

C

(

(

C

Maintenance

Manual

Removal

and

Replacement Procedures

4.12

Fan

Removal

Q

1)

With

the

Housing removed, remove

the

Power Supply.

0

(

0

2)

Disconnect

the

Fan

power plug.

3)

Remove

the

nuts

securing

the

Fan

to

the

chassis

and

lift

out

the

Fan.

Replacement

1)

Position

the

Fan

in

the

chassis.

2)

Replace

the

nuts

securing

the

Fan

to

the

chassis.

3) Reconnect

the

Fan

power plug.

4)

Replace

the

Power Supply.

5)

Restore AC power

and

ensure

that

the

Fan

runs

.

6)

Remove AC power.

7)

Replace

the

Housing.

©

©

Fig. 4-10 -

Fan

Removal

4-21

C

C

( ;

(

C

Chapter5

Parts

List

C

()

5.0 Parts List

5.1

5.2

5.3

5.4

How To

Use

Hyperion

Assembly

(External)

Hyperion

Assembly

(Internal)

Keyboard

Assembly

5-1

C

(_

(

0

0

Maintenance

Manual

Parts

List

5.1

How

to

Use

This

Parts

List

1)

Locate

the

assembly

containing

the

part.

2)

Turn

to

the

section for

that

assembly

and

visually

identify

the

part.

3) Refer to

the

accompanying

list

to find

the

description,

quantity

and

Hyperion

part

number.

5-3

Parts

List

Maintenance

Manual

5.2

Hyperion

Assembly

(External)

5-4

Fig. 5-1 -

Hyperion

Assembly

External

Figure

Index

Part

Number

Number

1 200000-000

2 200006-000
3 200008-000
4 200007 -000
5 900846-000
6 900849-000

Description

HOUSING, MAIN
BEZEL, FRONT

KNOB, BRIGHTNESS
KNOB, CONTRAST
SWITCH PB LIGHTED
LAMP BI-PIN

Tl

(

0

Maintenance

Manual

Parts

List

5.3

Hyperion

Assembly

(Internal)

Fig.

5-2 -

Hyperion

Assembly

Internal

Figure

Index

Part

Number

Number

1 100012-000

2 100005-000
3 100004-000
4 520003-001
5 520007 -000
6 520008-000

7 520000-001
8 900789-000

9 520002-001

10 900809-000

Description

PCB, MODEM BOARD

A8

PCB, DISPLAY AND

I/0

BOARD A 7

PCB, SYSTEM BOARD

A6
DISK DRIVE, FLOPPY, QTY 2
POT SINGLE TURN, LOGARITHMIC
POT SINGLE TURN LINEAR
CRT ASSY, COMPLETE
SPEAKER, MINI, 480-5000HZ 0.3W
POWER SUPPLY
FAN 12V 200mA 2.4W

5-5

Parts

List

Maintenance

Manual

5.4

Keyboard

Assembly

5-6

Fig

5-3 - Keyboard Assembly

Figure
Index

Part

Number Number

1 100003-000

2 200009-000
3 520001-001

4 200010-000

5 200011-000

200011-001

6 200012-000

200012-001

7 520009-000

Description

KEYBOARD ASSEMBLY
ENCLOSURE.KEYBOARD
KEYBOARD
BASE,KEYBOARD
FOOT, KEYBOARD L.H.S.
FOOT, KEYBOARD R.H.S.
SPRING, FOOT L.H.S.
SPRING, FOOT R.H.S.
CABLEASSEMBLY, KEYBOARD

CHAPTER

6

PREVENTATIVE

MAINTENANCE

0

0

Maintenance

Manual

Preventative Maintenance

6.0

Preventative

Maintenance

The

purpose

of

preventative

maintenance

is to locate

and

cor-

rect

potential

problems before

they

occur

and

to

ensure

reliable

system

operation.

Preventative

maintenance

should be performed on a

regular

basis

and, depending on use, should be

at 6 month

to 1

year

intervals.

1)

Check for visible damage.

Pay

particular

attention

to

the

Keyboard for

damaged

keys.

2)

Clean

inside

the

Keyboard.

3)

Remove

the

Housing

of

the

computer

and

check

that

the

board

and

cable connections

are

secure. Check

that

sock-

eted

components

are

properly seated.

4)

Check voltage levels

at

the

Boards, Drives

and

CRT

and

that

the

Fan

is operational.

5)

Load

and

run

all

diagnostics. Replace

or

repair

compo-

nents

as

required.

6)

Re-assemble

the

machine, clean

the

Housing

and

CRT

face.

7)

Re-test

the

system.

6-1

c.

()

l '

( '

CHAPTER

7

PACKING

AND

SHIPPING

0

0

Maintenance

Manual

Packing and Shipping

7 .0

Packing

and

Shipping

General

Packaging

for

shipping

should

confirm

as

nearly

as

possible to

the

origional

packaging

when

items

are

received from

the

depot

or

factory. Devices which

are

static

sensitive

must

be

wrapped

directly

in

conductive

wrapping

before

being

placed in

shipping

cartons.
Printed

circuit

boards

should

be

protected

against

component

and

pin

connector

damage

before

being

placed

in

the

conductive

wrapping.
Large

and

fragile

parts

require

special

care

in packaging. Add

support

and

extra

packing

material

to

prevent

crushing

or

shift-

ing

in

transit.

Boxes

and

cartons

must

be labeled to indicate

the

fragility of

their

contents.

CRT

Note

Observe

safety

precautions

1)

The

CRTs

are

shipped

in

their

own box

and

are

securely

fastened

to a cardboard

tray.

CRTs

must

always be stored

and

shipped

securly

fastened

to

these

trays

to

prevent

damage.

2)

Before closing

the

cover of

the

box

make

sure

that

the

box

is full of

packing

to

prevent

the

CRT from moving.

Drives

1)

Drives

are

shipped

in

special foam boxes

and

are

also

shipped

with a cardboard

diskette

inserted

to

prevent

the

heads

from

touching

or

banging

during

shipping. Always

ship

Drives

in

the

foam boxes

and

with

the

cardboard

diskette

inserted.

7-1

C.

(

,~

C