AT&T PC 6300 - General; Troubleshooting; Replacing Faulty Modules

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MAINTENANCE

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GENERAL

This

chapter

contains

procedures

to

be

used

in

isolating

system

troubles.

Once

the

faulty

module

has

been

determined,

procedures

are

provided

for

replacing

the

faulty

modules.

Procedures

are

also

provided

for

adjusting

power

supply

output

voltage.

This

is

the

only

module

of

the

AT&T

Personal

Computer

6300

that

may

require

periodic

adjustment.

]

I

Troubleshooting

The

method

used

in

troubleshooting

the

PC

6300

depends

on

the

condition

of

the

system

when

the

power

switch

is

turned

ON.

If

the

system

is

not

capable

of

performing

the

System

Test

Diagnostics,

the

section

entitled

"Troubleshooting

Without

System

Test"

should

be

used.

If

the

system

is

capable

of

performing

the

System

Test

Diagnostics,

the

section

entitled

"Troubleshooting

With

System

Test"

should

be

used.

These

procedures

consist

of

performing

specific

portions

of

the

System

Test

Diagnostics,

depending

on

the

nature

of

the

trouble.

It

is

assumed

that

error

messages

are

generated

when

these

tests

are

performed.

Replacing

Faulty

Modules

After

the

source

of

trouble

has

been

isolated

to

a

specific

module,

procedures

are

provided

for

the

replacement

of

the

faulty

module.

Appendix

B

contains

a

list

of

the

replaceable

modules

along

with

ordering

information.

5-5

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Table of Contents

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