IBM
Office

Model # PC-AT Official IBM personal computer at

Here are the diagrams and repair parts for Official IBM PC-AT personal computer at, as well as links to manuals and error code tables, if available.

There are a couple of ways to find the part or diagram you need:

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  • In the search box below, enter all or part of the part number or the part’s name.

Not all parts are shown on the diagrams—those parts are labeled NI, for “not illustrated”.

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For DIY troubleshooting advice and repair guides, visit our repair help section.

Model diagram and schematic

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Showing 10 of 265 parts  |

Fixed Disk Drive 30mb 8286216
#1A

Fixed disk drive diagram

Fixed disk drive 30mb

Part #8286216

The manufacturer no longer makes this part, and there's no substitute part

Fixed Disk Drive 20mb 8286128
#1

Fixed disk drive diagram

Fixed disk drive 20mb

Part #8286128

The manufacturer no longer makes this part, and there's no substitute part

Indicator, Power-on 6321057
Indicator, power-on

Part #6321057

The manufacturer no longer makes this part, and there's no substitute part

J 2658852

#NI

All parts diagram

J

Part #2658852

The manufacturer no longer makes this part, and there's no substitute part

Vertical Hold Pot Shaft Extension 8529337
#6Q

Color display (5153) diagram

Vertical hold pot shaft extension

Part #8529337

The manufacturer no longer makes this part, and there's no substitute part

Key 5997176

#NI

All parts diagram

Key

Part #5997176

The manufacturer no longer makes this part, and there's no substitute part

Display Assembly Model 003 6321036

#NI

All parts diagram

Display assembly model 003

Part #6321036

The manufacturer no longer makes this part, and there's no substitute part

Display Assembly Model 002 6321049

#NI

All parts diagram

Display assembly model 002

Part #6321049

The manufacturer no longer makes this part, and there's no substitute part

Key 4585286

#NI

All parts diagram

Key

Part #4585286

The manufacturer no longer makes this part, and there's no substitute part

$/4 1642342

#NI

All parts diagram

$/4

Part #1642342

The manufacturer no longer makes this part, and there's no substitute part

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How to replace a water heater temperature and pressure (T&P) relief valve

How to replace a water heater temperature and pressure (T&P) relief valve

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Repair difficulty
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