IBM 5150 Hardware Maintenance Manual

Control Panel Replacement 3-54
Forms Feed Knob Removal 3-55
Forms Rack Removal 3-56
Forms Tractor Removal 3-57
Forms Tractor Replacement 3-58
Fuse Removal 3-59
Fuse-Filter Card/Power Cord Removal 3-60
Fuse-Filter Card/Power Cord Replacement
3-61
Heat Sink/Power Transistor Assembly Removal 3-62
Heat Sink/Power Transistor Assembly Replacement 3-63
Intermediate Gear Removal 3-64
Intermediate Gear Replacement 3-65
Left Margin Sensor Adjustment 3-66
Left Margin Sensor Removal 3-72
Left Margin Sensor Replacement 3-73
Power Transformer Removal 3-74
Power Transformer Replacement 3-75
Print Head Gap Adjustment 3-76
Print Head Removal 3-77
Print Head Replacement 3-79
Print Mechanism Assembly Removal 3-80
Print Mechanism Assembly Replacement
3-81
Ribbon Shield Removal 3-84
Ribbon Shield Replacement 3-85
Safety Shield Removal 3-87
Top Cover Removal 3-88
Top Cover Replacement 3-90
IBM MONOCHROME DISPLAY
Display Removal 3-92
Display Replacement 3-92
KEYBOARD
Base Removal 3-93
Base Replacement 3-93
Keyboard Assembly Removal 3-94
Keyboard Assembly Replacement 3-94
OPTION ADAPTER
Option Adapter Removal 3-95
Option Adapter Replacement 3-97
SYSTEM
UNIT
Cover Removal 3-98
Cover Replacement 3-98
Power Supply Removal 3-99
Power Supply Replacement 3-102
16 KB Memory Expansion Kit Removal 3-103
16 KB Memory Expansion Kit Replacement 3-105
Speaker Removal 3-106
System Board Removal 3-107
System Board Replacement 3-109
3-2

IBM 5150 Specifications

General

Processor	Intel 8088
Clock Speed	4.77 MHz
RAM	16 KB - 256 KB
Manufacturer	IBM
Model	5150
Release Year	1981
Storage	5.25-inch floppy drives
Graphics	MDA or CGA
Operating System	IBM PC DOS
Ports	Cassette, keyboard
Expansion Slots	5