IBM 5150 Hardware Maintenance Manual

Power
You have entered this PIC because you were unable to complete the •
POST
or you have an intermittent problem. It is assumed that you I I
have a functional wall outlet and line cord.
~ 1. Tum off the System Unit Power switch and remove the AC
power cord from the wall outlet.
2. Remove the Keyboard and the optional cassette player, if used.
3. Remove all external devices attached
to the Option Adapters
except
the Display.
4. Plug
the AC power cord into the wall outlet.
5. Position the System Unit Power switch On.
DID THE FAILING SYMPTOM REMAIN?
~ NO Reconnect the external devices to the System Unit one
at a time until
the failing symptom returns; then replace
the device causing the failure.
YES
020-1

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