IBM L40 SX Service Manual

Model L40 SX (8543)
General Checkout . . . . . . . . . . . . . . . . . 24
Memory Checkout . . . . . . . . . . . . . . . 25
Power Systems Checkout ........... 27
Symptom-to-FRU Index . . . . . . . . . . . . . . 32
Undetermined Problem . . . . . . . . . . . . . 36
Related Service Procedures ............ 37
Checking Installed Devices ........... 37
Power-on Password . . . . . . . . . . . . . . 37
How to Run Advanced Diagnostics ....... 37
Product Overview . . . . . . . . . . . . . . . . . 38
FRU Removals and Replacements ......... 39
Locations . . . . . . . . . . . . . . . . . . . . . 42
Parts Listing . . . . . . . . . . . . . . . . . . . 43
 Copyright IBM Corp. 1995 23

IBM L40 SX Specifications

General

Processor Speed	20 MHz
RAM	2MB
Max RAM	18MB
Storage	120 MB HDD
Graphics	VGA
Form Factor	Laptop
Operating System	MS-DOS
Floppy Drive	1.44MB 3.5"
Ports	Serial, Parallel