This document is an IBM product manual that provides information on the use and safety precautions of devices with model numbers 6339, 6341, 6342, 6346, 6347, 6348, 2256, and 2257.
This manual covers safety guidelines, battery handling, modem safety, and laser‑product information for several IBM computer models. It includes detailed chapters on overview, external and internal accessory installation for desk‑top, small‑desk, and compact floor models, as well as system configuration updates.
Safety sections describe proper handling of power cables, battery replacement procedures, and warnings about laser‑type CD/DVD drives. Appendices provide battery replacement part numbers, system‑software update instructions, address mapping, IRQ/DMA allocation, and trademark information. This manual is written in Swedish.
Replace the battery with an IBM part number 33F8354 or an equivalent battery recommended by the manufacturer, and avoid exposing it to water or temperatures above 100 °C.
Do not open the CD/DVD unit cover, as it can expose you to harmful laser radiation; the unit contains a laser diode classified as Class 1 and should not be serviced by the user.