Electronic Theatre Controls
Welcome to ETC's Online Community

KnowledgeBase: Obsession 1 CMOS Battery Information

Table of Contents

Page Details

First published by:
Kelsey Aleckson
on 06-15-2009
Last revision by:
Hans.Hinrichsen
on 12-27-2010
This page has not yet been rated

KnowledgeBase: Obsession 1 CMOS Battery Information This page is locked to prevent further edits

Filed under: ,

The Obsession I motherboard (486) had two different manufacturers over the life of the product. The first motherboard was made by Sigma, and the other was manufactured by Teknor.

See the picture below for the actual location of the battery on the two motherboards.

Sigma Motherboards

The Sigma motherboard was the first board used in the Obsession I console. Sigma boards are identified by the length of the board taking up the entire depth of the console, front to back, and a soldered on battery on the left side next to the 8 sticks of RAM. If your board is a Sigma board, take note of the BIOS version on the chip with a shiny label marked, "AMIBIOS." Its CMOS battery is a 3.6v Lithium-ion barrel-shaped battery with solder mount leads. The ETC part number for Sigma board batteries is BT111.

Teknor Motherboards

The Teknor motherboard can be identified by its 2 sticks of RAM, being shorter than the depth of the console by about 2 inches, and having a disk battery at the back of the console. Its CMOS battery is a 3.6v Lithium-ion flat, silver, circular shaped 2-pin mount located near the rear of the 486 card sitting above. This battery can be pulled off of the board and replaced in the field, although care should be taken to lift it evenly off of the board from UNDER the black plastic, as the plastic is part of the battery. The ETC part number for Teknor boards is BT114.

Recent Comments

Leave the first comment for this page.
Powered by Community Server (Commercial Edition), by Telligent Systems