DS3800HXMA

About the DS3800HXMA

The DS3800HXMA is a printed circuit board from GE designed as an expander card PCB module for their Speedtronic Mark IV system. The Mark IV is a gas and steam engine turbine control system that uses integrated chipsets with built-in overlaps to keep the system up and running, even when one PCB experiences an electronics failure. The Mark IV can be used for fuel, air and emissions control, for the synchronization of the generator and the system, and to protect the system from unsafe operating conditions.

The DS3800HXMA has the following specifications:

• Is factory-drilled in all four corners. Two have clips installed.

• Has four resistor networks. These may be in place for voltage division or for analog/digital conversion.

• Has a single red LED

• Has one TP test point. This is located near the LED.

• Has fifteen switches (jumpers.) These are labeled as follows: four marked LS1/LS2/LS3/LS4; four marked FS1/FS2/FS3/FS4; four marked LAB5/LAB6/LAB7/LAB8; two marked FAB5/FAB6; one labeled Test.

• Has one long female connector on its left edge. This is marked 218A4553-1 A-mp 533002-1. Behind this connector, the board is numbered 2/10/20/30/40/50/60/70/80.

• Has thirty-five integrated circuits. These include circuits such as S8714AS SN74LS74AN, SN74LS02N (Motorola,) 74LS126PC, and HM6116P2.

• Resistors on this board tend to be a ceramic covered metal film.

Installation guidelines for the DS3800HXMA can be found in General Electric manuals and data sheets for this product. GE was the original provider of technical support for Mark IV products.