Description
GE DS3800DMPC1G1E | Microprocessor Board
Product Description
The DS3800DMPC1G1E is a General Electric Mark IV DS3800 Microprocessor Board designed for use within GE Speedtronic gas and steam turbine control systems. The DS3800DMPC functions as a microprocessor card and can be installed as an auxiliary board in the Mark IV architecture. The board has two connectors, three configurable jumpers, and a compact component layout containing integrated circuits, resistor networks, resistors, capacitors, and jumper switches. The bottom ribbon connector is associated with communication to a DS3800HMPF board when the DMPC is installed as an auxiliary board. The 1G1E suffix identifies the specific hardware revision and should be matched carefully when replacing an installed board.
Product Datasheet
| Parameter | Specification |
|---|---|
| Brand | General Electric (GE) |
| Model | DS3800DMPC1G1E |
| Base Model | DS3800DMPC |
| Series | Mark IV DS3800 / Speedtronic |
| Product Name | Microprocessor Board |
| Product Type | Microprocessor / Auxiliary PCB |
| Application | Gas and Steam Turbine Control |
| Board Function | Microprocessor control and system interface |
| Board Configuration | Auxiliary Board |
| Onboard Connectors | 2 |
| Configurable Jumpers | 3 |
| Main Processor Device | Motorola MC68B45P |
| Integrated Circuits | Approx. 13 |
| Resistor Networks | 2 |
| Top Connector | Right-angle cable connector |
| Bottom Connector | Ribbon connector |
| Bottom Interface | Associated with DS3800HMPF in applicable auxiliary configurations |
| Revision | 1G1E |
| Mounting | Mark IV DS3800 system dependent |
| Condition | Verify actual item condition |
| Compatibility | GE Mark IV system and revision dependent |
| Discontinued | Legacy / obsolete Mark IV hardware |
Functional Features
- Designed for the GE Mark IV Speedtronic turbine control platform.
- Functions as a dedicated microprocessor board within the DS3800 family.
- Can serve as an auxiliary board in applicable Mark IV configurations.
- Provides two board-level connectors for system integration.
- Includes three configurable jumper positions with labeled settings.
- Uses a Motorola MC68B45P processor device on the documented 1G1E version.
- Includes resistor networks, capacitors, discrete components, and integrated circuits supporting the board’s control functions.
- The bottom ribbon interface can communicate with a compatible DS3800HMPF board when installed as an auxiliary board.
- Compact PCB construction allows installation within the legacy Mark IV control architecture.
FAQ
Q: What is the DS3800DMPC1G1E used for?
A: It is a GE Mark IV Microprocessor Board used in legacy gas and steam turbine control systems.
Q: What does the DMPC designation mean?
A: DMPC identifies the GE DS3800 microprocessor board family.
Q: Is the DS3800DMPC1G1E an auxiliary board?
A: Yes. Product documentation identifies the DMPC as an auxiliary board in applicable Mark IV configurations.
Q: How many connectors does the board have?
A: The documented DS3800DMPC has two connectors: a right-angle cable connector and a bottom-edge ribbon connector.
Q: How many configurable jumpers are provided?
A: The documented DS3800DMPC1G1E has three configurable jumpers, with the jumper positions labeled on the board.
Q: Is DS3800DMPC1G1E interchangeable with DS3800DMPC1F1E?
A: They belong to the same DMPC family but have different hardware revisions. Direct substitution should not be assumed. Verify the original board revision, connector configuration, jumper settings, and Mark IV system documentation before replacement.
Q: What board is associated with the DMPC auxiliary interface?
A: The bottom ribbon connector is documented as an interface that can communicate with a DS3800HMPF board when the DMPC is installed as an auxiliary board.
Troubleshooting & Safety
- Confirm the complete DS3800DMPC1G1E part number and revision before installation.
- Compare the replacement board with the original, including jumper positions and connector arrangement.
- Record all existing jumper settings before removing the original board.
- Inspect the two connectors for bent pins, contamination, oxidation, or damaged housings.
- Check the associated DS3800HMPF interface when communication or auxiliary-board faults are reported.
- Do not change jumper settings without confirming the required Mark IV configuration.
- Use proper ESD protection when handling the PCB because exposed electronic components can be damaged by static discharge.
- De-energize and isolate the associated turbine control equipment before removing or installing the board.
- Turbine control cabinets may contain hazardous AC/DC voltages and stored electrical energy. Follow site lockout/tagout procedures and verify safe voltage before servicing.
- Because Mark IV systems are legacy turbine-control equipment, verify the complete system revision and approved replacement configuration before commissioning.
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