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This is a very specific request related to the firmware of a GE Mark V control system component.
The item you are asking about, GE DS200TCQBF1BAD Software PROM Set, is not a circuit board itself, but rather a set of Programmable Read-Only Memory (PROM) chips that contain the firmware for a specific circuit board in the GE Speedtronic Mark V system.
Here is a breakdown of what this part number signifies:
💾 Product Overview: DS200TCQBF1BAD Software PROM Set
This set of PROMs (likely one or more chips) holds the operating instructions and logic for a specific type of Mark V I/O board.
| Specification | Detail |
| Product Type | Software PROM Set (Firmware Chips) |
| Target Board | Likely the I/O processor board (such as the UCC or STCA board) within the I/O core, or potentially the TCQB board, as suggested by the ‘TCQB’ portion of the code. |
| Firmware Revision | BAD (This is the specific firmware version code) |
| System | GE Speedtronic Mark V Turbine Control System |
| Purpose | Contains the operational program, configuration data, and specific logic for the host circuit board. |
1. Component Identification Breakdown
The structure of the part number provides clues about the set’s function:
- DS200: Indicates a board or component family within the GE Mark V series.
- TCQB: This section usually refers to the Turbine Control Q/R/S/T Board (often associated with pulse rate, generator, and line signals), or is sometimes used to denote the I/O processor associated with that function block.
- F1: Designates the functional type or hardware revision.
- BAD: This is the crucial code for the firmware/software revision.
2. Importance and Compatibility
The “BAD” software revision code is critical for system compatibility. In Mark V systems, all PROMs across the various boards (UCC, STCA, IS200, etc.) within a given cabinet or core must have matching or compatible revision codes to ensure correct communication and operation.
- Risk of Mismatch: Installing a PROM set with the wrong revision (e.g., a “BAA” set instead of “BAD”) can lead to the system failing to boot, communication errors between the redundant cores (R, S, T), or incorrect processing of sensor data.
- Functionality: This particular firmware version (BAD) provides the system with specific operational features, logic controls, and diagnostic routines necessary for a certain configuration of the turbine (e.g., a specific model or fuel type).
3. Replacement and Installation
- Handling: PROMs are highly sensitive to Electrostatic Discharge (ESD). They must be handled carefully using grounded wrist straps and appropriate tools.
- Orientation: The chips must be inserted into their sockets with the correct orientation, aligning the notch or pin 1 marker on the chip with the corresponding marker on the socket. Incorrect insertion can permanently damage the chip or the host board.
- The Set: A “Software PROM Set” typically includes all the necessary firmware chips (often 2 to 4 chips) that work together to load the complete program onto the host board. All chips in the set must be used together.
