Decoding DS3800HLEA1C1B

GE structured Speedtronic part numbers consistently across the DS3800 line: the DS3800 prefix identifies the board family, the four letters that follow — HLEA — identify the function (logic element board), and the trailing 1C1B identifies the production run and revision, run "C" and revision "B" in this case. We haven't found a published, reliable source explaining exactly what changed between individual revision letters, and we're not going to guess at specifics we can't confirm. What is documented is that GE's own part-number conventions are typically addressed in the Renewal/Warranty Replacement section of the system hardware manual, and that the safest practice is matching the full suffix to your existing board rather than assuming any HLEA will do. If you're unsure, send us a photo of your current board's label and we'll help confirm before you order. Our GE Speedtronic Part Number Decoder covers this convention across Mark IV, V, and VI hardware.

The Logic Element Board's Job

The DS3800HLEA processes discrete logic signals inside a GE Speedtronic Mark IV control system, receiving inputs from sensors and other control devices and executing the logical operations behind the system's decision-making. It carries 10 status LEDs on the front of the board, which run a brief self-test at power-up, 3 configuration jumpers, and a transistor-to-transistor logic (TTL) device managing the interface between its integrated circuits. This DS3800HLEA1C1B is a used board, cleaned and tested, with a 1-year warranty.

What to Rule Out Before You Replace This Board

Logic faults on a Mark IV panel are frequently blamed on the element board when the actual cause sits elsewhere in the chain:

• Field contacts, relays, and terminal wiring upstream of the logic input boards — a stuck or dirty contact reads exactly like a logic card problem.
• The separate logic input boards (DS3800HLIA and HLIC), which condition signals before they reach this element board. A fault here can look identical to an element-board fault even though it's a different physical card.
• Jumper settings — confirm the 3 jumpers on the board being replaced match what your documentation calls for; a jumper set wrong after an earlier swap can masquerade as a hardware failure.
• Which processor channel is alarming — under Mark IV's two-out-of-three voting across <R>, <S>, and <T>, a fault confined to one channel may not trip the unit, so confirm the specific channel before pulling a card.

Once wiring, the input boards, and jumper settings are confirmed correct, and the fault still traces to this card, a replacement HLEA is warranted.

Boards That Work Alongside the HLEA

The DS3800HLIA and DS3800HLIC logic input boards feed conditioned signals to the HLEA, and the DS3800HLNE serves as the rack's network/highway controller for logic communication. Our GE Mark IV DS3800 Boards collection covers the surrounding family if you need to cross-reference part numbers for your panel.

Information We Need to Quote This Part

• The complete part number and suffix as printed on the label
• A photo of the label, particularly if it's worn or hard to read
• Turbine model and confirmation the control system is Mark IV Speedtronic
• Quantity and urgency — stocking order or unit down

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General Information about the Product
Part Number	DS3800HLEA1C1B Mark IV DS3800
Description	GE General Electric DS3800HLEA1C1B DS3800HLEA Logic Element Board Mark IV
Condition	used Cleaned and Tested. With 1 Year Warranty.