IC3600SCBA1A: GE Speedtronic Mark I-II Circuit Board

The IC3600SCBA1A is a printed circuit board from GE's Mark I / Mark II Speedtronic (IC3600) turbine control system, offered here clean, tested and used. It is part of the SCB group of IC3600 boards a group in which, importantly, different suffix letters denote genuinely different functions.

Where the SCBA Sits in the IC3600 Card Set

The Mark I and Mark II panels are built from dozens of plug-in cards in a rack, spanning logic, analog, servo, power-supply and interconnection functions. The SCBA is one of the SCB-series boards in that population. General-reference listings describe it simply as a Speedtronic component printed circuit board within the Mark I-II set. You can browse the wider group on our GE Mark I-II IC3600 Cards collection, part of the full GE Speedtronic Turbine Control Boards range.

What We Can and Cannot Confirm About the SCBA Function

We hold ourselves to what the sources actually support. Public documentation for the SCBA is thin, and, critically, the SCB letters do not describe a single shared function: within this same group, the SCBB is referenced as a terminal and interconnection card and the SCBN as an interface board assembly, which are different jobs. For that reason we do not assign the SCBA a specific function we cannot verify, and we do not invent pinouts, voltages or channel counts for it. What we can say with confidence is that IC3600SCBA1A is a distinct Mark I-II board identified by its own suffix, and that it must be matched by that exact suffix rather than by the general "SCB" family. If you can send the board's markings or the panel schematic reference, we will confirm its role in your specific system.

Diagnosing an IC3600 Board Before Replacement

Whatever the SCBA's precise function, the general Mark I-II troubleshooting discipline applies before you replace it:

• Power first. Confirm the DC supplies feeding the card rack are within tolerance; a supply fault can implicate many cards at once.
• Connector and seating. Reseat the board and clean the edge-connector fingers. Oxidation and loose seating are among the most common real faults on 40-plus-year-old cards and often masquerade as a failed board.
• Look upstream and downstream. Confirm the boards and wiring on either side of the SCBA are healthy, so you are not chasing a symptom that originates elsewhere.
• Wiring and terminations. Inspect associated wiring and terminals for corrosion or looseness before condemning the card.

Matching the SCBA1A Part Number and Revision

Read the number as IC3600SCBA (function code) plus 1A (variant and revision). Because SCBA, SCBB and SCBN are different boards, the letter after "SCB" is not interchangeable, and the trailing character identifies the revision. Match the complete number to your installed board. For help reading GE's coding, see the GE Speedtronic Part Number Decoder.

What to Send Us for an SCBA1A Quote

Please include the full part number (IC3600SCBA1A), the revision printed on the board, a clear photo of the label and component side, your turbine model and Speedtronic generation (Mark I or Mark II), the quantity, and your urgency. The board markings and any schematic reference are especially helpful for this part.

Request a Quote for the IC3600SCBA1A

We supply the IC3600SCBA1A worldwide on DDP terms and accept purchase orders. Use Request a Quote to send your details, and we will respond within 24 hours with availability and condition options.

General Information about the Product
Part Number	IC3600SCBA1A Mark I-II IC3600
Description	IC3600SCBA1A By General Electric IC3600SCBA PCB Component Card
Condition	used Clean and Tested. With 1 Year Warranty.