Description
Key Technical Specifications
- Manufacturer: Autronica
- Board model: AKS-3
- Part number: 7221-268.0000
- Product category: Printed circuit board card
- Primary application: Marine automation and control equipment
- Board format: System-specific plug-in PCB
- Reported origin: Norway
- Reported weight: Approximately 100 g
- Mounting method: Verify from the host equipment assembly
- Connector type: Verify from the installed card and equipment manual
- Supply voltage: Not verified in the public sources reviewed
- Input/output function: Not verified in the public sources reviewed
- Terminal pinout: Not verified in the public sources reviewed
- Firmware or revision: Confirm from the physical board label
- Environmental rating: Verify against host-system documentation
- Marine classification: Confirm vessel-specific approval before installation
- Service status: Legacy/limited-stock component
Public listings identify the Autronica AKS-3 as a PCB card with part number 7221-268.0000. A supplier listing reports an approximate weight of 100 g, while another Autronica parts listing associates the AKS-3 name with a different part number, 7221-260.0000; this discrepancy makes full nameplate verification essential.
Product Introduction
The Autronica AKS-3, commonly listed with part number 7221-268.0000, is a system-specific printed circuit board for legacy marine automation and control equipment. It is intended for replacement work only when the host assembly, board position, connector arrangement, and revision match the original card.
The available public information does not verify the card’s supply voltage, I/O ratings, pinout, or exact control function. Confirm the complete part number from the PCB label and obtain the applicable Autronica documentation before connecting power or field wiring.

AKS-3

AKS-3
Troubleshooting Quick Reference
| Symptom | Possible Cause | Relevance to This Part | Quick Check Method | Recommendation |
|---|---|---|---|---|
| Host controller does not power up | Main supply, fuse, power board, or shorted module | ❌ Low | Measure the host system’s specified DC supply at the incoming terminals and inspect power indicators | Check system power before replacing the AKS-3 |
| Host system powers up but reports a missing card | Loose connector, wrong board position, damaged contact, or PCB fault | ✅ High | Compare the card position with the equipment drawing, isolate power, and reseat the PCB | Inspect contacts and seating before replacement |
| Several system functions fail together | Shared power, backplane, bus, or controller fault | ❌ Low to medium | Determine whether faults are limited to the AKS-3 position or affect adjacent cards | Diagnose common infrastructure before condemning this PCB |
| One controlled function is inactive | Field device, wiring, connector, or card-channel fault | ✅ Medium | Apply an approved simulator or known-good signal and compare the response with a known-good channel | Replace the card only after proving the signal reaches the correct input |
| Output remains energized | External wiring, relay, configuration, or output-channel failure | ✅ Medium | Isolate the field circuit and measure the output state using the approved service procedure | Diagnose the external circuit before replacing the PCB |
| Intermittent operation occurs during vibration | Loose connector, cracked solder joint, corrosion, or unstable supply | ✅ Medium | Inspect under magnification and perform an isolated continuity check | Correct mechanical and wiring issues before installing another card |
| System resets during operation | Voltage drop, overloaded supply, thermal stress, or internal PCB fault | ✅ Medium | Monitor the host-system supply during an approved operational test and check cabinet temperature | Correct supply and thermal issues before replacing the card |
| Visible corrosion or burnt components | Moisture, salt contamination, overvoltage, or short circuit | ✅ High | Photograph the damage and inspect nearby connectors, harnesses, and mounting hardware | Quarantine the PCB and identify the failure cause before installing a replacement |
| Replacement card fits but does not function | Wrong revision, incorrect equipment family, or part-number mismatch | ✅ High | Compare the full number, revision, connector layout, and host-equipment card list | Stop installation and obtain written compatibility confirmation |
| Fault follows the card after an approved swap | Internal PCB failure | ✅ High | Record the original fault, install a known-good exact equivalent, and repeat the approved test | Replace with an exact, tested equivalent and document the result |
| New card causes a fuse trip | Incorrect orientation, shorted PCB, or incompatible supply | ✅ High | Remove power, inspect orientation and connectors, then compare resistance with a known-good card | Do not reapply power until installation and compatibility are verified |
Critical warning: Public listings show a part-number discrepancy for the : 7221-268.0000 is widely listed, while another supplier identifies as 7221-260.0000. Do not purchase or install by model name alone. If the fault remains unclear, contact technical support with the equipment model, complete card label, revision, board position, connector photos, alarm log, supply measurements, and test results.
Frequently Asked Questions (FAQ)
What is Autronica ?
The is identified by several supplier listings as an Autronica printed circuit board card, commonly referenced as 7221-268.0000. Its exact function depends on the host marine automation system and card position.
Is 7221-268.0000 definitely the correct part number for every ?
No. Public sources are inconsistent. Several listings pair with 7221-268.0000, while another parts listing pairs with 7221-260.0000. Photograph the original PCB label and verify the full number, revision, connector arrangement, and equipment documentation before ordering.
What electrical specifications does the have?
The reviewed public sources do not establish verified supply voltage, current draw, I/O ratings, terminal pinout, or communication protocol. Obtain the applicable Autronica manual or an engineering-approved test specification before wiring the card.
Is the a universal replacement PCB?
No. Treat it as a system-specific marine card. Match the host equipment, board location, hardware revision, connector layout, power requirements, and configuration. A card with the same general appearance may not be electrically compatible.
Can I replace the while the system is energized?
Do not hot-swap it. Isolate power using the vessel’s approved maintenance procedure, verify the equipment is safe, and confirm temporary alarm or control measures before removing the PCB.
Is the obsolete?
It appears to be a legacy, limited-stock marine electronics component. Public listings show used and other supplier inventory, but they do not establish current production status. Request the exact condition, revision, traceability, test report, and warranty for the offered card.
Why is a used cheaper than a factory replacement?
Used or surplus marine PCBs may come from decommissioned equipment or remaining inventory. The seller should clearly state New Original, New Surplus, Used, or Refurbished (tested). Request photographs of both PCB sides, connector condition, corrosion inspection results, functional test evidence, lead time, and warranty terms before purchase.

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