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Phone: +86 16626708626Description
Key Technical Specifications
- Manufacturer: Autronica
- Board model: AKB-21/2
- Part number: 7255-015.0001
- Product category: PCB card / electronic control module
- Primary application: Marine automation and control equipment
- Board format: System-specific plug-in printed circuit board
- Reported origin: Norway
- Reported weight: Approximately 250 g
- Mounting method: Verify from the host equipment assembly
- Connector type: Verify from the installed board and system 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 the host-system documentation
- Marine classification: Confirm vessel-specific approval before installation
- Service status: Legacy/limited-stock component
Public supplier listings identify the Autronica AKB-21/2 as PCB card part number 7255-015.0001. Listings report an approximate weight of 250 g and show both new and used inventory, but the reviewed sources do not provide a verified electrical datasheet or complete functional description.
Product Introduction
The Autronica AKB-21/2, part number 7255-015.0001, is a system-specific printed circuit board used in Autronica marine automation and control equipment. It is intended for replacement work where the equipment model, board location, connectors, and revision match the original installation.
Public information confirms the board identity but does not establish its supply voltage, I/O ratings, pinout, or exact control function. Verify the host assembly and service documentation before connecting power or field wiring.
AKB-21/2 7255-015.0001
AKB-21/2 7255-015.0001
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 AKB-21/2 |
| Host system powers up but reports a missing board | Loose connector, wrong board position, damaged contact, or PCB fault | ✅ High | Compare the board position with the system drawing, isolate power, and reseat the card | Inspect contacts and seating before replacement |
| Several functions fail together | Shared power, backplane, communication bus, or controller fault | ❌ Low to medium | Determine whether failures are limited to the AKB-21/2 position or affect adjacent boards | Diagnose common infrastructure before condemning this PCB |
| One controlled function is inactive | Field device, wiring, connector, or board channel fault | ✅ Medium | Apply an approved simulator or known-good signal and compare the response with a known-good channel | Replace the PCB only after proving the signal reaches the correct input |
| Output remains energized | External wiring fault, relay contact issue, configuration error, or output-channel failure | ✅ Medium | Isolate the field output and measure the terminal state with power removed where required | Do not assume the board is faulty until the external circuit is isolated |
| Intermittent operation occurs during vibration | Loose connector, cracked solder joint, corrosion, or unstable supply | ✅ Medium | Inspect under magnification and check continuity while the unit remains de-energized | Correct mechanical and wiring problems before installing another board |
| 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 board |
| 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 board and identify the failure cause before fitting a replacement |
| Replacement card fits but does not function | Wrong revision, incorrect equipment family, or incompatible board suffix | ✅ High | Compare the entire part number, revision marking, connector layout, and host-system board list | Stop installation and obtain written compatibility confirmation |
| Fault follows the PCB after an approved swap | Internal board 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 an immediate fuse trip | Incorrect installation, shorted board, or incompatible supply | ✅ High | Remove power, inspect orientation and connectors, then perform resistance checks against a known-good card | Do not reapply power until the installation and board compatibility are verified |
Critical warning: The reviewed public sources do not verify the AKB-21/2 supply voltage, terminal pinout, I/O function, or protection ratings. Do not install it based only on the model number. If the fault remains unclear, contact technical support with the equipment model, complete board label, revision, board position, connector photos, alarm log, supply measurements, and test results.
Frequently Asked Questions (FAQ)
What is Autronica /2 7255-015.0001?
It is identified by supplier listings as an Autronica printed circuit board card with the model /2 and part number 7255-015.0001. It is associated with marine automation and control equipment.
What exact function does the /2 perform?
The public sources reviewed identify it as a PCB card but do not provide enough authoritative technical information to verify its precise control, input, output, or communication function. Confirm the function from the host-equipment manual, board schematic, or original Autronica documentation.
Is this a universal replacement PCB?
No. Treat the /2 as a system-specific board. Match the equipment model, board location, connector arrangement, revision, power requirements, and configuration before purchase. Similar Autronica PCBs may not be interchangeable.
Can I replace the /2 while the system is energized?
Do not hot-swap it. Isolate power under the vessel’s approved maintenance procedure, verify that the controlled equipment is safe, and confirm any required temporary alarm or control measures before removing the board.
Will replacing the PCB preserve the system configuration?
That depends on the host system. The board may not store the complete application or configuration, but replacement can still affect addressing, calibration, jumpers, or system recognition. Photograph the original board and record all settings before removal.
Is the 7255-015.0001 obsolete?
It appears to be a legacy or limited-stock marine electronics component. Public listings show both new and used inventory, but they do not establish current production status. Request the exact board revision, condition, traceability, test report, and warranty for the offered unit.
Why is a used /2 cheaper than a factory replacement?
Used or surplus marine PCBs are often sourced from decommissioned equipment or remaining inventory. The seller should clearly state New Original, New Surplus, Used, or Refurbished (tested). Request photographs of both sides of the PCB, connector condition, corrosion inspection results, test evidence, lead time, and warranty terms before purchase.
