DA94-02679B Samsung Assembly PCB EEPROM;0X01 AW2 14 DA92 00593H OEM is a printed circuit board (PCB) assembly that incorporates a non-volatile EEPROM device alongside the control electronics used in Samsung household appliances. As a PCB assembly, it combines the memory element with voltage regulation, input/output interfaces and signal conditioning components to form a functional module that stores persistent data and supports runtime control functions.
Within an appliance, this assembly typically holds firmware, configuration parameters, calibration data and diagnostic logs that the main microcontroller reads and updates during operation. It thus interfaces directly with the appliance’s MCU,power supply and peripheral systems such as motor drivers,valve and heater relays,temperature sensors and user interface circuitry; communication between the EEPROM and controller is commonly carried out over serial protocols or dedicated memory buses. Becuase the module retains critical settings and error history, it plays a central role in correct startup, cycle selection, safety interlocks and fault recovery.
This article explains the assembly’s functional purpose and typical use cases, outlines how to verify compatibility by matching part numbers and firmware revisions, describes common failure symptoms (for example loss of saved settings, boot faults, persistent error codes or intermittent control behavior), and provides practical troubleshooting and replacement considerations. Readers will find guidance on diagnostic checks (visual inspection, power-rail verification, bus signal analysis and EEPROM read/write checks), safe handling and ESD precautions, and notes on whether to replace the entire assembly or attempt EEPROM reprogramming, along with the tools and information required for each approach.
Table of Contents
- Function and Role of the Assembly PCB EEPROM in Samsung Appliance Control Systems
- How the DA94-02679B Samsung Assembly PCB EEPROM;0X01 AW2 14 DA92 00593H OEM Works Inside the appliance: Data Storage, Bootloader and Bus Interfaces
- Common Failure Symptoms, Error Codes, and Signal‑Level Indicators of PCB EEPROM Faults
- Replacement Considerations, Installation Procedures, and Troubleshooting Diagnostics for Assembly PCB EEPROMs
- Q&A
- In Conclusion
Function and Role of the Assembly PCB EEPROM in Samsung Appliance Control Systems
The DA94-02679B Samsung Assembly PCB EEPROM;0X01 AW2 14 DA92 00593H OEM is a small non-volatile memory device mounted on the appliance control assembly that stores board-specific configuration and operating parameters. The EEPROM retains calibration values, model and serial identifiers, user settings, fault/event logs, and boot parameters that the main microcontroller reads during power-up and runtime. Because these values determine sensor scaling,timing,and feature enablement,the EEPROM’s contents directly affect how the control board behaves and how it interoperates with other modules in the appliance.
In practice, technicians must treat the EEPROM as part of the control assembly’s identity: replacing the physical PCB without transferring or reprogramming the EEPROM can result in mismatch faults, disabled features, or incorrect sensor readings. Common service workflows include reading the existing EEPROM to back up calibration and serial data, copying those contents to a replacement board, or using service tools to restore correct parameters after a firmware update. Typical symptoms of EEPROM-related issues include persistent configuration errors, loss of learned settings after power cycles, or boot failures; resolving those problems frequently enough requires data recovery or programming rather than simple component replacement.
- Symptoms of EEPROM issues: persistent error codes, loss of settings, incorrect sensor calibration, or boot/communication failures.
- Service actions: backup EEPROM data, program replacement EEPROM with original parameters, or diagnose with read/write service tools.
| Item | Description |
|---|---|
| Part | DA94-02679B Samsung Assembly PCB EEPROM;0X01 AW2 14 DA92 00593H OEM – on-board non-volatile memory for the control assembly |
| Function | Stores calibration, configuration, fault logs, and board identifiers read by the main controller |
| Typical contents | Calibration constants, model/serial IDs, feature flags, learned sensor offsets, and event counters |
How the DA94-02679B Samsung Assembly PCB EEPROM;0X01 AW2 14 DA92 00593H OEM Works Inside the Appliance: Data Storage, Bootloader and Bus Interfaces
The DA94-02679B Samsung Assembly PCB EEPROM;0X01 AW2 14 DA92 00593H OEM serves as the board-level non-volatile store that the appliance main controller and bootloader consult during startup and normal operation. On power-up the bootloader reads configuration blocks and validation flags from the EEPROM to determine hardware configuration,firmware compatibility and whether to enter recovery or normal run modes. In practice this component contains model identifiers, calibration constants for sensors and actuators, service counters and recent fault logs; losing or replacing the EEPROM without transferring its contents can cause misidentified hardware, lost calibrations or boot failures even when the main firmware is intact.
- Key functions: persistent configuration storage, boot-time flags, and fault/service log retention.
- Common technician actions: read/clone EEPROM via I2C programmer, verify checksums, and restore calibration tables when swapping boards.
- Compatibility concerns: match memory capacity,addressing,and bus voltage levels (SDA/SCL pull-up network) to avoid bus conflicts.
| Item | description |
|---|---|
| Typical bus | I2C/SMBus on 24-series EEPROMs (some variants may use SPI); requires correct addressing and pull-up resistors |
| Stored data | Model ID, calibration constants, service counters, fault codes, and bootloader flags/checksums |
| Failure symptoms | No ACK on bus, appliance enters error or service mode, or peripherals miscalibrate after board replacement |
Behavioral and electrical details matter during diagnosis and replacement: the EEPROM responds to read/write cycles with page sizes and write delays that the bootloader expects, and excessive write cycles can wear pages without built-in wear leveling.Technicians should probe the bus with a logic analyzer to confirm SDA/SCL toggles and ACKs, and confirm voltage domain compatibility (3.3 V vs 5 V) before swapping parts. When servicing, either clone the EEPROM image to the replacement board or use manufacturer service tools to reprogram calibration and identification blocks so the bootloader and higher-level control code initialize the appliance correctly.
Common Failure Symptoms,Error Codes,and Signal‑Level Indicators of PCB EEPROM Faults
The DA94-02679B Samsung Assembly PCB EEPROM;0X01 AW2 14 DA92 00593H OEM is the non-volatile memory device on the control PCB that retains board-specific parameters,calibration tables,and system identifiers used by the appliance firmware. When the EEPROM content is unreadable, corrupt, or incompatible with the controller, the board commonly generates persistent fault codes or fails to complete its boot sequence because configuration data cannot be validated. Technicians will see this behavior as startup hangs, repeated reset cycles, or firmware-level error messages tied to EEPROM read/write checks; for example, a repeated “0x01” style fault or an “AW2 14” configuration mismatch typically points to failed EEPROM access rather than a random sensor fault.Replacement or repair requires a unit that matches the memory type, address map, and supply voltage of the original assembly to maintain compatibility with the DA92-00593H family of boards and their firmware checksums.
- Boot/initialization failure – controller halts or loops when EEPROM read fails; often accompanied by a stable low SDA or no SCL clocks.
- Specific error codes (e.g., 0x01, AW2 14) – indicate checksum, address, or read/write errors in stored configuration.
- I2C communication faults – repeated NACKs, missing ACK, or noisy clock traces on SDA/SCL lines.
- Intermittent behavior – marginal Vcc or weak pull-ups cause sporadic corruption or transient read errors that appear under temperature or load.
| Item | Description |
|---|---|
| 0x01 / Boot read error | No ACK on I2C; Vcc absent or SDA held low - suggests power or device failure |
| Checksum/config mismatch (AW2 14) | I2C activity present but repeated NACKs or corrupted data frames – indicates corrupted contents or incompatible EEPROM mapping |
Practical diagnosis starts with passive measurements: confirm the EEPROM supply voltage (commonly 3.3 V or 5 V) and the presence of proper pull-up resistors on the SDA and SCL lines, then observe traffic with a logic analyzer or oscilloscope.Expected idle line levels should be near Vcc and clock pulses should be clean edges; look for stuck-low lines, missing clocks, or excessive ring/noise. If electrical signals are normal but the controller still reports errors, the stored data may be corrupt or the device ID/address dose not match firmware expectations – in those cases replace the module with a verified compatible DA94-02679B assembly or reprogram with a known-good image, taking care to use the correct address map and voltage domain to avoid further damage.
Replacement Considerations, Installation Procedures, and troubleshooting Diagnostics for Assembly PCB EEPROMs
When replacing or diagnosing a DA94-02679B Samsung Assembly PCB EEPROM;0X01 AW2 14 DA92 00593H OEM, remember the EEPROM typically stores board-specific configuration, calibration values, and serial identifiers that the main controller uses at startup. A replacement that is electrically identical can still fail to restore full functionality if firmware versions or stored calibration tables do not match the appliance model or region; technicians frequently enough need to read and preserve the original contents before removal so that device-specific parameters can be transferred or reprogrammed. Handle the board with ESD protection and confirm the service part number and connector pinout against the schematic or a known-good board before attempting a swap to avoid mismatches in signal levels or bus assignments.
Installation and troubleshooting start with basic power and bus checks: verify the EEPROM supply voltage and clock/data lines, then confirm continuity of ground and connector pins. Where the EEPROM is soldered, desoldering requires appropriate temperature control or replacing the entire assembly; where the memory is socketed or removable, use a programmer to backup the EEPROM contents and write the backup to the replacement device if required. Common diagnostic steps include reading the EEPROM with a hardware programmer to check checksums or magic values, observing error codes from the appliance during POST, and swapping in a verified board to isolate failures. Practical tools include a multimeter for supply checks, an EEPROM programmer or in-circuit reader for content inspection, and the manufacturer’s service tool or logs to validate that the replacement matches expected firmware and calibration tables.
- Pre-replacement: verify part number, back up EEPROM contents, and document connector orientations.
- installation: power down, discharge capacitors, observe ESD, mount/ solder replacement, then restore any required EEPROM image.
- Troubleshoot: confirm supply voltages, read EEPROM for corrupt data, check error codes, and perform a controlled test cycle.
| Item | Description |
|---|---|
| Part number | DA94-02679B Samsung Assembly PCB EEPROM;0X01 AW2 14 DA92 00593H OEM |
| Function | Stores board-specific configuration, calibration, and device identifiers |
| Interface / Form | On-board serial EEPROM (commonly I²C/serial protocol); may be surface-mount or socketed |
| Typical diagnostics | Voltage/continuity checks, EEPROM read for checksum/contents, manufacturer error codes |
Q&A
What is the DA94-02679B Samsung Assembly PCB EEPROM;0X01 AW2 14 DA92 00593H OEM and what does it do?
This is a printed circuit board (PCB) assembly used in certain Samsung appliances (typically refrigerators or freezers). The board includes an EEPROM chip that stores configuration data, calibration values, adaptive learning data and sometimes fault history and settings. The assembly controls sensors, relays, compressor/fan operation and communicates with the rest of the appliance. The printed labels (DA94-02679B, DA92-00593H, 0X01 AW2 14) identify the board and firmware/hardware revision.
How can I tell if my appliance uses this exact board and is it compatible with my model?
Check the model and serial number sticker on your appliance and compare the service manual or parts list for that model.Also inspect the failed board for matching part numbers and revision codes (DA94-02679B, DA92-00593H, and the revision string). Even small differences in revision or connector layout can make a board incompatible, so only install a board that is listed as compatible for your specific appliance model. If in doubt, contact an authorized Samsung parts supplier or technician with your appliance model number.
What symptoms indicate the EEPROM or PCB assembly has failed?
Common symptoms include complete failure to power, intermittent or persistent error codes on the display, non-starting compressor or fans, inability to change settings, temperature control failure, or erratic behavior such as lights or displays flickering. If the board has visible damage (burnt components, corrosion) or the appliance shows electronic fault codes that point to the main control board, the PCB/EEPROM assembly may be at fault.
Can I replace only the EEPROM chip instead of the entire assembly?
Sometimes the EEPROM chip can be replaced or reprogrammed, but this depends on the board design and your skills. Many technicians prefer to replace the whole OEM assembly as soldering and programming surface-mount EEPROMs requires precision equipment and firmware copies. if you plan to replace the chip only, you must be able to desolder/solder small SMD components and clone or restore the original EEPROM contents to the new chip to preserve calibration and model-specific data.
Do I need to clone or program the original EEPROM to the replacement board? How is it done?
In many Samsung boards the EEPROM contains crucial configuration and learned data; replacing the board with a blank EEPROM can result in lost settings or error codes. Cloning is recommended when replacing just the EEPROM or swapping boards. Technicians use an EEPROM programmer (e.g., CH341A, TL866 or professional service tools), software to read/write the chip image, and an adapter or hot-swap clip if reading in-circuit. Always make a full backup of the original EEPROM before writing to a replacement. if you lack the tools/experience, have an authorized service center perform the cloning.
What are the safe installation steps and precautions?
Disconnect mains power before touching the board. Ground yourself with an anti-static wrist strap to prevent ESD damage. Photograph connector positions before removal so you can reconnect correctly. Remove and replace the board carefully, avoid bending pins, and ensure connectors are fully seated. After installation, restore power and observe for normal operation and any error codes. If you cloned EEPROM data, verify settings and perform any required initialization procedures described in the service manual.If you are not comfortable with these steps, hire a trained technician.
Will replacing this board reset my appliance settings or learned behavior?
Yes-if you install a board with a blank or different EEPROM image, factory settings and any adaptive/learned values (defrost history, temperature calibration, etc.) can be lost and may cause improper operation until relearned or reprogrammed. Cloning the original EEPROM to the replacement preserves those values. Some faults may require additional calibration or a reset procedure described in the appliance service documentation.
Where should I buy an OEM DA94-02679B/DA92-00593H board and does it have a warranty?
Buy only from authorized Samsung parts dealers, official Samsung service centers, or reputable appliance parts suppliers that explicitly list the exact part and revision.OEM parts typically come with a limited warranty from the seller or manufacturer-confirm warranty length and return policy before purchase. Avoid unkown sellers offering very low prices without verification, as counterfeit or non-matching boards can cause additional problems.
to sum up
The DA94-02679B Samsung Assembly PCB EEPROM;0X01 AW2 14 DA92 00593H OEM functions as a critical control and non‑volatile memory element within the associated Samsung assembly. As an EEPROM‑equipped PCB assembly, it stores configuration data, calibration parameters and firmware identifiers that are essential for correct device operation and interoperability. Using an OEM assembly helps ensure component compatibility, factory‑specified tolerances and predictable performance over the service life of the equipment.
as faulty behavior can stem from a variety of causes – from firmware corruption and marginal components to external system faults – a careful, methodical diagnosis is critically important before replacing the PCB assembly. When replacement is required, choosing the correct OEM part, performing any necessary data backup or EEPROM transfers, and following manufacturer procedures for installation, firmware updates and post‑service testing will minimize downtime and reduce the risk of repeat failures.Professional service by trained technicians and documented verification steps further protect functionality and warranty coverage.
the DA94-02679B Samsung assembly PCB EEPROM;0X01 AW2 14 DA92 00593H OEM plays a pivotal role in maintaining device integrity and performance. Proper diagnosis, use of the appropriate OEM replacement and adherence to established installation and testing practices are key to restoring reliable operation while preserving long‑term serviceability.
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