DA94-02679D Samsung Assembly PCB EEPROM;0X05 D603 AW2 14 DA92 00 OEM is a printed circuit board assembly that includes a non-volatile EEPROM element used to store firmware, configuration parameters and service data for a Samsung appliance control module. As an OEM replacement part designation, it identifies the complete control board rather than a loose EEPROM chip, and it typically combines a microcontroller, memory devices, power regulation components and input/output driver circuitry on a single PCB.
Inside an appliance the assembly serves as the primary logic and memory hub, interfacing between user controls, sensors and actuators. The board reads sensor inputs (temperature, door switches, water level, speed/tachometers, etc.), implements control algorithms in firmware, and drives outputs such as relays, triacs, motor drivers and display elements. It also retains non-volatile data – calibration constants, fault logs, pairing data and model-specific settings – in the EEPROM so that configuration survives power cycles.The PCB therefore interacts with the appliance power subsystem, HMI panel, communication buses to peripheral modules, and the various electromechanical components that carry out physical functions.
This article explains the functional role of the DA94-02679D assembly, how to confirm compatibility with specific Samsung models, common failure symptoms to watch for, stepwise troubleshooting methods and practical replacement considerations. Readers will find guidance on interpreting fault codes and visual symptoms, basic electrical checks to isolate power and I/O faults, how EEPROM-related problems manifest versus other board or wiring issues, and the mechanical and firmware factors to verify when sourcing or installing an OEM replacement. The content is intended to help technicians, engineers and informed appliance owners perform safe, evidence-based diagnostics and make informed decisions about repair or replacement.
Table of contents
- Function and Role of the Assembly PCB EEPROM in Samsung Control Systems
- How the DA94-02679D Samsung Assembly PCB EEPROM;0X05 D603 AW2 14 DA92 00 OEM Interfaces with Mainboard, Sensors, and Power Regulation
- Common Failure Symptoms, error Codes, and Test Points for PCB EEPROM Fault diagnosis
- Compatibility Matrix, Replacement Considerations, and Step-by-Step installation for DA92/DA94 OEM PCB EEPROM Units
- Q&A
- Wrapping up
Function and Role of the Assembly PCB EEPROM in Samsung Control Systems
DA94-02679D Samsung Assembly PCB EEPROM;0X05 D603 AW2 14 DA92 00 OEM is the non-volatile memory element on the assembly PCB that stores configuration parameters, calibration constants, and system state used by the appliance main processor.This EEPROM holds device-specific data such as calibration offsets, motor adaptation values, regional settings, and fault history so the control board can restore operational parameters after power loss. Technicians identify the module by the printed part string during repairs; the stored data is read and written by the main microcontroller at run-time and survives power cycles, enabling the controller to maintain learned behaviors and serial identifiers without requiring reprogramming on every power-up.
The EEPROM’s behaviour affects compatibility and repair practice: replacing the assembly PCB with one containing different EEPROM contents can change appliance behavior or trigger persistent diagnostics unless the memory is cloned or reprogrammed to match the original values. In practical terms, a failed or corrupted EEPROM can present as recurring error codes, loss of learned motor/valve profiles, incorrect timing of cycles, or a return to factory defaults. Diagnostic and repair steps typically include verifying communication with the EEPROM, reading its contents with a service programmer, and writing validated parameter sets when appropriate to restore correct operation.
- Symptoms of EEPROM issues: repeated error codes after board replacement, reset of user settings, or motor/inverter performance degradation.
- Repair considerations: clone original EEPROM data when swapping control boards or use manufacturer parameter files to reprogram the module.
- Behavioral limits: EEPROM has finite write cycles and stores configuration rather than main executable firmware on most Samsung appliance boards.
| Item | Description |
|---|---|
| part | DA94-02679D Samsung Assembly PCB EEPROM;0X05 D603 AW2 14 DA92 00 OEM |
| Function | Stores non-volatile configuration, calibration, and fault/event logs used by the main MCU |
| Interface | Serial memory interface accessed by the controller (typical interfaces are I²C/SMBus-like on similar assemblies) |
| Typical contents | Calibration constants, learned motor parameters, regional settings, serial IDs, and limited error history |
How the DA94-02679D Samsung Assembly PCB EEPROM;0X05 D603 AW2 14 DA92 00 OEM Interfaces with Mainboard, sensors, and Power Regulation
The DA94-02679D Samsung Assembly PCB EEPROM;0X05 D603 AW2 14 DA92 00 OEM is a small, removable board-level assembly that includes a serial non-volatile memory used by the refrigerator’s mainboard to preserve configuration data, calibration parameters, and fault history. The EEPROM is accessed by the system microcontroller over a standard serial memory interface such as I²C/SMBus, and the board’s pinout and memory map must match the mainboard firmware expectations for direct replacement. In practice this means a swapped or blank EEPROM often produces defaulted sensor offsets, lost learned defrost timings, or model-identification mismatches unless the original memory contents are cloned to the replacement module.
The assembly interfaces to sensors and power regulation indirectly: sensors (temperature probes, door switches, humidity sensors) feed analog or digital signals to the main MCU, which then consults the EEPROM for calibration tables and threshold values before making control decisions. The EEPROM itself is passive but requires a stable Vcc (commonly 3.3 V or 5 V depending on design) and proper pull-ups and decoupling on the bus; power glitches or missing pull-ups can corrupt EEPROM writes and produce persistent faults. Technicians troubleshooting intermittent behavior should verify supply rails, bus continuity, and the presence of expected I²C pull-ups, and may use an EEPROM reader/cloner to preserve service data when replacing the board.
- Common symptoms of EEPROM-related issues: boot errors, loss of saved settings, inconsistent sensor readings, or model ID mismatches.
- Practical check sequence: confirm Vcc and ground, verify bus pull-ups, read device ID/address on the bus, then dump EEPROM contents if needed.
| Item | Description |
|---|---|
| Interface | I²C/SMBus-style serial memory (typical for appliance EEPROMs) |
| Typical Vcc | 3.3 V or 5 V depending on board design; requires decoupling and stable regulator |
| Function | Stores calibration, thresholds, model ID, and fault logs used by the main MCU |
Common Failure Symptoms, Error Codes, and Test Points for PCB EEPROM Fault Diagnosis
The DA94-02679D Samsung Assembly PCB EEPROM;0X05 D603 AW2 14 DA92 00 OEM contains the non-volatile memory that stores calibration constants, configuration parameters and identification data required for correct appliance operation. Failures of the EEPROM manifest as lost settings, repeated initialization cycles, inability to complete firmware handshakes, or persistent service codes that point to configuration corruption rather than a pure power or motor fault. Technicians should verify part compatibility by matching board ID strings and firmware expectations before replacing the module, because a mechanically identical PCB can still require EEPROM cloning or programming to match sensors and actuators on the target appliance.
Diagnosing EEPROM faults requires both static and dynamic checks: measure supply voltage at the EEPROM VCC and ground,confirm pull-up resistors on the I2C/SPI lines,and monitor clock/data activity during boot with a logic analyzer to detect address NACKs or corrupted transfers.Intermittent errors often arise from poor solder joints, damaged pull-ups, or write-protect lines asserted; corroborating an error code with low-level signal evidence differentiates EEPROM corruption from MCU or bus-power faults. When practical, read the device ID and a few configuration bytes with a service programmer to confirm readable content before committing to board replacement.
- Symptom: Repeated boot or initialization loop – Test point: VCC (expect stable 3.3 V or 5 V depending on design) and SDA/SCL clock activity during reset.
- Symptom: Missing calibration or incorrect user-interface behavior – Test point: Read EEPROM ID and key configuration bytes via I2C/SPI programmer.
- Symptom: service code indicating memory or configuration fault – Test point: Check WP (write-protect) and hold/reset lines for correct logic levels.
- Symptom: Intermittent errors after thermal cycling – Test point: Inspect solder joints and measure pull-up resistor values on bus lines.
| Item | Description |
|---|---|
| VCC | Stable supply to EEPROM; typically 3.3 V (check schematic) – fluctuation or absence indicates power domain or regulator fault. |
| SDA / SCL (or MOSI/MISO/CLK) | Serial data and clock lines; should show pull-ups and valid transactions during boot. NACKs or no traffic imply bus/address issues. |
| WP / HOLD | Write-protect and hold pins must be at correct logic level (usually inactive high or low per datasheet) to allow read/write and proper initialization. |
Compatibility Matrix, Replacement Considerations, and Step-by-Step Installation for DA92/DA94 OEM PCB EEPROM Units
The DA94-02679D Samsung Assembly PCB EEPROM;0X05 D603 AW2 14 DA92 00 OEM is a board-level assembly that integrates the control PCB and an onboard EEPROM used to store appliance-specific configuration, calibration constants, and persistent fault counters. The EEPROM typically contains I2C (24Cxx) or SPI-stored parameters such as motor step offsets, sensor calibration tables, and model identifiers; these values determine correct operation on DA92/DA94 class appliances. Functionally,the board behaves as both the control logic and the persistent memory source for the appliance; swapping a replacement PCB without migrating the EEPROM image can produce boot failures,incorrect motor behavior,or retained error states as the control firmware expects model- and unit-specific parameters to be present in non-volatile memory.
Practical replacement requires verifying part numbers and transferring or re-flashing the EEPROM image when necessary. Before installation,document connector pinouts,verify the board revision label and firmware compatibility,and create a full EEPROM dump using a programmer or the manufacturer service interface. During the swap, use ESD protection, disconnect mains power, and confirm power-rail voltages on the new board before connecting actuators. After a successful EEPROM transfer and power-up, clear stored fault codes and run calibration routines to confirm correct operation; if calibration is not possible on the replacement board, reprogram the EEPROM with the original unit’s image to restore unit-specific behavior.
- Verify exact part number and revision on the PCB silkscreen and compare connectors.
- Backup the original EEPROM image (dump) before removing the old board.
- Use an EEPROM programmer or service mode to write the dump to the replacement board.
- Confirm supply voltages and check for shorts before full system power-up.
- Run calibration and clear error logs after installation.
| Item | Description |
|---|---|
| Part number | DA94-02679D (verify revision suffix and OEM labeling) |
| Memory type | Typically I2C EEPROM (24Cxx family) or similar serial NVM |
| Operating voltage | Commonly 3.3 V or 5 V logic on control rails - verify with multimeter |
| Common symptom | Boot loops, calibration errors, or persistent faults after swap without EEPROM transfer |
Q&A
What is the DA94-02679D Samsung Assembly PCB EEPROM (0X05 D603 AW2 14 DA92 00 OEM)?
DA94-02679D is a samsung OEM control PCB assembly designation. The board includes an onboard EEPROM that stores configuration, calibration, and sometimes user settings or firmware parameters.The additional codes (0X05, D603, AW2, 14, DA92 00) are manufacture/revision identifiers used to differentiate firmware/hardware revisions, subassemblies, or batch numbers.
Which Samsung appliance models is this PCB compatible with?
Compatibility depends on the exact part and revision. DA94-02679D and its revision codes are typically matched to a specific series of Samsung appliances (for example microwaves,ovens,or washers). Always confirm compatibility by matching the full part number and revision codes printed on the original board or by checking Samsung parts lists/service manuals for your appliance model before ordering.
What symptoms indicate the EEPROM or this PCB might be failing?
Common symptoms include loss of learned settings (clock/time),repeated or persistent error codes at power-up,failure of control functions (no display,unresponsive touchpad/controls),appliances resetting randomly,or specific feature failures that rely on stored calibration. Visual signs such as burnt components or water damage on the board also indicate potential failure.
Can I replace the PCB and EEPROM myself, and do I need to transfer data/programming?
Basic board replacement (swap-out) is often possible for experienced technicians with mechanical skills. Though, the EEPROM may contain model-specific calibration or configuration data. Replacing a board with an EEPROM that is blank or has different data can cause issues. In many cases you should clone the original EEPROM contents to the replacement board or use an OEM board that already has the correct data. If the EEPROM is surface-mounted, desoldering/soldering requires appropriate tools and skill.
How can I test the EEPROM or confirm it is indeed the cause of the problem?
Start with non-invasive checks: look for visual damage, test power rails to the board, and note diagnostic/error codes. If you suspect the EEPROM,a technician can read the chip using an EEPROM programmer (e.g., SPI/IC programmer) or an in-circuit diagnostic tool. Reading the EEPROM content and comparing against a known-good dump can confirm corruption. For safety and accuracy, diagnostics and in-circuit testing should be done by qualified personnel.
If the EEPROM is corrupted, can it be reprogrammed and where do I get the correct data?
Yes - if you can obtain the original EEPROM dump or firmware image for that exact board revision, it can be reprogrammed using an SPI/I2C programmer. Correct data typically comes from the original EEPROM on the failed board (cloning) or from official service resources. manufacturers do not always publish EEPROM images, so many technicians clone the original chip before replacement. Using incorrect firmware or mismatched revision data can make the appliance inoperable.
Where can I buy a genuine DA94-02679D OEM assembly, and how do I verify it’s authentic?
Purchase from authorized Samsung parts distributors, official Samsung service centers, or reputable appliance-parts resellers. Verify authenticity by checking the full part number,revision codes,physical markings,packaging,and seller return policy/warranty. OEM boards are frequently enough more expensive but are preprogrammed for correct operation; avoid low-cost unknown sellers unless thay provide clear compatibility and return options.
What safety precautions should I follow when handling or replacing this PCB/EEPROM?
Always disconnect mains power before servicing the appliance. Some appliances (especially microwaves) can retain high-voltage charge in capacitors-discharge them safely and only if trained to do so. Use ESD protection when handling boards and chips. If desoldering or reprogramming EEPROMs, use proper tools and avoid overheating surrounding components. when in doubt,contact a qualified appliance technician or Samsung service provider.
Wrapping Up
The DA94-02679D Samsung Assembly PCB EEPROM;0X05 D603 AW2 14 DA92 00 OEM serves as a critical component in the device’s control architecture, with the printed circuit board and its onboard EEPROM storing configuration data, calibration parameters, firmware identifiers and fault history that are essential to correct and consistent operation. As an OEM assembly, it is designed to meet the manufacturer’s electrical and functional specifications, and any alteration or malfunction of this module can directly affect system behavior, diagnostics and user experience.
Proper diagnosis and, when necessary, replacement of this assembly are notable to restore reliable operation and preserve safety and performance. Technicians should confirm part numbers and software compatibility, use appropriate diagnostic tools to isolate EEPROM and board faults, and follow manufacturer-recommended procedures when replacing the unit. When replacement is required, sourcing the correct OEM assembly and observing standard ESD and installation practices minimizes the risk of recurring issues and ensures the equipment returns to intended specifications.
Professional Appliance Service
If your appliance requires professional diagnosis or repair, visit
Revolff Home Services
for expert appliance repair services.
For local appliance service information see
Dryer repair Henderson
.
Replacement parts for many appliance models can also be found at
Reliable-Parts-Hub
.
