When replacing parts in your television, most DIYers focus on the model number and the part number. While both are important, there is another layer of identification that can impact whether your repair is successful. This includes version codes, factory suffixes, and serial numbers.
At TVpartsToday, The World's #1 Hub for DIY TV Repair, we regularly help customers navigate these identifiers. They can seem confusing at first, but understanding how they work can help you avoid compatibility issues and get your TV repaired faster.
Would you rather watch a video covering some of this information instead? Check out our YouTube video below:
Want to watch a video covering part number identification instead? Check out our YouTube video below:
What These Identifiers Actually Do
Version codes, factory suffixes, and serial numbers are used by various TV manufacturers to distinguish between different internal configurations of the same TV model. Two televisions may share the same model number but contain different panels, firmware, or internal boards depending on when and where they were produced.
To distinguish between these differences in the same model of TV, each manufacturer includes either a version code (Samsung), a factory suffix (LG), or a serial number (most other brands). These identifiers help narrow down which parts are likely to be compatible with your specific unit. However, they are not a perfect substitute for the exact part number printed on the board itself.
How Different Brands Use Them
Each manufacturer approaches these identifiers a little differently, which is where confusion often begins.
Samsung TVs use version codes, typically short combinations of letters and numbers tied to the model (such as AB01, DS03, etc.). These codes indicate which internal configuration the TV uses and which parts are compatible. An example of a Samsung model number sticker with the Version Code highlighted below:

LG TVs rely on factory suffixes, usually attached to the end of the model number. These suffixes represent specific production variations, and certain boards must match that suffix to function properly. This suffix is 7-letters (BUSWLJR, AUSWWLR, etc.) and usually runs up and down the length of the model number sticker. An example of an LG model number sticker with the Factory Suffix highlighted below:

Most other brands often depend on serial numbers to track production differences. These numbers can help identify which internal components were used during manufacturing, though they aren't as effective as the LG and Samsung methods in helping to identify the correct parts. An example of a Hisense model number sticker with the Serial Number highlighted below:

Sony TVs are somewhat different, as they typically do not rely heavily on suffixes or version codes. Instead, identifying the correct replacement often depends more on matching board identifiers through trusted sources like us here at TVpartsToday!
The Most Important Rule: Part Number First
While version codes, factory suffixes, and serial numbers are helpful at narrowing down the correct part, they are not the final authority when it comes to compatibility.
The part number printed on the board itself is the only way to guarantee an exact match.
If you have access to the part number, always use it. This eliminates guesswork and ensures the replacement board will function correctly in your TV. Having trouble finding it? Give us a call at 930-212-1975 or email us a picture of the part at info@tvpartstoday.com.
What If You Cannot Find the Part Number?
There are situations where the part number may be missing, faded, or difficult to read. In these cases, using the model number along with the factory suffix, version code, or serial number can help you get close to the correct match.
This approach can significantly narrow down your options and often lead you to a compatible replacement. However, it is still not as reliable as confirming the exact part number.
For the best results, we always recommend taking a clear photo of your board and sending it to our team. This allows us to verify the correct part for you and remove any uncertainty before you order.
Why These Details Matter in Real Repairs
Using an incorrect part, even one that looks identical, can lead to a range of issues. The TV may power on but fail to display an image. Inputs may not function correctly. Firmware may not align with the panel.
These problems often stem from subtle differences tied to version codes or factory variations. This is why combining all available information is so important when selecting a replacement.
By starting with the part number and using additional identifiers as supporting information, you dramatically increase your chances of a successful repair.
A Smarter Approach to DIY TV Repair
DIY TV repair is most effective when you combine accurate diagnosis with precise part selection. Understanding how manufacturers label their components gives you a clear advantage and helps you avoid unnecessary trial and error.
If you are ever unsure, reaching out for verification can save time, money, and frustration. A quick confirmation before ordering is far easier than dealing with a return or a second repair attempt.
At TVpartsToday, The World's #1 Hub for DIY TV Repair, we provide the expertise, inventory, and support needed to help you identify the correct part with confidence. Whether you have the part number in hand or need help narrowing it down, we are here to make sure you get the right match and complete your repair successfully.
Need Help?
If you’re still unsure about the issue or need to replace a part, reach out to TVpartsToday. We can help you identify the exact cause of the problem and provide the right replacement part!
Would you rather watch a video? Check out our helpful Troubleshooting 101 playlist over on YouTube!
Would you rather chat with a seasoned repair expert? Head on over to our TVRepairHelp subReddit!
We also have a helpful chatbot called the Wizard of TV Repair that may be of assistance!
Need help finding the right board or part?
Call us at 930-212-1975 or browse our inventory online.
DIY-friendly parts, fast shipping, and expert support – only at TVpartsToday, the World's #1 Hub for DIY TV Repair!