Not sure what part to order? Give us a call! 930-212-1975

Identification 101 (And Why It Matters!)

Identification 101 (And Why It Matters!)

Mike Smith |

So you’re ready to replace a TV board – awesome! But before you dive into your DIY repair project, there’s one crucial step you can’t skip: getting the correct part number. We see it all the time - ordering based on the board number instead of the part number leads to mismatched parts, wasted time, and unnecessary frustration.

That’s why we’ve put together this handy guide to identifying part numbers for the four major brands we work with the most at TVpartsToday: Samsung, Vizio, LG, and Sony. Knowing exactly what to look for can make all the difference between a smooth DIY fix and a repair headache.

Let’s break it down by brand - with real tips, real formats, and real DIY confidence.

Would you rather watch a video covering this information? Check out our helpful YouTube video of the same name:


Samsung: The Easiest to Identify

Samsung has the most consistent labeling format, making part number hunting a breeze.

  • Main Boards: Look for a white sticker with a part number that starts with BN94-XXXXX or BN96-XXXXX.
  • Power Supply Boards: Typically start with BN44-XXXXX.
  • T-Con Boards: Most start with BN95-XXXXX or BN96-XXXXX.

Watch Out! Samsung boards also list board numbers like BN97-XXXXX, which should NOT be used to order parts. Always go with the part number instead.

TVpartsToday Tip:
If you're unsure whether you're looking at a board number or a part number, snap a picture and send it to us! We’ll confirm it for you, no pressure, no guesswork.


Vizio: More Variation, But We’ve Got You

Vizio part numbers are a bit trickier, but totally doable with the right know-how.

  • Main Boards: Look for a sticker with a partial number like GXICB02K039 and convert it to the full part number by adding 756T to the front.
  • Power Supply Boards: Start with ADTV (e.g., ADTVN5714AAX).
  • T-Con Boards: These vary widely in style and number format - so don’t hesitate to reach out if you’re not sure what you’re looking at.

TVpartsToday Tip:
 We decode Vizio numbers every day! Just shoot us an email or call us and we’ll walk you through it - no judgment, just help.


LG: Keep an Eye on the Prefixes

LG uses a few different prefixes, and it’s easy to get tripped up by board numbers vs part numbers.

  • Main Boards: Look for a sticker with EBTXXXXX - this is your part number. Sometimes LG switches it up and uses EBR or EBU as the prefix, but this is less common.
  • Power Supply Boards: Your target is EAYXXXXX.
  • T-Con Boards: Usually begin with 6871L-XXXXX, but the “6871L” won’t always be printed - you’ll need to add it manually before searching.

⚠️ Don't Use: Numbers starting with EAX - these are board numbers, not part numbers!

TVpartsToday Tip:
 Print looking fuzzy or hard to read? Snap a pic in good lighting and we’ll help you sort it out - fast.


Sony: The Trickiest of the Bunch

Sony likes to keep things interesting. Their main board part numbers often aren’t printed on the board at all!

  • Main Boards: Use the number on the white sticker to search on TVpartsToday.com - we’ve built a database to match those numbers to actual part numbers. It should look like: AXXXXXXXA, or perhaps A-XXXX-XXX-A.

  • Power Supply Boards: Much easier! Look for a 9-digit number (sometimes with dashes) printed on a white sticker. For example, 1-010-150-11.

  • T-Con Boards: Often follow formats like 6871L-XXXXX or LJ94-XXXXX, similar to other brands - but beware: Sony may use internal part numbers, too.

TVpartsToday Tip:
When in doubt, trust our part matching system. Just enter the number from your sticker into our search bar and let our database do the work for you.


Final Thoughts: Precision Matters in DIY Repairs

There are literally thousands of part number variations out there, and some can look deceptively similar across brands. That’s especially true for t-con boards! So always double-check your part number before you hit that “Buy” button.

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!

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.

15 comments

Hello everyone,

This is Mike S, the author of the TVpartsToday Blog articles. A previous user commented that “no one responds to these comments, so don’t bother”, though I took the comment down because it has some very… disparaging things to say about just about everybody in the world, much less this business.

We respond to these comments via EMAIL, the email address you leave when you comment. Otherwise this comment thread would get outrageously long and jumbled, as our system posts my response at the top of the page, not under the appropriate comment. So please check your email for msmith@tvpartstoday.com, as I have likely already responded to you via email.

If you do NOT have an email from me, then feel free to email me directly, or email our team at info@tvpartstoday.com. We provide TONS of assistance on these matters, free of charge, whether you purchase a part or not. Matching the exact part number ensures the board you buy actually works in your set. Thank you and have a great day!

Mike Smith,

looking for power supply. S/N HA210670C70007661. M21067-MT 70 inch . One/roki tv

ramiro cruz,

I need to replace the mother board to my Sony XBR-55×900F. There are orange numbers on the board that read 1-983-249-31. I ordered the same board with the same numbers. I replaced the board, but the backlight doesn’t work. There is another motherboard with 1-983-249-21 on it. Are they the same? I have tried everything possible to fix it but nothing has worked. Any suggestions on how to fix my problem?

Shelly L Schneider,

It’s crazy how many variances there are of boards that go with the same model tvs!!

I’ve been looking for the power board for a 50" Onn Roku TV model#100012585.

There are so many different number & letter codes on the board! I thought I finally figured out which one to use. It’s TV5006-ZC02-02.

BUT after looking at a circuit diagram with that number, I noticed multiple components shown in the diagram aren’t on my board. Some don’t even have places on the board(if that makes sense).

This is crazy!

If all of the connector pinouts match between boards, why does it have to be the EXACT match?

Heather Hodge,

Upstairs bathroom leaked. On downstairs tv. It Samsung UN65KU6290f kinda powers on, to a grey screen, black, grey, black…. I’d like to repair it out of curiosity and self torment. Would replacing main board work, or is it best for skeet shooting?

Dreary Abyss,

Leave a comment

Please note: comments must be approved before they are published.