FEL-3237UW A0807 J3494V-0 RoHS board marking meaning

User question

FEL-3237UW

A0807

J3494V-0

RoHS

Artificial Intelligence Response

Direct answer to the question

Those markings are not all the same kind of identifier.

• FEL-3237UW: likely an OEM board/assembly marking printed on the PCB or board label. In the publicly indexed Daewoo SL-150T/150P service manual, that exact code does not appear, so it is probably not the main service-manual chassis number. For that chassis, the documented power/inverter board references are IPB-6012M01 and IPB-6015NV02. (manualslib.com)
• A0807: most likely a date/lot code. I would treat it as manufacturing traceability, not as the primary spare-part number.
• J3494V-0: the important part is 94V-0, which is a UL flammability rating for the PCB material, not the TV model or board model. UL describes V-0 as a vertical-burn classification with strict burn-time and no flaming-drip ignition criteria. (ul.com)
• RoHS: indicates the board was manufactured to comply with Restriction of Hazardous Substances rules for electronics. The European Commission describes RoHS as restricting hazardous substances in electrical/electronic equipment. (environment.ec.europa.eu)

Detailed problem analysis

From an electronics-service perspective, the key point is this:

1. Do not use 94V-0 as a search key for parts.
   That marking appears on countless PCBs because it refers to the laminate/material safety class, not the functional board identity. UL’s own description of UL 94 V ratings confirms that V-0/V-1/V-2 are material flammability classifications, not product model numbers. (ul.com)

2. RoHS is also not a part number.
   It only tells you the assembly meets hazardous-substance restrictions; it does not identify schematic compatibility, connector pinout, or firmware version. (environment.ec.europa.eu)

3. FEL-3237UW is the only string that looks like a true board identifier.
   However, I could not corroborate it in the publicly indexed SL-150T/150P service documentation. That manual identifies the chassis as SL-150T/150P and lists the relevant power/inverter schematic identifiers as IPB-6012M01 and IPB-6015NV02 instead. That is why I would not assume FEL-3237UW is the official Daewoo service part code without seeing the full board label or TV rear sticker. (manualslib.com)

4. A0807 is probably traceability information.
   On consumer TV boards, short alphanumeric strings like this are commonly batch/date codes. I would treat it as a secondary clue only. This is an engineering inference; I do not see that exact code decoded in the referenced manual.

If your goal is repair or replacement-board matching, the practical search priority should be:

Priority	What to search by	Why
1	Exact TV model from rear label	Best match for chassis and panel variant
2	White barcode sticker / board sticker number	Usually the true spare-part identifier
3	Chassis number, e.g. SL-150T/150P	Links to service manual and board family (manualslib.com)
4	Power-board identifiers such as IPB-6012M01 / IPB-6015NV02	These appear in the service documentation for that chassis. (manualslib.com)
5	PCB print like FEL-3237UW	Useful only if nothing better is available
6	94V-0 / RoHS	Not useful for replacement matching

The offline sample that treated J3494V-0 as a likely board number is almost certainly incorrect. The 94V-0 portion is a standard PCB safety/material marking, and that is the part that matters technically. (ul.com)

Current information and trends

• For the Daewoo DLP-22W4 / DLT-22W4 family, the public service literature still identifies the chassis as SL-150T/150P and references separate power and inverter schematics rather than a “FEL-3237UW” service designation. (manualslib.com)
• RoHS remains a live compliance topic for electronics manufacturing; the European Commission describes it as restricting hazardous substances in EEE, and ECHA notes that an amended RoHS framework entered into force on January 1, 2026. (environment.ec.europa.eu)

Supporting explanations and details

Think of the markings this way:

• Model/chassis number = identifies the product family.
• Board part number = identifies the replaceable module.
• Lot/date code = identifies when/where it was made.
• Safety/compliance marks = indicate regulatory/material compliance.

So, in your list:

• FEL-3237UW = probably board-related
• A0807 = probably manufacturing-related
• 94V-0 = definitely material/safety-related (ul.com)
• RoHS = definitely compliance-related (environment.ec.europa.eu)

Ethical and legal aspects

• If you are replacing a power or inverter board, use a board with equivalent safety approvals, insulation spacing, and connector pinout. The presence of UL 94 V-0 and RoHS markings relates to safety/compliance, but it does not guarantee interchangeability. (ul.com)
• TV power boards contain hazardous mains voltages. If you are troubleshooting live, use proper isolation and discharge procedures.

Practical guidelines

If you want an exact identification, send:

1. A photo of the whole board.
2. The white barcode sticker on the board, if present.
3. The TV rear label with full model number.
4. A photo of the connector area and any codes near the plugs.

If this is from a Daewoo DLP-22W4 / DLT-22W4, then search first for:

• SL-150T/150P
• IPB-6012M01
• IPB-6015NV02 (manualslib.com)

Do not search by:

• 94V-0
• RoHS

Those will produce many irrelevant results. (ul.com)

Possible disclaimers or additional notes

• I did not find a reliable public cross-reference that proves FEL-3237UW is the official service part number for the Daewoo SL-150T/150P chassis.
• A0807 is an informed inference as a lot/date code; I cannot verify its exact encoding from the indexed sources I checked.
• If your board came from a different TV brand/OEM, the same markings may map differently.

Suggestions for further research

For precise board matching, the next best evidence would be:

• the full board sticker number,
• the exact connector pin legend,
• the panel model,
• and the TV’s complete rear-label model/version.

With those, I can usually determine whether the board is:

• a main board,
• a power/inverter board,
• or just a raw PCB family print.

Brief summary

Most likely meaning of your markings:

• FEL-3237UW = probable board/OEM identifier
• A0807 = probable date or lot code
• J3494V-0 = effectively 94V-0, a PCB flammability rating, not a model number (ul.com)
• RoHS = hazardous-substances compliance mark (environment.ec.europa.eu)

If you want, send a clear photo of the board and I can tell you exactly which board it is and what number you should use for replacement searching.

Disclaimer: The responses provided by artificial intelligence (language model) may be inaccurate and misleading. Elektroda is not responsible for the accuracy, reliability, or completeness of the presented information. All responses should be verified by the user.