Ships from US Warehouse Estimated Delivery in 5–7 Days
GuuYebe
TCL 4C-LB4321-HR LED Backlight Strips for 43S431 43S435 43S434 43S433
$32.86
In Stock
Pre-Order
Sold out
Categories: Best Seller, LED Backlight Replacement Strips
Fitment Support Before Ordering
180-Day Warranty
- Description
- Reviews
4C-LB4321-HR LED Backlight Strips for Select TCL 43-Inch TVs
GuuYebe TV LED backlight replacement
Replacement Strip Set for TCL 43S425, 43S431, 43S433, 43S434 and 43S435 References
This GuuYebe LED backlight replacement set is listed for select TCL 43-inch LED/LCD televisions using the 4C-LB4321-HR backlight reference. It contains two strips. Check your TV’s complete model and the markings on its original backlight assembly before purchasing: model-family names alone cannot confirm that the installed strips match.
Product Information
- Strip length: 812 mm per strip (as listed)
- LED count: 21 LED beads per strip (as listed)
- Package includes: 1 set of 2 LED backlight strips
- LED voltage: Not specified in the supplied product information; verify against the original assembly
Compatible TCL 43-Inch TV Model References
Common TCL Model References
The supplied compatibility list includes the following TCL 43S425 variants and 43S431, 43S433, 43S434, and 43S435 models. Check the full model identifier on the TV label and, when practical, inspect the actual LED strips inside the TV before ordering.
| TCL TV model | Listed version(s) |
|---|---|
| 43S425LAAA | Not specified in source |
| 43S425LDAA | Not specified in source |
| 43S425TDAA | Not specified in source |
| 43S431 | Not specified in source |
| 43S433 | Not specified in source |
| 43S434 | Not specified in source |
| 43S435 | Not specified in source |
Important fitment check: Compare the original strip’s printed code (4C-LB4321-HR, 4C-LB4321-HR03J, or related markings where applicable), its 812 mm length, 21-LED arrangement, connector, and mounting positions with the product images. The listed TV models are fitment references, not a guarantee that every production version uses the same LED strips.
Complete Known-Models List — 11 TCL Model Identifiers
The following TV model identifiers are transcribed from the supplied fitment file. Expand a group to view every entry. “Not specified in source” means the file did not supply a separate version code, not that all production versions have been verified.
TCL 43S425 variants 7 models
| TCL TV model | Listed version(s) |
|---|---|
| 43S425LAAA | Not specified in source |
| 43S425LABA | Not specified in source |
| 43S425LBAA | Not specified in source |
| 43S425LDAA | Not specified in source |
| 43S425TDAA | Not specified in source |
| 43s425vdaa | Not specified in source |
| 43S425VDBA | Not specified in source |
TCL 43S43 models 4 models
| TCL TV model | Listed version(s) |
|---|---|
| 43S431 | Not specified in source |
| 43S433 | Not specified in source |
| 43S434 | Not specified in source |
| 43S435 | Not specified in source |
Fitment Support Before Ordering
Need help checking 4C-LB4321-HR compatibility? Email your TV’s complete model number and clear photos of the original strip markings, connector, LED layout, and mounting holes so we can help compare the supplied product references.
Email: support@guuyebe.com
Product Parameters and Part Number Identification
| Primary Replacement Part Number | 4C-LB4321-HR |
|---|---|
| Part Type | LED backlight strips |
| Part Usage | LED/LCD television backlight |
| Strip Length | 812 mm per strip (as listed) |
| LED Count | 21 LED beads per strip (as listed) |
| Individual LED Voltage | Not specified in the supplied product files |
| Package Contents | 1 set: 2 LED backlight strips |
| Visible / Board Markings | 43HR330M21A0 V1 4C-LB4321-HR03J 43HR330M21A1 |
|---|---|
| Panel References as Listed | LVU430NDEL LVU430NDEL MS9W04 V1 LVU430NDEL MS9W13 V4 |
| Warranty | 180-Day Warranty |
Before ordering: 43HR330M21A0 V1, 4C-LB4321-HR03J, and 43HR330M21A1 are supplied as visible or board reference markings, while LVU430NDEL and its MS9W04 / MS9W13 variations are listed panel references. These codes are identification aids, not standalone proof of interchangeability. Check the original parts and physical layout.
4C-LB4321-HR LED Backlight Strips Unboxing Video
View the supplied product video to compare the GuuYebe 4C-LB4321-HR backlight set with the parts removed from your TCL television. Check the strip shape, printed references, LED arrangement, and connector before installing.
This product video helps with visual identification; it does not guarantee compatibility with every version of a listed TV model.
LED Backlight Strip Details
LED Beads and Optical Lenses
The supplied listing specifies 21 LEDs per strip. Compare the LED count, lens spacing, and original strip dimensions; the individual LED voltage was not provided in the source documents.
Connector Interface
Verify the plug shape, orientation, and contact arrangement against the original strips. A similar-looking connector alone does not confirm that two backlight assemblies are interchangeable.
Backing and Mounting
The supplied listing describes an aluminum strip backing for mounting and heat transfer. Check mounting-hole locations, overall length, and clearance against the original assembly before installation.
TCL TV Has Sound but No Picture? Check the Backlight
If your TCL TV plays sound but shows a dark screen, the LED backlight is one possible cause. With the TV on, shining a flashlight at an angle across the screen may reveal a faint image. A visible faint picture can suggest a backlight or its power circuitry needs diagnosis; it does not prove that the LED strips themselves have failed.
TV Has Sound But No Picture – Diagnosis Guide
How to Replace TV LED Backlight Strips – General Replacement Guide
TV LED Backlight Strip Replacement Process Video
This general replacement walkthrough is carried over from the supplied GuuYebe template. It is not a TCL 43S425-specific or 4C-LB4321-HR-specific installation video. Disconnect electrical power before disassembly and handle the fragile LCD panel and internal electronics carefully.
