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GuuYebe
TCL GIC75LB08 LED Backlight Strips for 75S421 75S423 75S425 (12)
$57.68
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Categories: LED Backlight Replacement Strips
Fitment Support Before Ordering
180-Day Warranty
- Description
- Reviews
GIC75LB08 LED Backlight Strips for TCL 75S421, 75S423 & 75S425
GuuYebe TV LED backlight replacement
GIC75LB08 Backlight Set for Select TCL 75-Inch TVs
This GuuYebe replacement LED backlight set is listed for select TCL 75-inch LED/LCD televisions, including the 75S421, 75S423, and 75S425 families. Its primary replacement reference is GIC75LB08, with 3030F2.1D V1.1 and 4C-LB7507-ZM031 appearing in the supplied part-number information. Check your original strip markings, LED layout, length, connectors, and mounting points before ordering.
Product Information
- Strip length: 850 mm (33.46 in) per strip, as listed
- LED count: 7 LED beads per strip
- Individual LED voltage: 6 V per bead (as listed)
- Package includes: 1 set of 12 LED backlight strips
Compatible TCL 75-Inch TV Models
Common TCL 75S421, 75S423 & 75S425 References
Use the full model number on your television’s rear label to find the matching row below. The supplied fitment list includes the three base model families and their listed model-suffix variations. The source marks the three base models “ALL VERSIONS”; still confirm that the physical GIC75LB08 strips in your TV match this product.
| TCL TV model | Listed version(s) |
|---|---|
| 75S421 | All versions (listed) |
| 75S423 | All versions (listed) |
| 75S425 | All versions (listed) |
Important fitment check: TCL TVs with similar model names can contain different backlight assemblies. Compare GIC75LB08 3030F2.1D V1.1, 4C-LB7507-ZM031, the 850 mm strip length, seven-LED pattern, connector, and mounting-hole layout against the original. “All versions” is retained as stated in the provided fitment source; it is not a substitute for matching the installed parts.
Complete Known-Models List — 9 TCL Model Identifiers
All nine identifiers from the supplied compatibility file are shown below, including the source’s version annotations. “Not specified” indicates the source did not provide a separate version entry for that model; it does not imply that every variation is compatible.
TCL 75S421 series 1 model
| TCL TV model | Listed version(s) |
|---|---|
| 75S421 | All versions (listed) |
TCL 75S423 series 2 models
| TCL TV model | Listed version(s) |
|---|---|
| 75S423 | All versions (listed) |
| 75S423LFAA | Not specified |
TCL 75S425 series 6 models
| TCL TV model | Listed version(s) |
|---|---|
| 75S425 | All versions (listed) |
| 75S425LACA | Not specified |
| 75S425LBAA | Not specified |
| 75S425LBCA | Not specified |
| 75S425LGBA | Not specified |
| 75S425LIAA | Not specified |
Fitment Support Before Ordering
Not sure whether your TCL 75S425, 75S423, or 75S421 uses the GIC75LB08 backlight set? Send us your TV’s full model and version, plus clear photos of the original strips and printed codes at support@guuyebe.com. We can help compare them with this listing before you order.
Product Parameters and Part Number Identification
| Primary Replacement Reference | GIC75LB08 |
|---|---|
| Part Type | LED backlight strips |
| Part Usage | LED/LCD TV backlight |
| Strip Length | 850 mm (33.46 in) per strip, as listed |
| LED Beads | 7 per strip |
| Individual LED Voltage | 6 V per bead (as listed) |
| Package Contents | 12 LED backlight strips (1 set) |
| Visible / Board Reference Codes | GIC75LB08 3030F2.1D V1.1 20181016 E466169 4C-LB7507-ZM031 |
|---|---|
| Panel References as Listed | LVU750NDBL MD9W00 V1 08-75V6000-LPN001A |
| Warranty | 180-Day Warranty |
Before ordering: These printed markings, panel references, and specifications are taken from the supplied product information. A shared model number or partial code alone cannot establish interchangeability. Confirm your original strips’ dimensions, seven-LED spacing, connector orientation, and mounting points.
GIC75LB08 LED Backlight Strips Unboxing Video
See the GuuYebe GIC75LB08 replacement backlight set in the product video. Use the video together with the photos above to check the included strip appearance, printed references, and connector positions.
The product video is provided as a visual reference. Confirm part compatibility against the actual strips installed in your TV.
LED Backlight Strip Details
LED Beads and Optical Lenses
The supplied listing specifies seven LED beads per strip, with each bead listed at 6 V. Compare the lens positions and spacing with your TV’s original GIC75LB08 assembly.
Connector Interface
Check connector shape, polarity, contact arrangement, and orientation before fitting the new strips. Do not assume a visually similar plug is electrically compatible.
Backing and Mounting
The supplied listing describes an aluminum backing for mounting and heat transfer. Compare the 850 mm length and mounting-hole locations with the original strips to help avoid fitment problems.
TCL TV Has Sound but No Picture? Check the Backlight
If your TCL TV has sound but the screen stays dark, the LED backlight is one possible cause. With the TV turned on, shine a flashlight onto the display at an angle. A faint image can indicate that an LCD picture is present without enough backlight illumination, but it does not by itself prove the LED strips are defective; the backlight driver or other circuitry may also require testing.
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 retained from the supplied GuuYebe template. It is not a model-specific TCL 75S421, 75S423, or 75S425 installation video. TV disassembly involves fragile LCD glass and electrical hazards; unplug the television and follow appropriate repair procedures.
