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Categories: Best Seller, LED Backlight Replacement Strips
Fitment Support Before Ordering
180-Day Warranty
- Description
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TCL 55S421, 55S423 & 55S425 LED Backlight Strips Replacement
GuuYebe TV LED backlight replacement
4-Piece A+B LED Backlight Set for Select TCL 55-Inch TVs
Replacement TV LED backlight strip set for select TCL 55S421, 55S423 and 55S425 models using the listed SJ.SB.D5500801-3030H-family markings. The package contains four physical strip pieces. Confirm the A+B arrangement, original printed part numbers, connectors and mounting layout before ordering.
Product Information
- Length: 1,013 mm for the listed A+B assembly (not stated as the length of each individual piece)
- LED count: 15 LEDs for the listed A+B strip configuration
- Individual LED voltage: 6 V per LED, as supplied
- Package includes: 1 set of 4 LED strip pieces
The original listing gives length and LED count for “A+B.” It does not supply separate dimensions or LED counts for each individual A or B piece.
Compatible TCL 55-Inch TV Models
Common TCL Model References
The supplied fitment file lists TCL 55S421, 55S423 and 55S425 families, including full suffixes such as 55S421LBAA and 55S425TFBA. Find the complete model identifier on your TV label. The file does not specify production versions, and a matching model number alone does not guarantee that the installed LED assembly is identical.
| TCL TV model | Listed version(s) |
|---|---|
| 55S421 | Not specified in supplied list |
| 55S421LBAA | Not specified in supplied list |
| 55S423 | Not specified in supplied list |
| 55S423TCAA | Not specified in supplied list |
| 55S425 | Not specified in supplied list |
| 55S425LFBA | Not specified in supplied list |
| 55S425TFBA | Not specified in supplied list |
Important fitment check: Compare your original A+B strip layout, printed identifiers, assembled 1,013 mm length, 15-LED configuration, 6 V LED specification, connectors and mounting-hole positions. Some model families can have different assemblies across production runs; verify your TV version and original parts before ordering.
Complete Known-Models List — 14 TCL TV Model Identifiers
All 14 identifiers below come from the supplied TCL compatibility file. Grouping by model family is for readability only. “Not specified” means the source did not provide a separate version code; it does not mean every production version is supported.
TCL 55S421 family 3 model identifiers
| TCL TV model | Listed version(s) |
|---|---|
| 55S421 | Not specified |
| 55S421LBAA | Not specified |
| 55S421ZCAA | Not specified |
TCL 55S423 family 3 model identifiers
| TCL TV model | Listed version(s) |
|---|---|
| 55S423 | Not specified |
| 55S423LEAA | Not specified |
| 55S423TCAA | Not specified |
TCL 55S425 family 8 model identifiers
| TCL TV model | Listed version(s) |
|---|---|
| 55S425 | Not specified |
| 55S425LACA | Not specified |
| 55S425LDAA | Not specified |
| 55S425LFBA | Not specified |
| 55S425LHBA | Not specified |
| 55S425MABA | Not specified |
| 55S425TFAA | Not specified |
| 55S425TFBA | Not specified |
Fitment Support Before Ordering
If you are unsure which TCL backlight strips your TV uses, email the complete TV model number, the rear-label version if shown, and clear photos of the original strip codes and connectors. We can help you compare the references before purchasing.
Email: support@guuyebe.com
Product Parameters and Part Number Identification
| Primary listed part number | SJ.SB.D5500801-3030H |
|---|---|
| Detailed part reference | SJ.SB.D5500801-3030HL-M-HF |
| Part type | LED backlight strips for LED/LCD TV |
| A+B assembly length | 1,013 mm (A+B, per supplied listing) |
| LED count | 15 for the stated A+B arrangement |
| Individual LED voltage | 6 V per LED (as listed) |
| Package contents | 4 LED strip pieces (1 set) |
| Substitute references listed | GIC55LB111 GIC55LB112 |
| Warranty | 180-Day Warranty |
| Panel references listed | LVU550NDEL SJ9W01 V3 08-556000-LPN004C |
|---|---|
| Board / strip markings from listing | SJ.SB.D5500801-3030HR-M-HF SJ.SB.D5500801-3030HL-M-HF 4C-LB5507-PF01J 4C-LB5508-PF01J 4C-LB5507-PF05J 4C-LB5508-PF05J KW-55D-L08-20190725V3 KW-55D-L07-20190725V3 4C-LB5508-HR 4C-LB5507-HR02J 4C-LB5507-HR03J 55HR330M07B2 55HR330M08A2 |
| Additional markings from supplied parameters | 1.14.HBMD550002 1.14.HBMD550003 SJ.SB.D5500701-3030HR-M-HF 55HR330M08 V2 55HR330M07B2 V2 |
Verify printed markings: The Amazon-style product description lists SJ.SB.D5500801-3030HR-M-HF, while the separate product-parameters file also lists SJ.SB.D5500701-3030HR-M-HF. These are reproduced as separate source references—not a guarantee that the two right-hand strip numbers are interchangeable. Likewise, the supplied parameters include one incomplete reference (“1.14.HBMD55000”), which is omitted from the identification table to avoid implying an exact part match.
TCL 55S421 / 55S423 / 55S425 Backlight Strips Unboxing Video
View the supplied GuuYebe product video to check the four-piece replacement set against your original TCL TV backlight assembly. Use the video together with the reference images and measurements above; visual similarity alone does not confirm compatibility.
The video uses the supplied 55S425 poster image and product MP4. Compare the physical A+B strip layout and visible markings before purchase.
LED Backlight Strip Details
LED Beads and Optical Lenses
The source lists 15 LED beads for the A+B assembly and 6 V per LED. Compare the complete A+B lens layout and spacing; the source does not specify how many LEDs are on each individual segment.
Connector Interface
Inspect the original electrical connector, contact orientation and A/B arrangement. Match the physical strip markings and connector style before connecting the replacement; a similar-looking part number alone is not enough.
Backing and Mounting
The supplied product description calls out aluminum backing for fastening and heat transfer. Confirm the original 1,013 mm A+B layout and mounting positions to avoid stressing the LED panel during installation.
TCL TV Has Sound but No Picture? Check the Backlight
If your TCL TV has sound but a black screen, failed LED backlighting is one possible cause. With the TV powered on, shine a flashlight at an angle toward the screen. A faint image may suggest that the picture is being produced without enough backlight illumination. This is only a preliminary check; the LED driver, power supply or other components may also need diagnosis.
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 demonstration is retained from the GuuYebe template. It is not a model-specific TCL 55S421, 55S423 or 55S425 installation video. Disassembly exposes fragile glass and electrical hazards; unplug the TV and use appropriate repair procedures.
