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GuuYebe
LB50091 LED Backlight Strips for Insignia & Sharp 50-Inch TVs (8)
$34.82
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Categories: Best Seller, LED Backlight Replacement Strips
Fitment Support Before Ordering
180-Day Warranty
- Description
- Reviews
LB50091 LED Backlight Strips for Insignia and Sharp 50-Inch TVs
GuuYebe TV LED backlight replacement
LB50091 Left and Right LED Backlight Set
This GuuYebe LB50091 replacement LED backlight set is listed for select 50-inch Insignia and Sharp LED/LCD TVs, including Insignia NS-50DF710NA19 and Sharp LC-50LB601U. The package contains eight strips: four left (L) and four right (R). Compare the original part numbers, L/R strip layout, length, connectors, and mounting points before ordering.
Product Information
- Listed length: 958 mm; check the complete left/right arrangement in your TV
- LED count: 8 LEDs (R + L), as stated in the supplied product information
- Individual LED voltage: 3 V per LED (as listed)
- Package includes: 8 LED backlight strips (4 × left + 4 × right)
Compatible Insignia and Sharp 50-Inch TV Models
Check Your TV Model and Production Revision
The supplied compatibility file lists three full TV models across two brands. Use the complete model number from your TV label and check any listed revision. A matching TV model or revision alone is not a substitute for matching the installed backlight assembly.
| TV model | Listed version(s) |
|---|---|
| NS-50DF710NA19 | REV A, REV B |
| NS-50DF711SE21 | Not specified in supplied list |
| LC-50LB601U | REV A-PR |
Important fitment check: Match the original LB50091 printing and left/right part numbers, strip profile, LED placement, connectors, and mounting positions. Insignia NS-50DF710NA19 is listed for REV A and REV B; Sharp LC-50LB601U is listed for REV A-PR. No version was specified for Insignia NS-50DF711SE21. An unspecified version does not mean every revision is confirmed.
Complete Known-Models List — 3 TV Models
Expand the brand group to review the full supplied model list and version information.
Insignia models 2 models
| TV model | Listed version(s) |
|---|---|
| NS-50DF710NA19 | REV A, REV B |
| NS-50DF711SE21 | Not specified in supplied list |
Sharp models 1 models
| TV model | Listed version(s) |
|---|---|
| LC-50LB601U | REV A-PR |
Fitment Support Before Ordering
If you are not sure whether LB50091 is right for your TV, send us the full TV model, production revision when available, and clear photos of the original left/right LED strips, printed markings, and connectors. We can help compare these details before ordering.
Email: support@guuyebe.com
Product Parameters and Part Number Identification
| Primary Part Number | LB50091 |
|---|---|
| Part Type | LED backlight strip set |
| Part Usage | LED/LCD TV backlight assembly |
| Listed Length | 958 mm — confirm against your original L/R assembly |
| LED Count | 8 LEDs (R + L), as stated in the supplied listing; confirm each segment |
| Individual LED Voltage | 3 V per LED (as listed) |
| Package Contents | 8 strips: 4 left (L) + 4 right (R) |
| Panel References | TPT500U1-QVN03.U TPT500J1-HVN07.U |
|---|---|
| Visible Strip / Board Numbers | LB50091 V0_00 LB50091 V1_00 LB-PM3030-GJBBY504X8ABL2-L-T LB-PM3030-GJBBY504X8ABL2-R-T |
| Other Part Reference from Product Illustration | LB-PM3030-GJBBY504X8ABL2 50D3503V2W3C1B3 |
| Warranty | 180-Day Warranty |
Before ordering: The 958 mm dimension and eight-LED R/L count are reproduced from the product listing; it does not break these measurements down by individual L and R segments. Do not assume that another strip with a similar LB50091 code is interchangeable without comparing the installed assembly. Check the physical parts before ordering.
LB50091 LED Backlight Strips Unboxing Video
Watch the supplied GuuYebe LB50091 product video to see the replacement backlight set. Compare the eight included strips (4 L + 4 R), visible markings, connectors, and overall layout with your original TV parts before ordering.
Product video is a visual reference only. TV model and production revision still need to be checked against the installed strips.
LED Backlight Strip Details
LED Beads and Optical Lenses
The supplied listing specifies 3 V for each LED. Match lens placement, LED spacing, and the complete L/R assembly with the originals rather than relying on TV size alone.
Connector Interface
Check connector size, contact arrangement, and orientation. A plug that looks similar is not enough to establish electrical and mechanical compatibility.
Backing and Mounting
The supplied listing describes an aluminum backing for mounting and heat transfer. Compare strip shape and mounting-hole locations, and handle the TV panel carefully during repair.
Insignia or Sharp TV Has Sound but No Picture? Check the Backlight
If the TV plays sound but the screen stays dark, a backlight problem is one possible cause. With the TV powered on and the screen intact, shine a flashlight at an angle onto the display. A faint image can suggest that a picture is being generated but is not illuminated. This test does not prove that the LED strips have failed; the LED driver or other circuits 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
General TV backlight replacement walkthrough retained from the GuuYebe template. This is not an LB50091, Insignia NS-50DF710NA19, or Sharp LC-50LB601U model-specific installation video. Disconnect the TV from power before disassembly; display glass is fragile and internal electrical components can be hazardous.
