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Categories: LED Backlight Replacement Strips
Fitment Support Before Ordering
180-Day Warranty
- Description
- Reviews
LC420DUE-SFR1 LED Backlight Strips for Select 42-Inch TVs and Displays
GuuYebe TV LED backlight replacement
LC420DUE-SFR1 10-Piece LED Backlight Strip Set
This GuuYebe LED backlight replacement set is listed for select 42-inch televisions, commercial displays and compatible arcade equipment using LC420DUE-SFR1-related backlight assemblies. The supplied product information lists a 10-strip set arranged as 3×L1 + 3×R1 + 2×L2 + 2×R2. Before ordering, compare the original printed strip numbers, panel reference, L/R strip arrangement, connector, mounting positions, model and version with the original parts.
Product Information
- Combined L+R length: 820 mm (as listed)
- LED count: 10 LED beads per strip
- Individual LED voltage: 3 V per bead (as listed)
- Package includes: 10 LED strips — 3×L1 + 3×R1 + 2×L2 + 2×R2
- Installation feature: Double-sided tape is listed as pre-applied
Compatible TV, Display and Arcade Equipment Models
Common Compatibility References
The supplied fitment data includes LG 42LN5300-UB, 42LN5400-UA, 42LN5700-UH and 42LA6200-UA; Vizio E420-A0, E420D-A0 and E420I-A0; Panasonic TX-L42B6 series; Sanyo DP42D23; plus selected commercial displays and arcade equipment. Model name alone does not confirm the installed backlight assembly.
| Model | Listed version(s) |
|---|---|
| LG 42LN5300-UB | BUSQLJR, BUSYLJR |
| LG 42LN5400-UA | BUSYLJR, BUSYLMR, BUSYLHR |
| LG 42LN5700-UH | BUSYLJR |
| Vizio E420-A0 | LATKNREP, LAQKNREP, LATKNRGP |
| Sanyo DP42D23 | P42D23-00 |
Important fitment check: The same television, display, or arcade equipment model may use different LED backlight assemblies in different production versions. Compare the original strip markings, L1/R1/L2/R2 arrangement, panel number, connector, mounting points and listed version where available. “Not specified” means the supplied compatibility source did not provide a version; it does not mean every version is confirmed compatible.
Complete Supplied Compatibility List — 124 Model Records
The complete source-provided model list is grouped below by brand or equipment manufacturer. Version information is retained wherever supplied.
Arcade Compatible Models 1 record
| Model / Equipment | Listed version(s) |
|---|---|
| Pink Panther | Not specified |
GlobalVR Compatible Models 1 record
| Model / Equipment | Listed version(s) |
|---|---|
| Aliens Extermination 42 Inch Fixed Gun | Some Versions |
LG Compatible Models 90 records
| LG Model | Listed version(s) |
|---|---|
| 42LA613S | Not specified |
| 42LA613S-ZA | Not specified |
| 42LA613S-ZB | Not specified |
| 42LA613V-ZA | Not specified |
| 42LA613V-ZB | Not specified |
| 42LA613V-ZF | Not specified |
| 42LA613V-ZG | Not specified |
| 42LA615S-ZA | Not specified |
| 42LA615S-ZB | Not specified |
| 42LA615V | Not specified |
| 42LA615V-ZA | Not specified |
| 42LA615V-ZB | Not specified |
| 42LA615V-ZE | Not specified |
| 42LA615V-ZF | Not specified |
| 42LA616V-ZG | Not specified |
| 42LA620S | Not specified |
| 42LA620S-ZA | Not specified |
| 42LA620V | Not specified |
| 42LA620V-ZA | Not specified |
| 42LA621S-ZD | Not specified |
| 42LA621V-ZD | Not specified |
| 42LA6130-ZB | Not specified |
| 42LA6134-ZB | Not specified |
| 42LA6136-ZB | Not specified |
| 42LA6150-ZB | Not specified |
| 42LA6154-ZB | Not specified |
| 42LA6156-ZB | Not specified |
| 42LA6200-UA | AUSYLJR, BUSYLJR, AUSYLJM, BUSYLWM |
| 42LA6205 | Not specified |
| 42LA6208-ZA | Not specified |
| 42LA6218-ZD | Not specified |
| 42LN540B-ZA | Not specified |
| 42LN540R-ZA | Not specified |
| 42LN540S-ZA | Not specified |
| 42LN540U-ZA | Not specified |
| 42LN540U-ZB | Not specified |
| 42LN540V-ZA | Not specified |
| 42LN541C-UA | BUSYLJR, AUSYLJR |
| 42LN541U-ZB | Not specified |
| 42LN541V-ZC | Not specified |
| 42LN542V-ZD | Not specified |
| 42LN549E-UA | BUSYLJR |
| 42LN570R-ZA | Not specified |
| 42LN570S | Not specified |
| 42LN570S-ZA | Not specified |
| 42LN570S-ZE | Not specified |
| 42LN570U-ZA | Not specified |
| 42LN570V-ZA | Not specified |
| 42LN570V-ZE | Not specified |
| 42LN575R-ZE | Not specified |
| 42LN575S | Not specified |
| 42LN575S-ZE | Not specified |
| 42LN575U-ZE | Not specified |
| 42LN575V | Not specified |
| 42LN575V-ZE | Not specified |
| 42LN577S-ZK | Not specified |
| 42LN577V-ZK | Not specified |
| 42LN578S-ZE | Not specified |
| 42LN578V | Not specified |
| 42LN578V-ZE | Not specified |
| 42LN610S-ZB | Not specified |
| 42LN610V-ZB | Not specified |
| 42LN613S | Not specified |
| 42LN613S-ZB | Not specified |
| 42LN613V | Not specified |
| 42LN613V-ZB | Not specified |
| 42LN5300-UB | BUSQLJR, BUSYLJR |
| 42LN5400-UA | BUSYLJR, BUSYLMR, BUSYLHR |
| 42LN5400-ZA | Not specified |
| 42LN5403-ZA | Not specified |
| 42LN5404-ZA | Not specified |
| 42LN5405-ZA | Not specified |
| 42LN5406-ZA | Not specified |
| 42LN5700-UH | BUSYLJR |
| 42LN5707-ZA | Not specified |
| 42LN5708-ZA | Not specified |
| 42LN5708-ZE | Not specified |
| 42LN5710-TE | Not specified |
| 42LN5757-ZE | Not specified |
| 42LN5758-ZE | Not specified |
| 42LN5778-ZK | Not specified |
| 42LN5788-ZE | Not specified |
| 42LN6108-ZB | Not specified |
| 42LN6138-ZB | Not specified |
| 42LP645H | Not specified |
| 42WL10MS | Not specified |
| 42WL10MS-BL | Not specified |
| 42WL30MS | Not specified |
| 42WL30MS-D | Not specified |
| 42WT30MS-BL | Not specified |
Makvision Compatible Models 3 records
| Model | Listed version(s) |
|---|---|
| MT42W-267C3 | Not specified |
| MT42W-861A3 | Not specified |
| MT42W-2673 | Not specified |
Panasonic Compatible Models 4 records
| Model | Listed version(s) |
|---|---|
| TX-L42B6B | Not specified |
| TX-L42B6E | Not specified |
| TX-L42BL6B | Not specified |
| TX-L42BL6E | Not specified |
Raw Thrills Compatible Models 18 records
| Arcade Equipment | Listed version(s) |
|---|---|
| Aliens Armageddon 42 Inch Fixed Gun | Some Versions |
| Barrel of Monkeys | Some Versions |
| Batman Arcade | Some Versions |
| Big Buck Pro Open Season Deluxe | Some Versions |
| Big Buck Safari Deluxe | Some Versions |
| Big Buck World Deluxe | Some Versions |
| Dirty Drivin | Some Versions |
| Disney Pixar Cars | Some Versions |
| Fast and Furious | Some Versions |
| H2Overdrive | Some Versions |
| Injustice Arcade | Some Versions |
| Jurassic Park Motion Bench CEC | Some Versions |
| Monopoly Arcade | Some Versions |
| MotoGP | Some Versions |
| Superbikes 2 | Some Versions |
| Terminator Salvation Deluxe | Some Versions |
| Terminator Salvation Fixed Gun | Some Versions |
| Winter X-Games Snocross | Some Versions |
Sanyo Compatible Models 1 record
| Model | Listed version(s) |
|---|---|
| DP42D23 | P42D23-00 |
Vizio Compatible Models 3 records
| Model | Listed version(s) |
|---|---|
| E420-A0 | LATKNREP, LAQKNREP, LATKNRGP |
| E420D-A0 | LAUKNRAN, LAUKNREP, LATKNRDP, LATKNRGP, LAQKNRAP, LAQKNRDP |
| E420I-A0 | LAQKNRFP, LATKNRFP |
Wei-ya Compatible Models 3 records
| Model | Listed version(s) |
|---|---|
| MT42W-267C3 | Not specified |
| MT42W-861A3 | Not specified |
| MT42W-2673 | Not specified |
Fitment Support Before Ordering
If you are unsure whether this set matches your TV, display, or arcade equipment, send the complete model and version plus clear photos of the original strip markings, connector, LED layout and mounting positions. We can help compare the supplied references before you order.
Email: support@guuyebe.com
Product Parameters and Part Number Identification
| Primary Part Reference | LC420DUE-SFR1 LED Strips |
|---|---|
| Manufacturer References | LG AGF78261601 LG AGF78435101 LG AGF78326501 |
| Part Type | LED light strip |
| Part Usage | LED/LCD television and display backlight |
| Combined L+R Length | 820 mm (as listed) |
| LED Beads | 10 per strip |
| Individual LED Voltage | 3 V per bead (as listed) |
| Package Contents | 10 strips: 3×L1 + 3×R1 + 2×L2 + 2×R2 |
| Panel References | LC420DUE-SFR1 LC420DUE-SFR2 LC420DUE-SFR3 LC420DUE-SFR4 LC420DUE-SFU1 LC420DUE-SFU2 LC420DUE-SFU3 LC420DUE-SFU4 LC420DUG-JFR |
|---|---|
| Key Visible Strip Numbers | 6637L-0025A 6916L-1214A 6916L-1215A 6916L-1216A 6916L-1217A 6916L-1519A 6916L-1520A 6916L-1521A 6916L-1522A 6916L-1385A / 6916L-1386A |
| Warranty | 180-Day Warranty |
Additional replacement-set references supplied:
6916L-1385A / 6916L-1386A / 6916L-1387A / 6916L-1388A
6916L-1338A / 6916L-1339A / 6916L-1340A / 6916L-1341A
6916L-1519A / 6916L-1520A / 6916L-1521A / 6916L-1522A
6916L-1412A / 6916L-1413A / 6916L-1414A / 6916L-1415A
6916L-1509A / 6916L-1510A / 6916L-1511A / 6916L-1512A
6916L-1317A / 6916L-1318A / 6916L-1319A / 6916L-1320A
These identifiers come from the supplied product reference data. They may represent complete strip sets, individual strip markings or shortened manufacturer references. Match the original physical layout and markings rather than assuming every reference is universally interchangeable.
LC420DUE-SFR1 LED Backlight Strips Product Video
Use the supplied product video as a visual reference for the strip set. Compare the printed identifiers, L/R arrangement, connectors, LED spacing and mounting positions with the original backlight parts before ordering or installation.
The product video is a visual reference and does not by itself confirm compatibility with every production version listed above.
LED Backlight Strip Details
LED Beads and Optical Lenses
The supplied listing specifies 10 LED beads per strip at 3 V per LED. Compare the LED count, lens spacing, strip shape and L/R configuration with the original assembly.
Connector and Strip Orientation
Check connector shape, contact arrangement, orientation and the L1/R1/L2/R2 strip positions before installation. Similar model numbers do not guarantee the same internal backlight set.
Mounting and Installation
The supplied product reference states that double-sided tape is pre-applied. Before installation, confirm strip length, mounting points and panel layout, then clean the mounting surface as appropriate for the repair.
TV Has Sound but No Picture? Check the Backlight
If a compatible TV has sound but the screen remains dark, failed LED backlights are one possible cause. Shining a flashlight at an angle across the powered screen may reveal a faint image, which can indicate that the LCD image is present but the backlight is not illuminating normally. This test does not prove the LED strips are faulty; the LED driver, power supply or other circuitry may also require 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 is a general GuuYebe LED backlight replacement walkthrough. It is not a model-specific LC420DUE-SFR1, LG 42LN5400, Vizio E420D-A0 or arcade cabinet disassembly guide. Display disassembly involves fragile panels and electrical hazards. Disconnect power and use appropriate repair procedures.
