{"product_id":"sharp-insignia-lb50091-led-backlight-strips","title":"LB50091 LED Backlight Strips for Insignia \u0026 Sharp 50-Inch TVs (8)","description":"\u003cstyle\u003e\n\n\n.gy-desc-lb50091{max-width:1100px;margin:0 auto;color:#24303a;font:inherit;line-height:1.6}\n.gy-desc-lb50091 *{box-sizing:border-box}\n.gy-desc-lb50091 h2{font-size:1.58em;line-height:1.28;margin:28px 0 13px;color:#172733}\n.gy-desc-lb50091 h3{font-size:1.25em;line-height:1.35;margin:16px 0 11px;color:#172733}\n.gy-desc-lb50091 h4{font-size:1.06em;line-height:1.4;margin:14px 0 9px;color:#24303a}\n.gy-desc-lb50091 p{margin:9px 0 13px}\n.gy-desc-lb50091 ul{padding-left:23px;margin:8px 0 15px}\n.gy-desc-lb50091 li{margin-bottom:6px}\n.gy-desc-lb50091 img{display:block;width:auto;max-width:100%;height:auto;margin:0 auto}\n.gy-desc-lb50091 a{color:#a42823;text-decoration:underline;text-underline-offset:2px}\n.gy-desc-lb50091 .gy-grid{display:grid;grid-template-columns:1fr 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auto}\n.gy-desc-lb50091 video{display:block;width:100%;max-width:970px;height:auto;margin:15px auto;border-radius:6px}\n.gy-desc-lb50091 .gy-quick-models{background:#f3f6f8;padding:12px 15px;border-radius:5px}\n@media(max-width:720px){\n.gy-desc-lb50091 .gy-grid,.gy-desc-lb50091 .gy-cards{grid-template-columns:1fr;gap:11px}\n.gy-desc-lb50091 h2{font-size:1.38em}\n.gy-desc-lb50091 h3{font-size:1.15em}\n.gy-desc-lb50091 .gy-card{border-bottom:1px solid #e3e8e9}\n.gy-desc-lb50091 .gy-data th,.gy-desc-lb50091 .gy-data td{padding:9px 7px}\n.gy-desc-lb50091 .gy-model-group summary{padding:12px 10px}\n.gy-desc-lb50091 .gy-count{float:none;display:inline-block;margin-left:7px}\n}\n.gy-desc-lb50091 .gy-visual img{max-height:420px;object-fit:contain}\n.gy-desc-lb50091 .gy-smallprint{font-size:.88em;color:#586772}\n.gy-desc-lb50091 .gy-unboxing{max-width:970px;margin:20px auto 26px;padding:16px 0;border-top:1px solid #e1e6e9;border-bottom:1px solid #e1e6e9}\n.gy-desc-lb50091 .gy-unboxing h3{margin:5px 0 11px}\n.gy-desc-lb50091 .gy-unboxing video{margin:13px auto}\n\n.gy-desc-lb50091 .gy-photo-label{font-size:.9em;text-align:center;color:#586772;margin:8px auto 0}\n.gy-desc-lb50091 .gy-intro-video{display:block;max-width:970px;margin:0 auto}\n.gy-desc-lb50091 .gy-models td:first-child{font-weight:600}\n.gy-desc-lb50091 .gy-data td{overflow-wrap:anywhere}\n.gy-desc-lb50091 .gy-video-fallback{font-size:.9em}\n.gy-desc-lb50091 .gy-unboxing video{background:#f2f5f6;aspect-ratio:16\/9;object-fit:contain}\n\n\n.gy-desc-lb50091 .gy-model-group[open] summary{border-bottom:1px solid #dae3e6}\n.gy-desc-lb50091 .gy-photo-label{line-height:1.55}\n.gy-desc-lb50091 .gy-model-group .gy-scroll{padding:5px 12px 13px}\n.gy-desc-lb50091 figure{margin-left:auto;margin-right:auto}\n\n\u003c\/style\u003e\n\u003cdiv class=\"gy-desc-lb50091\" lang=\"en-US\"\u003e\n\u003csection class=\"gy-top\"\u003e\n\u003ch2\u003eLB50091 LED Backlight Strips for Insignia and Sharp 50-Inch TVs\u003c\/h2\u003e\n\u003cdiv class=\"gy-grid\"\u003e\n\u003cdiv class=\"gy-visual\"\u003e\u003cimg src=\"https:\/\/cdn.shopify.com\/s\/files\/1\/0778\/4353\/0021\/files\/LB50091_d791274c-7d4b-442d-a573-bda9b0e2e373.jpg?v=1789893098\" alt=\"GuuYebe LB50091 replacement LED backlight strip set for select Insignia and Sharp 50-inch TVs, 8 strips\" loading=\"lazy\" decoding=\"async\"\u003e\u003c\/div\u003e\n\u003cdiv\u003e\n\u003cp class=\"gy-kicker\"\u003eGuuYebe TV LED backlight replacement\u003c\/p\u003e\n\u003ch3\u003eLB50091 Left and Right LED Backlight Set\u003c\/h3\u003e\n\u003cp\u003eThis 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.\u003c\/p\u003e\n\u003ch4\u003eProduct Information\u003c\/h4\u003e\n\u003cul\u003e\n\u003cli\u003e\n\u003cstrong\u003eListed length:\u003c\/strong\u003e 958 mm; check the complete left\/right arrangement in your TV\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eLED count:\u003c\/strong\u003e 8 LEDs (R + L), as stated in the supplied product information\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eIndividual LED voltage:\u003c\/strong\u003e 3 V per LED (as listed)\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003ePackage includes:\u003c\/strong\u003e 8 LED backlight strips (4 × left + 4 × right)\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003c\/div\u003e\n\u003c\/div\u003e\n\u003c\/section\u003e\n\u003csection class=\"gy-block\"\u003e\n\u003ch2\u003eCompatible Insignia and Sharp 50-Inch TV Models\u003c\/h2\u003e\n\u003cdiv class=\"gy-grid\"\u003e\n\u003cdiv\u003e\n\u003ch3\u003eCheck Your TV Model and Production Revision\u003c\/h3\u003e\n\u003cp\u003eThe 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.\u003c\/p\u003e\n\u003cdiv class=\"gy-scroll\"\u003e\n\u003ctable class=\"gy-data gy-quick-models\"\u003e\n\u003cthead\u003e\n\u003ctr\u003e\n\u003cth scope=\"col\"\u003eTV model\u003c\/th\u003e\n\u003cth scope=\"col\"\u003eListed version(s)\u003c\/th\u003e\n\u003c\/tr\u003e\n\u003c\/thead\u003e\n\u003ctbody\u003e\n\u003ctr\u003e\n\u003ctd\u003e\u003cstrong\u003eNS-50DF710NA19\u003c\/strong\u003e\u003c\/td\u003e\n\u003ctd\u003eREV A, REV B\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003e\u003cstrong\u003eNS-50DF711SE21\u003c\/strong\u003e\u003c\/td\u003e\n\u003ctd\u003e\u003cspan class=\"gy-muted\"\u003eNot specified in supplied list\u003c\/span\u003e\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003e\u003cstrong\u003eLC-50LB601U\u003c\/strong\u003e\u003c\/td\u003e\n\u003ctd\u003eREV A-PR\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003c\/tbody\u003e\n\u003c\/table\u003e\n\u003c\/div\u003e\n\u003c\/div\u003e\n\u003cdiv class=\"gy-visual\"\u003e\u003cimg src=\"https:\/\/cdn.shopify.com\/s\/files\/1\/0778\/4353\/0021\/files\/NS-50DF710NA19.jpg?v=1789893123\" alt=\"LB50091 replacement backlight set compatibility reference image for Insignia NS-50DF710NA19 and Sharp LC-50LB601U\" loading=\"lazy\" decoding=\"async\"\u003e\u003c\/div\u003e\n\u003c\/div\u003e\n\u003cdiv class=\"gy-note\"\u003e\n\u003cstrong\u003eImportant fitment check:\u003c\/strong\u003e 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.\u003c\/div\u003e\n\u003ch3\u003eComplete Known-Models List — 3 TV Models\u003c\/h3\u003e\n\u003cp\u003eExpand the brand group to review the full supplied model list and version information.\u003c\/p\u003e\n\u003cdetails class=\"gy-model-group\"\u003e\n\u003csummary\u003eInsignia models \u003cspan class=\"gy-count\"\u003e2 models\u003c\/span\u003e\u003c\/summary\u003e\n\u003cdiv class=\"gy-scroll\"\u003e\n\u003ctable class=\"gy-data gy-models\"\u003e\n\u003cthead\u003e\n\u003ctr\u003e\n\u003cth scope=\"col\"\u003eTV model\u003c\/th\u003e\n\u003cth scope=\"col\"\u003eListed version(s)\u003c\/th\u003e\n\u003c\/tr\u003e\n\u003c\/thead\u003e\n\u003ctbody\u003e\n\u003ctr\u003e\n\u003ctd\u003e\u003cstrong\u003eNS-50DF710NA19\u003c\/strong\u003e\u003c\/td\u003e\n\u003ctd\u003eREV A, REV B\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003e\u003cstrong\u003eNS-50DF711SE21\u003c\/strong\u003e\u003c\/td\u003e\n\u003ctd\u003e\u003cspan class=\"gy-muted\"\u003eNot specified in supplied list\u003c\/span\u003e\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003c\/tbody\u003e\n\u003c\/table\u003e\n\u003c\/div\u003e\n\u003c\/details\u003e\n\u003cdetails class=\"gy-model-group\"\u003e\n\u003csummary\u003eSharp models \u003cspan class=\"gy-count\"\u003e1 models\u003c\/span\u003e\u003c\/summary\u003e\n\u003cdiv class=\"gy-scroll\"\u003e\n\u003ctable class=\"gy-data gy-models\"\u003e\n\u003cthead\u003e\n\u003ctr\u003e\n\u003cth scope=\"col\"\u003eTV model\u003c\/th\u003e\n\u003cth scope=\"col\"\u003eListed version(s)\u003c\/th\u003e\n\u003c\/tr\u003e\n\u003c\/thead\u003e\n\u003ctbody\u003e\n\u003ctr\u003e\n\u003ctd\u003e\u003cstrong\u003eLC-50LB601U\u003c\/strong\u003e\u003c\/td\u003e\n\u003ctd\u003eREV A-PR\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003c\/tbody\u003e\n\u003c\/table\u003e\n\u003c\/div\u003e\n\u003c\/details\u003e\n\u003cdiv class=\"gy-support\"\u003e\n\u003ch3\u003eFitment Support Before Ordering\u003c\/h3\u003e\n\u003cp\u003eIf 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.\u003c\/p\u003e\n\u003cp\u003e\u003cstrong\u003eEmail:\u003c\/strong\u003e \u003ca href=\"mailto:support@guuyebe.com\"\u003esupport@guuyebe.com\u003c\/a\u003e\u003c\/p\u003e\n\u003c\/div\u003e\n\u003c\/section\u003e\n\u003csection class=\"gy-block\"\u003e\n\u003ch2\u003eProduct Parameters and Part Number Identification\u003c\/h2\u003e\n\u003cdiv class=\"gy-grid\" style=\"align-items: start;\"\u003e\n\u003cdiv\u003e\n\u003ctable class=\"gy-data gy-spec\"\u003e\n\u003ctbody\u003e\n\u003ctr\u003e\n\u003cth scope=\"row\"\u003ePrimary Part Number\u003c\/th\u003e\n\u003ctd\u003eLB50091\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003cth scope=\"row\"\u003ePart Type\u003c\/th\u003e\n\u003ctd\u003eLED backlight strip set\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003cth scope=\"row\"\u003ePart Usage\u003c\/th\u003e\n\u003ctd\u003eLED\/LCD TV backlight assembly\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003cth scope=\"row\"\u003eListed Length\u003c\/th\u003e\n\u003ctd\u003e958 mm — confirm against your original L\/R assembly\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003cth scope=\"row\"\u003eLED Count\u003c\/th\u003e\n\u003ctd\u003e8 LEDs (R + L), as stated in the supplied listing; confirm each segment\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003cth scope=\"row\"\u003eIndividual LED Voltage\u003c\/th\u003e\n\u003ctd\u003e3 V per LED (as listed)\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003cth scope=\"row\"\u003ePackage Contents\u003c\/th\u003e\n\u003ctd\u003e8 strips: 4 left (L) + 4 right (R)\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003c\/tbody\u003e\n\u003c\/table\u003e\n\u003c\/div\u003e\n\u003cdiv\u003e\n\u003ctable class=\"gy-data gy-spec\"\u003e\n\u003ctbody\u003e\n\u003ctr\u003e\n\u003cth scope=\"row\"\u003ePanel References\u003c\/th\u003e\n\u003ctd\u003eTPT500U1-QVN03.U\u003cbr\u003eTPT500J1-HVN07.U\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003cth scope=\"row\"\u003eVisible Strip \/ Board Numbers\u003c\/th\u003e\n\u003ctd\u003eLB50091 V0_00\u003cbr\u003eLB50091 V1_00\u003cbr\u003eLB-PM3030-GJBBY504X8ABL2-L-T\u003cbr\u003eLB-PM3030-GJBBY504X8ABL2-R-T\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003cth scope=\"row\"\u003eOther Part Reference from Product Illustration\u003c\/th\u003e\n\u003ctd\u003eLB-PM3030-GJBBY504X8ABL2\u003cbr\u003e50D3503V2W3C1B3\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003cth scope=\"row\"\u003eWarranty\u003c\/th\u003e\n\u003ctd\u003e180-Day Warranty\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003c\/tbody\u003e\n\u003c\/table\u003e\n\u003c\/div\u003e\n\u003c\/div\u003e\n\u003cdiv class=\"gy-note\"\u003e\n\u003cstrong\u003eBefore ordering:\u003c\/strong\u003e 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.\u003c\/div\u003e\n\u003cfigure class=\"gy-wide-img\"\u003e\u003cimg src=\"https:\/\/cdn.shopify.com\/s\/files\/1\/0778\/4353\/0021\/files\/LB50091.jpg?v=1698139248\" alt=\"LB50091 product identification illustration for checking the left and right LED strip part numbers\" loading=\"lazy\" decoding=\"async\" style=\"width: 100%; max-width: 970px;\"\u003e\n\u003cfigcaption class=\"gy-photo-label\"\u003eProduct identification photo — compare the original LB50091 markings and left\/right layout with the reference image.\u003c\/figcaption\u003e\n\u003c\/figure\u003e\n\u003cfigure class=\"gy-wide-img\"\u003e\u003cimg src=\"https:\/\/cdn.shopify.com\/s\/files\/1\/0778\/4353\/0021\/files\/LB-PM3030-GJBBY504X8ABL2.jpg?v=1789893221\" alt=\"Additional GuuYebe LB50091 LED backlight set reference image showing the supplied product listing\" loading=\"lazy\" decoding=\"async\" style=\"width: 100%; max-width: 970px;\"\u003e\n\u003cfigcaption class=\"gy-photo-label\"\u003eAdditional product reference image from the supplied listing.\u003c\/figcaption\u003e\n\u003c\/figure\u003e\n\u003csection class=\"gy-unboxing\"\u003e\n\u003ch3\u003eLB50091 LED Backlight Strips Unboxing Video\u003c\/h3\u003e\n\u003cp\u003eWatch 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.\u003c\/p\u003e\n\u003cvideo controls=\"controls\" preload=\"none\" playsinline=\"\" poster=\"https:\/\/cdn.shopify.com\/s\/files\/1\/0778\/4353\/0021\/files\/LB50091.jpg?v=1698139248\"\u003e\u003csource src=\"https:\/\/cdn.shopify.com\/videos\/c\/o\/v\/c7b0417698e14b7d878e2e3c71f5a596.mp4\" type=\"video\/mp4\"\u003eYour browser does not support HTML5 video.\u003c\/source\u003e\u003c\/video\u003e\n\u003cp class=\"gy-small\"\u003eProduct video is a visual reference only. TV model and production revision still need to be checked against the installed strips.\u003c\/p\u003e\n\u003c\/section\u003e\n\u003c\/section\u003e\n\u003csection class=\"gy-block\"\u003e\n\u003ch2\u003eLED Backlight Strip Details\u003c\/h2\u003e\n\u003cdiv class=\"gy-cards\"\u003e\n\u003cdiv class=\"gy-card\"\u003e\n\u003cimg src=\"https:\/\/cdn.shopify.com\/s\/files\/1\/0778\/4353\/0021\/files\/LB-PM3030-GJBBY504X8ABL2-L-T.jpg?v=1789893356\" alt=\"LB50091 LED backlight strip bead and optical lens detail image\" loading=\"lazy\" decoding=\"async\"\u003e\n\u003ch3\u003eLED Beads and Optical Lenses\u003c\/h3\u003e\n\u003cp\u003eThe 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.\u003c\/p\u003e\n\u003c\/div\u003e\n\u003cdiv class=\"gy-card\"\u003e\n\u003cimg src=\"https:\/\/cdn.shopify.com\/s\/files\/1\/0778\/4353\/0021\/files\/LB-PM3030-GJBBY504X8ABL2-R-T.jpg?v=1789893356\" alt=\"LB50091 left and right LED backlight strip power connector reference image\" loading=\"lazy\" decoding=\"async\"\u003e\n\u003ch3\u003eConnector Interface\u003c\/h3\u003e\n\u003cp\u003eCheck connector size, contact arrangement, and orientation. A plug that looks similar is not enough to establish electrical and mechanical compatibility.\u003c\/p\u003e\n\u003c\/div\u003e\n\u003cdiv class=\"gy-card\"\u003e\n\u003cimg src=\"https:\/\/cdn.shopify.com\/s\/files\/1\/0778\/4353\/0021\/files\/LB-PM3030-GJBBY504X8ABL2_323ace00-0df3-470c-a168-5a6e005ae3ce.jpg?v=1789893356\" alt=\"LB50091 LED backlight strip backing and mounting position reference image\" loading=\"lazy\" decoding=\"async\"\u003e\n\u003ch3\u003eBacking and Mounting\u003c\/h3\u003e\n\u003cp\u003eThe 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.\u003c\/p\u003e\n\u003c\/div\u003e\n\u003c\/div\u003e\n\u003c\/section\u003e\n\u003csection class=\"gy-block\"\u003e\n\u003ch2\u003eInsignia or Sharp TV Has Sound but No Picture? Check the Backlight\u003c\/h2\u003e\n\u003cp\u003eIf 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.\u003c\/p\u003e\n\u003cp\u003e\u003ca href=\"https:\/\/guuyebe.com\/blogs\/tv-issues\/tv-has-sound-but-no-picture\"\u003eTV Has Sound But No Picture – Diagnosis Guide\u003c\/a\u003e\u003c\/p\u003e\n\u003cp\u003e\u003ca href=\"https:\/\/guuyebe.com\/blogs\/news\/replacement-tv-light-strip-using-tv-model-ua55ju5920jxxz-as-an-example\"\u003eHow to Replace TV LED Backlight Strips – General Replacement Guide\u003c\/a\u003e\u003c\/p\u003e\n\u003c\/section\u003e\n\u003csection class=\"gy-block\"\u003e\n\u003ch2\u003eTV LED Backlight Strip Replacement Process Video\u003c\/h2\u003e\n\u003cp class=\"gy-muted\"\u003eGeneral 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.\u003c\/p\u003e\n\u003cvideo controls=\"controls\" preload=\"none\" playsinline=\"\" poster=\"https:\/\/cdn.shopify.com\/s\/files\/1\/0778\/4353\/0021\/files\/GuuYebe_Video_Photo.jpg?v=1789183869\"\u003e\u003csource src=\"https:\/\/cdn.shopify.com\/videos\/c\/o\/v\/0d0e812417404634a02ef8e0deef5f9d.mp4\" type=\"video\/mp4\"\u003eYour browser does not support HTML5 video.\u003c\/source\u003e\u003c\/video\u003e\u003c\/section\u003e\n\u003c\/div\u003e","brand":"GuuYebe","offers":[{"title":"Default Title","offer_id":47225953157413,"sku":"102595","price":34.82,"currency_code":"USD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0778\/4353\/0021\/files\/1_d1f9dace-8434-4101-a936-d0dd95d4219a.jpg?v=1698139393","url":"https:\/\/guuyebe.com\/products\/sharp-insignia-lb50091-led-backlight-strips","provider":"GuuYebe","version":"1.0","type":"link"}