[{"data":1,"prerenderedAt":-1},["ShallowReactive",2],{"doc-seo-560588-105":3,"detail-sidebar-cat-0-en-105":80,"doc-detail-560588-en":130},{"code":4,"msg":5,"data":6},0,"ok",{"site_id":7,"language":8,"slug":9,"title":10,"keywords":11,"description":12,"schema_data":13,"social_meta":73,"head_meta":75,"extra_data":77,"updated_unix":79},105,"en","mulja-tv-repair-portal-lg-str-t2268-power-supply-repair-discussion","Mulja tv repair portal - LG str-t2268 power supply repair discussion","","Discussion thread focused on repairing the power supply for an LG 37LB1R using the STR-T2268 component after it blows. Participants exchange suspected faulty SMD parts (C920, C921, C924) and ask for component values or schematic guidance. Replies provide alternative parts list values and additional elements to check, including capacitors, a ZD911 zener voltage, and resistor values. The conversation concludes with advice to verify circuit elements and replace STR T2268, plus sourcing options for complete or kit power-supply boards.",{"@graph":14,"@context":72},[15,34,55],{"@type":16,"itemListElement":17},"BreadcrumbList",[18,23,27,31],{"item":19,"name":20,"@type":21,"position":22},"https://docshare.wps.com","Home","ListItem",1,{"item":24,"name":25,"@type":21,"position":26},"https://docshare.wps.com/document/","Document",2,{"item":28,"name":29,"@type":21,"position":30},"https://docshare.wps.com/document/technology/","Technology",3,{"item":32,"name":10,"@type":21,"position":33},"https://docshare.wps.com/document/mulja-tv-repair-portal-lg-str-t2268-power-supply-repair-discussion/560588/",4,{"url":32,"name":10,"@type":35,"image":36,"author":41,"headline":10,"publisher":44,"fileFormat":47,"inLanguage":8,"description":12,"dateModified":48,"datePublished":49,"encodingFormat":47,"isAccessibleForFree":50,"interactionStatistic":51},"DigitalDocument",{"url":37,"@type":38,"width":39,"height":40},"https://docshare.wps.com/thumbnails/mulja-tv-repair-portal-lg-str-t2268-power-supply-repair-discussion/560588.png","ImageObject",300,407,{"name":42,"@type":43},"นรินทร์","Person",{"url":19,"name":45,"@type":46},"DocShare","Organization","application/octet-stream","2026-10-25","2026-10-12",true,{"@type":52,"interactionType":53,"userInteractionCount":30},"InteractionCounter",{"@type":54},"ViewAction",{"@type":56,"mainEntity":57},"FAQPage",[58,64,68],{"name":59,"@type":60,"acceptedAnswer":61},"Which component failed in the LG 37LB1R power supply, and what symptoms were reported?","Question",{"text":62,"@type":63},"The STR-T2268 was reported as blown after attempting to repair the power supply. The user then identified specific SMD capacitors (C920, C921, C924) as faulty during component testing.","Answer",{"name":65,"@type":60,"acceptedAnswer":66},"What capacitor values did the thread propose for C920, C921, and C924?",{"text":67,"@type":63},"One participant provided a parts list: C920 224K 50V, C921 475k 16V, and C924 105K 16V, described as non-polarised SMD. Another participant later listed different capacitor expectations for multiple locations.",{"name":69,"@type":60,"acceptedAnswer":70},"Besides C919/C920/C921/C922/C924, what other elements were suggested to check?",{"text":71,"@type":63},"Suggested checks included ZD911 at 3.3V and resistors such as R920=330, R972=100, and R1018=750. The thread also recommended replacing STR T2268 and confirming the full set of elements on the diagram.","https://schema.org",{"og:url":32,"og:type":74,"og:title":10,"og:site_name":45,"og:description":12},"article",{"robots":76,"canonical":32},"index,follow",{"doc_id":78,"site_id":7},560588,1792161013,{"code":4,"msg":81,"data":82},"success",[83,87,91,95,100,104,109,114,119,122,126],{"id":22,"doc_module":4,"doc_module_name":25,"category_name":84,"show_sort_weight":85,"slug":86},"Story & Novel",90,"story-novel",{"id":26,"doc_module":4,"doc_module_name":25,"category_name":88,"show_sort_weight":89,"slug":90},"Literature",80,"literature",{"id":33,"doc_module":4,"doc_module_name":25,"category_name":92,"show_sort_weight":93,"slug":94},"Exam",70,"exam",{"id":96,"doc_module":4,"doc_module_name":25,"category_name":97,"show_sort_weight":98,"slug":99},5,"Comic",60,"comic",{"id":101,"doc_module":4,"doc_module_name":25,"category_name":29,"show_sort_weight":102,"slug":103},6,50,"technology",{"id":105,"doc_module":4,"doc_module_name":25,"category_name":106,"show_sort_weight":107,"slug":108},7,"Healthcare",40,"healthcare",{"id":110,"doc_module":4,"doc_module_name":25,"category_name":111,"show_sort_weight":112,"slug":113},8,"Research & Report",30,"research-report",{"id":115,"doc_module":4,"doc_module_name":25,"category_name":116,"show_sort_weight":117,"slug":118},9,"Religion & Spirituality",20,"religion-spirituality",{"id":117,"doc_module":4,"doc_module_name":25,"category_name":120,"show_sort_weight":117,"slug":121},"World Cup","world-cup",{"id":123,"doc_module":4,"doc_module_name":25,"category_name":124,"show_sort_weight":123,"slug":125},10,"Lifestyle","lifestyle",{"id":127,"doc_module":4,"doc_module_name":25,"category_name":128,"show_sort_weight":96,"slug":129},19,"General","general",{"code":4,"msg":81,"data":131},{"doc_id":78,"user_id":132,"nickname":42,"user_avatar":133,"doc_module":4,"category_id":101,"category_name":29,"doc_title":10,"doc_description":12,"doc_content":134,"file_id":135,"file_url":136,"file_type":137,"file_size":138,"view_count":30,"is_deleted":4,"is_public":22,"is_downloadable":22,"audit_status":22,"page_count":30,"language":139,"language_code":8,"site_id":7,"html_lang":8,"table_of_contents":140,"faqs":141,"seo_title":142,"seo_description":12,"update_tm":143,"read_time":110},2336475104957,"https://ap-avatar.wpscdn.com/avatar/22000c4c6bd8a5076e1?x-image-process=image/resize,m_fixed,w_180,h_180&k=1787554080175789136","Mulja tv repair portal\nEquipment Repairs => LCD TV forum => Topic started by: coss on July 08, 2008,03:12:36\nTitle: LG str-t2268\u000bPost by: coss on July 08, 2008,03:12:36\nHello all, first time here,\u000b\u000bIm trying to repair the power supply for a LG 37LB1R (ML-051 same for rz37lz55), the strt2268 is blown. I got one and started to test the other components, i found c924, c921, c920 faulty.\u000b\u000bCan anyone tell what are their values, ore spare me the schematics please?\u000bany other components i should check besides d911 and r920?\u000b\u000bThanks a lot!\nTitle: Re: LG str-t2268\u000bPost by: mulja on July 08, 2008,21:02:40\nParts available in kit form and as complete power supply very cheap from Charles Hyde\nTitle: Re: LG str-t2268\u000bPost by: tv tony on July 08, 2008,22:07:26\nhello all, unfortunately the kit is no longer available, but the whole pcb is only £12.35+vat. trade\u000b they dont know when it will be available again\u000btony walker\nTitle: Re: LG str-t2268\u000bPost by: tv tony on July 09, 2008,00:26:27\nbut here is the circuit anyway\nTitle: Re: LG str-t2268\u000bPost by: coss on July 09, 2008,01:17:10\nI have found the chs kit part list and its:\u000b\u000bC920- 224K 50V\u000bc921- 475k 16V\u000bC924- 105K 16V\u000ball not polarised smd\u000b\u000bIs that 220pf - 4,5nf - 1nf\u000bor\u000b220nf - 4,7uf(?) - 1uf\u000b\u000bThanks a lot!\nTitle: Re: LG str-t2268\u000bPost by: ggg3 on July 09, 2008,20:10:12\nCheck the following elements;  C919=1000nf/ C920=0,1mf/ C921=1000nf/ C922=0,1mf/ C924=0,1mf/ ZD911=3.3V/ R920=330/ R972=100/ R1018=750\nTitle: Re: LG str-t2268\u000bPost by: coss on July 10, 2008,01:33:22\n\u0013 HYPERLINK \"http://www.tv.quuq.org/forum/index.php?PHPSESSID=1d79faea9fd7463eedc772f2c71d988b&topic=1087.msg1811\" \\l \"msg1811\" \u0014Quote from: ggg3 on July 09, 2008,20:10:12 \u0015\nCheck the following elements;  C919=1000nf/ C920=0,1mf/ C921=1000nf/ C922=0,1mf/ C924=0,1mf/ ZD911=3.3V/ R920=330/ R972=100/ R1018=750\nHello,\u000bI did that, c920, c921, c924 are in shortcut, rest of the capacitors are ok, thats why i asked for thier values.\u000bI see that yours are very diferent from charles hyde kithttp://www.chsinteractive.co.uk/pdf_data/23007DX.pdf (http://www.chsinteractive.co.uk/pdf_data/23007DX.pdf) .\u000b\u000bWhat should i try?\u000bThanks a lot\nTitle: Re: LG str-t2268\u000bPost by: ggg3 on July 10, 2008,03:30:26\nHello, \u000bCheck all the elements that I wrote and replace STR T2268.\nTitle: Re: LG str-t2268\u000bPost by: coss on July 10, 2008,18:50:56\nHi ggg3\u000b\u000bsorry to insist on this, i just got the psu diagram and there the capacitor values are the same as i posted before. Why are yours diferent, is that a modification i should do?\u000b\u000bthanks.\n\u0013 HYPERLINK \"http://www.tv.quuq.org/forum/index.php?PHPSESSID=1d79faea9fd7463eedc772f2c71d988b&topic=1087.msg1813\" \\l \"msg1813\" \u0014Quote from: ggg3 on July 10, 2008,03:30:26 \u0015\nHello, \u000bCheck all the elements that I wrote and replace STR T2268.\nTitle: Re: LG str-t2268\u000bPost by: tv tony on July 10, 2008,22:43:42\nhello, we will get u sorted, \u000b                                      hello to russia, \u000bi can get you the uk address for a full psu, approx 12.00 plus \u000bvat, they are a universal psu for this model, but i can verify that chs no longer stock the kit, that is why tho full psu is so cheap, regards, \u000btony walker","cbCair9S8NJl1zx0","https://ap.wps.com/l/cbCair9S8NJl1zx0","doc",36352,"English","# Power supply repair request\n## Suspected faulty capacitors and STR-T2268\n# Sourcing and circuit reference\n## Alternative part lists and repair guidance","[{\"question\":\"Which component failed in the LG 37LB1R power supply, and what symptoms were reported?\",\"answer\":\"The STR-T2268 was reported as blown after attempting to repair the power supply. The user then identified specific SMD capacitors (C920, C921, C924) as faulty during component testing.\"},{\"question\":\"What capacitor values did the thread propose for C920, C921, and C924?\",\"answer\":\"One participant provided a parts list: C920 224K 50V, C921 475k 16V, and C924 105K 16V, described as non-polarised SMD. Another participant later listed different capacitor expectations for multiple locations.\"},{\"question\":\"Besides C919/C920/C921/C922/C924, what other elements were suggested to check?\",\"answer\":\"Suggested checks included ZD911 at 3.3V and resistors such as R920=330, R972=100, and R1018=750. The thread also recommended replacing STR T2268 and confirming the full set of elements on the diagram.\"}]","Mulja tv repair portal - LG str-t2268 power supply repair discussion | DOC",1791803638]