[{"data":1,"prerenderedAt":-1},["ShallowReactive",2],{"doc-seo-560824-105":3,"detail-sidebar-cat-0-en-105":81,"doc-detail-560824-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":74,"head_meta":76,"extra_data":78,"updated_unix":80},105,"en","lg-inverter-modification-ii-component-kit-installation-steps","LG Inverter Modification II - Component Kit Installation Steps","","Instructional technical guide for modifying an LG inverter using a component kit referenced as SCC_73709. Provides component list for master and slave boards, then details step-by-step procedures: confirm inverter model names, cut SW1 and SW2 tracks, verify cut integrity via visual inspection and DVM resistance measurements, assess parallel track pattern damage (HN1/HN2/GND cases), and rework boards by soldering resistors on PNEL-T707A and PNEL-T708A. Includes key resistance thresholds and installation precautions.",{"@graph":14,"@context":73},[15,34,56],{"@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/lg-inverter-modification-ii-component-kit-installation-steps/560824/",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/lg-inverter-modification-ii-component-kit-installation-steps/560824.png","ImageObject",300,407,{"name":42,"@type":43},"Chumphorn","Person",{"url":19,"name":45,"@type":46},"DocShare","Organization","application/pdf","2026-10-20","2026-10-12",true,{"@type":52,"interactionType":53,"userInteractionCount":55},"InteractionCounter",{"@type":54},"ViewAction",5,{"@type":57,"mainEntity":58},"FAQPage",[59,65,69],{"name":60,"@type":61,"acceptedAnswer":62},"What component kit is used for LG inverter modification II?","Question",{"text":63,"@type":64},"The guide lists TVS zener diodes (33 V) x2, MLCC capacitors (100 pF) x2, and resistors (DIP or SMD) of 4.7 Ω x4 for the master and slave boards, referenced under SCC_73709.","Answer",{"name":66,"@type":61,"acceptedAnswer":67},"How do you confirm the correct inverter models before rework?",{"text":68,"@type":64},"Confirm inverter model names: PNEL-T707A for MASTER and PNEL-T708A for SLAVE.",{"name":70,"@type":61,"acceptedAnswer":71},"What resistance values indicate correct or faulty SW1/SW2 line cutting?",{"text":72,"@type":64},"Measure resistance between two via holes on the cut SW line with a DVM. Several tens of kΩ indicates the line cut well (Case 1); under 1 Ω indicates a short (Case 2). After attaching the resistor, resistance should be 4.2–5.2 Ω.","https://schema.org",{"og:url":32,"og:type":75,"og:title":10,"og:site_name":45,"og:description":12},"article",{"robots":77,"canonical":32},"index,follow",{"doc_id":79,"site_id":7},560824,1791885142,{"code":4,"msg":82,"data":83},"success",[84,88,92,96,100,104,109,114,119,122,126],{"id":22,"doc_module":4,"doc_module_name":25,"category_name":85,"show_sort_weight":86,"slug":87},"Story & Novel",90,"story-novel",{"id":26,"doc_module":4,"doc_module_name":25,"category_name":89,"show_sort_weight":90,"slug":91},"Literature",80,"literature",{"id":33,"doc_module":4,"doc_module_name":25,"category_name":93,"show_sort_weight":94,"slug":95},"Exam",70,"exam",{"id":55,"doc_module":4,"doc_module_name":25,"category_name":97,"show_sort_weight":98,"slug":99},"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":55,"slug":129},19,"General","general",{"code":4,"msg":82,"data":131},{"doc_id":79,"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":55,"is_deleted":4,"is_public":22,"is_downloadable":22,"audit_status":22,"page_count":139,"language":140,"language_code":8,"site_id":7,"html_lang":8,"table_of_contents":141,"faqs":142,"seo_title":143,"seo_description":12,"update_tm":144,"read_time":145},2336475401981,"https://ap-avatar.wpscdn.com/avatar/22000c94efd8d5204d?x-image-process=image/resize,m_fixed,w_180,h_180&k=1786935347598174694","LG inverter modification “II”  \n[Ref. nr. SCC_73709](Ref. nr. SCC_73709)[ ](Ref. nr. SCC_73709)[Doc. version 1.2](Doc. version 1.2)[ ](Doc. version 1.2)October 30, 2009  \n SCC_73709  \nCOMPONENT KIT (996500095005)  \nThe Component Kit includes the following components (for Master & Slave) :  \n• TVS zener diode (33 V) x 2  \n• MLCC capacitor (100 pF) x 2  \n• Resistor (DIP type or SMD) 4.7 Ω x 4  \nSCC_73709  \nSTEP 1  \nConfirm Inverter model name:  \n•PNEL-T707A(MASTER),  \n•PNEL-T708A(SLAVE) .  \nREMARK 1  \n• It does not matter if the zener diode (modification “I”) exists or not for inverter modification “II”.  \n SCC_73709  \nSTEP 2.1  \nCut tracks:  \n-Cut the SW1 & SW2 tracks on both inverters.  \n-Confirm that there are no short circuits with metal pieces of tracks, and there is no damage to other tracks !  \nPNEL-T707A  \nPNEL-T708A  \nSCC_73709  \nSTEP 2.2  \n1. Check the secure cut line (SW1 & SW2) by visual inspection first:  \n􀃆 Visual inspection to verify if cut well and not damaged.  \n2. Check the resistance between two ‘via’ holes of the cut SW line:  \n􀃆 Measure the resistance of the cutted SW1 & SW2 line through „via‟ holes with a DVM (Digital Volt Meter) .  \n\n| Measure Point (Master) |  |  | Cut Mark |  | Measure Point (Slave) |  |\n| --- | --- | --- | --- | --- | --- | --- |\n| | |  |  |  | | |\n\nCase 1 > Several tens of kΩ: Line cut well.  \nCase 2 > under 1 Ω: Line short.  \n※After attaching the resistor, the resistance should be 4.2 ~ 5.2 Ω .  \nSCC_73709  \nSTEP 2.3  \nCheck pattern damage of parallel tracks  \nCut Mark  \nSW2 Pattern  \nSW1 Pattern  \nHN2 Pattern HN1 Pattern  \nGND  \nCut mark  \nGND  \nSW1 Pattern  \nHN1 Pattern  \nSW2 Pattern  \nHN2 Pattern  \nCase study for pattern damage of parallel tracks  \nParallel tracks of SW line are HN1, HN2 and GND tracks.  \n-Case1> If cut the HN track by mistake 􀃆 Cause of Inverter malfunction.  \n􀃆 Check : HN line‟s resistance should be under 0.5Ω when measured with DVM (resistance b.t.w. via holes of HN line) .  \n-Case2> Damage on GND track by mistake 􀃆 No affect to Inverter function.  \n􀃆 No damage on GND function because GND track is spread widely.  \nSCC_73709  \nREMARK 2  \n• The kit of components can include the following resistors:  \n􀂾 4 x DIP type resistors (4 .7 Ω) with shrink tube (20 mm)  \n􀂙 then go to step 3.1 and 3.2  \nOR  \n􀂾 4 x SMD type resistors (4 .7 Ω)  \n􀂙 then go to step 3.3  \nSCC_73709  \nSTEP 3.1  \nSolder resistors on board PNEL-T708A:  \n-Remove the coating/varnish on solder point to reveal the copper pad.  \n-Solder resistor (DIP type resistors (4 .7 Ω) with shrink tube (20 mm)) on solder points (red marks) .  \nPNEL-T708A  \nPNEL-T708A  \nSCC_73709  \nSTEP 3.2  \nSolder resistors on board PNEL-T707A:  \n-Remove the coating/varnish on solder point to reveal the copper pad.  \n-Solder resistor (DIP type resistors (4 .7 Ω) with shrink tube (20 mm)) on solder points (red marks) .  \nPNEL-T707A  \nPNEL-T707A  \nSCC_73709  \nREMARK 3  \nFront side of reworked inverter (DIP type resistor):  \n\n| DIP type resistor (Front) |  |\n| --- | --- |\n| | |\n\nSide view dimension of implemented inverter  \n􀃆 Take care that the height of the DIP type resistor is below the height of the transformer because of the metal shielding on the inverter boards.  \n11mm  \nCap.  \n8mm  \nResistor  \n3.5mm  \nTrans.  \n10.1mm  \n3.5mm  \nCover Bottom  \nShield Cover  \n1mm","cbCaiolbnRHVsNS3","https://ap.wps.com/l/cbCaiolbnRHVsNS3","pdf",645373,14,"English","# Component Kit (SCC_73709)\n## Confirm Inverter Model Name\n## Step 1 - Confirm Inverter model name\n## Step 2 - Cut tracks (SW1 & SW2)\n## Step 2.1 - Cut tracks and safety checks\n## Step 2.2 - Verify cut line resistance with DVM\n## Step 2.3 - Check pattern damage of parallel tracks\n## Remark - Component kit resistor options\n## Step 3.1 - Solder resistors on PNEL-T708A\n## Step 3.2 - Solder resistors on PNEL-T707A\n## Remark - Reworked inverter inspection and dimensions","[{\"question\":\"What component kit is used for LG inverter modification II?\",\"answer\":\"The guide lists TVS zener diodes (33 V) x2, MLCC capacitors (100 pF) x2, and resistors (DIP or SMD) of 4.7 Ω x4 for the master and slave boards, referenced under SCC_73709.\"},{\"question\":\"How do you confirm the correct inverter models before rework?\",\"answer\":\"Confirm inverter model names: PNEL-T707A for MASTER and PNEL-T708A for SLAVE.\"},{\"question\":\"What resistance values indicate correct or faulty SW1/SW2 line cutting?\",\"answer\":\"Measure resistance between two via holes on the cut SW line with a DVM. Several tens of kΩ indicates the line cut well (Case 1); under 1 Ω indicates a short (Case 2). After attaching the resistor, resistance should be 4.2–5.2 Ω.\"}]","LG Inverter Modification II - Component Kit Installation Steps | PDF",1791804215,35]