{"id":45934,"date":"2021-06-10T06:43:51","date_gmt":"2021-06-10T06:43:51","guid":{"rendered":"https:\/\/www.silmantech.com\/?p=45934"},"modified":"2024-04-13T09:10:20","modified_gmt":"2024-04-13T09:10:20","slug":"diagnostic-analysis-and-repair-examples-of-lcd-tv-cof-side-board-circuit","status":"publish","type":"post","link":"https:\/\/silmantech.com\/ar\/diagnostic-analysis-and-repair-examples-of-lcd-tv-cof-side-board-circuit\/","title":{"rendered":"LCD Panel PCB Troubleshooting and Repair"},"content":{"rendered":"
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This article analyzes and introduces Samsung screens, Chi Mei and other screens. It mainly explains the function and composition of the LCD Panel PCB, the circuit introduction of the LCD Panel PCB (T-CON board), how to identify the representative symbols of the LCD screens of various manufacturers, and the common problems on the LCD Panel PCB. Analysis, analysis of maintenance ideas for the LCD Panel PCB part and analysis of maintenance cases. 1. The role and composition of the LCD Panel PCB The information transmission between the main board and the screen body mainly includes the T-CON circuit, the LCD Panel PCB and the COF. The latter two are the signal link lines, which are the link between the OC and the PCB, so Focus on the principle and maintenance of T-CON circuit. According to the different manufacturer’s screen design, it mainly includes the following forms:<\/div><\/div>\n\t
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1. \u062f\u0627\u0626\u0631\u0629 \u0644\u0648\u062d\u0629 T-CON \u0645\u0646\u0641\u0635\u0644\u0629<\/p>\n

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\u0647\u0630\u0627 \u0647\u0648 \u0634\u0643\u0644 \u0645\u062c\u0645\u0648\u0639\u0629 \u062f\u0648\u0627\u0626\u0631 \u062a\u0642\u0644\u064a\u062f\u064a\u0629\u060c \u064a\u062a\u0645 \u0627\u0633\u062a\u062e\u062f\u0627\u0645 \u0634\u0631\u064a\u0637 \u062d\u0627\u0641\u0629 \u0648\u0627\u062d\u062f \u0645\u0646 \u0642\u0628\u0644 \u0645\u0639\u0638\u0645 \u0627\u0644\u0634\u0631\u0643\u0627\u062a \u0627\u0644\u0645\u0635\u0646\u0639\u0629\u060c \u0643\u0645\u0627 \u0623\u0646 \u0645\u0639\u062f\u0644 \u0627\u0644\u0641\u0634\u0644 \u0647\u0648 \u0627\u0644\u0623\u0639\u0644\u0649 \u0623\u064a\u0636\u064b\u0627\u060c \u062e\u0627\u0635\u0629 \u0628\u0627\u0644\u0646\u0633\u0628\u0629 \u0644\u0634\u0631\u0627\u0626\u0637 \u0627\u0644\u062d\u0627\u0641\u0629 \u0645\u0646 LG\u060c \u0637\u0627\u0644\u0645\u0627 \u0623\u0646 \u0627\u0644\u0645\u0627\u0621 \u064a\u062f\u062e\u0644\u060c \u064a\u062c\u0628 \u0627\u0633\u062a\u0628\u062f\u0627\u0644 \u0627\u0644\u0645\u0644\u0627\u062d\u0638\u0629\u060c \u0648\u0633\u064a\u0639\u0645\u0644 COF \u062a\u062a\u0636\u0631\u0631 \u0641\u064a \u0627\u0644\u062d\u0627\u0644\u0627\u062a \u0627\u0644\u062e\u0637\u064a\u0631\u0629. \u064a\u062a\u0645 \u0625\u0631\u0633\u0627\u0644 \u0625\u0634\u0627\u0631\u0629 LVDS \u0627\u0644\u0646\u0627\u062a\u062c\u0629 \u0639\u0646 \u0627\u0644\u0644\u0648\u062d\u0629 \u0627\u0644\u0631\u0626\u064a\u0633\u064a\u0629 \u0625\u0644\u0649 \u0644\u0648\u062d\u0629 TCON \u0644\u0644\u0645\u0639\u0627\u0644\u062c\u0629 \u0648\u0627\u0644\u062a\u062d\u0648\u064a\u0644 \u0625\u0644\u0649 \u0625\u0634\u0627\u0631\u0627\u062a \u062a\u062d\u0643\u0645 \u0645\u062e\u062a\u0644\u0641\u0629 (STV\u060c CKV\u060c STH\u060c CKH\u060c POL) \u0648\u0625\u0634\u0627\u0631\u0627\u062a \u0628\u064a\u0627\u0646\u0627\u062a \u0627\u0644\u0635\u0648\u0631\u0629 (RSDS) \u0627\u0644\u0645\u0637\u0644\u0648\u0628\u0629. \u0623\u0636\u0641 \u0625\u0644\u0649 OC \u0628\u0627\u0644\u062a\u0648\u0627\u0632\u064a \u0644\u062a\u0642\u062f\u064a\u0645 \u0627\u0644\u0635\u0648\u0631\u0629.
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2. The integrated circuit of the LCD Panel PCB and T-CON board<\/div><\/div>\n\t
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\u0647\u0630\u0627 \u0647\u0648 \u0623\u064a\u0636\u064b\u0627 \u0634\u0643\u0644 \u0645\u062c\u0645\u0648\u0639\u0629 \u0627\u0644\u062f\u0648\u0627\u0626\u0631 \u0627\u0644\u062a\u0642\u0644\u064a\u062f\u064a\u0629\u060c \u0648\u0637\u0631\u064a\u0642\u0629 \u0627\u0644\u062a\u062d\u0643\u0645 \u0647\u064a \u0646\u0641\u0633\u0647\u0627 \u0627\u0644\u0645\u0630\u0643\u0648\u0631\u0629 \u0623\u0639\u0644\u0627\u0647\u060c \u0648\u0644\u0643\u0646 \u0628\u062f\u0648\u0646 \u0644\u0648\u062d\u0629 T-CON \u0645\u0646\u0641\u0635\u0644\u0629\u060c \u064a\u062a\u0645 \u0632\u064a\u0627\u062f\u0629 \u0639\u0627\u0645\u0644 \u0627\u0644\u0635\u064a\u0627\u0646\u0629. \u0645\u0646 \u0627\u0644\u0645\u0647\u0645 \u0628\u0634\u0643\u0644 \u062e\u0627\u0635 \u0627\u0644\u062a\u062d\u0642\u0642 \u0645\u0646 \u0627\u0644\u0639\u062f\u064a\u062f \u0645\u0646 \u0627\u0644\u0641\u0648\u0644\u062a\u064a\u0629 \u0627\u0644\u0631\u0626\u064a\u0633\u064a\u0629 \u0623\u062b\u0646\u0627\u0621 \u0627\u0644\u0635\u064a\u0627\u0646\u0629: VGH\u060c VGL\u060c VCOM\u060c \u0625\u0644\u062e.
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3. High-voltage board, T-CON board and LCD Panel PCB are integrated<\/div><\/div>\n\t
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4. \u0647\u0630\u0647 \u0627\u0644\u0622\u0644\u0629 \u0623\u0642\u0644\u060c \u062a\u0633\u062a\u062e\u062f\u0645 Haier's T315XW06 V5 OC \u0647\u0630\u0627 \u0627\u0644\u0646\u0645\u0648\u0630\u062c
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STV, CKV, STH, CKH, POL and image data signal (RSDS) to the LCD Panel PCB, generally use flat cable to enter the LCD Panel PCB. Many of the current integrated boards use this form, which brings inconvenience to maintenance.<\/div><\/div>
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Analysis of common problems on the LCD Panel PCB
\nThe faults in the LCD Panel PCB are mainly manifested as: black screen, gray screen, blurred screen, vertical lines on the screen, vertical strips, etc.The main cause of the above-mentioned faults is caused by water in the LCD Panel PCB!
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\"\"<\/div>\n\t\t<\/figure>\n\t<\/div>\n
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This article analyzes and introduces Samsung screens, Chi Mei and other screens. It mainly explains the function and composition of the LCD Panel PCB, the circuit introduction of the LCD Panel PCB (T-CON board), how to identify the representative symbols of the LCD screens of various manufacturers, and the common problems on the LCD Panel…<\/p>","protected":false},"author":2,"featured_media":0,"comment_status":"closed","ping_status":"closed","sticky":false,"template":"","format":"standard","meta":{"_stopmodifiedupdate":false,"_modified_date":"","footnotes":""},"categories":[87,1],"tags":[],"class_list":["post-45934","post","type-post","status-publish","format-standard","hentry","category-bonding-machine","category-news","category-87","category-1","description-off"],"_links":{"self":[{"href":"https:\/\/silmantech.com\/ar\/wp-json\/wp\/v2\/posts\/45934","targetHints":{"allow":["GET"]}}],"collection":[{"href":"https:\/\/silmantech.com\/ar\/wp-json\/wp\/v2\/posts"}],"about":[{"href":"https:\/\/silmantech.com\/ar\/wp-json\/wp\/v2\/types\/post"}],"author":[{"embeddable":true,"href":"https:\/\/silmantech.com\/ar\/wp-json\/wp\/v2\/users\/2"}],"replies":[{"embeddable":true,"href":"https:\/\/silmantech.com\/ar\/wp-json\/wp\/v2\/comments?post=45934"}],"version-history":[{"count":0,"href":"https:\/\/silmantech.com\/ar\/wp-json\/wp\/v2\/posts\/45934\/revisions"}],"wp:attachment":[{"href":"https:\/\/silmantech.com\/ar\/wp-json\/wp\/v2\/media?parent=45934"}],"wp:term":[{"taxonomy":"category","embeddable":true,"href":"https:\/\/silmantech.com\/ar\/wp-json\/wp\/v2\/categories?post=45934"},{"taxonomy":"post_tag","embeddable":true,"href":"https:\/\/silmantech.com\/ar\/wp-json\/wp\/v2\/tags?post=45934"}],"curies":[{"name":"wp","href":"https:\/\/api.w.org\/{rel}","templated":true}]}}