Norcent LT2790BK Service Manual
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Contents
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27’’ LCD TV Norcent LT2790BK1ServiceServiceService显示桌面.scfHorizontal Frequency31- 60KHzTABLE OF CONTENTSDescription Page Description PageSAFETY NOTICEANY PERSON ATTEMPTING TO SERVICE THIS CHASSIS MUST FAMILIARIZE HIMSELF WITH THE CHASSISAND BE AWARE OF THE NECESSARY SAFETY PRECAUTIONS TO BE USED WHEN SERVICING ELECTRONICEQUIPMENT CONTAINING HIGH VOLTAGES.7.1 Main Board……...……………………....….......257.2 Power Board………………………….....….......277.3. Key Board….…......………….................…….........297.4 IR Board...……………...…..................................298. Block Diagram..……..............….......................308.1 Main Board......……….………...............................308.2 Power Board…...……...….…..........................319. Schematic Diagram...………….………..………….......329.1 Main Board……...…..……..………......................329.2 Power Board...……………….……………………...499.3 Audio Board………..……………..………………..509.4 Side Board …………………………………………..519.5 IR Board………….………………………………..5210. Exploded View……...................................................5311.BOM List………………………….....……….……….....54Table Of Contents.......…….…..............................…........1Revision List.…….….....................................……......2Important Safety Notice.……..................……......31. Monitor Specification..…............................………........42. Operating Instructions……...……………….……….......52.1 The Use Of Remote Control..………….…..................52.2 Front Panel Control Knobs..............….......…...........62.3 OSD Operating…………….…............……...............72.4 How To Connect...………........................…............143. Input/Output Specification............……………............163.1 Input Signal Connector............………….................163.2 Factory Preset Display Modes........………...............174. Mechanical Instructions..………....……......................185. Repair Flow Chart…….……………………..................216. White Balance, Luminance Adjustment………….....237.PCB Layout……..…………………....….…….....25CAUTION: USE A SEPARATE ISOLATION TRANSFOMER FOR THIS UNIT WHEN SERVICING |
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