Lenovo L193 Wide Service Manual

Also see for L193 Wide: User manual

Contents

19” LCD Color Monitor Lenovo L193 Wide1ServiceServiceServiceHorizontal Frequency30-81 kHzTABLE OF CONTENTSDescription Page Description PageNSAFETY NOTICEANY PERSON ATTEMPTING TO SERVICE THIS CHASSIS MUST FAMILIARIZE HIMSELF WITH THECHASSIS AND BE AWARE OF THE NECESSARY SAFETY PRECAUTIONS TO BE USED WHEN SERVICINGELECTRONIC EQUIPMENT CONTAINING HIGH VOLTAGES.Table Of Contents.......……..............................…........1Revision List.…........................................……......2Important Safety Notice.…….........................……......31.Monitor Specification..............................………........42.LCD Monitor Description…………………………….......53.Operation Instruction……………...............……...........63.1.General Instructions………..........................…...........63.2.Control Button…………….…..............……...............63.3.Adjusting the Picture...........................…............74.Input/Output Specification............……………............94.1.Input Signal Connector............………….................94.2.Factory Preset Display Modes.........................94.3.Panel Specification.....……...……………..................105.Block Diagram………...................…………................125.1.Software Flow Chart…..………………………...........125.2.Electrical Block Diagram…………………..….......146.Schematic…………………...................................…166.1.Main Board.................................................166.2.Power Board....……….…....................................207.PCB Layout..……………….......................................227.1.Main Board……………........................................227.2.Power Board…......................................................257.3.Key Board…………...…….....................................268.Maintainability…………….........................................278.1.Equipments and Tools Requirement...............278.2.Trouble Shooting…………..............................289.White-Balance Luminance adjustment….……….....3410.Monitor Exploded View…….………………….........3611.BOM List….............................................................3712.Different Parts List…..............................................47CAUTION: USE A SEPARATE ISOLATION TRANSFOMER FOR THIS UNIT WHEN SERVICINGhttp://www.wjel.net