Haier L42S9 Service Manual

42”LCD TV Haier L42S91ServiceServiceServiceHorizontal Frequency31~67 kHzTABLE 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 SERVICINGELECTRONIC EQUIPMENT CONTAINING HIGH VOLTAGES.CAUTION: USE A SEPARATE ISOLATION TRANSFOMER FOR THIS UNIT WHEN SERVICINGTable Of Contents.......……...................................…........1Important Safety Notice.......................................……......2Revision List…………………………………………………31. General Specification.................................………........42. Operating Instructions…………………….……...….......52.1 The Use of Remote Control…….…………...…….......52.2 To Use the Menu…...…………………….…………......82.3 How to Connect…….…………………….…..…….....232.4 Front Panel Control Knobs……………….………......263. Input/Output Specification…………....................…....274. Mechanical Instructions…………………….................305. Repair Flow Chart ……………………….…….…….....336. PCB Layout ………………..………………....…..........376.1 Main Board………………..……………...…….….......376.2 Adapter Board……………..………….…..…….......396.3 Key Board………………………..……..……….......426.4 IR Board…………………………..……….…….......427. Adjustment..............................................................438. Block Diagram.…….................................................459. Wiring Diagram.……...............................................4610. Schematic Diagram………..……..………………...4710.1 Main Board…………….…………………...….......4710.2 Adapter Board…………....…………...……….......6510.3 Key Board……………….………….………….......6610.4 IR Board……………………………….……….......6711. Exploded View……………………….………….…...6812. BOM List……………….…………………………….7013. Different Parts List…….………….…………………97

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