AMOI LCD20T5E free download

File name LCD20T5E.pdf

LCD TV After Service Manual MODEL:LCD20T5E Notice: Please read this manual and the user's manual before repairment. This manual is just for reference. After-sales Service manual Model: LCD20T5E Contents: 1Preparation before maintenance... 1 2Work Principle and Electric connection chart ...2 3Block diagram of electric...8 4Circuit Principle Chart ...9 5IC Spec...34 6 Software initialzation Software version view and upgrade instruction ...60 7Exploded Views-Mechanical ...78 8Installation Instruction ...79 9Maintenance spare part list ...82 10Trouble Shooting...84 NoteDisassembly Instructions 1. Preparation before maintenance: Common contents, it mainly expresses the information which need your attention, including the Safety instruction and the Protect measure.. 2. Electric connection chart: Identify the plug specification and the connection between the pins and the board by the unit of PCB. 3. Block diagram of electric: Show the signal processing of the unit in the unit of 1C or circuit. 4. Schematic Diagrams: Provide the circuit chart in the unit of PCB and provide the detailed principle chart with the simple signal processing and control instruction. 5. Software version view and upgrade instruction: The method of software version view and the software upgrade instruction. 6. Maintenance spare part list: Including the Package, Accessory, PCB, Connector,, etc. and the material list that the service person can replace themselves. 1Preparation before maintenance 1.1Master basic information. Adequate communication with customers is required, to learn how the trouble happens and what the status is. This will help to promote effect and efficiency of the service. Learn if the trouble has conflict with technical standards. 1.2Reappearance of the trouble. Please assure: a. If the trouble exists as the customer described, and make initial judgment of the status, then decide what to do next; b. If any other trouble exists; c. May reset the machine under some instances. For example: when the picture and color could not satisfy the customer, could reset the machine first and then make amendment. Method: Press the "source"button for about five seconds, the" Factory setting" will be displayed, select the" factory reset" and enter, then select the" All Setting( Not include calibration)" and enter. d. Avoid the worse of trouble during the repair. 1.3 Judgment and Repair Judge the status of the trouble a