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Essential safety measures to be observed during servicing procedures.
Conformity to product regulations and maintaining a safe servicing environment.
Guidelines and precautions for using lead-free solder and soldering irons.
Identification of high-voltage areas and charged sections for safety during service.
Overview of the Service Factory Mode functions and transition chart.
Methods for accessing and exiting the Service Factory Mode using remote control or RS-232C.
Detailed table showing the structure of Factory menu items, their context, and RS-232C commands.
Essential checks to ensure product quality and safety after repair completion.
Steps for performing adjustments and settings in Factory mode after replacing major assemblies.
Block diagram of the power supply unit, showing primary and secondary sections and voltage outputs.
Information on LED patterns for various operating states of the power supply.
Block diagram illustrating the sequence of operations during unit power-on.
Detailed explanation of power supply status during AC off, standby, and main switch off states.
Flowchart for diagnosing failures across the entire television unit.
Flowchart for diagnosing failures across the entire television unit.
Flowchart for diagnosing failures specifically within the Power Supply Unit.
Flowchart for diagnosing failures within the X/Y DRIVE ASSYS, panel FPC, and SCAN ASSYS.
Flowchart for diagnosing failures within the DIGITAL Assy, checking sync signals and FFC cables.
Flowchart for diagnosing failures within the MAIN Assy, checking STB LED, power switch, and voltage outputs.
Flowchart for diagnosing issues related to video signal input and display.
Flowchart for diagnosing issues related to audio output from speakers and headphones.
Diagnosis procedures for power-down issues.
Block diagram illustrating the power-down signal path from various assemblies to the module microcomputer.
Table detailing failure symptoms, PD outlines, checkpoints, and possible defective parts for power-down.
Diagnosis procedures for shutdown issues.
Block diagram showing the shutdown signal paths from various modules to the microcomputer.
Table detailing shutdown causes, LED flashing, checkpoints, and possible defective parts.
Checks for proper operation of HDMI Control (CEC) function, including connections and settings.
Menu screen for panel adjustment, data acquisition, and value adjustment.
Visual chart showing the recommended order for removing main parts and boards.
Detailed procedure for exchanging the SCAN IC, including removal of associated parts.
Guidelines on when adjustments are required after replacing major assemblies.
Procedure for adjusting time lag of SUS-U and SUS-B gate signals.
Command to acquire panel status information, including version and destination data.
Command to acquire panel operation data, including notification, flags, temperature, and mask indications.
Command to acquire panel factory-preset data for adjustment values.
Command to acquire factory-preset video adjustment data, including drive sequence and gamma settings.
Command to acquire data from the 8 latest power-down (PD) logs.
Command to acquire data from the 8 latest shutdown (SD) logs.
Command to acquire MTB-side shutdown information, including NG numbers and cause of shutdown.
Command for ON/OFF control of panel drive-power system.
Commands related to backing up adjustment values and managing data copy status.
General