A method for error detection in a quick and accurate inspection of the television receiver fault , the system must be understood that the order of inspection and measuring instruments utilized ( such as multimeters, voltage meters, oscilloscopes , etc. ) , is particularly important utilization multimeter. In order to prepare high efficiency troubleshooting , usually in the following order: careful attention to changes in image and sound , etc. , adjust various knobs, nicely confirmed by image and sound performance out of the failure symptoms. Analyzing the fault determining circuit or component. According to fault diagnosis procedure diagram , with the measuring instruments used for inspection , tracking location of the fault . Replace the faulty parts , confirm their normal work , and finally must confirm the scope of work of each knob is normal.jPLservice manual download site