Shutdown of the instantaneous voltage measuring microprocessors 6 foot, instantly appear high level, judgment is a fracture in the microprocessor protection phenomenon. Analysis is the component thermal stability is poor, some time after heated, cause over-current failure, resulting in protection circuit starts. Detection line output and convergence circuit current, did not see growth phenomenon; Judge fault in high voltage protection circuit and the beam current protection circuit. With electric heating high pressure protection circuit element and beam current protection circuit, when the heating D1583, immediately into the protection state of the television, judge D1583 voltage value is smaller. After replacing D1583, automatic shutdown troubleshooting.RMdservice manual download site