Power can search and adjustment , indicating normal function of the bus system , shut down after the previous state of the stored program and adjust the disappearance is not obvious memory phenomenon , mainly internal and external memory circuit fault . Check the machine's microprocessor IC1213 28,29 feet attached memory IC1211, its power supply and bus voltage are normal , it is estimated that the internal circuit failure . The machine has a fault detection information display , in order to further define the scope of failure , out of self-test information check : Press sleep timer button (OFF TIMER) on the remote control and volume - buttons , the TV enters the POST, the screen the self-diagnosis information , in which the display memory for "NVM ---", "NVM" said memory " --- " indicates not normal ( if it is "OK" is normal ) . Replacing an empty memory after the same model must be initialized , the data written to the machine 's microprocessor memory in order to enter the normal working condition. Method is: shut down, the test point 3 feet microprocessor peripheral TP14 grounding , the boot memory microprocessor that automatically initialized after initialization state into the normal viewing of the state to observe, if not satisfied, can enter the maintenance adjustment of status , are not satisfied with the items for individual adjustments . After these aircraft replacement and initialization , restore normal troubleshooting .aCQservice manual download site