Control of operation of a television receiver by monitoring operational parameters to warn of life affecting conditions

摘要

The system has temperature sensor (1) providing input to a controller (4) together with the output from a processor (2) using reference temperature data (12). Information relating to the operation of the television that affects life is provided as output from a loudspeaker (19) coupled to an alarm stage (3). Critical conditions result in shut down of the screen controller (16) and the audio output stage (17).