| 摘要 |
PURPOSE:To bring the screen to a normal state at application of power again by switching a control value of the last memory to a reference control value when the control value of each controlled system is changed into the reference control value respectively by the normalized operation to disconnect power. CONSTITUTION:A television receiver consists of an image receiving circuit 1 and a microcomputer 2 controlling it. A tuner 3 is selected from the microcomputer 2 via a channel circuit 4 of the PLL system. A video output circuit 6 and a sound output circuit 7 receive an analog control signal relating to the video and sound volume from the microcomputer 2. A ROM11 includes the reference control value of various controlled systems. A RAM12 and a memory 13 stores the control value before the power is disconnected. An analog controller 22 has an up-down counter and a D/A converter corresponding to the various controlled systems and each controlled system is controlled to a control value as the count value through the operation of the remote controller 15. |
