| 摘要 |
PROBLEM TO BE SOLVED: To reduce the time till an image is outputted by detecting a voltage rise of a power supply of a SW transformer secondary side when a SW of a television receiver is closed to control the timing of power supply to each circuit and of data communication thereby surely and accurately preventing malfunction of each circuit and destruction of components. SOLUTION: A voltage detection circuit 6 detects a voltage rise at a secondary side of a SW transformer when a power SW is closed and gives the detected voltage to a microcomputer 8. The microcomputer 8 gives an ON signal to a constant voltage circuit 7 when the microcomputer 8 detects a voltage required for the constant voltage circuit 7, which applies a voltage to a deflection control circuit 9. After the deflection control circuit 9 receives the required voltage, the microcomputer 8 starts data communication to the deflection control circuit 9. Then the microcomputer 8 gives the ON signal to a high voltage on/off circuit 11, which applies a high voltage to a deflection output circuit 12. |
