23 is vector composed on the signal s 33 modulated by the signal s 46 to vary the phase of the burst signal s b in this case even though the phase of the burst signal s b is varied within the range of for example u00b1 15 u00b0 the level variation of the burst signal s b is 1 cos 15 u00b0 u2245 1 035 and hence this level variation can be neglected according to the present invention as set forth above at the same time when the color difference signals s b and s r are converted to the carrier chrominance signal s c the hue can be corrected or controlled especially with the present invention since the pulse signals s 23 and s 46 are respectively added to the color difference signals s b and s r to produce the burst signal s b it is unnecessary to provide the modulator and the phase shifter to produce the burst signal s b further according to the invention the correcting amount of the hue can be adjusted by varying the polarity and level of the voltage e 43 in this case since the voltage e 43 is merely a dc voltage the variable resistor 43 which sets the voltage e 43 can be easily provided on an operation panel thus the operation for the variable resistor 43 becomes convenient there is no fear that the voltage e 43 interferes with the other signals in addition with the present invention if the switch 44 is changed to the position opposite to that shown.