Abstract: An electrical junction box has a switch connected between a first connection terminal and a second connection terminal to which a fuse is mounted, and a control circuit configured to perform opening/closing control of the switch, has a storage unit for storing a standard resistance value in an initial state of the fuse and an amount of change in a resistance value of the fuse over time, and detects a first terminal voltage at the first connection terminal and a second terminal voltage at the second connection terminal. The control circuit opens the switch at a time of startup based on a control signal, calculates the resistance value of the fuse, calculates a reference resistance value, determines whether the fuse is correct by comparing the calculated resistance value of the fuse with the calculated reference resistance value, and outputs a first error signal if the fuse is incorrect.

Abstract: An electrical junction box has a switch connected between a first connection terminal and a second connection terminal to which a fuse is mounted, and a control circuit configured to perform opening/closing control of the switch, has a storage unit for storing a standard resistance value in an initial state of the fuse and an amount of change in a resistance value of the fuse over time, and detects a first terminal voltage at the first connection terminal and a second terminal voltage at the second connection terminal. The control circuit opens the switch at a time of startup based on a control signal, calculates the resistance value of the fuse, calculates a reference resistance value, determines whether the fuse is correct by comparing the calculated resistance value of the fuse with the calculated reference resistance value, and outputs a first error signal if the fuse is incorrect.

Abstract: A branch connector located at a position where a branch line is connectedly branched from a main line constituting a communication circuit, comprising: inside a connector housing thereof, one or a plurality of bus bars each having a joint part long and narrow and a plurality of electric wire connection terminal parts projected by spacing said electric wire connection terminal parts at a certain interval from said joint part in a longitudinal direction thereof; a plurality of cylindrical insulation parts each having a hollow portion through which one of said electric wire connection terminal parts is inserted; and a plurality of filter materials each of which is made of a conductive magnetic material and fitted on one of said cylindrical insulation parts to prevent each of said filter materials and said corresponding electric wire connection terminal part from contacting each other.

Abstract: A branch connector located at a position where a branch line is connectedly branched from a main line constituting a communication circuit, comprising: inside a connector housing thereof, one or a plurality of bus bars each having a joint part long and narrow and a plurality of electric wire connection terminal parts projected by spacing said electric wire connection terminal parts at a certain interval from said joint part in a longitudinal direction thereof; a plurality of cylindrical insulation parts each having a hollow portion through which one of said electric wire connection terminal parts is inserted; and a plurality of filter materials each of which is made of a conductive magnetic material and fitted on one of said cylindrical insulation parts to prevent each of said filter materials and said corresponding electric wire connection terminal part from contacting each other.

Abstract: Side, or left and right pin-cushion distortions in the raster of a cathode ray tube, for example, of a color television receiver having an in-line arrangement of its electron beams, are corrected by connecting the horizontal deflection winding of the cathode ray tube, the collector-emitter path of a transistor and the output winding of a saturable reactor, in series, to a power supply source, and by applying to the base or control electrode of the transistor and to the input winding of the saturable reactor a correction signal having a parabolic waveform of the vertical scanning rate or frequency so that correction of the side pin-cushion distortions is effected satisfactorily at all portions of the raster.