| 摘要 |
PURPOSE: A coma free apparatus of a deflection yoke is to provide a power by having a coil of a magnetic piece in a circuit board through a guide piece built in a rear cover as one body and a guide groove formed by the guide piece, and to reduce a manufacturing cost by having the guide piece built in the rear cover as one body. CONSTITUTION: A coma free apparatus of a deflection yoke comprises a coil separator, horizontal and vertical deflection coil, a magnetic piece(40), a circuit board and a guiding element(100). The coil separator further comprises a screen unit, a rear cover(12) and a neck unit. The screen unit is coupled to a screen surface of a cathode ray tube. The neck unit is extended from a central surface of the rear cover to be connected to an electron gun part of the cathode ray tube. The horizontal and vertical deflection coils form horizontal and vertical deflection magnetic fields, established on internal/external surfaces of the coil separator. The magnetic piece wound with a coil(41) corrects a mis-convergence on a screen, established to face each other on the rear cover of the coil separator with a neck part as a center. The circuit board is established at a side surface of the coil separator and is positioned to supply a power to the magnetic piece. The guiding element guides the coil of the magnetic piece to the circuit board, established on the rear cover adjacent to the circuit board as one body.
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