H - Electricity – 01 – J
Patent
H - Electricity
01
J
350/1
H01J 29/56 (2006.01) H04N 3/237 (2006.01)
Patent
CA 1108286
A CIRCUIT FOR CORRECTING SETUP ERROR IN A COLOR TELEVISION RECEIVER Abstract Of The Invention A horizontal deflection circuit of a color television receiver includes a horizontal output transformer with a secondary winding across which a voltage is developed and includes a horizontal deflection winding coupled to a pincushion correction winding of a pincushion reactor. In response to the current flowing in the vertical deflection winding, the inductance of the pincushion correction winding varies in a manner providing for East-West pincushion distortion correction. For setup, in the service mode of operation, the vertical deflection circuit is disabled. A circuit, coupled to the pincushion reactor, adjusts the inductance of pincushion correction winding to compensate for a change in the inductance caused by disabling of the vertical deflection circuit for maintaining the voltage across the horizontal output transformer secondary winding substantially unchanged during setup.
296295
Morneau Roland L.
Rca Corporation
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