AUTOVOX TVC 2279 "ANTARES" INTERNAL CHASSIS AND TUBE VIEW.

Internal Chassis and Tube View.
Fully "Modular" chassis, heavy robust. TELEVISION SET CHASSIS HAVING VERTICAL PLUG IN CIRCUIT BOARDS .

 A color television set chassis extending across the rear edge of the set and containing plug-in circuit boards orientated in a vertical plane and extending in a front to rear direction. The boards are inserted and removed from the rear and plug into an interconnecting board across the front of the chassis, with controls on the boards projecting through the rear cover of the set. The chassis is open at its top and bottom for ventilation. The tuner assembly is located at one side of the chassis, and the boards contain components arranged in a specific order which both separates the functions as between the boards and also simplifies the wiring needed.

 This invention relates to television sets, and more particularly, it relates to an improved chassis arrangement which facilitates manufacture and servicing of television sets, particularly color television sets.

Television sets, particularly color sets, normally contain a large number of circuits and components. In the past, these circuits with their components have usually been mounted on one large horizontally oriented chassis fastened to the frame of the television set, with connecting wires extending to the various parts of the chassis, the tuner, to the picture tube, and to the various controls. Servicing of such sets has been difficult since removal of the entire chassis is required if probing of connections in cramped quarters is to be avoided. In addition, cooling of the components has not been uniform. Because of this, attempts have been made to mount many of the components on individual circuit boards so that they can more easily be removed for servicing. However, the arrangements adopted in the past for the circuit boards has been generally unsatisfactory, since it has still been difficult to remove the circuit boards for testing, and since the circuit boards have not been laid out in a manner that would permit uniform cooling. In addition, the prior art attempts have not facilitated an efficient wiring scheme for the sets.


 In a color television set, a frame having front and rear edges and means adapted to support a picture tube with the screen of said picture tube adjacent the front edge of said frame, said frame further including means to support a tuner assembly adjacent said front edge of said frame; and an elongated component chassis mounted on said frame adjacent the rear edge of said frame, said chassis containing a plurality of plug-in circuit boards, and glide means for supporting said circuit boards in a substantially vertical orientation for sliding movement frontwardly and rearwardly, said boards being spaced horizontally one from the other and extending in a front to rear direction, an interconnecting board at the front of said chassis, cooperating plug and socket means on said circuit boards and on said interconnecting board to permit said circuit boards to be plugged into said interconnecting board, the rear of said chassis being open so that said circuit boards may be moved into and removed from said chassis from the rear, the rear part of said frame and the bottom and top of said chassis having openings therein to permit air circulation upwardly past the components on said circuit boards; here generally described a first of said circuit boards containing a low-voltage power supply circuit, a second of said circuit boards containing an intermediate frequency and detector circuit for providing a picture signal from a received signal, a third of said circuit boards containing a color demodulator and control circuit for providing color signals from said video signal, a fourth of said circuit boards containing a color signal amplifying circuit for amplifying said color signals and a video amplifier for amplifying said picture signal without its color components, a fifth of said circuit boards containing a vertical deflection circuit responsive to said synch pulses for providing a vertical deflection signal, a sixth of said circuit boards containing a pincushion correction circuit and a color bias adjustment circuit for providing pincushion correction and bias adjustment, a seventh of said circuit boards containing a horizontal deflection circuit for providing a horizontal deflection signal, and an eighth of said circuit boards containing a high-voltage power supply circuit, said tuner assembly being located at one side of said set, said chassis having a first side adjacent said one side of said set and a second side adjacent to the other side of said set, said first circuit board being located adjacent said first side of said chassis, said eighth circuit board being located adjacent said second side of said chassis, and the remaining circuit boards being arranged in numerical order between said first and eighth circuit boards.

Accordingly, it is an object of the present invention to provide a television set chassis which extends across an edge of the set and which has individual plug-in circuit boards vertically oriented and which may be plugged in and removed from one side of the set, preferably the rear side. In a preferred embodiment, most of the components of the set are mounted on the circuit boards and the circuit boards are arranged in a specific order to make possible an efficient wiring pattern.