Service switch for video display apparatus

Details Service switch for video display apparatus Service switch for video display apparatus

1986-05-12

1988-03-15

Blum, Theodore M.

Electric lamp and discharge devices: systems

Cathode ray tube circuits

Cathode-ray deflections circuits

358 10, H01J 2970, H01J 2976

Patent

active

047315644

ABSTRACT:
A vertical deflection circuit for a video display apparatus includes a service switch that collapses vertical or field rate scan in order to facilitate adjustment of cathodes ray tube electron beam drive levels. The service switch operates by referencing the vertical sawtooth signal generator, the AC feedback, and the DC feedback to ground potential so that no input is applied to the vertical drive circuitry.

REFERENCES:
patent: 3114796 (1963-12-01), Stark, Jr. et al.
patent: 4272777 (1981-06-01), Fitzgerald
patent: 4484111 (1984-11-01), McMorrow, Jr. et al.
CTC 85 Color Chassis Tech Manual Circuit Diagram, 1977.
CTC 136 Color TV Basic Service Data Circuit Diagram, 1986.

Affiliated with

Also associated with

Rating

Service switch for video display apparatus does not yet have a rating. At this time, there are no reviews or comments for this patent.

If you have personal experience with Service switch for video display apparatus, we encourage you to share that experience with our LandOfFree.com community. Your opinion is very important and Service switch for video display apparatus will most certainly appreciate the feedback.

Rate now

Comments { 0 }

Profile ID: LFUS-PAI-O-1928029