Terminal board cover and picture tube device using the same

Details Terminal board cover and picture tube device using the same Terminal board cover and picture tube device using the same

1997-12-02

1999-07-06

O'Shea, Sandra

Electric lamp and discharge devices

Cathode ray tube

Beam deflecting means

H01J 2970

Patent

active

059201495

ABSTRACT:
A picture tube device comprises a CRT and a deflection yoke having a terminal board cover, wherein an adjustment tool is not completely extracted from through holes and can be smoothly shifted between through holes, and the position of another through hole can be confirmed and determined without visual confirmation, so that the position among the through holes can be easily determined. A correction circuit comprising variable resistors for correcting misconvergence is employed on a printed board installed on the deflection yoke. The printed board is covered with a terminal board cover made of insulating material and through holes for inserting an adjustment tool for adjusting the adjustment areas of the variable resistors are formed in the terminal board cover. The through holes are connected to each other with guiding grooves.

REFERENCES:
patent: 3629750 (1971-12-01), Nienaber
patent: 3783424 (1974-01-01), Torsch
patent: 5075590 (1991-12-01), Lee
patent: 5798606 (1998-08-01), Koga et al.

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