Test fixture with self contained shorting means for testing small scale test packs
First Claim
1. A translator fixture for a printed circuit board tester of the type having a pattern of test probes on a base upon which the translator fixture is mounted, the translator fixture comprising:
- a first translator fixture having a plurality of essentially parallel and vertically spaced apart rigid translator plates supported in a fixed position and having selected patterns of holes aligned in the translator plates for containing and supporting translator pins extending through the translator plates and positioning the translator pins for contacting test points on a first side of a printed circuit board supported in an essentially horizontal position at one end of the first translator fixture, the pins translating electrical test signals between the test points on the printed circuit board and the test probes on the base of the tester; and
a second translator fixture having a plurality of essentially parallel and vertically spaced apart rigid translator plates supported in a fixed position and a retractable shorting plate located within the second translator fixture and extendable through a top plate of the second translator fixture for being pressed into shorting contact with designated test packs on a second side of the printed circuit board.
1 Assignment
0 Petitions
Accused Products
Abstract
A printed circuit board tester has a pattern of test probes on a base upon which a translator fixture is mounted. The translator fixture includes a plurality of essentially parallel and vertically spaced apart rigid translator plates having selected patterns of holes containing translator pins for contacting test points on a printed circuit board supported at one end of the translator fixture. The pins translate electrical test signals between test points on the printed circuit board and the test probes on the base of the tester. The fixture includes a retractable shorting plate extending through a top plate of the fixture capable of being pressed into shorting contact with small scale test packs on the printed circuit board, preferably by a pneumatic cylinder position within the fixture. A base receptacle is rigidly secured to a base plate of the fixture for releasably attaching the cylinder within the fixture. The shorting plate includes a layer of conductive rubber for shorting the test pads within the test pack.
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Citations
12 Claims
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1. A translator fixture for a printed circuit board tester of the type having a pattern of test probes on a base upon which the translator fixture is mounted, the translator fixture comprising:
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a first translator fixture having a plurality of essentially parallel and vertically spaced apart rigid translator plates supported in a fixed position and having selected patterns of holes aligned in the translator plates for containing and supporting translator pins extending through the translator plates and positioning the translator pins for contacting test points on a first side of a printed circuit board supported in an essentially horizontal position at one end of the first translator fixture, the pins translating electrical test signals between the test points on the printed circuit board and the test probes on the base of the tester; and a second translator fixture having a plurality of essentially parallel and vertically spaced apart rigid translator plates supported in a fixed position and a retractable shorting plate located within the second translator fixture and extendable through a top plate of the second translator fixture for being pressed into shorting contact with designated test packs on a second side of the printed circuit board. - View Dependent Claims (2, 3, 4, 5, 6, 7, 8, 9, 10, 11, 12)
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Specification