Daniel J Voss

US Patent:

48354694, May 30, 1989

Filed:

Jul 24, 1987

Appl. No.:

7/077648

Inventors:

Wayne R. Jones - Alderwood Manor WA
Daniel J. Voss - Seattle WA

Assignee:

John Fluke Mfg. Co., Inc. - Everett WA

International Classification:

G01R 104
G01R 106

US Classification:

324158F

Abstract:

In a system for troubleshooting a unit containing microprocessor-based digital circuitry including a bus, wherein the system includes a digital test apparatus that emulates the microprocessor of the unit to test components on the bus and a device for interfacing signals between the test apparatus and the microprocessor comprises a clip that mounts to the microprocessor in electrical contact with the microprocessor leads. The clip preferably is of a type adapted to attach resiliently to the leads of all four sides of a soldered-in microprocessor in a leaded chip carrier housing. A connector to couple the clip to the test apparatus through a wire harness is mounted on a printed circuit board carrying pins corresponding to the lines of the microprocessor bus and the clip, and cables extending from the circuit board to the clip are coupled to the pins of the circuit board and clip by push connectors. A rod interconnecting the clip and the circuit board maintains the distance between the clip and circuit board fixed to prevent the push connectors from "backing off" the pins as the clip is manually operated. A pair of "flying leads", extending from the circuit board, carries probes that clip to terminals of the unit under test.

US Patent:

D3184560, Jul 23, 1991

Filed:

Jul 24, 1987

Appl. No.:

7/077778

Inventors:

Wayne R. Jones - Aldrewood Manor WA
Daniel J. Voss - Seattle WA

Assignee:

John Fluke Mfg. Co., Inc. - Everett WA

US Classification:

D13146