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Browse Prior Art Database

Universal Test Fixture

IP.com Disclosure Number: IPCOM000114508D
Original Publication Date: 1994-Apr-01
Included in the Prior Art Database: 2005-Mar-28
Document File: 2 page(s) / 48K

Publishing Venue

IBM

Related People

Carini, RP: AUTHOR [+5]

Abstract

The article describes a test fixture designed to be used by engineers for the purpose of debugging printed circuit cards and product systems.

This text was extracted from an ASCII text file.
This is the abbreviated version, containing approximately 94% of the total text.

Universal Test Fixture

      The article describes a test fixture designed to be used by
engineers for the purpose of debugging printed circuit cards and
product systems.

      Referring to the Figure, the fixture has been designed with
three bays (1).  Each bay is able to hold a printed circuit card up
to a dimension of 12 inches X 15 inches.  A different size card may
be held in each bay simultaneously by use of the independent
adjustable card clamps (2).  Smaller multiple cards of equal size may
be held in a single bay.  After the initial adjustment, cards may
slide in or out for removal or insertion with no additional
adjustments.

      An existing product power supply (3) provides 5 and 12 volts of
power to voltage regulator card (4).  This voltage regulator card can
be modified and/or adjusted to provide a range of voltages to meet
the card requirements.  The power supply also provides power to two
cooling fans (5), which direct air flow towards the cards for
cooling.  A 9-volt battery (6) provides a signal to power the
interlock on the power supply, and the start switch (7) mounted on
the voltage regulator card is used to activate the system.

      The above-described test fixture components are mounted on an
aluminum base (8), measuring 18" X 30".  The overall height is 19.5".
This height allows the unit to be slid under the upper shelf of a
standard lab bench while resting on the primary wore surface.

      A number of these test fix...