B&K Precision 570A - Manual - Manual (Page 11)

Model 570A Linear IC Tester
Copyright
 1993-2007 B&K Precision Corp.
effect of this is usually unnoticeable, but where the test takes a
reasonable time to execute there will be a delay before the
instrument responds to the MODE/CLEAR key.
Note: Testing high current ICs in loop mode w ill drain the
batteries quickly, and it is recommended that a battery eliminator
is used if you w ish to perform loop tests.
11. search mode
This feature allows the type number of an unknown IC to be
determined, provided the IC is actually contained in the B & K
Model 570A library, and it is a correctly functioning IC. This facility
is useful when the IC type number is illegible or has been removed.
Use the MODE/CLEAR key to choose SEARCH mode, insert the
unknown IC into the socket and press the TEST/EXEC key. You will
be prompted to choose the number of pins of the IC you wish to
identify - use the MODE/CLEAR key to select from 3 to 16 pins or
'QUIT' to abandon this mode. Press the TEST/EXEC key again to
start the SEARCH or to quit as required.
During the identification process the display will indicate the
number of ICs identified (IDENT:) and will show graphically how far
through the library the SEARCH has progressed. At the end of the
SEARCH, a list of all the similar ICs will be scrolled onto the display.
The list may be scrolled again by pressing the TEST/EXEC key.
If the IC cannot be identified the message "Not in Library" will be
displayed. This means either that the IC is not in the library or it is
non-functional.
Note that if the B & K Model 570A detects
excessive supply current (ICC! or BAT! warnings), the IC will not be
identified during the SEARCH, but can still be tested in SINGLE
mode.
If you have a user library present the search will extend to user ICs in
that library also.
However, CompactLink contains a facility for
excluding ICs from the search if required.