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Servicing Personal Computers, 3rd Edition
book

Servicing Personal Computers, 3rd Edition

by Michael Tooley
May 2014
Intermediate to advanced content levelIntermediate to advanced
320 pages
13h 41m
English
Newnes
Content preview from Servicing Personal Computers, 3rd Edition
91
Logic 1
(a)
Logic 1
(d)
Logic 1
(e)
(f)
(9)
Figure 2.16. Method of checking a J-K bistable using a logic probe and logic puiser
92 Servicing Personal Computers
however, no need to cut the PCB tracks if a current tracer is available. Such an instrument can
measure, to a reasonable approximation, the current flowing in standard size PCB tracks
without the need to break the circuit.
Two forms of current tracer are available; one operates by sensing the magnetic field in the
vicinity of the track and the other measures the voltage drop across
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Publisher Resources

ISBN: 9781483193670