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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
255
^mmÊHÊÊÊÊ'
m
-y,
^Ψ^Φ*
Figure 6.40. IBM PC-XT power supply filter and fuse assembly
Figure
6.41.
Using
a
logic probe to check CPU signals in an IBM PC-XT
256 Servicing Personal Computers
Tables 6.14 to 6.16 give typical resistance and voltage indications measured at the system
board power connector and fixed disk connector of the PC-XT (see Figures 6.35 and 6.36
respectively).
Readers experienced with servicing the original PC and PC-XT will have little trouble
adapting to the PC-AT. The AT employs an 80286 microprocessor (U74) and 80287
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Publisher Resources

ISBN: 9781483193670