IBM 6580 User Manual

C.E. Diagnostic.
CED201
Insert desired program diskette. press ENTER: E
Memory xxxx
Kyb xxx
Figure 9-33. Load Program Function
Display
MAINTENANCE ANALYSIS PROCE-
DURES (MAPS)
The MAPs include directions for the
following activities: Start of Call,
Power Distribution, IPL failures,
repair action verification (which is
system entry), and other procedures
not suitable for MDIs.
The System Entry MAP is a
symptom-oriented hard-copy MAP that
identifies an entry point into the
MAPs or MDIs. This entry point will
shorten the number of steps needed to
diagnose a failure. Data gathering
such as interpreting the state of
LEDs, making meter readings, using
resident diagnostic programs, and per-
forming a system dump will be directed
by the System Entry MAP. The System
Entry MAP should be used on all calls.
MAP Format
Maintenance Analysis Procedures (MAPs)
are formatted to aid in isolating the
cause of a failure. MAPs are printed
charts that require answers to yes/no
questions. They indicate either
another step, another MAP, or an area
of the service manuals for repair
action. Figure 9-34 and Figure 9-35
are examples of MAP formatting.
• The MAP name is located in the
upper left-hand corner of the page
O·
• The number of pages in this MAP is
located under the MAP name G.
•
•
•
•
•
•
•
•
The MAP. number is located in the
upper and lower right-hand corners
of the pages 0 .
The Entry Points chart shows which
MAP's step are referred to this
MAP O.
The Exit Points chart indicates to
which MAP the current MAP may
direct the user G.
MAP entry procedures are listed
above the first MAP question;
Entry Point A, Step 001. These
procedures describe the system set
up or the first test necessary to
start the MAP 0 .
MAP questions are written so they
may be answered yes (Y) or no (N).
The questions are charted by a
vertical line, or trace, located
under the Y and N 0, .
Reference information is always
contained in parenthesis O.
The on column/page connector indi-
cates the page of this MAP the
traces are continued from 0 .
The off column/page connector
gives the page number and column,
trace let, of the next step. If
no page number appears above a
trace, the trace continues at the
top of another column on that page
O·
Chapter 9. Diagnostics 9-35

IBM 6580 Specifications

General

Brand	IBM
Model	6580
Category	Desktop
Language	English