Suggested Emergency Maintenance Procedure; Before Leaving For Customer Site - Control Data Corporation CDC CC63X Hardware Maintenance Manual

• MOS Circuit Board Handling Precautions - describes special
procedures to be used when replacing MOS circuit boards. /
• Diagnostic and Corrective Maintenance Procedures - contain
SAM (structured analysis method) listings that provide
information for troubleshooting terminal malfunctions and
associated corrective maintenance procedures. Preceding
the listings and procedures is a description of the format
and use of the SAMs.
SUGGESTED EMERGENCY MAINTENANCE PROCEDURE
-The following procedure provides suggested steps for the CE to
follow when responding to a customer request for maintenance on
the terminal.
BEFORE LEAVING FOR CUSTOMER SITE
Before leaving for the customer site, contact the person
operating the terminal at-the time the malfunction occurred, and
then:
6-2
1. Determine the fOllowing:
a. The type of maintenance coverage on the customers
equipment; i.e., on-call or carry-in. (Check warranty
and shipping tag.)
b. Specific configuration of terminal; for example, does
it have an internal modem, additional RAM, and/or
interfaces?
c. Type of symptoms terminal exhibited to indicate that a
malfunction occurred.
\j
d. Whether terminal is operating and what symptoms, if
any; are present when an attempt is made to operate.
(Analyze diagnostics, loopbacks, etc.)
2. Determine a course of action, considering the following
suggestions:
a. If it becomes apparent that the terminal itself is not
at fault and, for example, it becomes likely that the
cause of problem is either communication lines or a
power loss, direct the customer to contact appropriate
maintenance personnel.
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