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SECTION 1. REFERENCE DATA
None available as of November 1966.
SECTION 2. DIAGNOSTIC TECHNIQUES
1. 1 DIAGNOSTIC PROGRAMS
A major portion of analysis of machine malfunctions
is accomplished through the use of diagnostic pro-
grams furnished with the using system. These pro-
grams are designed to test and check as completely
as possible the data paths and control lines to and
from the 1132, as well as timing relationships,
mechanical adjustments, and I/O interaction. The
documentation with each program contains a more
complete description of the program and its use.
1. 1. 1 Manual Program Control
Manual control of the maintenance program in the
using system is provided as follows:
1.
Stop or continue on error.
2.
Loop program, loop routine, or loop function.
3.
Bypass or allow error typeout.
4.
Bypass or allow programmed manual inter-
vention requests.
1.1. 2 Error Messages and Documentation
The
foll~wing
items are included in either the error
messages or program documentation or both.
1.
The location in the program of the failing rou-
tine or function.
2.
The cause of the program halt or error
message.
3.
The function or functions that failed.
4.
Instructions for obtaining a detailed error print
out which will give either cumulative error
statistics or a comparison of the actual results
to the expected results.
CHAPTER
1.
REFERENCE DA TA AND SERVICE AIDS
1.1. 3 Analysis of Error Indications
After all possible information concerning the error
has been obtained, if the cause is not obvious, try
to duplicate the condition with the 1132 printer off-
line.
If
the error can be diagnosed and corrected
off-line, the system is available to the customer
for programs not calling for 1132 printed output.
Verification of any repair, however, should be on-
line using the program or programs which failed.
1. 2 MARGINAL CHECKING
Although there is no provision in the 1132 printer
for marginal checking, signals to and from the 1132
are affected by varying the voltages in the using
system. This procedure can be an effective means
of increasing the frequency of intermittent troubles,
though occasionally some other error is caused and
this fact should be recognized. The maintenan~e
manual for the using system should be checked for
allowable voltage variations.
1. 3 VOLTAGE CHECKING
All power for the 1132 is supplied by the using
system. Always be sure that de voltages are at
operating levels within the 1132 (see 5. 1).
1. 4 OFF-LINE SERVICING PROCEDURES
These checks can be made off-line, using trouble
~ndications
to determine which checks should be
made.
NOTE: Logic voltages are present when the CPU
is turned on.
1. 4. 2 Printer Exit Lines
All printer exit line voltages and signals can be
scoped off-line.
1132 FEMM (12/66)
1-1
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