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Diagnostic Troubleshooting
CSA 803A Service Manual
6Ć85
" (blank) This status indicates that the test requires action from
the user (such as the front panel verification tests), or
that the test is for stimulus only (such as the manual
calibration tests). This status does not provide failure
status. To execute this test, select it individually.
????" This status indicates that an option was found that was
not present in the current instrument configuration or
that a subsystem was found that did not have a workĆ
ing communication path.
H Failure Count field Ċ indicates the total number of routine failures (one
per routine) currently encountered in the Subsystem, Block, or Area.
Thus, the Failure Count will never be more than the total number of
routines in the subsystem. If no tests have been executed or no failures
have occurred, then this field is blank. Since the failure count field is an
indication of all routines that have failures, it is possible to have a failure
field count greater than the loop count (for example, there may be five
routine failures after the first loop).
A field display of 65535+ indicates that the Failure Count field has gone
beyond 65534 and that an overflow condition has occurred.
The following field descriptions apply only to Routine menus.
H Test Results fields Ċ contain information useful for troubleshooting.
One of the following formats is used:
H test address, expected data, and actual data
H expected data lower bound (minimum), expected data upper bound
(maximum) and actual data
Diagnostic Menu Hardcopy
Press the hardcopy button on the front panel to make hardcopy of a diagĆ
nostic menu. The hardcopy is sent to a printer attached to the PRINTER
port. Screen hardcopies can also be obtained from other menus (for examĆ
ple, help menus, interactive test menus, and hardware debugger menus).
After a hardcopy is output, a Form Feed is issued to the printer. If no printer
is attached or the printer can not print (for example, if the printer is off line or
if the printer is out of paper,) then the following warning is shown in the
Input/Prompt area:
Hardcopy absent or off line.
The hardcopy function is unavailable for some tests requiring human interĆ
action, such as touch panel interactive tests, various display tests, and
CRT/touch panel calibration patterns.
The knobs control the screen intensity during the four main diagnostics
menu levels. The TOUCH PANEL ON/OFF button enables/disables the touch
panel from responding to user touches.