Agilent Technologies 8935 Series, Руководство пользователя

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Chapter 3 73
Troubleshooting
Frequently Encountered Diagnostic Messages
Frequently Encountered Diagnostic Messages
Warning/Error Messages
Error messages that appear on the second line of the Test Set’s display
frequently occur while any of the SERVICE4 program diagnostic tests
are running. The most complete and general list of error messages is in
the
“Error Messages
” chapter of the Test Set’s Reference Guide. (Some
messages relating specifically to troubleshooting can be found in
Appendix A , “Error Messages,” on page 321 .) Some of the messages you
can expect to occur while running the SERVICE4 program diagnostic
tests are as follows:
•
Direct latch write occurred. Cycle power when done
servicing.
The SERVICE4 program commonly generates this
message. This message appears the first time the diagnostic
program directly addresses a latch. The message should be ignored
and cleared when you make a normal (not a diagnostic)
measurement with the Test Set. To clear this message the Test Set
should be turned off and back on again.
•
Change Ref Level, Input Port or Attenuator (if using
“Hold”).
This message, and similar messages, can be generally
ignored.
•
Printer does not respond.
This usually indicates that one or
more settings on the TESTS (Printer Setup) screen are set
incorrectly for your printer. Also, check that the printer’s power is on
and that it is correctly cabled. For GPIB printers make sure the
printer is correctly addressed. If a serial printer is used, you may
have to change the serial communication settings on the I/O
CONFIGURE screen (press
Shift
then
Inst Config
to get to this
screen). The message times out after a few seconds, and the output
destination is changed to CRT by the program.
•
ERROR 173 IN XXXX Active/system controller req’d
(where
”XXXX”
represents a line number). Indicates that the Test Set’s
internal IBASIC computer must be set as a system controller for
some reason. This usually indicates that the
Printer Port
field of
the TESTS (Printer Setup) screen was set to
HP-IB
but the
Mode
field
on the I/O CONFIGURE screen is set to
Talk&Lstn
instead of
Control
. Change the mode setting to
Control
and run the
diagnostic again.