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THS710A, THS720A, THS730A & THS720P User Manual
3–25
Troubleshooting RS-232 Problems
If the TekScope instrument and the personal computer or printer
have trouble communicating, use the following steps to correct the
problem:
H Verify that you are using the correct RS-232 cable and adapters.
Determine whether your configuration requires a null-modem
connection (where transmit/receive and control lines are
switched) or a straight-through RS-232 connection.
H Verify that the RS-232 cable and adapters are firmly connected to
both the TekScope instrument and the correct port on your
personal computer or printer. Verify that your printer or the
program on the personal computer is using the correct port. Try
your program or printer again.
H Verify that the TekScope instrument settings match the settings
used by your printer or the program on your personal computer.
Start by choosing Set RS-232 Parameters to Defaults (in the
RS-232 System of the Utility menu). Then, change only those
menu items that you know need to be changed, such as the baud
rate. Try your printer or computer program again.
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