Tektronix DSA8300, Service Manual

Page: 95 / 138

Removal and Installation
3. Connect one end of a GPIB cable to the GPIB port of the instrument. Connect
the other end of the cable to the GPIB port of a PC.
CAUTION.
For the next step, make sure that you do not have any user interface
dialogs active. Dialogs such as Compensation, System properties will prevent the
instrument from responding to GPIB commands.
5. Enter the following GPIB commands to program the serial number (printed
on the sampling module cover) into the replacement sampling module chassis:
a.
SYSTem:PROTect OFF
b.
SYSTem:PROPerties:CH(1-8):SERialnum <serialNum_string>
Example:
SYST:PROP:CH3:SER "B010123"
NOTE. For a 2-channel sampling module, either channel can be speci fi ed in
step b. For an 80E01 sampling module, use only the lower numbered channel
number, such as CH1 or CH3.
c.
SYSTem:PROTect ON
6. Verify the serial number change: Pull down the Utility menu, and then select
System Properties, Sampling Modules. Click the channel you want to
verify, such as C3 or C4. This display will con fi rm the sampling module
serial number.
7. Run compensation from the Utilities menu to verify that the instrument meets
its accuracy speci
fi cations.
DSA8300 Digital Serial Analyzer and Modules Service Manual 4–47