Performance Tests
TDS7104 & TDS7054 Service Manual
4-39
Equipment
required
Two dual-banana connectors (Item 5)
One BNC T connector (Item 6)
One DC calibration generator (Item 9)
Two precision 50 Ω coaxial cabl es (Item 4)
Prerequisites The instrument must meet the prerequisites listed on page 4--27
WARNING. The generator is capable of outputting dangerous voltages. Be sure to
set the DC calibration generator to off or 0 volts before connecting, disconnect-
ing, and/or moving the test hookup during the performance of this procedure.
Also, check that the calibrator does not have shorting s traps installed between
the DC output and Sense input or grounds.
1. Install the test hookup and preset the instrument controls:
a. Hook up the test-signal source:
H Set the output of a DC calibration generator to off or 0 volts.
H Connect the output of a DC calibration generator through a
dual-banana connector followed by a 50 Ω precision coaxial cable to
one side of a BNC T connector. See Figure 4--16.
H Connect the Sense input of the generator through a second dual-ba-
nana connector followed by a 50 Ω precision coaxial cable to the
other side of the BNC T connector. Now connect the BNC T
connector to CH 1 through an adapter. See Figure 4--16.
TDS7000 oscilloscope
DC calibrator
50 Ω coaxial cables
Dual banana to
BNC adapters
BNC T
connector
Output Sense
Figure 4- 16: Initial test hookup
Check D C Gain Accuracy
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