Performance Tests
TDS7104 & TDS7054 Service Manual
4-53
50 Ω coaxial cable
Output
Leveled
sine wave
generator
TDS7000 oscilloscope
2X Attenuator
Figure 4- 23: Initial test hookup
1. Install the test hookup and preset the instrument controls:
a. Hook up the test-signal source: Connect, through a 50 Ω precision
coaxial cable and a 2X attenuator , the output of the generator to CH 1
(see Figure 4--23).
b. Initialize the oscilloscope: Press the DEFAULT SETUP button.
c. Modify the initialized control settings:
H Turn on all vertical channels (press the Vertical button of any off
channels: CH 1, CH 2, CH 3, and CH 4).
H From the button bar, touch the Vert button. Set the termination of
each channel to 50 Ω by selecting each channel tab and touching its
Termination 50 Ω button.
H SettheVerticalSCALEofCH1,CH2,CH3,andCH4to100 mV.
H Set the Trigger SOURC E to CH 1.
H Set the Horizontal SCALE 20 ns.
H Touch the Close button.
H From the button bar, touch the Meas button, select the Ampl tab,
and touch the Amplitude button.
2. Display the test signal:
H Set the generator to output a 100 MHz sine wave. Set the test signal
amplitude for about five divisions on screen. Now fine adjust the
generator output until the CH 1 Amplitude readout indicates the
amplitude is 500 mV. Readout may fluctuate around 500 mV.
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