Tektronix TDS7054, Руководство по обслуживанию

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Performance Tests
TDS7104 & TDS7054 Service Manual
4- 55
H
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 50 mV. Readout may fluctuate around
50 mV.
H
Remove the 2X attenuator.
H
Repeat steps a through g .
i. Move the signal to the CH 1 input connector and change the Trigger
SOURCE to CH 1.
H
Connect the 2X attenuator to CH 1.
H
Set the Vertical SCALE of CH 1, CH 2, CH 3, and CH 4 to 100 mV .
H
Set the Horizontal SCALE to display 2 to 5 cycles of the signal.
j. Set the generator output frequency to the full bandwidth of your
instrument (500 MHz for the TDS7054. or 1000 MHz for the TDS7104).
H
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.
H
Remove the 2X attenuator.
k.
Check — Amplitude of each trace other than CH 1 is 0.333 division or
less (discount trace width). Enter the largest amplitude on the test record.
l. Move the signal to the CH 2 input connector and change the Trigger
SOURCE to CH 2.
m. Check — Amplitude of each trace other than CH 2 is 0.333 division or
less (discount trace width). Enter the largest amplitude on the test record.
n.
Move the signal to the CH 3 input connector and change the Trigger
SOURCE to CH 3.
o. Check — Amplitude of each trace other than CH 3 is 0.333 division or
less (discount trace width). Enter the largest amplitude on the test record.
p. Move the signal to the CH 4 input connector and change the Trigger
SOURCE to CH 4.
q. Check — Amplitude of each trace other than CH 4 is 0.333 division or
less (discount trace width). Enter the largest amplitude on the test record.
r. Select an unchecked Vertical SCALE:
H
Connect the 2X attenuator to CH 1.