Performance Tests
TDS7104 & TDS7054 Service Manual
4-61
H Touch the Internal button to select the external reference (the button
name changes to External).
TDS7000 oscilloscope
50 Ω coaxial cable
Output
Sine-wave
generator
Figure 4- 27: Final test hookup for external reference input
8. Confirm external reference:
a. Perform a signal path compensation:
H Touch Utilities and select Instrument Calibration.
H Touch Calibrate and wait for the signal path compensation to finish.
b. Check the completion status: If the Status is Fail, refer the instrument to
qualified service personnel.
9. Disconnect the hookup:
a. Disconnect all test equipment from the oscilloscope.
b. Set the oscilloscope controls:
H Touch Menu to select menu mode.
H Touch Utilities and select External Signals.
H Touch the External button to select the internal reference (the button
name changes to Internal).
c. Perform a signal path compensation:
H Touch Utilities and select Instrument Calibration.
H Touch Calibrate and wait for the signal path compensation to finish.