Tektronix TDS7054, Service Manual

Page: 116 / 254

Performance Tests
4- 56
TDS7104 & TDS7054 Service Manual
H
Move the signal to CH 1, and set the Trigger SOURCE to CH 1.
H
Press PUSH TO SET 50% .
H
Set the Vertical SCALE of CH 1, CH 2, CH 3, and CH 4 to 50 mV .
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 250 mV. Readout may fluctuate around
250 mV.
H
Remove the 2X attenuator.
H
Repeat steps k through q .
H
Connect the 2X attenuator to CH 1.
H
Move the coaxial cable to CH 1, and set the Trigger SOURCE to
CH 1.
H
Set the Vertical SCALE of CH 1, CH 2, CH 3, and CH 4 to 10 mV .
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 .
4.
Disconnect the hookup:
Disconnect the cable from the generator output at
the input connector of the channel.