Tektronix TDS6404, Service Manual

Page: 101 / 252

Performance Tests
TDS6000 Series Service Manual
4- 45
STOP
. Checking each channel’s bandwidth at all vertical scale settings is time
consuming and unnecessary. You may skip checking the remaining vertical scale
settings in Table 4--5 (that is, skip the following substep, h) if this oscilloscope
has performed as follows:
H
Passed the 100 mV vertical scale setting just checked in this
procedure.
H
Passed the Verify Internal Adjustment, Self Compensation, and
Diagnostics
procedure found under
Self Tests,
on page 4--5.
NOTE
. Passing the signal path compensation confirms the signal path for all
vertical scale settings for all channels. Passing the internal diagnostics ensures
that the factory-set adjustment constants that control the bandwidth for each
vertical scale setting have not changed.
h.
Check remaining vertical scale settings against limits (optional):
H
If desired, finish checking the remaining vertical scale settings for
the channel under test by repeating substeps c through g for each of
the remaining scale settings listed in Table 4--5 for the channel under
test.
H
When doing substep e, skip the subparts that turn on the CHx Pk-Pk
measurement until you check a new channel.
H
Before doing substep f, touch the Clear button to remove the
previous channel measurements.
H
Install/remove attenuators between the generator leveled output and
the channel input as needed to obtain the six division reference
signals listed in the table.
H
When finished bandwidth checks for a particular channel, clear all
measurements for that channel.
i. Test all channels: Repeat substeps a through g for all four channels.
3. Disconnect the hookup: Disconnect the test hook up from the input
connector of the channel last tested.