Trigger Level - LeCroy Waverunner2 Series Service Manual

5.10

Trigger Level

The trigger capabilities are tested for several cases of the standard edge trigger:
! Channel (internal), and External Trigger sources
! Three DC levels: −3, 0, +3 major screen divisions
! DC coupling
! Positive and negative slopes
5.10.1 Channel Trigger at 0 Division Threshold
DC Coupling
Recall xxxP028.PNL or configure the DSO:
5-28 Performance Verification
Panel Setups :
Channels Trace ON
Input Coupling :
Input gain :
Input offset :
Trigger setup :
Trigger on :
Slope 1 :
Coupling :
Mode :
Set Trigger level :
Pre-Trigger Delay :
Time base :
Record up to :
Channels Trace OFF Channel 1, Channel 2, Channel 3 & Channel 4
ANALYSIS CONTROL
Trace ON :
Select Math TOOLS
For Math :
Redefine A, B, C, D
Use Math ? :
Math Type :
Avg. Type :
For :
Recall FROM DEFAULT SETUP
Channel 1, Channel 2, Channel 3 & Channel 4
DC 50Ω Ω Ω Ω on all 4 Channels
100 mV/div. on all 4 Channels
0 mV on all 4 Channels (use show status to verify)
Edge
1
Pos
DC
Auto
DC 0.0 mV
50 %
0.1 msec/div.
50 k samples
A, B, C & D
Use at most 5000 points
Channel 1, Channel 2, Channel 3 & Channel 4
Yes
Average
Summed
10 sweeps
Rev. D