Fluke 124B/S Service Manual - Page 44

positive slope, 1.5V and +2.5V, negative, slope, bottom, Set the 5500A to Standby.

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Page 44 highlights

Fluke 123/124/125 Service Manual • Using select positive slope triggering (trigger icon ). • Using set the trigger level to +2 divisions from the screen center. For positive slope triggering, the trigger level is the top of the trigger icon ( ). • Fluke 123/124: press / to open the SCOPE INPUTS menu. • Fluke 123/124: press to open the SCOPE OPTIONS menu, and choose : SCOPE MODE: SINGLE SHOT | WAVEFORM MODE: NORMAL • Fluke 125: press to open MENU. • Fluke 125: press to open the TRIGGER menu, and choose : UPDATE: SINGLE • Fluke 125: press to open the SMOOTH menu, and choose : WAVEFORM: NORMAL 3. Set the 5500A to source 0.4V DC and to OPR. 4. Verify that no trace is shown on the test tool display, and that the status line at the display bottom shows Wait:A . If the display shows the traces and status Hold:A , then press to re-arm the test tool for a trigger. 5. Increase the 5500A voltage slowly in 0.1V steps, using the 5500A EDIT FIELD function, until the test tool is triggered, and the traces are shown. 6. Verify that the 5500A voltage is between +1.5V and +2.5V when the test tool is triggered. To repeat the test, start at step 3. 7. Set the 5500A to Standby. 8. Press to clear the display. 9. Press to enable the arrow keys for Trigger Level and Slope adjustment. 10. Using select negative slope triggering ( ). 11. Using set the trigger level to +2 divisions from the screen center. For negative slope triggering, the trigger level is the bottom of the trigger icon ( ). 12. Set the 5500A to source +3V DC and to OPR. 13. Verify that no trace is shown on the test tool display, and that the status line at the display bottom shows Wait:A . If the display shows the traces and status Hold:A , then press to re-arm the test tool for a trigger. 14. Decrease the 5500A voltage slowly in 0.1V steps, using the 5500A EDIT FIELD function, until the test tool is triggered, and the traces are shown. 15. Verify that the 5500A voltage is between +1.5V and +2.5V when the test tool is triggered. To repeat the test, start at step 12. 16. Set the 5500A to Standby. 17. Press to clear the display. 3-14

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Fluke 123/124/125
Service Manual
3-14
•
Using
select positive slope triggering (trigger icon
).
•
Using
set the trigger level to +2 divisions from the screen center.
For
positive slope
triggering, the trigger level is the
top
of the trigger icon (
).
•
Fluke 123/124: press
/
to open the SCOPE INPUTS menu.
•
Fluke 123/124: press
to open the SCOPE OPTIONS menu, and choose :
SCOPE MODE:
SINGLE SHOT | WAVEFORM MODE:
NORMAL
•
Fluke 125: press
to open MENU.
•
Fluke 125: press
to open the TRIGGER menu, and choose :
UPDATE:
SINGLE
•
Fluke 125: press
to open the SMOOTH menu, and choose :
WAVEFORM:
NORMAL
3.
Set the 5500A to source 0.4V DC and to OPR.
4.
Verify that no trace is shown on the test tool display, and that the status line at the
display bottom shows
Wait:A
.
If the display shows the traces and status
Hold:A
, then
press
to re-arm the test tool for a trigger.
5.
Increase the 5500A voltage slowly in 0.1V steps, using the 5500A EDIT FIELD
function, until the test tool is triggered, and the traces are shown.
6.
Verify that the 5500A voltage is between
+1.5V and +2.5V
when the test tool is
triggered.
To repeat the test, start at step 3.
7.
Set the 5500A to Standby.
8.
Press
to clear the display.
9.
Press
to enable the arrow keys for Trigger Level and Slope adjustment.
10.
Using
select negative slope triggering (
).
11.
Using
set the trigger level to +2 divisions from the screen center.
For
negative
slope
triggering, the trigger level is the
bottom
of the trigger icon (
).
12.
Set the 5500A to source +3V DC and to OPR.
13.
Verify that no trace is shown on the test tool display, and that the status line at the
display bottom shows
Wait:A
.
If the display shows the traces and status
Hold:A
, then
press
to re-arm the test tool for a trigger.
14.
Decrease the 5500A voltage slowly in 0.1V steps, using the 5500A EDIT FIELD
function, until the test tool is triggered, and the traces are shown.
15.
Verify that the 5500A voltage is between
+1.5V and +2.5V
when the test tool is
triggered.
To repeat the test, start at step 12.
16.
Set the 5500A to Standby.
17.
Press
to clear the display.