4 - 4
PERFORMANCE TEST
4.3
TEST PROCEDURE
4.3.1
Preliminary settings
Test equipment:
None
Settings/procedure and requirements:
1
-
If not present install 2 penlight (LR6) back up batteries in the holder at the
rear panel of the oscilloscope.
2
-
Turn on the oscilloscope under test.
3
-
Press the STATUS and TEXT OFF keys simultaneously. This assures that
the oscilloscope follows the default reaction when the green AUTOSET
key is pressed. You can verify that the oscilloscope is in analog mode by
pressing the RUN/STOP key. If you are in analog mode, the message
’PLEASE FIRST SWITCH TO DSO’ is displayed. The now following steps
are applicable for PM3390B and PM3394B.
4
-
Press the UTILITY menu key to display the UTILITY menu.
5
-
Press softkey AUTOSET to display the UTILITY AUTOSET menu.
6
-
Press the relevant softkey to put the oscilloscope in the ’userprog’ mode;
the text ’userprog’ must be intensified.
7
-
Press softkey VERT.
8
-
Select with softkey ’1M
Ω
/ 50
Ω
/ unaffect’ the ’unaffect’ position.
9
-
Check for the instrument settings in the lower part of the viewing area:
when not available press TEXT OFF until the maximum amount of
information is displayed.