6. Input DC Oset Adjustment
The purpose of this procedure is to adjust the DC Bias oset value.
Note
HP VEE Adjustment Program is not required in this adjustment. Follow the
procedures below and adjust proper item using the internal adjustment test.
Required Equipment
None
Procedure
1. Turn the HP 4395A OFF.
2. To gain access to the adjustment components, remove the bottom cover of the HP 4395A.
3. Turn the HP 4395A ON.
4. Press
4
System
5
,
NNNNNNNNNNNNNN
MORE
,
NNNNNNNNNNNNNNNNNNNNNNNNNNNNNNNNNNNNNNNNN
SERVICE TESTS
,
NNNNNNNNNNNNNNNNNNNNNNNNNNNNNNNNNNNNNNNNNNNNNNNNNN
ADJUSTMENT TESTS
to display the internal
adjustment tests menu.
5. Press
4
6
5
,
4
0
5
or use
4
*
5
/
4
+
5
to select the the internal adjustment test 60: A9 A ON ADJ
.
6.
Press
NNNNNNNNNNNNNNNNNNNNNNNNNNNNNNNNNNNNNN
EXECUTE TEST
to run the test.
7. Adjust \ADJ-A-ON" on the A9 Input Multiplexer Board until pass is displayed on the
screen.
8. Press
NNNNNNNNNNNNNN
CONT
to exit the adjustment.
9. Press
4
6
5
,
4
1
5
or use
4
*
5
to select the internal adjustment test 61: A9 B ON ADJ
.
10.
Press
NNNNNNNNNNNNNNNNNNNNNNNNNNNNNNNNNNNNNN
EXECUTE TEST
to run the test.
11. Adjust \ADJ-B-ON" on the A9 Input Multiplexer Board until pass is displayed on the
screen.
12. Press
NNNNNNNNNNNNNN
CONT
to exit the adjustment.
13. Press
4
6
5
,
4
2
5
or use
4
*
5
to select the internal adjustment test 62: A9 R OFF ADJ.
14.
Press
NNNNNNNNNNNNNNNNNNNNNNNNNNNNNNNNNNNNNN
EXECUTE TEST
to run the test.
15. Adjust \ADJ-R-OFF" on the A9 Input Multiplexer Board until pass is displayed on the
screen.
16. Press
NNNNNNNNNNNNNN
CONT
to exit the adjustment.
17. Press
4
6
5
,
4
3
5
or use
4
*
5
to select the internal adjustment test 63: A9 A OFF ADJ.
18.
Press
NNNNNNNNNNNNNNNNNNNNNNNNNNNNNNNNNNNNNN
EXECUTE TEST
to run the test.
19. Adjust \ADJ-A-OFF" on the A9 Input Multiplexer Board until pass is displayed on the
screen.
20. Press
NNNNNNNNNNNNNN
CONT
to exit the adjustment.
21. Press
4
6
5
,
4
4
5
or use
4
*
5
to select the internal adjustment test 64: A9 B OFF ADJ
.
5-16 Adjustments
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