HP 4284A - Page 395

10. Move the cursor to the TEST MENU eld.
11. Press the 4
4
5 and 4
ENTER
5 keys to select the Handler I/F test.
12.
Press the
NNNNNNNNNNNNNNNNNNNNNNNNNNNNNNNN
TEST START softkey.
13. Conrm that the LEDs on the handler simulator b oard turn ON
in accordance with the HP 4284A's output signals displayed on
the LCD. The LEDs should turn ON in the sequence shown in
Figure 10-18.
Figure 10-19. Handler Interface Function Check
14.
Press the
NNNNNNNNNNNNNNNNNNNNNNNNNN
TEST END softkey.
Caution
Do not execute any SELF TEST except for the Bias Current I/F I/O
Test or the HP 4284A will become inop erative. The remaining SELF
TEST are for serviceuse only.
15. Return the jump er settings on the handler interface b oard to the
original settings.
10-32 Performance Tests