HP 8153A - Page 224

10. Check that the REF can be changed from 200.000dBm to -200.000dBm and
set REF back to O.OOOdBm by holding the [Param] key down for approx. 3
seconds.
11. Press the [Param] key until A is displayed.
12. Check that \ can be changed from 850nm to ITOOnm and set A back to
1300nn\ by holding the [Param] key down for approx. 3 seconds.
Note Perform the following tests with the HP 81533A first in Channel
I A and then in Channel B position.
Module Interface Tests
13. U sing the Ibst Cable check the following DC levels at Test/Cal Box
receptacles:
Note
+ 15V, -15V, P.CTRL, STATUS
+ 15Volt +15Volt±0.8Volt
-ISVolt -i5Volt±0.8Volt
P.CTRL OVolt
STATUS OVolt
When performing the following tests each time after pressing
the switch on the Head Recognition Adapter ER 3200
HEAD-DAT will appear. To continue the tests or to repeat a test,
the error state must be overwritten by pressing any key on the
HP8153A front panel.
14. R ANGE 0, RANGE 1
The states of RANGE 1 and RANGE 0 depend on the respective HP8153A
range settings. Check the status of the range selection signal on the RANGE
1 and RANGE 0 receptacles on the Ibst/Cal. Box.
Switch AUTOrange OFF) and select the ranges with the Up and Down keys.
D-4 Function Tests