D
a. Using the test cable check the following DC levels at testlcal box
receptacles
Receptacle Expected Value
+
15V
+
15f 0.8V
-15V -15f 0.8V
l?
CTRL
OV
STATUS
OV
5.
To
test the ranging:
a. The states of
RANGE
0 and
RANGE
1
depend on the respective
HP
8153A range settings
b. Press to make sure that autoranging is
OFF.
c. Select the following ranges with
(TiJ
and
B.
In each case, check
the status of the range selection signal on the
RANGE
0 and
RANGE
1
receptacle on the testlcal box.
dBm
Range RANGE
0
RANGE
1
1
6.
To
test the
+
5V:
a. Set the oscilloscope as follows:
Input to ~VIDIV, DC Coupled,
1MQ.
Timebase to 0.005sIDIV.
Sweep mode
to
AUTO.
D4
HP
815338
and Optical
Heads
Performance
Tests
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