Internal Dc Bias Source Test; Internal Dc Bias Source - HP 4262A Operating And Service Manual

Section IV
Model 4262A
Paragraph 4-14
PERFORMANCE TESTS
4-14. INTERNAL DC BIAS SOURCE TEST.
DESCRIPTION:
This test verifies that the internal dc bias source will apply the specified bias values
to the device under test.
SPECIFICATIONS:
DC bias, Internal Source: 1.5V 5%, 2.2V 5%, 6V +5%
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Figure 4-6. Internal DC Bias Source Test Setup.
EQUIPMENT:
DC Voltmeter .. ........... HP 5300A/w5306A
PROCEDURE:
1. Connect DC Voltmeter to 4262A UNKNOWN terminals as shown in Figure 4-6.
2. Set 4262A controls as follows:
FUNCTION. . ... ittt et i i i e i iiaae e C
CIRCUITMODE. ...............cccv... PRL
OtherControls .................. any position
Note
Do not connect anything to UNKNOWN ter-
minals.
3. Test limits are shown below. Read dc voltmeter output with DC BIAS switch set
as follows: :
DC BIAS .
Switch Setting Test Limits Voltmeter Readout
1.5V 1.425V thru 1.575V
2.2V 2.09 Vthru231 V
6 V 57 Vthru6.3 V
Note
Reading error caused by measurement error
of test equipment is not taken into account
for test limits in table above.
4. If tests fail, proceed to Troubleshooting in Section VIIIL
4-19