HP 8924E, Assembly

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Chapter 5, HP 8924C Performance Verification
Oscilloscope Performance Test 20
N:\mkt\MANUALS\HP8924C\ALR\24c_pt.fb
Procedure
1. Access the AF ANALYZER screen.
2. Set the
Filter 2
field to
>99 kHz LP
, and set the
AF Anl In
field to
Audio
In
.
3. Access the OSCILLOSCOPE screen.
4. Adjust the audio analyzer’s source until the digital voltmeter reads 5 V. Adjust the
frequency to the frequencies shown in the PTR ( see "Oscilloscope Performance Test
20" on page 342 ).
5. Adjust the
Time/Div
field to display 2 to 3 waveforms each time the frequency is
changed. (The Time/Div field is displayed when the Controls field is set to
Main .)
6. Set the Controls field to Marker . Select the Peak + field (located under
Marker To ) to move the marker to the peak of the waveform. Repeat this step each
time the frequency is changed.
7. Read the Marker Lvl and compare the reading to the limits shown in the PTR.
Lvl
Time
To Screen
Marker To Marker To Position Controls
OSCILLOSCOPE
Marker
Select Marker
Select Peak +
Level Results
AF Anl In
Filter 1
De-Emphasis
Detector
To Screen
TX Frequency
TX Power
AF ANALYZER
AC Level
Filter 2
Settling
Pk Det To
Speaker Vol
Speaker ALC
Scope To
Gain Cntl
Input Gain
Notch Gain
Notch Freq
De-Emp Gain
Audio In Lo
Ext Load R
DC Current
AF Cnt Gate
Select >99kHz LP
Select AF Anl In
Controls
Vert/div Vert Offset
Time/div
Select Main
Adjust for
2 or 3
Waveforms