Agilent Technologies 8564EC Service Manual page 95

Manual Adjustment Procedures
2. IF Amplitude Adjustments
Figure 3-8 IF Amplitude Adjustment Locations
The 15 dB reference attenuator adjustment is preset at the factory and
NOTE
need not be done if the entire A5 IF assembly is replaced.
Procedure
1. Press
2. Disconnect W29, violet coax cable, from A5J3. Connect the test cable
3. On the spectrum analyzer, press
4. Set the 3335A controls as follows:
5. Note the marker value. Ideally it should read −60 dBm ±0.1 dB.
118
to turn the spectrum analyzer off. Remove the spectrum
LINE
analyzer cover and place the spectrum analyzer in the service
position as illustrated in
Setup," on page 117.
between A5J3 and the 50Ω output of the 3335A. Press
the spectrum analyzer on.
OFF is underlined.
Frequency ............................................................... 10.7 MHz
Amplitude ................................................................ −55 dBm
Figure 3-7"IF Amplitude Adjustment
, , and
MKR CAL
to turn
LINE
so
IF ADJ ON OFF
Chapter 3