Chapter 1 51
Troubleshooting
Isolating an RF, Analog IF, Digital IF, Reference, Synthesizer, or CPU Problem
Figure 1-13 E4406-60042 Extender Measurement Locations
Measurement Location Signal Description Test Equipment Used Expected Level
Apower supplyDVM−15 VDC
Bpower supplyDVM−5.2 VDC
C power supply DVM +15 VDC
Dpower supplyDVM−6 VDC
Epower supplyDVM+9 VDC
F power supply DVM +32 VDC
G power supply DVM +5.2 VDC
H 300 MHz 2nd L.O. calibrated spectrum analyzer −5.5 dBm
I
50 MHz Int. Cal.
a
a. The internal calibrator must be switched in to obtain an accurate level for the 50 MHz Int. Cal. measurement.
Press Input, Input Port, 50 MHz Ref.
calibrated spectrum analyzer −13 dBm
M 10 MHz Synth From Ref calibrated spectrum analyzer −17.5 dBm
N 10 MHz Opt calibrated spectrum analyzer −13 dBm
P 10 MHz RF from Ref calibrated spectrum analyzer −12.5 dBm
Q 10 MHz CPU calibrated spectrum analyzer −7 dBm
R 10 MHz Ext. Out calibrated spectrum analyzer −8.5 dBm
S 10 MHz AIF calibrated spectrum analyzer −44 dBm
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