Agilent Technologies HP 8719D Service Manual page 292

Figure 10-7. Location of Internal Counter Wading on Display
Det
12. IF (IF on All phase lock after 40 MHz Eiter)
This node detects the IF as a voltage at the output of the 40 MHz fIIter on
the All phase lock assembly. The trace should be a flat line at about -1.7 V
as shown in Figure 10-7.
Figure 10-8. Node 12: Typical IF Detector Voltage Trace
1033
Service Key Menus and Error Messages