Al4 And Al5 Test Connectors; Troubleshooting Using The Tam; Yto Frequency In Test Position - HP 8560A Service Manual

To display the nominal YTO's frequency, press
n
Roller Oscillator Frequency YTO Pretune Accuracy Nominal YTO Frequency
-104
to -93 MHz
-93 to -73 MHz
-73
to -65 MHz
65
to 73 MHz
73
to 93 MHz
93 to 104 MHz

Troubleshooting Using the TAM

When using Automatic Fault Isolation, the TAM indicates suspected circuits that need to be
manually checked. Use Table 10-4 to locate the manual procedure.
Table 10-5 lists assembly test connectors associated with each Manual Probe Troubleshooting
test. Figure 10-3 illustrates the location of Al4 and Al5 test connectors.
FREQUENCY
CONTROL
J 16
( R E S
V I I O N
C O N N E C T O R )
S K 1 1 0 3
(CAL), MORE, FREQ DIAGNOSE, LO FREQ .
Table 10-3. YTO Frequency in TEST Position
MHz
MHz
MHz
A l 4
J 2 3
J 1 7
Figure 10-3. Al4 and Al5 Test Connectors
LO Frequency +lO MHz
LO Frequency
LO frequency -10 MHz
LO Frequency +lO MHz
LO Frequency
LO Frequency -10 MHz
A l 5
RF