Agilent Technologies 856290216 service manual Al4 and Al5 Test Connectors RF Section

Caution	Use of an active probe, such as an HP 85024A, with another spectrum
	analyzer is recommended for troubleshooting the RF circuitry. If an
	HP 1120A Active Probe is being used with a spectrum analyzer, such as the
	HP 8566A/B, HP 8569A/B and the HP 8562A/B, having dc coupled inputs,
	either set the active probe for an ac coupled output or use a dc blocking
	capacitor (HP 11240B) between the active probe and the spectrum analyzer
	input. Failure to do this can result in damage to the analyzer or to the probe.

Troubleshooting Using the TAM

Refer to Chapter 7, “General Troubleshooting,” for information on enabling the TAM for use with the HP 85623 Spectrum Analyzer.

When using Automatic Fault Isolation, the TAM indicates suspected circuits that need to be manually checked. Use Table 12-l to locate the manual procedure.

Table 12-2 lists assembly test connectors associated with each Manual Probe Troubleshooting test. Figure 12-l illustrates the location of the Al5 test connectors.

A l 4			A l 5
FREQUENCY			RF
CONTROL
3501	J304		J501
		J 7	I

J302		J 2 3
J301		J 1 7
		J15
J 1 6	J 1 8	J19
( R E V I S I O N
CONNECTOR)		J602

JIOI A15AZJl J400

sp128e

Figure 12-1. Al4 and Al5 Test Connectors

12-2 RF Section