Using the TAM
When attached to the spectrum analyzer’s rear panel, the HP 85629B Test and Adjustment Module (TAM) p rovides diagnostic functions for supporting the HP 8560A. Because the TAM is connected directly to the analyzer’s internal data and address bus, it controls the analyzer’s hardware directly through firmware control. It would be impossible to control the hardware to the same extent either from the analyzer’s front panel or over the
nRevision C (date code 890704), or later, of the HP 85629B TAM firmware supports the HP 8560A Spectrum Analyzer.
The TAM measures voltages at key points in the circuitry and flags a failure whenever the voltage falls outside the limits. The TAM locates the failure to a small functional area which can be examined manually. Remember the following when using the TAM:
nBe sure the spectrum analyzer’s power is turned off when installing or removing the TAM.
•Use the HELP softkey (found in all menus) for useful information.
nPressing (MODULE) will return you to the TAM’s main menu.
nThe TAM acts as the active controller on the
Diagnostic Functions
The TAM provides the four diagnostic functions listed below. (Additional menu selections support the TAM itself.) Refer to the indicated page for a description of each function.
Diagnostic | Page |
1. Automatic Fault Isolation . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .