HP 8560A, Service Manual

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HP 85629B Test and Adjustment Module
When attached to the spectrum analyzer’s rear panel, the HP 85629B Test and Adjustment
Module (TAM) p rovides diagnostic functions for the HP 8560A. Because the TAM connects
directly to the analyzer’s internal data and address bus, it controls the analyzer’s hardware
directly. It would be impossible to control the hardware to the same extent either from the
analyzer’s front panel or over the HP-IB.
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.
Service Kit
The HP 8560A Service Kit (HP part number
08562-60021)
contains service tools required to
repair the instrument. Refer to Table
l-l
for a list of items in the service kit.
Table l-l. Service Kit Contents
Description Quantity
HP Part Number
Cable Puller 1 5021-6773
PC Board Prop 1
5021-7459
Line Filter Assembly
1 5061-9032
Line Switch Cable
1 5062-0728
Extender Cable
1 5062-0737
BNC to SMB (snap-on) Cable
2 85680-60093
Connector Extractor Tool Kit
1 8710-1791
Recommended Test Equipment
Equipment required for operation verification, performance tests, adjustments,
troubleshooting, and the Test and Adjustment Module is listed in Table l-4. Other equipment
may be substituted if it meets or exceeds the critical specifications listed in the table. Refer to
the
HP 856OA Installation and Verification Manual
for the performance tests.
1-6 General Information