Agilent Technologies 89410A Service Manual page 61

4
Determine the probable faulty assembly and next test by comparing
the analyzer's symptoms to the following table.
For additional information on the self tests, see the self-test
descriptions starting on
Failure
Disk Drive
HPIB
Serial Port
Rear panel oven ref out
Rear panel ext ref out
Rear panel ext ref in
Rear panel sync out or parallel port A30 F1 fuse
System interconnect
ThinLAN
AUI port
Probe Power
Random Noise
Rear panel EXT ARM
Front panel external trigger
Source
Auto-range
Over-range
Input
Any of the following functions:
ch number input Z 75 Ω
Ω
ch number input Z 1 M
ch number coupling
ch number alias LPF
External Keyboard
page 7-13
Probable Faulty Assembly
Disk Drive
Diskette
W5 Ribbon Cable
A42 Memory
HPIB Connector
A42 Memory
Serial Port
A42 Memory
A95 F357 fuse
A85 Oven
A60 Frequency Reference
A60 Frequency Reference
A30 F2 fuse
A30 Digital Source
A43 Expanded Memory
A95 F1 fuse
A92 Probe Power
A30 Digital Source
A36 Trigger
A36 Trigger
A35 Analog Source
A30 Digital source
A36 Trigger
A10 Analog Input
A21 A/D Converter
A10 Analog Input, ch number
A80 F1 fuse
External Keyboard
A80 Keyboard
Troubleshooting the Analyzer
To perform self tests
Next Test
Disk drive, page 1-88
Step 5
Serial port, page 1-91
Step 6
Sync out and parallel port,
page 1-95
System interconnect and
LAN port,page 1-96
Step 7
Source and calibrator out,
page 1-62-
Auto-range,page 1-80
DIN connector, page 1-92
1-43