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