Slow Clock - Agilent Technologies HP 1660E Series User Manual

Slow clock

If you have the analysis probe hooked up and running and observe a
slow clock or no activity from the interface board, the +5 V supply
coming from the analyzer may not be getting to the interface board.
❏ To check the +5 V supply coming from the analyzer, disconnect one of the
logic analyzer cables from the analysis probe and measure across pins 1
and 2 or pins 39 and 40.
• If +5 V is not present, check the internal analysis probe fuse or current
limiting circuit on the logic analyzer. For information on checking this fuse
or circuit, refer to the HP 1660E/ES/EP or 1670E-Series Logic Analyzers
Service Guide.
• If +5 V is present and the cable connection to the analysis probe appears
sound, contact your nearest Hewlett-Packard Sales Office for information
on servicing the board.
Troubleshooting the Logic Analyzer
Analysis Probe Problems
445