A SERVICE OF

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Troubleshooting
Maintenance
6Ć36
4. Remove cal jumper J609 from the main board (see Figure 6Ć19). Save
the jumper. After calibration and to protect the calibration settings,
reinstall the jumper.
5. Reinstallation: Perform in reverse order steps 1 and 2, reversing the
removal instructions in each substep.
Cal Jumper J609
Main Board
Figure 6Ć19:ăMain Board Cal Jumper
Figures 6Ć20 through 6Ć29 are flowcharts of the troubleshooting procedure.
Use them to verify module failures indicated by the onboard diagnostics, or
use them to troubleshoot an instrument failure not connected with the
diagnostics. Begin with Figure 6Ć20.
NOTE
Before performing the troubleshooting procedure, remove the
instrument cabinet (see page 6Ć13).
Troubleshooting
Procedure