HP Cable Box 8591C If the calibration routines cannot be performed, If the display is scrambled

If You Have a Problem

Before You Call Hewlett-Packard

If the calibration routines cannot be performed

Use CAL FETCH to retrieve the correction data that has previously been saved. If the fetched correction data is corrupt, perform the steps in “If the display is scrambled” to set the correction data back to factory default values.

If the calibration data is corrupt

Use CAL FETCH to retrieve the correction data that has previously been saved. If the fetched correction data is corrupt, perform the steps in “If the display is scrambled” to set the correction data back to factory default values.

If the display is scrambled

Perform the following procedure to reinitialize the memory area for correction factors, instrument conEguration, and miscellaneous constants. This procedure will not erase factory-installed calibration factors.

1. Press @ZGKKQ, -37 (Hz), m, then press the following softkeys:

bottom softkey bottom softkey

third softkey from the top

A readable display should appear.

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