Calibration And Passwords; Initialization - Keysight N6705 Service Manual

Calibration and Passwords

Initialization

Model N6705 Service Guide
Calibration is not required after the mainframe has been repaired. All
calibration information is module-specific and resides in each power
module.
However, if the PPMC PCA board that contains the calibration switches
has been replaced, any calibration password that has been set will be
lost. Passwords that are used to prevent access to the front panel Admin
menu will also be lost.
The calibration password will automatically be reset to the factory
default, which is zero (0). Front panel access to the Admin menu will be
unrestricted unless a password is set.
Refer to the User's Guide for information on setting the calibration
password as well as the Admin menu password.
The power system's model number, serial number, and other constants
that are required to program the instrument are stored in an EEPROM on
the PPMC PCA board. If this board is replaced, the instrument must be
re-initialized.
To initialize the power system, you must send the following information
to the power system over the interface:
DIAGnostic:FRAMe:ATTRibute "ModelNumber", "value"
where "value" is the model number, e.g. N6705B.
DIAGnostic:FRAMe:ATTRibute "SerialNumber", "value"
where "value" is the serial number located on top of the interface cover.
At power-up, the power system will go through the turn-on self test
sequence. All other parameters will be set to the factory defaults. The
mainframe is now initialized.
Troubleshooting 5
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