Calibration Constant Password - Agilent Technologies 83620A Service Manual

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Checksum Verification
At instrument power on, the calibration constants stored in RAM are added
and compared with the checksum value. If the two values match, the current
calibration constants are maintained in RAM.
If the RAM checksum does not verify, the calibration constants are loaded into
RAM from EEPROM. hese calibration constants are added and compared
with their checksum value. If the two values match, these calibration constants
(from EEPROM) are maintained in RAM.
If the RAM checksum still does not verify, the default calibration constants are
loaded into RAM from UVEPROM. A message is displayed on the synthesizer
indicating that the default calibration constants are in use. he synthesizer
will probably meet performance speci cations. All the performance tests
not
should be run.

Calibration Constant Password

he synthesizer is shipped with a factory-set password. A password disables
access to the adjustment menu unless the password is entered (see \Entering
a Password"). Calibration constants
accessing the adjustment menu.
he following is the factory-set password: 8360 You can set a new password.
See \Setting a Password".
You can eliminate the password. See \Disabling a Password".
If you have forgotten the password, or if you require access to the calibration
constant adjustments for calibration purposes and do not know the password,
see \Bypassing the Password".
HP 8360
be manually altered without
cannot
Calibration Constants 4-3