User`s guide

Agilent B1500 User’s Guide, Edition 7 9-73
If You Have a Problem
Error Codes
N807 CMU failed Vch full scale measurement.
N808 CMU failed nominal gain measurement
N809 CMU failed extent range X3 adjustment.
N810 CMU failed range resistor 50ohm adjustment.
N811 CMU failed range resistor 1kohm adjustment.
N812 CMU failed range resistor 10kohm adjustment.
N813 CMU failed range resistor 100kohm adjustment.
N814 CMU failed relative Z calculation.
N820 CMU failed correction.
N830 CMU failed configuration test.
N831 SCUU failed SCUU configuration test.
N832 SCUU failed SMU configuration test.
N833 SCUU failed CMU configuration test.
N834 CMU failed digital function test.
N835 CMU failed CPLD test.
N836 CMU failed FPGA test.
N837 CMU failed EEPROM test.
N838 CMU failed PLL1/PLL2 test.
N839 CMU failed PLL DET low state test.
N840 CMU failed PLL DET high state test.
N841 CMU failed PLL1 lock test
N842 CMU failed PLL2 lock test.
N843 CMU failed PLL2 lock test.
N844 CMU failed Hcur DC and VRD ADC test.
N845 CMU failed DC offset test.
N846 CMU failed DC bias 0V test.
N847 CMU failed DC bias -25V test.
N848 CMU failed DC bias +25V test.