34405A User’s and Service Guide
111
Disassembly and Repair
5
Self-Test Errors
The following errors indicate failures that may occur during a self- test.
N O T E
On the remote interface, a self
–
test failure will generate SCPI error –330 and a
supplemental message indicating one of the test numbers shown below. On the front
panel, only the failing test is shown.
Table 22
Self-Test Error Numbers
Error Number
Description
626
I/O processor failed self-test
630
Unstable Oscillator
631
Program ROM checksum failed
632
Program RAM failed
633
Display board failed
634
ADC failed
635
Interface board failed
636
DC Path error
637
AC path attenuated error
638
AC path attenuated 100 error
639
AC path attenuated 1000 and amplified 10 error
640
Frequency measurement path failed
641
Constant Current 0.2V/1kohm error
642
Constant Current 0.2V/10kohm or amplification of 11 error
643
Constant Current 0.8V/100kohm or amplification of 11 error
644
Constant Current 1V/1.1Mohm or amplification of 11 error
Downloaded from
www.Manualslib.com
manuals search engine