Keysight Technologies 34959A Service Manual page 83

Error Description
601 "Self-test: front panel not responding"
602 "Self-test: RAM read/write"
603 "Self-test: A/D sync stuck"
604 "Self-test: A/D slope convergence"
605 "Self-test/Cal: not able to calibrate rundown gain"
606 "Self-test/Cal: rundown gain out of range"
607 "Self-test: rundown too noisy"
608 "Serial configuration readback failed"
609 "DC gain x1 failed"
610 "DC gain x10 failed"
611 "DC gain x100 failed"
612 "Ohms 500 nA source failed"
613 "Ohms 5 uA source failed"
614 "DC 1000V zero failed"
615 "Ohms 10 uA source failed"
616 "DC current sense failed"
617 "Ohms 100 uA source failed"
618 "DC high voltage attenuator failed"
619 "Ohms 1 mA source failed"
620 "AC rms zero failed"
621 "AC rms full scale failed"
622 "Frequency counter failed"
623 "Cannot calibrate precharge"
624 "Unable to sense line frequency"
625 "I/O processor does not respond"
626 "I/O processor failed self-test"
Keysight 34980A Service Guide
Troubleshooting and Diagnostics 4
83