8 Service and Maintenance
Self-Test Procedures
186 E364xA User’s and Service Guide
Self-Test Procedures
Power-on self-test
Each time the power supply is powered on, a set of
self- tests are performed. These tests check that the
minimum set of logic and measurement hardware are
functioning properly. Failures during the power- on self- test
utilize error codes 601 through 604 and 624 through 633.
For serial MY53xx6xxx, the power- on self- test utilizes the
complete self- test, which covers from error codes 601
through 633.
Complete self-test
Hold any front panel key except the View key for more than
5 seconds while turning on the power to perform a complete
self- test. The power supply beeps when the test starts. The
tests are performed in the order as shown in
Table 8- 3.
Refer to “Self- Test Error Messages” on page 139 for more
information.
Table 8 - 3 Self-test error messages
601 Front panel does not respond
602 RAM read/write failed
603 A/D sync stuck
604 A/D slope convergence failed
605 Cannot calibrate rundown gain
606 Rundown gain out of range
607 Rundown too noisy
608 Serial configuration readback failed
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