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Chapter 6 Service
Self-Test Procedures
6
607 - 614 Power supplies failed
This test uses the internal ADC to measure the voltages of the internal
power supplies. A failure means one or more of the power supplies
measured outside the expected range. The error numbers and their
corresponding power supplies are listed below.
607: Ground
608: +16
609: +12V
610: +5V
611: +3.3V
612: -2.1V
613: -5.2V
614: -16V
615 Primary phase locked loop failed
This test looks at the lock signal on the primary phase locked loop to
determine if the PLL is locked. The instrument is then switched to pulse
mode and the secondary PLL’s lock is tested at 200 MHz and 100 MHz.
Primary PLL’s lock state is checked again after returning to normal (DDS)
mode. A failure indicates that the PLL’s (primary or secondary) are
having trouble maintaining a lock.
616 Secondary phase locked loop failed at 200MHz
This test looks at the lock signal on the secondary phase locked loop at a
frequency of 200 MHz to determine if the PLL is locked.
617 Secondary phase locked loop failed at 100MHz
Same as test 616 except the PLL is tested at 100 MHz.
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