Keysight Technologies N5290/1A PNA Series Service Manual page 96

N5290/91A Troubleshooting
N5292A Test Controller Troubleshooting
Figure 4-2 TSMB LEDs and the status of the FPGAs. When the magenta LED(s) is
illuminated the FPGA(s) are not enabled (i.e., verify +4.4V, +6.4V, and 9.2V).
TSMB FPGA fault detection LEDs illuminating magenta (i.e., when the magenta
LED is illuminated the FPGA has not been enabled—need to verify: +4.4V, +6.4V,
and +9.2V.)
4-10 Keysight N5290/1A Service Guide