Rohde & Schwarz XT 4410A - Page 82

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Operator’s Manual • Use under Normal Conditions
– 2.22 – 6076.0822.12.02
q All LEDs pointed out above are illuminated to indicate readiness for operation, their indi-
vidual messages are:
 LED ON: control unit ready for operation
 LED CU: control unit ok
 LEDs GO: radio ok
 LED AC/DC: power available
 LED 1: indicates which signal is being output via the loudspeaker
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q The last activated menu is called up again, or the prompt for PIN entry comes up if the
last menu was PIN-protected.
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