User`s guide
M3000A/M3046A/M3015A/M3016A Service Guide
5-8 Troubleshooting the Instrument
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The radio LED blinks yellow when the Ethernet Adapter is transmitting data packets over its
radio.
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The yellow Sync LED is on continuously when the unit is synchronized to a master. The
Wireless assembly is always set as a station. Note: This LED may blink occasionally even
when the unit is synchronized to a master.
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The green Link LED is on continuously to indicate an Ethernet link between the Ethernet
Adapter and the System Board. This LED blinks when the unit sends packets through its
Ethernet port. Note: this LED may blink on occasion even if the link between the Ethernet
Adapter and the System Board is defect.
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The Measurement Server LEDs can be seen from the rear view of the Instrument.
The functions of the three LEDs in the Server are identical to the three LEDs on the
Instrument System Board:
LED Description Defect Condition
Green +5V power LED—When on, this LEd indicates
the presence of +5V.
Off: Check Power Supply
and associated cabling.
Go to the troubleshooting
section.
Measurement Server LEDs
.
.
.
Red
Yellow
Green