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Error
An alarm is sounded
and or/ you see the
alarm icon in the dis-
play on the faceplate.
The alarm can be
switched mute with
the mute button.
SpycerBox Cell | Hardware Guide | Version 1.0
Rohde & Schwarz DVS GmbH
Cause
One of the power sup-
ply units has been dis-
connected from
power during opera-
tion.
One of the power sup-
ply units has failed.
A fan has failed.
The system is over-
heated.
Troubleshooting
Solution
Check the LEDs of the power supply
units. If one is extinguished, this unit
may be disconnected from power.
Examine the power cord of the unit.
See to it that it is in good technical or-
der, correctly plugged in at both ends
and that the mains current is operat-
ing properly.
Check the LEDs of the power supply
units. If one is extinguished and you
can rule out the above mentioned
cause, a power supply unit has failed.
Replace the broken unit as described
in section "Power Supply Mainte-
nance" on page 5-19.
Check the LEDs of the power supply
units. If all are green, shut down the
system (see section "Shutting Down
the System" on page 4-4) and check
whether a fan has failed (see section
"Fan Failure Management" on
page 5-10). If necessary replace the
broken module as described in the
same section.
If you can rule out the above men-
tioned causes, the alarm must be due
to overheating. See to it that the am-
bient temperature at the front of the
system does not exceed the operat-
ing temperature specified in section
"Technical Data" on page A-5. If the
temperature is within the range,
check the ventilation holes of the sys-
tem and free them from all obstruc-
tions (e.g. dust). In case the problem
persists, contact the R&S DVS ser-
vice department.
Appendix
A-3
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