R&S 4200 Series Operating Manual page 174

R&S XU 4200
Code Message
0203 PSU TEMP
WARNING
0204 PSU TEMP ERROR
0301 TX DC BATTERY
0302 TX AC MAIN
0303 PA DC 28V VLT LOW
0304 PA DC 28V
OVERVOLT
6166.5368.02.01
Level Config
W – Temperature on the
PSU board is over the
warning limit.
Transmitter power is
reduced to 20 W.
This behavior is normal
with extreme ambient
temperature, 115 V AC
supply and continuous
transmission.
E – Temperature on the
PSU board is over the
W W/N DC battery voltage on
X2 is missing or low.
W W/N AC main voltage on X1
is missing or low.
W – DC voltage on the PA
board is less than 22 V.
Transmitter power is
E – DC voltage on the PA
board is more than
4.8
Note
Check airflow of fans and
ambient temperature
(see chapter 5.2).
Clear the ventilation
If this fails to eliminate
the fault, send the radio
See PSU TEMP
WARNING above
error limit.
Check whether the DC
voltage is properly
connected to X2.
Measure DC voltage (see
chapter 3.4.7.4.3).
If no DC voltage is
connected, check the
appropriate configuration
(see chapter 3.3).
If this fails to eliminate
the fault, send radio to
Check whether the AC
voltage is properly
connected to X1.
If no AC voltage is
connected, check the
appropriate configuration
(see chapter 3.3).
If this fails to eliminate
the fault, send radio to
Check DC voltage on X2
(see chapter 3.4.7.4.3).
reduced.
Check the DC voltage on
X2; normally the voltage
32 V.
more than 32 V (this is
the final charging voltage
of the 28 V lead battery).
If this fails to eliminate
the fault, send the radio
Troubleshooting
Action
opening.
to service.
service.
service.
must never be
to service.