R&S 4200 Series - Page 174

R&S XU 4200 Troubleshooting
6166.5368.02.01 4.8
Code Message Level Config Note Action
0203 PSU TEMP
WARNING
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.
Check airflow of fans and
ambient temperature
(see chapter 5.2).
Clear the ventilation
opening.
If this fails to eliminate
the fault, send the radio
to service.
0204 PSU TEMP ERROR E – Temperature on the
PSU board is over the
error limit.
See PSU TEMP
WARNING above
0301 TX DC BATTERY W W/N DC battery voltage on
X2 is missing or low.
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
con
nected, check the
approp
riate configuration
(see chapter 3.3).
If this
fails to eliminate
the fault, send
radio to
service.
0302 TX AC MAIN W W/N AC main voltage on X1
is missing or low.
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
service.
0303 PA DC 28V VLT LOW W – DC voltage on the PA
board is less than 22 V.
Transmitter power is
reduced.
Check DC voltage on X2
(see chapter 3.4.7.4.3).
0304 PA DC 28V
OVERVOLT
E – DC voltage on the PA
board is more than
32 V.
Check the DC voltage on
X2; normally the voltage
must never be
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
to service.