R&S SU 4200 Troubleshooting
6125.0226.12.01 4.6
Code Message Level Config Note Action
0202 PSU FAN ERROR E – PSU fan is not running
or is blocked.
Send radio to service.
0203 PSU TEMP
WARNING
W – Temperature on PSU
board is over the
warning limit.
Transmitter power is
reduced to 25 W.
This behavior is
normal with extreme
ambient temperature,
115 V AC supply and
continuous
transmission.
Check airflow of fans
and ambient
temperature. Clear the
ventilation opening.
If this fails to eliminate
the fault, send radio to
service.
0204 PSU TEMP ERROR E –- Fan on the PSU board
is blocked.
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
3.4.7.4.2).
If no DC voltage is
connected, the
configuration must be
appropriate for this (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, the
configuration must be
appropriate for this (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 PA
board is less than
22 V. Transmitter
power is reduced.
Check DC voltage on X2
(see chapter
3.4.7.4.2).
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