R&S 4200 Series, Operating Manual

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R&S XU 4200 Troubleshooting
6166.5368.02.01 4.10
Code Message Level Config Note Action
0317 PA TEMP WARNING W – Temperature on the PA
module is over the
warning limit (80 °C).
Output power is
reduced step by step.
This behavior is normal
with continuous
operation and +55 °C
ambient temperature.
Check airflow of fans and
ambient temperature
(see chapter 5.2).
Clear the ventilation
opening.
Check the antenna, and
measure VSWR (see
chapter 3.4.7.4.1). A high
VSWR may cause a
heavy power loss in the
transmitter.
0318 PA TEMP ERROR E – Temperature on the PA
module is over the error
limits (95 °C).
Transmitter is switched
off.
Send the radio to service.
0319 TX TEMP WARNING W – Temperature on the TX
board is over the
warning limit (70 °C).
Output power is
reduced step by step.
This behavior is normal
with continuous
operation and +55°C
ambient temperature.
Check airflow of fans and
ambient temperature
(see chapter 5.2).
Clear the ventilation
opening.
0320 TX TEMP ERROR E – Temperature on the TX
board is over the error
limit (85 °C).
Send the radio to service.
0321 PA NO OUTPUT
PWR
E – Output power is less
than 500 mW.
Send the radio to service.
0322 PA POWER LOW
–1 DB
W – Output power
decreases by 1 dB.
Check temperature (see
chapter 3.4.7.4.4)
Check VSWR (see
chapter 3.4.7.4.1)
Check DC voltage (see
chapter 3.4.7.4.3).
See CBIT messages
0325 to 0328.
If this fails to eliminate
the fault, send radio to
service.