Troubleshooting R&S M3SR Series 4100 HF Transceivers
4.5 6124.9007.82.01
If one or more of the following error messages are displayed, check the correct connection of the
appropriate module:
FE NOT DETECTED
SYNTH NOT DETECTED
PA NOT DETECTED
MB NOT DETECTED
If one or more of the following error messages are displayed, replace the internal R&S GB 4000C
Comfort Control Unit according to 5.8 - Removal and Installation:
READBACK ALTERA ERROR
READBACK EPSON ERROR
28 V OUT OF RANGE
12 V OUT OF RANGE
5 V OUT OF RANGE
3.3 V OUT OF RANGE
2.2 V OUT OF RANGE
-12 V OUT OF RANGE
FPGA PLL ERROR
PS 28V TO PA RIGHT Power Amplifier
PS 28V TO PA LEFT Power Amplifier
PS 28V TO X33 Check external cabling at connector X33, replace Power Amplifier.
PS -12V Power Amplifier
PS 12V Power Amplifier
PS 33V Power Amplifier
PS MAIN INPUT Check external 28 V power supply or cabling between that supply and
connector X31, check sensor lines on connector X31 as well.
PS VLIM Power Amplifier
from NMEA Interface
DSC PLL UNLOCK NMEA Interface
Message Module(s) / Device(s) to be Replaced and/or Action
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