R&S SMB Troubleshooting
1407.0806.82 3.15 E-6
Troubleshooting with Internal Adjustments
Various internal adjustments are necessary for correct operation of the instrument. The failure of a certain
adjustment can shorten troubleshooting considerably. The affected module is the RF Board module or the
installed R&S SMB-B5 Stereo/RDS Coder module.
Note: Failed internal adjustments can also be queried on the info page -> History.
Normal action Error, possible causes and corrective action
Internal adjustments call:
SETUP - Internal Adjustments - Adjust All
Internal adjustment of the RF Board and the
optional R&S SMB-B5 Stereo/RDS Coder is
executed.
Abort during adjustment:
The synthesis and level adjustments are all carried
out exclusively on the RF Board, only the
Diagnostic A/D converter on the Basis Board is
needed.
If the synthesis or level adjustment fails and the
Test Points on the Basis Board are in tolerance
most probably the RF Board is defective. Check
the RF Board being supplied correct (see page
3.24). If not in tolerance check the Basis Board
(see Troubleshooting – Basis Board Module)
If the Stereo/RDS Coder adjustment fails and the
synthesis and level adjustments succeed, most
probably the Stereo/RDS Coder module is
defective. Check the Stereo/RDS Coder being
supplied correct (see page 3.32). If not in tolerance
check the Basis Board (see Troubleshooting –
Basis Board Module)
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