R&S SMB100A Release Notes page 16

®
R&S SMB100A
Check for stereo coder firmware update (SMB-B5)
The option SMB-B5 contains its own local firmware. During reboot the instrument
firmware checks whether an update of the stereo coder firmware is required.
●
●
Risk of instrument malfunction!
Interrupting the stereo coder firmware update may lead to instrument malfunction.
Therefore, do not interrupt the stereo coder firmware update and do not switch off
power until instrument confirms success.
During update, RDS Settings will be reset to factory values.
Execute internal adjustments
Internal adjustments will be performed automatically during first power on after
firmware update. So in general no further action is required. However, internal
adjustments can be initiated manually (e.g. after warming up) by performing the
following steps:
●
●
Adjustments requiring external measurement equipment are not affected by the
firmware update.
Risk of damage for device under test!
During adjustment, assemblies without step attenuator (SMB-B112L, SMB-B120L
and SMB-B140L) temporarily provide high power at the RF plug. This may cause
damage to the device under test (DUT). So it is recommended to disconnect the DUT
and replace it by a 50 ohm terminating resistor.
Release Notes 1234.5678.02 - 01
If the stereo coder firmware is already up to date, the instrument starts as usual.
Wait until it is operational and continue with internal adjustments.
If an update is required it is automatically initiated by the new instrument firmware.
Follow instructions and wait until firmware confirms success. The update may take
several minutes.
Press the PRESET key on the instrument front panel.
Press the SETUP key, select Internal Adjustments and execute Adjust All.
Firmware update
16