The message "Wrong SRC/TM" on a BEOSOUND 9000MkIII when pressing '72' while in test mode (Shift 90258) and set to 'CD' could indicate that there is an issue with the source selection or the test mode itself. To resolve this issue, you can try the following steps:
If these steps do not resolve the issue, you may need to seek further assistance from the manufacturer or a professional repair service. It's important to follow the manufacturer's instructions and safety guidelines when attempting to repair or troubleshoot your system to avoid damaging the unit or causing potential harm.
- Check the source selection: Make sure that the correct source (CD) is selected on the BEO4 and that it is functioning properly.
- Check the test mode: Verify that the test mode has been activated correctly and that the Shift 90258 code has been entered correctly.
- Check for firmware updates: Make sure that the firmware on the BEOSOUND 9000MkIII is up-to-date. If there is a firmware update available, install it to resolve any issues with the test mode.
- Factory reset: If the above steps do not resolve the issue, a factory reset of the BEOSOUND 9000MkIII may be necessary. This will restore the unit to its original settings and resolve any software-related issues.