Nokia NHL-2NA Series Troubleshooting Instructions page 54

NHL-2NA
In the pictures below CBUS traffic at bootup is shown. CbusEnx is connected to Ch1,
Cbus Da to Ch2 and CbusClk to Ch3. The lower is just a more detailed picture of a write
command (to AEM).
However, if you are able to get the phone to boot up and can reach Phoenix BB self tests
it is possible to test the functionality of each component attached to Cbus. Use:
• ST_AEM_CBUS_IF_TEST to test AEM Cbus interface
• ST_UEM_CBUS_IF_TEST to test UEM Cbus interface
• ST_LPRF_IF_TEST to test Bluetooth Cbus interface
If an error is found testing any of the abowe components you should replace or re-solder
the failing component.
Page 48 ¤Nokia Corporation
CCS Technical Documentation
Issue 1 07/02