CCS Technical Documentation
Troubleshooting - Baseband
RH-34
Issue 1 11/2003 Confidential
©
2003
Nokia Corporation
Page 27
In Channel 4, we can see that PURX is release and this is when the phone operation goes
from "RESET" mode to "POWER_ON" mode.
Tomahawk headset detection
Accessory detection on Tomahawk is done digitally. The pins used for accessory detection
are:
Pin 2 (Charge GND)
Pin 3 (ACI)
Pin 4 (Vout)
A waveform of such detection can be seen in the following figure: