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RM-497
System Module
Mode
NORMAL
The PMU is in the normal operating mode and is sending out the 32 kHz clock to the
(PWR_ON)
D2800 (BCM21351) and BT/FM module. The BB ASIC in normal operating mode with the
UI enabled.
CHARGING
The phone is in the NORMAL (PWR_ON) mode. The PMU will charge the battery up to
(PWR_ON)
4.2V when the wall charger or host USB Charger cable is plugged in. The phone will stay
in the CHARGING (PWR_ON) mode.
LOCAL
Test mode to run diagnostics for trouble-shooting. The phone UI is off.
SLEEP
Sleep mode is entered only from the NORMAL (PWR_ON) mode with the aid of SW when
the system's activity is low to extend the battery life.
FLASHING
Flashing mode is for SW downloading.
Note:
The actual modes and operation in these modes will be determined by Nokia firmware.
Power Distribution
The following figure shows a top-level view of the power distribution on the Voyager platform.
Issue 1
COMPANY CONFIDENTIAL
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Description
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Troubleshooting
