Nokia 616 Service Manual page 183

Nokia Customer Care
Ignition-Off Mode
The ignition-off power mode is same as active mode and active locked power mode, but
the power supplies are kept alive because the PowerOffx line is held high by the UPP.
This is to enable log-off from GSM network and to enable to continue active phone call
when car is switched off. When those tasks are finished, UPP will set Poweroffx line low
and the RU will switch to standby mode.
Carbatt-Fail Mode
This mode is reached, when the Carbattery is out of the 'normal' operating range. Like in
standby mode all main power supplies are switched off, only power supply for wakeup
logic is active.
VCar
VWAKE
4.2V SMPS
>=1
TF-5
Junctionboard
Issue 2.0 Mar/2005
Company Confidential
From
UPP
System
B2B
Connector
VWake
Power
VBA
B2B
T
Connector
Poweroffx
PA
IGNS
Supply
Copyright © 2005 Nokia Corporation.
Company Confidential
TF5 Technical Information
Baseband
VR1A
UEM
RF
VR2-7
VSIM
Baseb
VCORE
and
VAN
Regu- VIO
RTC VFLASH1
lators
VFLASH2
Blue
tooth
TF-4
Phone unit
TFE-4/RV-1
6
SIM
UPP
FLASH
VPP
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