Nokia 6600 slide, Руководство по обслуживанию

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Figure 32 Small (right) and wide (left) charger plugs
The phone can also be charged through the micro USB interface.
Charging is controlled by energy management, and external components are needed to protect the baseband
module against EMC, reverse polarity and transient frequency deviation.
Charging a dead battery
Charging of a dead battery has to be carried out via an approved NOKIA charger. Charging of a dead battery
via a PC is not allowed since this procedure is not including a current regulator (the battery can be charged
with a too high current level).
Normal and extreme voltages
Energy management is mainly carried out in the two Application Specific Integrated Circuits (ASICs) N2300
BETTY and N2200 AVILMA. These two circuits contains a number of regulators. In addition there are some
external regulators too.
In the table below normal and extreme voltages are shown when a BL-4U battery-pack is used.
Table 14 Nominal voltages
Voltage Voltage [V] Condition
General Conditions
Nominal voltage 3.700
Lower extreme voltage 3.145
Higher extreme voltage
4.230 (fast charging)
HW Shutdown Voltages
Vmstr+ 2.1 ± 0.1 Off to on
Vmstr- 1.9 ± 0.1 On to off
SW Shutdown Voltages
Sw shutdown 3.1 In call
Sw shutdown 3.2 In idle
Min Operating Voltage
Vcoff+ 2.9 ± 0.1 Off to on
Vcoff- 2.6 ± 0.1 On to off
RM-414; RM-570
System Module
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