Nokia RM-506 Service Manual
Also see for RM-505: Service manual
                                                                                                                                                                                                                                                                        | |
Contents
| 
• VBAT (Battery voltage)Figure 61 Blade battery connectorChargingThis phone is charged through the micro USB connector. The phone supports dedicated, host or hub chargers.Charging is controlled by energy management, and external components are needed to protect the basebandmodule against EMC, reverse polarity and transient frequency deviation.Backup batteryWhen the main battery is not attached EM ASIC (N2200) goes in backup mode using back-up battery thatsupplies voltage to RTC in EM ASIC (N2200).Normal and extreme voltagesEnergy management is mainly carried out in the two Application Specific Integrated Circuits (ASICs) BETTYand AVILMA. These two circuits contains a number of regulators. In addition there are some externalregulators too.In the table below normal and extreme voltages are shown when a BP-4L battery is used.Table 13 Nominal voltagesVoltage Voltage [V] ConditionGeneral ConditionsNominal voltage 3.700Lower extreme voltage 3.145Higher extreme voltage4.230(fast charging)HW Shutdown VoltagesVmstr+ 2.1 ± 0.1 Off to onVmstr- 1.9 ± 0.1 On to offSW Shutdown VoltagesSw shutdown 3.15 In callSw shutdown 3.3 In idleMin Operating VoltageVcoff+ 2.9 ± 0.1 Off to onVcoff- 2.6 ± 0.1 On to offRM-505; RM-506System Module and User InterfacePage 8 –10 COMPANY CONFIDENTIAL Issue 1Copyright © 2009 Nokia. All rights reserved. |
Related manuals for Nokia RM-505
manualsdatabase
Your AI-powered manual search engine