EasyManuals Logo

Nokia 7230 Service Manual

Nokia 7230
166 pages
To Next Page IconTo Next Page
To Next Page IconTo Next Page
To Previous Page IconTo Previous Page
To Previous Page IconTo Previous Page
Page #143 background imageLoading...
Page #143 background image
VBAT (Battery voltage)
The BSI line is used to recognize the battery capacity by a battery internal pull down resistor.
Charging
This phone is charged through a separate charger connector.
Charging is controlled by energy management, and external components are needed to protect the baseband
module against EMC, reverse polarity and transient frequency deviation.
Complementary USB charging is supported as well, in case the phone is connected to a PC or to a dedicated
USB charger.
Normal and extreme voltages
Energy management is mainly carried out in the ASIC PEARL/GAZOO. These circuits contain a number of
regulators. In addition there are some external regulators.
In the table below normal and extreme voltages are shown when a BL-4CT battery is used.
Table 13 Nominal voltages
Voltage Voltage [V] Condition
General Conditions
Nominal voltage 4.1
Lower extreme voltage 3.5
Higher extreme voltage (fast
charging) 4.2
HW Shutdown Voltages
Vmstr+ 2.1 ± 0.1 Off to on
Vmstr- 1.9 ± 0.1 On to off
SW Shutdown Voltages
Sw shutdown 3.106 In call
Sw shutdown 3.2 In idle
Min Operating Voltage
Vcoff+ 2.9 ± 0.1 Off to on
Vcoff- 2.7 ± 0.1 On to off
Power key and system power-up
When the battery is placed in the phone the power key circuits are energized. When the power key is pressed,
the system boots up (if an adequate battery voltage is present).
Power down can be initiated by pressing the power key again (the system is powered down with the aid of
SW). The power key is connected to EM ASIC N2200 (Gazoo/Pearl) via PWRONX signal.
RM-598; RM-604
System Module
Issue 1 COMPANY CONFIDENTIAL Page 5 –9
Copyright © 2009 Nokia. All rights reserved.

Table of Contents

Other manuals for Nokia 7230

Questions and Answers:

Question and Answer IconNeed help?

Do you have a question about the Nokia 7230 and is the answer not in the manual?

Nokia 7230 Specifications

General IconGeneral
Display typeTFT
Display diagonal2.4 \
Display resolution240 x 320 pixels
Display number of colors262144 colors
Internal memory70 MB
Flash card supportYes
Maximum memory card size16 GB
Rear camera resolution2048 x 1536 pixels
Rear camera resolution (numeric)3.2 MP
Networking typeGSM
Browser supportedHTML, XHTML, OSS, Opera Mini
Operating frequency850/900/1900/2100 MHz
USB 2.0 ports quantity1
Supported network protocolsTCP/IP
Headphone connectivity3.5 mm
Multimedia Messaging Service (MMS)Multimedia Messaging Service (MMS) is a standard way to send messages that include multimedia content to and from a mobile phone over a cellular network
Video compression formats3gp, H.263, mp4
Video capture resolution (max)320 x 240 pixels
Ringer typePolyphonic
Audio formats supportedAAC, eAAC+, MP3, WMA
Polyphonic rings quantity64
Battery typeBL-4C
Talk time (2G)5.4 h
Battery capacity860 mAh
Standby time (2G)370 h
Continuous audio playback time27 h
Continuous video playback time6.35 h
Form factorSlider
Phonebook capacity2000 entries
Personal info management (PIM)Alarm clock, Calculator, Calendar, Countdown timer, Stopwatch, To-do list
Bluetooth version2.1+EDR
Product colorGray
Data networkEDGE, GPRS, wcdma
Weight and Dimensions IconWeight and Dimensions
Depth14.5 mm
Width48 mm
Height98 mm
Weight100 g

Related product manuals