Fast Light Charger ACH

Extremely light, functionally designed fast & light charger charges your phone battery quickly. Plug the charger into a wall outlet and connect the connector to the bottom of your phone. When not using the charger, you can wrap the cord around it and attach the loose end to the slot on top. The charging time is approximately 45 minutes for the 470 mAh battery. Check the charging status on the phone display. You can use your phone also while charging. Operating within voltage range 90 V 250 V...

NHEK Product Profile Settings

The following settings are available Redial Type Italian Language Greek Language Turkish Language Russian Language Hungarian Language Ringing Tone Set Forced SIM Clock stop See the NHE-6 NHK-6 Product Profile Specification for more info. Note When forced SIM Clock Stop is switched ON, stand-by time is increased consideraby Technical Documentation Start Up Self-tests command Alt, S, S Open MCU Start Up Self-tests dialog box The function is used for changing the state of the EEPROM selectable...

Circuit Description Power Supply

The power supply for the baseband is the main battery. The main battery consists of 2 LI-ION cells. A charger input is used to charge the battery. Two different chargers can be used for charging the battery. A switch mode type fast charger that can deliver 780 mA and a standard charger that can deliver 265 mA. Both chargers are of constant current type. The baseband has one power supply circuit, N300 delivering power to the different parts in the baseband. There are two logic power supply and...

Battery Voltage Measurement

The battery voltage is measured using RFI2, N450 A D converter channel 0 and 7. The converter value supplied from channel 0 is measured when the transmitter is active. This measurement gives the minimum battery voltage. The value from channel 7 is measured when the transmitter is inactive. The battery voltage supplied to the A D converter input is switched off when the baseband is in power off. The battery voltage measurement voltage is supplied by PSCLD, N300 which performs scaling, the...

Keyboard and Display Light

The display and keyboard are illuminated by LED's. The light is normally switched on when a keypad is pressed. The rules for light switching are defined in the SW UI specifications. The display and keyboard lights are controlled by the MCU. The LED's are connected two in series to reduce the power consumption. Due to the amount of LED's required for the keyboard and display light they are divided into two groups. Each group has it's own control transistor. The LED switch transistor is connected...

Power Up Sequence

The baseband can be powered up in three different ways. - When the power switch is pressed input pin 37 to PSCLD, N300 is connected to ground and this switches on the regulators inside PSCLD. - An other way to power up is to connect the charger. Connecting the charger causes the baseband to power up and start charging the battery. - The third way to power the system up is to attach the battery. This is the most common way to power the system up. This power up is successful if the battery...

Charging Control Switch Functional Description

The charging switch transistor V304 controls the charging current from the charger input to the battery. During charging the transistor is forced in saturation and the voltage drop over the transistor is 0.2-0.4V depending upon the current delivered by the charger. Transistor V304 is controlled by the PWM output from N300, pin 34 via resistors R309, R308 and transistor V311. The output from N300 is of open drain type. When transistor V304 is conducting the output from N300 pin is low. In this...

MCU Flash Loading

The flash loading equipment is connected to the baseband by means of the test connector before the module is cut out from the frame. Updating SW on a final product is done by removing the battery and connect a special battery that contains the necessary contacting elements. The contacts on the baseband board are test points that are accessible when the battery is detached. The power supply for the base band is supplied via the adapter and controlled by the flash...

Battery Size Resistor Measurement

The battery size, capacity is determined by measuring the voltage on the BSI pin on the battery pack when the battery is attached to the phone. The auxiliary channel 2 is used for this purpose. The BSI signal is pulled up on the base band using a 47 kohm resistor and the resistor inside the battery pack is reflecting the capacity of the battery. There are two special cases to be detected by the MCU. The first case is the Lithium battery. The Lithium battery has reserved values in the battery...

QuickRF Info command

Alt, V, Q View Quick RF information If phone is in normal mode, the following Quick Info is shown V 02.62D05-09-95DNHE-6D(c) HHP. Serial Hunier Note Special conditions (For example, if the phone's SIM lock is ON) cause this dialog box to change color to make this special condition clear to the user. If the phone is in local mode, the following RF Information is shown. Information is shown in a modeless dialog box which may be left open during other operations. It is also updated when ever...

Chapter System Module Contents

External and Internal Connections 4-5 4-10 Charging Control Switch Functional Description Page 4-12 Power Supply Regulator PSCLD, N301 Page 4-14 PSCLD, N300 External Components Page 4-14 SIM Interface and Regulator in N300 Page 4-16 MCU Access and Wait State Generation Page 4-19 Flash Prommer Connection Using Dummy Battery Page 4-22 Baseband A D Converter Channels usage in N450 and D150 Page 4-23 External Accessory Detection via XMIC ID -line Page 4-26 4-31 4-37 4-38 Receiver IF Circuit, RX...

System Charging Nokia 8110

The GJ8A module is used in GSM products. The baseband is implemented using DCT2 core technology. The baseband is built around one DSP, System ASIC and the MCU. The DSP performs all speech and GSM related signal processing tasks. The baseband power supply is 3V except for the A D and D A converters that are the interface to the RF section. The A D converters used for battery and accessory detection are integrated into the same device as the signal processing converters. The audio codec is a...