Submodules of User Interface

User Interface electronics comprises the following Grip module includes the keyboard with its PWB and backlight, the vibrator. Battery is also included in this module UI Module is an entity containing the display module, backlighting, 5 way navigation key and transceiver keys. No dew condensation Reduced optical performance Note values respect to UI module GND DC Characteristics UI connector is the connector between the UI module and NMP PWB. Table 4 UI-connector DC characteristics Table 4...

Backlight

NHL-2NA grip keyboard uses six white backlight LEDs. These LEDs are smart LEDs (0.6mm height). The LED type is LWL88S, NMP code 4860331. NHL-2NA grip uses brightness groups M1-M2, N1-N2 and P1. There is only one brightness group in one grip-module. The idea is to connect these six LEDs parallel. LEDs are using current that is taken from battery voltage. The voltage is controlled by charge pump (NMP code 4341137) and the current by serial resistor. The idea of the charge pump is to keep the...

Powerup sequence Reset mode

RESET mode can be entered in four ways by inserting the battery or charger, by RTC alarm or by pressing the power key. After voltage appearing at UEM's pin UEMRSTX (connected to AEM's pin REFENA) is used as indication for AEM to start up HW regulators. Also VCTXO is Powered up by using VR3 (UEM). After the 220 ms delays regulator are configured and UEM enters PWR_ON mode and system reset PURX is released. During system start-up, in RESET state, the regulators are enabled, and each regulator...

Quick Guide

Quick Guide CCS Technical Documentation This page left intentionally blank CCS Technical Documentation Quick Guide Install the SIM card Install the battery Switching the phone Normal Tips on efficient Joystick Making a call Taking a picture NHL-2NA Shortcuts in Standby Shortcuts in Other NHL-2NA Keys and parts Keep all miniature SIM cards out of the reach of small children. Before removing the cover s , always switch off the power and disconnect the phone from the charger or any other device....