User Guide

Issue 1 04/2005 COMPANY CONFIDENTIAL 25

RM-94

7 - System Module Nokia Customer Care

Figure 9:Illumination

Test possibility

Phoenix LED test

For troubleshooting see Display faults in Baseband Troubleshooting Instructions.

■ SIM

The whole SIM interface locates in UPP and UEMEK.

The interface part in the UEMEK contains power up/down, port gating, card detect, data receiv-

ing, ATR-counter, registers and level shifting buffers logic. The SIM interface is the electrical

interface between the Subscriber Identity Module Card (SIM Card) and mobile phone (via

UEMEK device).

Both 3V and 1.8V SIM cards are supported. A register in the UEMEK selects SIM supply volt-

age. It is only allowed to change the SIM supply voltage when the SIM IF is powered down.

BAT

DC/DC-Converter

LED+

LED-

GEN I/O 19

LCD Backli

DLIGHT

bord li

UEME