User Guide

Nokia Customer Care Troubleshooting - Baseband

6015/6015i/6016i/6019i (RH-55), 6012 (RM-20)

Troubleshooting Overview

The baseband module for the 6015/6015i/6015i/6019i, and 6012 transceivers include the

following:

The baseband consists the following main Application Specific Integrated Circuits

(ASICs):

• Universal Energy Management (UEM)

• Universal Phone Processor (UPP)

• FLASH and SRAM memory

The baseband architecture is based on the DCT4 Universe engine and supports a power-

saving function called sleep mode. Sleep mode shuts off the VCTCXO, which is used as a

system clock source for both the RF and the baseband. The phone awakens by a timer

running from this 32 kHz clock. The sleep time is determined by network parameters.

During the sleep mode, the system runs from a 32 kHz crystal. The phone enters sleep

mode when both the MCU and the DSP are in standby mode, and the 19.2 MHz Clk

(VCTCXO) is switched off.

The 6015/6015i/6015i/6019i, and 6012 support both 2- and 3-DCT3 type wire chargers.

However, the 3-type wire chargers are treated as 2-type wire chargers. The UEM ASIC

and EM SW control charging.

A BL-6C Li-ion battery is used as the main power source. The BL-6C has a nominal

capacity of 1070 mAh.

Model Type Technology Memory

Frequency

(MHz)

GPS Module

6012 RM-20 Analog and CDMA IS2000 Discrete

Flash: 64 Mb

SRAM: 4 Mb

800 No

6015 RH-55 Analog and CDMA IS2000 Discrete

Flash: 64 Mb

SRAM: 4 Mb

800/1900 No

6015i RH-55 Analog and CDMA IS2000 Combo

Flash: 64 Mb

SRAM: 16 Mb

800/1900 Yes

6016i RH-55 Analog and CDMA IS2000 Combo

Flash: 64 Mb

SRAM: 16 Mb

800/1900 Yes

6019i RH-55 Analog and CDMA IS2000 Combo

Flash: 128 Mb

SRAM: 16 Mb

800/1900 Yes