Nokia 6235 Service Manual

Page of 48
Nokia Customer Care
Baseband Description and Troubleshooting
6235/6235i/6236i (RM-60)
Issue 1 04/2005
©2005 Nokia Corporation     Company Confidential
Page 5
Introduction
The 6235/6235i/6236i baseband module is a tri-mode, Code Division Multiple Access 
(CDMA), dual-band engine and is based on the DCT4.5 standard. The baseband engine 
includes two major Application Specific Integrated Circuits (ASICs):
• D2200 or UEMEK 2VO — Universal Energy Management Enhanced Integrated 
Circuit (UEME IC), which includes the audio circuits, charge control, and voltage 
regulators
• D2800  or TIKUEDGE v1.1 — Main mobile terminal processor, which includes 
system logic for CDMA, two Digital Signal Processors (DSPs), the Main Control 
Unit (MCU), and the memory
The BL-6C Li-ion battery is used as the main power source and has a nominal capacity of 
1070 mA/h.