User Guide

2118 (RH-77)
Baseband Description and Troubleshooting Nokia Customer Care
Page 4 ©2005 Nokia Corporation Company Confidential Issue 01 04/2005
Baseband and RF Architecture
Figure 1: Power distribution
Bottom
Conn.
Flash
N700
N601
Core
UPP
Charger
Battery
DC/DC
LCD/Key
VCTCXO
19.2 MHz
Sleep Clk
32 KHz
CBus
D
B
u
s
MBus
ExtBus
C
FBus
MBus
RF
Bus
VBatt
VIO
Vflash1
Vflash2
VR2
UEMC
VR1B
VR6
VR5
VR1A
VR4
VR3
VR7
VPPPRODTP
VANA
PA
VBatt
Front
End
UHF
SYNTH
FBusRx
FBusT
x
GenIO
Control
V SIM
SIM Reader
V Bat
System
Connector
V Bat
Audio
N2302
JTAG
Dlight
Klight
Flashlight