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Nokia 6610i Service Manual

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RM-37
Company confidential
7-System Module and User Interface
CCS Technical Documentation
Page 42
  ©Nokia Corporation.
Issue 1  04/2004
Audio Control
Figure 17: Audio block diagram RM-37
Accessory identification and Power Supply
Figure 18: Accessory identification and Power supply 
P A
U E M
R adio
L
R
R in
L in
m ic3
x ear
Ph s
Pihf
L o u t
R o ut
L out
R out
anten n a
A C I
h ead in t
m ic2
M ic
IH F -
Sp eak er
SP K R
T om ahaw k
bottom  connector
U P P
ear d a ta
m ic  d ata
m ic1
earp
earp iece
m icro fo ne
Control Bus
Vflash1
Vflash1
4.7k
100k
Vhead
HEADINT
Vflash1
MBUS
headint=
ACI
switch
ACI-line
UEM
UPP
Accessory
Regulator
2.8V/70mA
Tomahawk
Enable
VBatt
Vout
ACI
Chip
56k