User Guide

Customer Care Solutions Company Confidential Schematics RH-23
Issue 1 02/2004 Copyright Nokia 2004. All rights reserved. Page A-21
Audio
AUDIO AMPLIFIER
"EARP"
"MICP"
"MICB1"
"MIC2P"
"MIC3P"
C
B
"RIGHT P"
"EARN"
"MIC1N"
"MICB2"
"HOOKINT"
"MIC2N"
A
D
IHF speaker connection to Upper block flex
"HFCM"
"MICN"
"MIC3N"
"RIGHT N"
"EARP"
Varistor arrays have reliability issues
"FM-RADIO L"
"FM-RADIO R"
"EARN"
"HEADINT"
"MIC1P"
"HF"
"XMICP"
"XMICN"
"PHONE AUDIO"
"LEFT P"
"LEFT N"
IHF/MONO/STEREO
R161
11
GND
33nH
L151
14V/50V
GND
GND
7
C158
1 /2 27p
R163
3k3
GND
14V/50V
R159
GND
16
15
14
J153
R154
1k0
2
0
1
R155
2x2k2
220R
R171
C151
1n0
C155
1 /2 27p
GND
0
4
GND
1n0
C174
1u0
C166
R170
1k0
C170
100n
GND
GND
2
J152
3
1
/2 27p2
C159
100n
C169
5
R158
14V/50V
GND
GND
1n0
C156
2
GND
L152
33nH
GND
/2 10R
R167
R162
14V/50V
1k0
R153
0
8
1
C162
100n
C173
1n0
4
1n0
C172
L150
MCZ1210AD102T
1
23
GND
2x2k2
R157
1
3
C160
100n
C167
1u0
1 /2 27p
GND
0
3
2 /2 27p
C157
/2 27p
J154
C157
C155
2
VBAT
C171
15p
14V/50V
R151
GND
10
C153
2 /2 33n
B4
B6
ROut+
D2
SPKROut+
Phone_inIHF
D4
LOut+
D6
CLK
E1
ENB
E3
DATA
E5
E7
LOut-
C1,C7=
C3,C5=
LM4855ITLX
N150
VBAT
GND
A1
Bypass
A3
Phone_inHS
A5
Rin
A7
ROut-
B2
SPKRout-
Lin
/2 10R
R167
1
6
2
R164
/2 10R
R164
/2 10R
C154
2 /2 33n
1
4
/2 33n1
C154
GND
0
1
2
C165
100n
0
100n
C168
100nC163
GND
1
C153
9
2 /2 27p
1
/2 33n
C158
GND
GND
C164
1n0
2u2
C150
/2 27p1
C159
GND
1
GND
R152
14V/50V
R172
R156
2k2
2u2
220R
Des.
Appr
16-Feb-2001
dd-mmm-yy
0
0
C152
Name
Sirius Audio
Assoc
DCT4 Common Baseband
THIS DRAWING IS PROTECTED BY COPYRIGHT AS AN UNPUBLISHED WORK.
Copyright (C) Nokia Corporation. All rights reserved.
C161
GND
V.Tuomi
GENIO(31:0)
IHF_XEAR(1:0)
MCBSP2(5:0)
APE_AUDIO(4:0)
APE_GPIO(15:0)
G_AUDIO(11:0)
HEADINT(1:0)
GND
100n
HOOKINT
UIDRV(5:0)
AUDUEMCTRL(3:0)
PUSL(3:0)
SLOWAD(6:0)
IHF(1:0)
AUDIO(6:0)
XAUDIO(17:0)
MIC(2:0)
EAR(1:0)
XMIC(2:0)
XEAR(3:0)