User Guide

Customer Care Solutions Company Confidential Schematics RH-20
Issue 1 10/2003 Copyright Nokia 2003. All rights reserved. Page A-30
Audio
"MIC3N"
C
B
D
IHF speaker connection
"HOOKINT"
"RIGHT P"
A
"MIC2P"
"MICN"
"FM-RADIO R"
"RIGHT N"
"EARN"
"MIC1N"
"MICB2"
"MIC3P"
"MIC2N"
"FM-RADIO L"
"EARN"
"EARP"
Varistor arrays have reliability issues
"XMICP"
"XMICN"
"HFCM" "LEFT P"
"LEFT N"
"PHONE AUDIO"
"HEADINT"
"MIC1P"
"HF"
IHF/MONO/STEREO
AUDIO AMPLIFIER
"EARP"
"MICP"
"MICB1"
1
0
GND
1
2
C159
1 /2 27p
1
GND
VBAT
9
C170
16
15
14
GND
3
0
0
100n
10R
R164
/2 27p1
C157
GND
/2 33n2
C154
C157
GND
1u0
/2 27p2
GND
C166
C150
2u2
C156
2 /2 1n
GND
/2 1n1
C156
C168
100n
1
/2 1n2
C151
C155
J152
100n
GND
/2 27p1
1
C161
0
11
GND
GND
2
GND
L151
33nH
8
2
2
4
GND
10
/2 33n2
C153
1
23
4
R157
2x2k2
MCZ1210AD102T
L150
R159
14V/50V
GND
14V/50V
R158
1u0
C167
1
J154
J153
0
3
R155
/2 27p2
C155
220R
R171
2x2k2
C159
2 /2 27p
R172
220R
GND
1
6
C153
1 /2 33n
100n
3
33nH
L152
C169
10R
R167
R152
GND
R173
1k0
2k2
R156
14V/50V
R154
GND
1k0
R153
1k0
100n
C162
C152
100n
C165
2u2
68p
GND GND
GND
C173
C174
68p
C151
1 /2 1n
C163 100n
GND
LUOKKANE
Appr
Des.
Dr.
28-Apr-03
Copyright (C) Nokia Corporation. All rights reserved.
THIS DRAWING IS PROTECTED BY COPYRIGHT AS AN UNPUBLISHED WORK.
UNAUTHORIZED REPRODUCTION OF THIS DRAWING IS NOT PERMITTED.
C171
15p
5
DCT4 Common Baseband
Assoc
Vanessa Audio
Name
V.Tuomi
dd-mmm-yy
16-Feb-2001
B4
Lin
ROut+
B6
SPKROut+
D2
D4
Phone_inIHF
D6
LOut+
E1
CLK
E3
ENB
E5
DATA
LOut-
E7
0
GND
C1,C7= GND
VBAT
N150
LM4855ITLX
C3,C5=
Bypass
A1
Phone_inHS
A3
Rin
A5
ROut-
A7
SPKRout-
B2
R151
14V/50V
R165
10R
7
C158
GND
3k3
R163
GND
/2 27p1
C160
GND
100n
10R
R166
4
/2 27p2
C158
/2 1n1
C164
C154
1 /2 33n
GENIO(31:0)
/2 1n2
C164
HOOKINT
UIDRV(5:0)
AUDUEMCTRL(3:0)
PUSL(3:0)
SLOWAD(6:0)
HEADINT
IHF(1:0)
AUDIO(6:0)
XAUDIO(17:0)
MIC(2:0)
EAR(1:0)
XMIC(2:0)
XEAR(3:0)