Nokia 6020b Service Manual
Nokia Customer Care
Schematics
RM-31
Issue 1 03/2005
Company Confidential. Copyright © Nokia 2005. All rights reserved.
Page A-3
System Connector, Audio
XMIC P
VCHAR
GND
ACI
Vout
Vout
HSEAR N
Fbus RX
Fbus TX
Fbus TX
HSEAR P
XMIC N
GND
R2007
14V/50V
14V/50V
100R
R2004
GND
GND
GND
GND
3n3
X2001
GND
2
+ 1
C2012
GND
GND
1
2
3
4
ESDA14V2-4BF2
R2000
L2000
MCZ1210AD102T
GND
AGND
2
3
4
5
6
7
8
9
3
4
5
6
7
8
9
X2002
1
10
11
12
13
14
11
12
13
14
C2009
/2 27p
2
2x27p
L2005
600R/100MHz
600R/100MHz
L2004
3n3
C2013
GND
GND
14V/50V
R2006
GND
C2009
/2 27p
1
/2 100R
?
R2002
L2001
MCZ1210AD102T
1
2
3
4
J2006
J2005
10n
C2008
VAUX2
GND
J2008
42R/100MHz
L2003
1.5A
F2000
Close to UEME
22p
C2007
0
1
2
1
2
GND
1n0
C2006
V2000
1PMT16AT3
CHARGER(4:0)
GND
220k
R2003
ACI pull up
C2011
270p
VFLASH1
GND
R2005
100k
100k
2
0
PRODTP3
PRODTP7
PRODTP2
1
ACCDIF(2:0)
/2 100R
?
R2002
"MIC1P"
"MICB1"
"EARN"
"EARP"
"MIC1N"
GND
3
4
C2171
? /2 1n
C2159
/2 33n
?
2
1
C2171
? /2 1n
3
R2160
220R
R2154
? /2 1k0
GND
GND
C2179
?
/2 22p
C2159
? /2 33n
C2179
?
/2 22p
1
?
2
0
/2 1k0
R2154
4
GND
"EARN"
"EARP"
1
0
J2427
B2400
22p
C2406
J2426
1
2
3
4
EXC24CB102U
L2150
/2 VWM16V
1
R2151
GND
R2151
/2 VWM16V
2
600R/100MHz
L2153
"MICP"
"MICN"
1
GND
22p
C2154
0
R2153
2x2k2
R2156
1k8
1u0
C2175
GND
2
B2402
OUT
1
GND
J2429
J2430
4
GND
"MICB2"
"MIC2N"
"HOOKINT"
"MIC2P"
5
/2 1k0
R2174
?
1n0
C2187
GND
C2170
? /2 33n
2x2k2
R2162
R2159
1k0
1k0
GND
/2 33n
?
C2170
R2174
? /2 1k0
6
C2173
? /2 1n
GND
R2171
1k0
R2158
820R
820R
GND
R2173
220R
1u0
C2176
C2173
? /2 1n
3
"XMICP"
"XMICN"
"HEADINT"
0
XAUDIO(17:0)
"HF"
"HFCM"
C2181
?/2 22p
GND
1
GND
C2181
?/2 22p
2
/2 10R
?
R2175
/2 10R
R2175
?
"XEARN"
"XEARP"
/2 22p
?
C2164
5
GND
6
/2 22p
?
C2164
GND
AUDIO(6:0)
22p
C2180
L2154
33nH
33nH
L2155
IHF speaker connection
J2101
J2101_N
J2100_P
J2100
B2401
Earpiece
Microphone
IHF speaker
2.8V
2.8V
External microphone
active = 2.1V
active = 2.1V
Internal microphone
active = 2.1V
active = 2.1V
Customer Care/ Service & Support Readiness / Competence Transfer Team
Copyright © 2005 NOKIA Only for training and service purposes
Copyright © 2005 NOKIA Only for training and service purposes
Page 3(10)
Version: 1.0
21.01.2005
6020 RM-30
Board version: 1gqa_50a
System connector, Audio
UEMEK