User Guide

Nokia Customer Care Schematics 1CJ_08 RH-47
Company Confidential
Issue 1 05/04 © 2004 Nokia Corporation Page 8-6
Audio diagram, v. 1.0 ed.11
1
2
HFCM
HF
MIC2P
MIC2N
PIN 1 = +
PIN 2 = -
connection
MALT speaker
HEADINT
HF
HFCM
MICB1 is on
MICB2
6.3V
MIC2P
MIC2N
HOOKINT
HF
HFCM
"MIC3P"
"MIC3N"
MICB2 on
Voltage depends on accesory connected
"MICP"
"Close to UEM"
"MICN"
"MIC1N"
"MIC1P"
"MICB1"
"EARP"
"EARN"
Audio PA onAudio PA on
Audio PA on
Audio PA on
"Close to UEM"
"Close to UEM"
Audio PA on
Place Testpoints on Mic -pads
1 = out
2 = gnd
HEADINT
GND
4
3
2
1
0
GND
VBAT_AUDIO
GND
GND
GND
L330
42R/100MHz
/2 VWM16V1
6n8
C339
GND
R346
J334
1
22p
C349
C336
1n0
C334
330p
+IN
Bypass
Vo2
_Shutdown
J332
GND
GND
B1,B2= GND
VAPA
N330
LM4890ITLXNOPB
B3=
-IN
Vo1
8
GND
C352
10U
/2 1k0
R337
2
C348
10U
C340
6n8
R332
27k
1 /2 33n
2x33n
C337
C325
22p
VAPA
C358
22p
2
R333
27k
GND
GND
C337
2x33n
2 /2 33n
/2 1k0
10
R344
GND
1
R339
0
1/2 VWM16V
C350
C331
33n
C355
/2 22p 1
2/2 22p
1
GND
GND
R330
22k
C344
2x33n
/2 33n1
GND
C346
6n8
2
R339
/2 1k0
-
C356
15n
C341
B330
NF
+
R331
10U
GND
GND
22k
R340
R351
2x2k2
33k
10
R336
33k
10k
R334
C357
100p
10n
C335
C353
2x2k2
R352
GND
22p
/2 22p2
C350
9
8
R335
2x2k2
33n
1
2
/2 22p
C355
C332
R347
22R
1
0
2x2k2
R338
/2 VWM16V
R346
R337
1
2
GND
2
5
4
3
/2 1k0
C330
1u0
6n8
C347
GND
GND
0.8V
REF337
REF338
0.8V
REF339
2V
220R
R350
2V
REF335
REF336
2V
220R
R349
/2 VWM16V 2
1
23
4
R344
EXC24CB102U
L331
1.8V=Audio PA on
REF332
OV=Audio PA off
22p
C359
6
2.1V
REF330
REF331
VBat
REF334
2.1V
REF333
<2.8V
J333
/2 33n2
2x33n
C344
J331
J330
EAR(1:0)
GENIO(31:0)
HS_AUDIO(4:0)
XAUDIO(17:0)
MIC_AUDIO(2:0)
I_AUDIO(1:0)
EAR_AUDIO(1:0)