Introduction
IMPORTANT:
This document is intended for use by authorized NOKIA service centers only.
“Service Schematics” was created with focus on customer care.
The purpose of this document is to provide further technical repair information for
NOKIA mobile phones on Level 3/4 service activities.
It contains additional information such as e.g. “Component finder”,
“Frequency band table” or “Antenna switch table”.
The “Signal overview” page gives a good and fast overview about the most
important signals and voltages on board.
Saving process time and improving the repair quality is the aim of this document.
It is to be used additionally to the service manual and other training
or service information such as Service Bulletins.
Service Schematics
nokia
Exploded view and component disposal
26502650
RH-53
All measurements were made using following equipment:
Nokia repair SW : Phoenix version A14 2004.16.4.47
Oscilloscope : Fluke PM 3380A/B
Spectrum Analyzer : Advantest R3162 with an analog probe
RF-Generator / GSM Tester : Rhode & Schwarz CMU 200
Multimeter : Fluke 73 Series II
While every endeavour has been made to ensure the accuracy of this document, some
errors may exist. If the reader finds any errors, NOKIA should be notified in writing.
Please send E-Mail to: training.sace@nokia.com training.sace@nokia.com
Copyright © NOKIA
This material, including documentation and any related computer programs is protected
by copyright, controlled by NOKIA. All rights are reserved. Copying, including reproducing,
modifying, storing, adapting or translating any or all of this material requires the prior
written consent of NOKIA. This material also contains confidential information, which may
not be disclosed to others without the prior written consent of NOKIA.
Table of Contents PageTable of Contents Page
1
FrontpageFrontpage
DCT-4 common basebandDCT-4 common baseband
System connector, AudioSystem connector, Audio
UEMKUEMK
UPP, Combo memoryUPP, Combo memory
UI, B to B connector, KeyboardUI, B to B connector, Keyboard
RF partRF part
Signal overviewSignal overview
Component finderComponent finder
1
2
2
3
3
4
4
5
5
6
6
7
7
8
8
9
9
Customer Care EMEA / Service & Support Readiness / Training Group
Customer Care EMEA / Service & Support Readiness / Training Group
Copyright © 2004 NOKIA Only for training and service purposes
Copyright © 2004 NOKIA Only for training and service purposes
Version:1.0 Version:1.0 12.07.200412.07.2004
2650 RH-532650 RH-53
Board version: 1EJA_09Board version: 1EJA_09
FrontpageFrontpage
Page 1(9)Page 1(9)
SYS_CONN
PWRONX
HOOKINT
HEADINT(1:0)
GPIO(31:0)
Page 3
SYS_CONN Components: 100-129
RFAUX(1:0)
MIC(2:0)
XMIC(2:0)
XEAR(3:0)
IHF(1:0)
UIDRV(5:0)
SLOWAD(6:0)
ACCDIF(2:0)
CHARGER(4:0)
IACCDIF(5:0)
GENIO(31:0)
SIMIF(3:0)
USB_DIG(6:0)
PUSL(3:0)
AUDUEMCTRL(3:0)
USB(2:0)
APE_GPIO(15:0)
G_SYS_CONN(11:0)
KEY_UI
SIMIF(3:0)
IHF_XEAR(1:0)
LCDUI(2:0)
Page 6
MIC(2:0) PUSL(3:0)
Components: 300-349
KEYB(10:0)
GENIO(31:0)
UIDRV(5:0)
PWRONX
SLOWAD(6:0)
DIFDATA(7:0)
DIFCTRL(3:0)
AUDUEMCTRL(3:0)
EAR(1:0)
GPIO(31:0)
AUDIO
Page 3
HOOKINT
HEADINT(1:0)
MIC(2:0)
XMIC(2:0)
XEAR(3:0)
IHF(1:0)
AUDIO Components: 150-199
SLOWAD(6:0)
XAUDIO(17:0)
AUDUEMCTRL(3:0)
IHF_XEAR(1:0)
IHF_XEAR(1:0)
LCDUI(2:0)
KEYB(10:0)
UIDRV(5:0)
PWRONX
EAR(1:0)
PUSL(3:0)
EAR(1:0)
GENIO(31:0)
UIDRV(5:0)
AUDIO(6:0)
MULTIGND
IRGND
AGND1
AGND2
POWER
PWRONX
UIDRV(5:0)
RFAUXCONV(2:0)
Page 4
XAUDIO(17:0)
AUDIO(6:0)
SLOWAD(6:0)
ACCDIF(2:0)
CHARGER(4:0)
POWER Components: 200-249, 260-299
STEPUP Components:260-269
DC/DC Components:270-299
RFCONVCTRL(2:0)
AUDUEMCTRL(3:0)
IRGND
AGND1
AGND2
AGND(2:1)
RFCONV(9:0)
GENIO(31:0)
RFCONVDA(5:0)
AUDIODATA(3:0)
IACCDIF(5:0)
PUSL(3:0)
SIMIF(3:0)
IRGND
1
2
LCDUI(2:0)
KEYB(10:0)
GENIO(31:0)
RFCONVCTRL(2:0)
RFCONVDA(5:0)
AUDIODATA(3:0)
AUDUEMCTRL(3:0)
IACCDIF(5:0)
PUSL(3:0)
Components: 400-419
UPP
Page 5
RFCLK
RFCLKGND
RFICCTRL(2:0)
MEMADDA(15:0)
MEMAD(24:16)
MEMCONT(9:0)
RF_BB
SLOWAD(6:0) SLOWAD_O(6:0)
RFCONV(9:0)
RFAUXCONV(2:0) RFAUXCONV_O(2:0)
RFCLK
RFCLKGND RFCLKGND_I
RFAUX(1:0)
GENIO(31:0) GENIO_O(31:0)
PUSL(3:0) PUSL_O(3:0)
RFCONV_ANA(16:0) RFCONV_ANA_O(16:0)
RFCONV_DIGI(16:0) RFCONV_DIGI_O(16:0)
RFICCTRL(2:0) RFICCTRL_O(2:0)
Components: 420-439
MEMADDA(15:0)
RFCONV_O(9:0)
LPRFCLK_I
RFCLK_I
Page 7
RFAUX_O(1:0)
RFCLK_I_GPS
MEMORY
Page 5
MEMAD(24:16)
MEMCONT(9:0)
GENIO(31:0)
Components: 450-469
SLOWAD_O(6:0)
RFCONV_O(9:0)
RFAUXCONV_O(2:0)
LPRFCLK_I
RFCLK_I
RFCLKGND_I
RFAUX_O(1:0)
GENIO_O(31:0)
PUSL_O(3:0)
RFCONV_ANA_O(16:0)
RFCONV_DIGI_O(16:0)
RFICCTRL_O(2:0)
RFCLK_I_GPS
Customer Care EMEA / Service & Support Readiness / Training Group
Customer Care EMEA / Service & Support Readiness / Training Group
Copyright © 2004 NOKIA Only for training and service purposes
Copyright © 2004 NOKIA Only for training and service purposes
Version:1.0 Version:1.0 12.07.200412.07.2004
2650 RH-532650 RH-53
Board version: 1EJA_09Board version: 1EJA_09
DCT-4 common basebandDCT-4 common baseband
Page 2(9)Page 2(9)
System connector
Microphone
UEMK
2.1V when
microphone active
B to B connector
Customer Care EMEA / Service & Support Readiness / Training Group
Customer Care EMEA / Service & Support Readiness / Training Group
Copyright © 2004 NOKIA Only for training and service purposes
Copyright © 2004 NOKIA Only for training and service purposes
Version:1.0 Version:1.0 12.07.200412.07.2004
2650 RH-532650 RH-53
Board version: 1EJA_09Board version: 1EJA_09
FrontpageFrontpage
UPP
Page 3(9)Page 3(9)