Nokia 5800 - XpressMusic Smartphone - WCDMA Service Manual Download Page 225

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Figure 63 Imaging HWA block diagram

User interface

Resistive touch screen

Proximity sensor

The proximity sensor is used to turn off the touch input, when the phone is against user’s ear during call.

This prevents accidental touch signals that could happen when, for example, user’s cheek touches the phone.
The main parts of the proximity sensor subsystem are:

•

Proximity sensor

•

Proximity boot (mechanical part)

Figure 64 Proximity sensor and boot

The proximity sensor is located on the upper flex assembly.

RM-356

System Module and User Interface

Issue 1

COMPANY CONFIDENTIAL

Page 6 –23

Summary of Contents for 5800 - XpressMusic Smartphone - WCDMA

Page 2: ...Amendment Record Sheet Amendment No Date Inserted By Comments Issue 1 10 2008 ET RM 356 Amendment Record Sheet Page ii COMPANY CONFIDENTIAL Issue 1 Copyright 2008 Nokia All rights reserved ...

Page 3: ... Under no circumstances shall Nokia be responsible for any loss of data or income or any special incidental consequential or indirect damages howsoever caused The contents of this document are provided as is Except as required by applicable law no warranties of any kind either express or implied including but not limited to the implied warranties of merchantability and fitness for a particular pur...

Page 4: ...ST CONNECTIONS MAKE SURE YOU HAVE SWITCHED OFF ALL EQUIPMENT Cautions Servicing and alignment must be undertaken by qualified personnel only Ensure all work is carried out at an anti static workstation and that an anti static wrist strap is worn Ensure solder wire or foreign matter does not enter the telephone as damage may result Use only approved components as specified in the parts list Ensure ...

Page 5: ...ly approved accessories and batteries Do not connect incompatible products CONNECTING TO OTHER DEVICES When connecting to any other device read its user s guide for detailed safety instructions Do not connect incompatible products RM 356 For your safety Issue 1 COMPANY CONFIDENTIAL Page v Copyright 2008 Nokia All rights reserved ...

Page 6: ...an be damaged by static electricity discharge All ESD sensitive parts must be packed in metallized protective bags during shipping and handling outside any ESD Protected Area EPA Every repair action involving opening the product or handling the product components must be done under ESD protection ESD protected spare part packages MUST NOT be opened closed out of an ESD Protected Area For more info...

Page 7: ... batteries and warp or melt certain plastics Do not store the phone in cold areas When it warms up to its normal temperature moisture can form inside which may damage electronic circuit boards Do not drop knock or shake the phone Rough handling can break internal circuit boards Do not use harsh chemicals cleaning solvents or strong detergents to clean the phone Do not paint the phone Paint can clo...

Page 8: ...er NOKIA MOBILE PHONES Business Group should be notified in writing e mail Please state Title of the Document Issue Number Date of publication Latest Amendment Number if applicable Page s and or Figure s in error Please send to NOKIA CORPORATION Nokia Mobile Phones Business Group Nokia Customer Care PO Box 86 FIN 24101 SALO Finland E mail Service Manuals nokia com RM 356 Company policy Page viii C...

Page 9: ...essory available for the product Do not attempt to discharge the battery by any other means Use the battery only for its intended purpose Never use any charger or battery which is damaged Do not short circuit the battery Accidental short circuiting can occur when a metallic object coin clip or pen causes direct connection of the and terminals of the battery metal strips on the battery for example ...

Page 11: ...Service Concepts 3 BB Troubleshooting and Manual Tuning Guide 4 RF troubleshooting 5 Camera Module Troubleshooting 6 System Module and User Interface Glossary RM 356 Nokia 5800 XpressMusic L3 4 Service Manual Structure Issue 1 COMPANY CONFIDENTIAL Page xi Copyright 2008 Nokia All rights reserved ...

Page 15: ...haracteristics for GSM850 900 1800 1900 and WCDMA VIII 900 and WCDMA I 2100 phones 1 11 Battery endurance 1 13 List of Tables Table 1 Audio 1 8 Table 2 Car 1 9 Table 3 Data 1 10 Table 4 Messaging 1 10 Table 5 Music 1 10 Table 6 Navigation 1 11 Table 7 Power 1 11 List of Figures Figure 1 View of RM 356 1 5 RM 356 General Information Issue 1 COMPANY CONFIDENTIAL Page 1 3 Copyright 2008 Nokia All rig...

Page 17: ...connection in GSM EDGE networks simple class A multi slot class 11 4 Rx 3 Tx max sum 5 RM 356 has a large nHD 3 2 640 x 360 pixels colour display active area 39 6 mm x 70 4 mm with 16 million colors It also has a 3 2 megapixel autofocus camera with 3 x digital zoom and an integrated dual LED flash RM 356 is an MMS Multimedia Messaging Service enabled multimedia device The MMS implementation follow...

Page 18: ...optimize display key brightness and power consumption Imaging and video 3 2Mpix autofocus camera with 3 x digital zoom and an integrated dual LED flash True 16 9 high definition widescreen optimised for mobile entertainment Video center for enjoying downloaded and streamed content WMV support video feeds vodcasting and mobile TV IP TV CS video call Video sharing Video streaming 3GPP and CIF Music ...

Page 19: ... 0 OS Java MIDP2 0 Additional technical specifications Vibrating alert 3GPP Rel 5 compliant Speech codecs supported AMR NB AMR FR EFR Sales package Transceiver RM 356 Battery BL 5J Charger AC 8 Stereo headset HS 45 AD 54 audio controller TV out cable CA 75U MicroUSB connectivity cable CA 101 Mini DVD Extra stylus CP 306 plectrum stylus in wrist strap CP 305 carrying case DT 29 desk stand User Guid...

Page 20: ...pe Audio controller AD 54 Hearing aid HDA 12 Wired headsets HS 16 HS 41 HS 43 HS 45 AD 54 HS 45 HS 48 WH 201 WH 202 WH 500 WH 600 WH 700 WH 800 RM 356 General Information Page 1 8 COMPANY CONFIDENTIAL Issue 1 Copyright 2008 Nokia All rights reserved ...

Page 21: ...W HS 52W HS 57W HS 58W HS 59W HS 72W HS 76W HS 79W HS 89W HS 91W HS 94W HS 95W HS 96W HS 100W Table 2 Car Enhancement Type FM transmitter CA 300 Mobile holder CR 39 CR 82 CR 99 CR 103 Mobile holder mounting device HH 12 RM 356 General Information Issue 1 COMPANY CONFIDENTIAL Page 1 9 Copyright 2008 Nokia All rights reserved ...

Page 22: ...2 GB MU 37 MicroSD card 4 GB MU 41 MicroSD card 8 GB MU 43 MicroUSB connectivity adapter cable CA 101 Video connectivity cable CA 75U Table 4 Messaging Enhancement Type Wireless keyboard SU 8W Digital pen SU 27W CP 306 plectrum stylus CP 306 Table 5 Music Enhancement Type Wireless Audio Gateway AD 42W Wireless speakers MD 5W MD 7W Music speakers MD 6 MD 8 RM 356 General Information Page 1 10 COMPA...

Page 23: ...ifications Transceiver general specifications Unit Dimensions L x W x T mm Weight with battery g Volume cm3 Transceiver with BL 5J 1320 mAh Li Ion battery back 111 x 51 7 x 15 5 109 83 MainRFcharacteristicsforGSM850 900 1800 1900andWCDMAVIII 900 andWCDMAI 2100 phones Parameter Unit Cellular system GSM850 EGSM900 GSM1800 1900 WCDMA VIII 900 and WCDMA I 2100 RM 356 General Information Issue 1 COMPAN...

Page 24: ...SM850 5 33dBm 3 2mW 2W GSM900 5 33dBm 3 2mW 2W GSM1800 0 30dBm 1 0mW 1W GSM1900 0 30dBm 1 0mW 1W WCDMA VIII 900 50 24 dBm 0 01μW 251 2mW WCDMA I 2100 50 24 dBm 0 01μW 251 2mW EDGE output power EDGE850 5 29dBm 3 2mW 794mW EDGE900 5 29dBm 3 2mW 794mW EDGE1800 0 26dBm 1 0mW 400mW EDGE1900 0 26dBm 1 0mW 400mW Number of RF channels GSM850 124 GSM900 174 GSM1800 374 GSM1900 299 WCDMA VIII 900 152 WCDMA ...

Page 25: ...II 900 75 WCDMA I 2100 75 Battery endurance Battery Capacity mAh Talk time Stand by Music playback BL 5J 1320 Up to 8 8 h GSM Up to 5 h WCDMA Up to 406 2 h GSM Up to 400 h GSM Up to 35h RM 356 General Information Issue 1 COMPANY CONFIDENTIAL Page 1 13 Copyright 2008 Nokia All rights reserved ...

Page 29: ... 2 9 ST 55 2 9 ST 59 2 9 ST 61 2 10 ST 65 2 10 General tools 2 10 AC 33 2 10 AC 35 2 10 CU 4 2 11 FLS 5 2 12 FPS 10 2 12 FPS 21 2 13 JXS 1 2 13 PK 1 2 14 PKD 1 2 14 SB 6 2 14 SPS 1 2 14 SPS 2 2 15 SRT 6 2 15 SS 102 2 15 SS 46 2 15 SS 62 2 15 SS 93 2 16 SX 4 2 16 Cables 2 16 CA 101 2 16 CA 31D 2 16 CA 35S 2 17 CA 58RS 2 17 CA 75U 2 17 CA 89DS 2 18 RM 356 Service Tools and Service Concepts Issue 1 C...

Page 30: ... 2 30 List of Tables Table 8 Attenuation values 2 17 List of Figures Figure 2 Basic flash concept with FPS 10 2 21 Figure 3 Basic flash concept with FPS 21 2 22 Figure 4 CU 4 flash concept with FPS 10 2 23 Figure 5 CU 4 flash concept with FPS 21 2 24 Figure 6 Module jig service concept 2 25 Figure 7 RF testing concept with RF coupler 2 26 Figure 8 Service concept for RF testing and RF BB tuning 2 ...

Page 31: ...alibration on ATO level with SS 62 mechanical locking concept CU 4 supported MJ 165 Module jig MJ 165 is meant for troubleshooting testing tuning and flashing on the engine level CU 4 supported The jig includes an RF interface for GPS GSM WCDMA and Bluetooth RJ 230 Soldering jig RJ 230 is a soldering jig used for soldering and as a rework jig for the engine module SA 131 RF coupler SA 131 is a RF ...

Page 32: ...r SA 166 Band Channel Attenuation TX dB Attenuation RX dB GSM 850 Low 24 5 19 5 Mid 24 3 20 5 High 23 5 18 5 GSM 900 Low 21 2 17 5 Mid 19 4 17 5 High 18 8 15 5 GSM 1800 Low 11 4 9 2 Mid 10 7 9 2 High 9 0 9 2 GSM 1900 Low 8 0 8 2 Mid 7 5 8 2 High 8 6 9 2 WCDMA Band I Low 9 2 11 1 Mid 9 1 12 1 High 10 1 13 1 WCDMA Band VIII Low 18 7 19 5 Mid 18 5 19 5 High 19 5 19 5 SS 195 Display removal tool SS 19...

Page 33: ...ork jig RJ 157 is a rework jig used when servicing the Z7540 duplexer It is used together with the ST 55 stencil RJ 160 Rework jig RJ 160 is a rework jig used when servicing the WCDMA duplexer Z7541 It is used together with the ST 55 stencil RJ 166 Rework jig RJ 166 is a jig used when servicing the accelerometer N6501 It is used together with the ST 53 stencil RM 356 Service Tools and Service Conc...

Page 34: ... Z7503 component This jig is used together with the ST 65 stencil RJ 73 Rework jig RJ 73 is a rework jig used when servicing the N1451 component It is used together with the ST 29 rework stencil RJ 93 Rework jig RJ 93 is used as a rework jig for the Front End Module FEM This rework jig takes the FEM or power amplifier PA module N7520 for spreading the soldering paste to the component Must be used ...

Page 35: ...ed when servicing the accelerometer N6501 It is used together with the rework jig RJ 166 ST 55 Rework stencil ST 55 is a rework stencil used when servicing the Z7540 and Z7541 duplexers It is used together with the rework jigs RJ 157 and RJ 160 ST 59 Rework stencil ST 59 is a rework stencil used when servicing the WCDMA PA N7540 component It is used together with rework jig RJ 169 RM 356 Service T...

Page 36: ...hat can be used for testing error analysis and repair of product RM 356 For the correct use of the service devices and the best effort of workbench setup please refer to various concepts AC 33 Power supply Universal power supply for FPS 10 included in the FPS 10 sales package AC 35 Power supply Universal power supply for FPS 21 included in the FPS 21 sales package Input 100V 230V 50Hz 60Hz output ...

Page 37: ...ector Hub FBUS and USB connections supported When using CU 4 note the special order of connecting cables and other service equipment Instructions 1 Connect a service tool jig flash adapter to CU 4 2 Connect CU 4 to your PC with a USB cable 3 Connect supply voltage 12 V 4 Connect an FBUS cable if necessary 5 Start Phoenix service software Note Phoenix enables CU 4 regulators via USB when it is star...

Page 38: ...functionality for BB5 and DCT 4 terminals Smart Card reader for SX 2 or SX 4 USB traffic forwarding USB to FBUS Flashbus conversion LAN to FBUS Flashbus and USB conversion Vusb output switchable by PC command FPS 10 sales package includes FPS 10 prommer Power Supply with 5 country specific cords USB cable Note FPS 21 is substitute FPS 10 if FPS 10 has not been set up RM 356 Service Tools and Servi...

Page 39: ...ocket LAN For connecting the FPS 21 to LAN Inside Four SD card memory slots For internal storage memory Note In order to access the SD memory card slots inside FPS 21 the prommer needs to be opened by removing the front panel rear panel and heatsink from the prommer body Note FPS 10 can be used for flashing instead of FPS 21 if necessary JXS 1 RF shield box Because the WCDMA network disturbs the R...

Page 40: ...se the service software Printer or any such device can be connected to the PC through the device if needed SB 6 Bluetooth test and interface box sales package The SB 6 test box is a generic service device used to perform Bluetooth bit error rate BER testing and establishing cordless FBUS connection via Bluetooth An ACP 8x charger is needed for BER testing and an AXS 4 cable in case of cordless int...

Page 41: ...apter between the flash adapter and FPS 10 SS 62 Generic flash adapter base for BB5 generic base for flash adapters and couplers SS 62 equipped with a clip interlock system provides standardised interface towards Control Unit provides RF connection using galvanic connector or coupler multiplexing between USB and FBUS media controlled by VUSB RM 356 Service Tools and Service Concepts Issue 1 COMPAN...

Page 42: ...r analysis and repair of product RM 356 For the correct use of the service devices and the best effort of workbench setup please refer to various concepts CA 101 Micro USB cable The CA 101 is a USB to microUSB data cable that allows connections between the PC and the phone CA 31D USB cable The CA 31D USB cable is used to connect FPS 10 or FPS 11 to a PC It is included in the FPS 10 and FPS 11 sale...

Page 43: ...M850 900 0 2 0 3 dB GSM1800 1900 0 3 0 4 dB WCDMA900 0 2 0 3 dB WCDMA2100 0 4 0 6 dB CA 75U Video out cable The CA 75U enables viewing video recordings on a TV screen or computer monitor It can also be used while video conferencing The cable is used to connect the 3 5 mm AV connector of the phone to the RCA connectors of an AV device RM 356 Service Tools and Service Concepts Issue 1 COMPANY CONFID...

Page 44: ...he PC s serial port and module jigs flash adapters or docking station adapters Note Docking station adapters valid for DCT4 products PCS 1 Power cable The PCS 1 power cable DC is used with a docking station a module jig or a control unit to supply a controlled voltage RM 356 Service Tools and Service Concepts Page 2 18 COMPANY CONFIDENTIAL Issue 1 Copyright 2008 Nokia All rights reserved ...

Page 45: ...e is used to connect for example a module repair jig to the RF measurement equipment SMA to N Connector approximately 610 mm Attenuation for GSM850 900 0 3 0 1 dB GSM1800 1900 0 5 0 1 dB WCDMA900 0 3 0 1 dB WCDMA2100 0 6 0 1dB RM 356 Service Tools and Service Concepts Issue 1 COMPANY CONFIDENTIAL Page 2 19 Copyright 2008 Nokia All rights reserved ...

Page 46: ...ption Product specific tools BL 5J Battery Other tools FLS 5 POS flash dongle PC with Phoenix service software Cables CA 101 Micro USB cable RM 356 Service Tools and Service Concepts Page 2 20 COMPANY CONFIDENTIAL Issue 1 Copyright 2008 Nokia All rights reserved ...

Page 47: ...Flash adapter Other devices FPS 10 Flash prommer box PKD 1 PK 1 SW security device SS 46 Interface adapter PC with Phoenix service software Cables XCS 4 Modular cable CA 35S Power cable USB cable RM 356 Service Tools and Service Concepts Issue 1 COMPANY CONFIDENTIAL Page 2 21 Copyright 2008 Nokia All rights reserved ...

Page 48: ...lash adapter Other devices FPS 21 Flash prommer box AC 35 Power supply PK 1 PKD 1 SW security device SS 46 Interface adapter PC with Phoenix service software Cables CA 89DS Service cable USB cable RM 356 Service Tools and Service Concepts Page 2 22 COMPANY CONFIDENTIAL Issue 1 Copyright 2008 Nokia All rights reserved ...

Page 49: ...es CU 4 Control unit FPS 10 Flash prommer box PKD 1 PK 1 SW security device SS 62 Flash adapter base SX 4 Smart card PC with Phoenix service software Cables PCS 1 Power cable XCS 4 Modular cable Standard USB cable USB cable RM 356 Service Tools and Service Concepts Issue 1 COMPANY CONFIDENTIAL Page 2 23 Copyright 2008 Nokia All rights reserved ...

Page 50: ...lash prommer box AC 35 Power supply PK 1 PKD 1 SW security device SS 62 Flash adapter base SX 4 Smart card for DCT 4 generation mobile device programming PC with Phoenix service software Cables PCS 1 Power cable CA 89DS Service cable Standard USB cable RM 356 Service Tools and Service Concepts Page 2 24 COMPANY CONFIDENTIAL Issue 1 Copyright 2008 Nokia All rights reserved ...

Page 51: ... unit FPS 10 Flash prommer box PKD 1 PK 1 SW security device SX 4 Smart card PC with Phoenix service software Measurement equipment Cables CA 58RS RF service cable product specific adapter cable PCS 1 DC power cable XCS 4 Modular cable XRS 6 RF cable RM 356 Service Tools and Service Concepts Issue 1 COMPANY CONFIDENTIAL Page 2 25 Copyright 2008 Nokia All rights reserved ...

Page 52: ...c devices FS 77 Flash adapter SA 166 RF coupler Other devices CU 4 Control unit SX 4 Smart card FPS 10 Flash prommer box PKD 1 PK 1 SW security device SS 62 Flash adapter base Measurement equipment PC with Phoenix service software Cables RM 356 Service Tools and Service Concepts Page 2 26 COMPANY CONFIDENTIAL Issue 1 Copyright 2008 Nokia All rights reserved ...

Page 53: ...re 8 Service concept for RF testing and RF BB tuning Type Description Product specific devices MJ 165 Module jig Other devices CU 4 Control unit PK 1 PKD 1 SW security device SX 4 Smart card Measurement equipment Smart card reader RM 356 Service Tools and Service Concepts Issue 1 COMPANY CONFIDENTIAL Page 2 27 Copyright 2008 Nokia All rights reserved ...

Page 54: ...ing concept with GPS RF coupler Figure 9 RF testing concept with RF coupler Type Description Product specific devices FS 77 Flash adapter SA 131 GPS RF coupler Other devices CU 4 Control unit SX 4 Smart card JXS 1 RF shield box RM 356 Service Tools and Service Concepts Page 2 28 COMPANY CONFIDENTIAL Issue 1 Copyright 2008 Nokia All rights reserved ...

Page 55: ...cific adapter cable PCS 1 Power cable DAU 9S MBUS cable XRS 6 RF cable 20dB attenuator Interface cable USB cable Bluetooth testing concept with SB 6 Figure 10 Service concept for RF testing and RF BB tuning Type Description Product specific devices FS 77 Flash adapter RM 356 Service Tools and Service Concepts Issue 1 COMPANY CONFIDENTIAL Page 2 29 Copyright 2008 Nokia All rights reserved ...

Page 56: ...x service software Cables DAU 9S MBUS cable PCS 1 DC power cable USB cable WLAN functionality testing concept with SB 7 Figure 11 WLAN functionality testing concept with SB 7 Type Description Product specific tools FS 77 Flash adapter Other tools CU 4 Control unit RM 356 Service Tools and Service Concepts Page 2 30 COMPANY CONFIDENTIAL Issue 1 Copyright 2008 Nokia All rights reserved ...

Page 57: ...able PK 1 SW Security device SS 62 Generic base adapter Cables PCS 1 Power cable DAU 9S Cable Standard USB cable RM 356 Service Tools and Service Concepts Issue 1 COMPANY CONFIDENTIAL Page 2 31 Copyright 2008 Nokia All rights reserved ...

Page 61: ...ting 3 34 Backlights and LED driver troubleshooting 3 36 Ambient Light Sensor troubleshooting and re calibration 3 38 Introduction to ALS troubleshooting and re calibration 3 38 Ambient Light Sensor calibration 3 39 Functionality check 3 39 Calibrating ALS 3 40 GPS troubleshooting 3 41 GPS antenna 3 41 GPS layout and basic test points 3 42 GPS RF test points 3 42 GPS settings for Phoenix 3 44 GPS ...

Page 62: ... Figure 18 ALS components 3 38 Figure 19 GPS antenna 3 41 Figure 20 GPS layout and basic test points 3 42 Figure 21 GPS antenna test pads 3 43 Figure 22 GPS layout and basic test points 3 44 Figure 23 GPS Control dialog box 3 45 Figure 24 Simple Tests Oscillator Test Receiver Self Test 3 46 Figure 25 Simple Tests Oscillator Test 3 47 Figure 26 Simple Tests Receiver Self Test 3 48 Figure 27 CW Test...

Page 65: ...Dead or jammed device troubleshooting Troubleshooting flow RM 356 BB Troubleshooting and Manual Tuning Guide Issue 1 COMPANY CONFIDENTIAL Page 3 7 Copyright 2008 Nokia All rights reserved ...

Page 66: ...IDO converter VRCP1 AVILMA OFF OFF 4 75 RF module RF active VBATCP VOUT BETTY ON ON 2 5 ALS audio switch VBAT6 VDAC LP3985 3 0 DAC33 On when used VBAT VCAM_1V8 LM3677 OFF OFF 1 8 Camera HWA LP5952 cameras flashlight driver VBAT VCAM_1V3 LP5952 OFF OFF 1 3 Camera HWA core LM3677 VCAM_2V8 BH28SA2 OFF OFF 2 8 Cameras VBAT VCORE TPS62350 ON ON 1 2 Rapido core VBAT VIO LM3677 ON ON 1 8 VIO VDRAM VBAT V...

Page 67: ...ain user Notes Supply VLED_XPR ESS TPS75105 OFF Media key backlight VBAT ADP1653 OFF OFF 4 5 5 5 Camera flash VBAT VBAT 3 6 RM 356 BB Troubleshooting and Manual Tuning Guide Issue 1 COMPANY CONFIDENTIAL Page 3 9 Copyright 2008 Nokia All rights reserved ...

Page 70: ...one is switched on Wait a few minutes and monitor that the backup battery voltage rises Switch off the phone disconnect the main battery and monitor that the voltage of the backup battery decreases Normal behaviour of the voltage is described in the figures below RM 356 BB Troubleshooting and Manual Tuning Guide Page 3 12 COMPANY CONFIDENTIAL Issue 1 Copyright 2008 Nokia All rights reserved ...

Page 71: ...hort circuit and repair or change G2200 if necessary If the voltage stays 0V check resistance VBACK against GND If there is no shortcircuit AVILMA N2200 is faulty Replace N2200 RM 356 BB Troubleshooting and Manual Tuning Guide Issue 1 COMPANY CONFIDENTIAL Page 3 13 Copyright 2008 Nokia All rights reserved ...

Page 72: ...Flash programming troubleshooting Troubleshooting flow RM 356 BB Troubleshooting and Manual Tuning Guide Page 3 14 COMPANY CONFIDENTIAL Issue 1 Copyright 2008 Nokia All rights reserved ...

Page 83: ... feedback The tactile feedback is implemented by using the same vibra that is used for alerting The touch controller includes drivers and the control logic to measure touch pressure The proximity sensor is attached to the upper flex assembly It sends out a beam of IR light and then computes the distance to any nearby objects from the characteristics of the returned reflected signal There is a boot...

Page 84: ...ult automatically without any manual checks If the automatic flow does not provide enough information a manual check can be done to narrow down the cause of the fault Troubleshooting flow Figure 12 Proximity sensor troubleshooting part 1 RM 356 BB Troubleshooting and Manual Tuning Guide Page 3 26 COMPANY CONFIDENTIAL Issue 1 Copyright 2008 Nokia All rights reserved ...

Page 86: ...reen troubleshooting Troubleshooting flow Figure 14 Resistive touch screen troubleshooting RM 356 BB Troubleshooting and Manual Tuning Guide Page 3 28 COMPANY CONFIDENTIAL Issue 1 Copyright 2008 Nokia All rights reserved ...

Page 88: ...he key does not react when a keydome is pressed This kind of failure is caused by mechanical reasons dirt rust Malfunction of several keys at the same time this happens when one or more rows or columns are failing shortcircuit or open connection RM 356 BB Troubleshooting and Manual Tuning Guide Page 3 30 COMPANY CONFIDENTIAL Issue 1 Copyright 2008 Nokia All rights reserved ...

Page 89: ...s not clear start with the Keyboard Test in Phoenix Troubleshooting flow Figure 17 Keymatrix RM 356 BB Troubleshooting and Manual Tuning Guide Issue 1 COMPANY CONFIDENTIAL Page 3 31 Copyright 2008 Nokia All rights reserved ...

Page 90: ...re inside the display module Backlight failure can also be in the connector or in the backlight power source in the main engine of the phone Visual defects pixel Pixel defects can be checked by controlling the display with Phoenix Use both colours black and white on a full screen The display may have some random pixel defects that are acceptable for this type of display The criteria when pixel def...

Page 91: ...he Phone ID 3 Proceed to the display troubleshooting flowcharts Use the Display Test tool in Phoenix to find the detailed fault mode Display troubleshooting Context Before going to display troubleshooting flow make sure that the engine is working and starting up correctly If the problem is in the engine go to baseband troubleshooting RM 356 BB Troubleshooting and Manual Tuning Guide Issue 1 COMPAN...

Page 93: ...cklights The display backlights can be turned ON 100 max and OFF 0 with PWM The two other LED drivers provide current for the keyboard backlights The keyboard backlights can be turned ON OFF separately RM 356 BB Troubleshooting and Manual Tuning Guide Issue 1 COMPANY CONFIDENTIAL Page 3 35 Copyright 2008 Nokia All rights reserved ...

Page 94: ...isplay and keyboard backlights Brightness can be adjusted manually and it affects both the display and keypad Keyboard backlights can be turned ON OFF separately but not without switching on the display lights RM 356 BB Troubleshooting and Manual Tuning Guide Page 3 36 COMPANY CONFIDENTIAL Issue 1 Copyright 2008 Nokia All rights reserved ...

Page 96: ... also required for Light SWAP Engines because ALS is not factory calibrated for Light SWAP When executing the ALS calibration a reference phone that includes calibrated ALS is required The ALS re tuning instructions show why the reference phone is needed Note Make sure that you have completed the display and keyboard backlights troubleshooting before starting the ALS troubleshooting There is an Am...

Page 97: ... light value Cover the sensor and click Read again When covered the luminance reading should be less than after clicking Read without covering the sensor 5 If the component does not give any reading or the reading does not change when sensor is is not covered replace the part Note In RM 356 the ALS module is located on the UI flex assembly ALS calibration must always be done when the UI flex assem...

Page 98: ... 4 for the phone to be calibrated Note Make sure the phone to be calibrated is located in the same place as the reference phone was when luminance reading was taken 6 Calculate and write down co efficient value by division 7 To calibrate ALS the value in the Reference Level textbox needs to be adjusted for both channels until the Co efficient calculated by Phoenix equals the values calculated in s...

Page 99: ...in the same ambient light conditions If the illuminance values differ more than 10 repeat the whole ALS calibration procedure 10 To end the calibration click Close GPS troubleshooting GPS antenna The GPS antenna is located on the back side of the B cover right hand side next to the battery Figure 19 GPS antenna RM 356 BB Troubleshooting and Manual Tuning Guide Issue 1 COMPANY CONFIDENTIAL Page 3 4...

Page 100: ...6200 activity on this pin indicates the GPS is operating GPS RF test points The GPS antenna test pads are located on the top side as shown in figure GPS antenna test pads Checking for a connection between these two test points will confirm that the antenna is working correctly as will performing a radiated CW test J6280 GPS Ant J6281 GPS Ant Gnd RM 356 BB Troubleshooting and Manual Tuning Guide Pa...

Page 101: ...m at the GPS antenna test connector and select Receiver On then probe the GPS RF test points as shown in the figure below Compare RF levels with a known reference phone RM 356 BB Troubleshooting and Manual Tuning Guide Issue 1 COMPANY CONFIDENTIAL Page 3 43 Copyright 2008 Nokia All rights reserved ...

Page 102: ...llowing to test GPS using Phoenix Steps 1 Start Phoenix service software 2 From the File menu select Scan Product and check that the correct product version is displayed RM 356 BB Troubleshooting and Manual Tuning Guide Page 3 44 COMPANY CONFIDENTIAL Issue 1 Copyright 2008 Nokia All rights reserved ...

Page 103: ...t GPS_En_Reset should be high 1 8V and Vdd_Dig 1 1V Vcc_TCXO 2 5V Vcc_PLL VCO 1 35V should be present Turning Receiver Action On will turn on all the RF sections of the ASIC and so all LDOs will be on Note These checks are part of GPS basic checks troubleshooting page 3 51 Figure 23 GPS Control dialog box RM 356 BB Troubleshooting and Manual Tuning Guide Issue 1 COMPANY CONFIDENTIAL Page 3 45 Copy...

Page 104: ...oftware 2 From the Testing menu select GPS Control This opens up GPS Control dialogue box and enables the GPS In the Rx Control window go to the Simple Tests section select Oscillator Test and click Start The Offset result will be returned and should be within the limits of 84Hz RM 356 BB Troubleshooting and Manual Tuning Guide Page 3 46 COMPANY CONFIDENTIAL Issue 1 Copyright 2008 Nokia All rights...

Page 105: ...vice software 2 From the Testing menu select GPS Control This opens up GPS Control dialogue box and enables the GPS In the Rx Control window go to the Simple Tests section select Receiver Self Test and click Start The test returns a PASS FAIL result Note The Oscillator Test should not be run after the Receiver Self Test This sequence of tests may cause the Oscillator test to prolong and result in ...

Page 106: ...and enables the GPS In the CW Test window ensure the input settings are as shown in the figure below Inject 1575 52 MHz tone at the GPS antenna test connector at a level of 110dBm and click Start For Pin 110dBm and negligible other losses the expected result ranges are Galvanic 29 8dB to 38 1dB Radiated 25 8dB to 38 1dB RM 356 BB Troubleshooting and Manual Tuning Guide Page 3 48 COMPANY CONFIDENTI...

Page 107: ...he Oscillator Test It does not necessarily mean that Oscillator Test has failed but carrying out the Oscillator Test page 3 46 Receiver Self Test page 3 47 and CW Test page 3 48 individually will give more valid results RM 356 BB Troubleshooting and Manual Tuning Guide Issue 1 COMPANY CONFIDENTIAL Page 3 49 Copyright 2008 Nokia All rights reserved ...

Page 108: ...oken down into two parts General GPS failure GPS basic checks The GPS failure troubleshooting flow can be followed and where applicable will feed into the basic checks troubleshooting flow RM 356 BB Troubleshooting and Manual Tuning Guide Page 3 50 COMPANY CONFIDENTIAL Issue 1 Copyright 2008 Nokia All rights reserved ...

Page 110: ...GPS basic checks troubleshooting Troubleshooting flow RM 356 BB Troubleshooting and Manual Tuning Guide Page 3 52 COMPANY CONFIDENTIAL Issue 1 Copyright 2008 Nokia All rights reserved ...

Page 111: ...h on phone user interface but unable to detect other Bluetooth devices Open circuit solder joints or detacted component in Bluetooth antenna circuit Repair of Bluetooth antenna circuit Able to turn on FM radio and Bluetooth on phone user interface but unable to detect local FM radio stations with FM headset inserted Open circuit solder joints or detached component in FM antenna circuit Repair of F...

Page 112: ...Bluetooth RF signal is routed through a WLAN front end module Figure 30 BT WLAN antenna The FM radio audio signal is routed to the headset connector through the BB ASIC shared by the phone audio functions RM 356 BB Troubleshooting and Manual Tuning Guide Page 3 54 COMPANY CONFIDENTIAL Issue 1 Copyright 2008 Nokia All rights reserved ...

Page 113: ...the Self Tests window check the following Bluetooth and FM Radio tests ST_LPRF_IF_TEST ST_LPRF_AUDIO_LINES_TEST ST_BT_WAKEUP_TEST ST_RADIO_TEST 7 To run the test click Start Bluetooth BER test Context JBT 9 or SB 6 Bluetooth test box BT box is required to perform a BER test If a BT box is not available Bluetooth functionality can be checked by transferring a file to another Bluetooth phone RM 356 ...

Page 114: ...n the type label on the back of the JBT 3 JBT 6 JBT 9 or SB 6 Bluetooth test box 6 In the Bluetooth LOCALS window write the 12 digit serial number on the Counterpart BT Device Address line 7 Place the BT box near within 10 cm of the phone and click Run BER Test RM 356 BB Troubleshooting and Manual Tuning Guide Page 3 56 COMPANY CONFIDENTIAL Issue 1 Copyright 2008 Nokia All rights reserved ...

Page 115: ...Bluetooth and FM radio module troubleshooting Troubleshooting flow RM 356 BB Troubleshooting and Manual Tuning Guide Issue 1 COMPANY CONFIDENTIAL Page 3 57 Copyright 2008 Nokia All rights reserved ...

Page 117: ...vice software Battery voltage 3 7V Sound source laptop speaker or B K type 4231 calibrator Test procedure Audio can be tested using the Phoenix audio routings option Three different audio loop paths can be activated External microphone to Internal earpiece External microphone to Internal handsfree speaker HP microphone to External earpiece Each audio loop sets routing from the specified input to t...

Page 118: ...00 310 1 2 NA EarN GND External Mic to Internal handsfree HS_MIC GND J2100 6 1000 J2101 Digital Mic to External Earpiece Acoustical input 1kHz sine wave HS_EAR_L GND NA 94 dB SPL 100 NA HS_EAR_R GND Measurement data Earpiece signal Figure 31 Single ended output waveform of the Ext_in_HP_out measurement when earpiece is connected Integrated handsfree signal RM 356 BB Troubleshooting and Manual Tuni...

Page 119: ... is used External output from AV Figure 33 Single ended output waveform of the Ext_in_Ext_out loop External output from AV acoustic input Figure 34 Single ended output waveform of the HP_microphone_in_Ext_out loop RM 356 BB Troubleshooting and Manual Tuning Guide Issue 1 COMPANY CONFIDENTIAL Page 3 61 Copyright 2008 Nokia All rights reserved ...

Page 120: ...Internal earpiece troubleshooting Troubleshooting flow RM 356 BB Troubleshooting and Manual Tuning Guide Page 3 62 COMPANY CONFIDENTIAL Issue 1 Copyright 2008 Nokia All rights reserved ...

Page 121: ...Internal microphone troubleshooting Troubleshooting flow RM 356 BB Troubleshooting and Manual Tuning Guide Issue 1 COMPANY CONFIDENTIAL Page 3 63 Copyright 2008 Nokia All rights reserved ...

Page 122: ...Internal handsfree speaker troubleshooting Troubleshooting flow RM 356 BB Troubleshooting and Manual Tuning Guide Page 3 64 COMPANY CONFIDENTIAL Issue 1 Copyright 2008 Nokia All rights reserved ...

Page 123: ...External microphone troubleshooting Troubleshooting flow RM 356 BB Troubleshooting and Manual Tuning Guide Issue 1 COMPANY CONFIDENTIAL Page 3 65 Copyright 2008 Nokia All rights reserved ...

Page 124: ...External headset earpiece troubleshooting Troubleshooting flow RM 356 BB Troubleshooting and Manual Tuning Guide Page 3 66 COMPANY CONFIDENTIAL Issue 1 Copyright 2008 Nokia All rights reserved ...

Page 125: ...The sound reproduced from the IHF speaker radiates through a single sound hole located at the top of the phone The microphone is located on the left corner of the USB connector at the bottom of the phone For a correct functionality of the phone all sound holes must be always open When the phone is used care must be taken not to close any of those holes with a hand or fingers The phone should be dr...

Page 129: ...ngle SX 4 smart card Enables testing and tuning features External smart card reader Activated FPS 10 OR FPS 21 flash prommer Latest flash update package for FPS 10 or FPS 21 flash prommers CU 4 control unit USB cable from PC USB Port to CU 4 control unit Phone model specific adapter for CU 4 control unit PCS 1 cable to power CU 4 from external power supply XCS 4 modular cable between flash prommer...

Page 130: ...performed before other item s However if all calibrations are selected at the same time there is no need to perform the ADC calibration first 8 Click Calibrate The calibration of the selected item s is carried out automatically The candidates for the new calibration values are shown in the Calculated values column If the new calibration values seem to be acceptable please refer to the following Ca...

Page 133: ...g 4 25 Checking antenna functionality 4 26 WCDMA transmitter troubleshooting 4 27 WCDMA transmitter troubleshooting flowchart 4 30 RF tunings 4 30 Introduction to RF tunings 4 30 Autotuning for BB5 4 31 System mode independent manual tunings 4 32 RF channel filter calibration 4 32 PA power amplifier detection 4 32 GSM receiver tunings 4 33 Rx calibration GSM 4 33 Rx band filter response compensati...

Page 134: ...nnas 4 26 Figure 41 GSM WCDMA antenna 4 27 Figure 42 BT WLAN antenna 4 27 Figure 43 GPS antenna 4 27 Figure 44 Phoenix WCDMA TX control window 4 28 Figure 45 WCDMA power window 4 29 Figure 46 Auto tuning concept with CMU200 4 31 Figure 47 Rf channel filter calibration typical values 4 32 Figure 48 Pop up window for WCDMA2100 4 43 Figure 49 Pop up window for WCDMA2100 4 45 Figure 50 WCDMA power lev...

Page 135: ...ohde Schwarz CMU200 Alternatively a spectrum analyser and an RF generator can be used Some tests in this guide are not possible to perform if this solution is chosen Note A mobile phone WCDMA transmitter should never be tested with full TX power only it possible to perform the measurements in a good RF shielded room Even low power WCDMA transmitters may disturb nearby WCDMA networks and cause prob...

Page 138: ... Because of their location on the PWB the following RF components cannot be replaced without replacing the whole shield frame RM 356 RF troubleshooting Page 4 8 COMPANY CONFIDENTIAL Issue 1 Copyright 2008 Nokia All rights reserved ...

Page 139: ...tage all bands 1 VCTCXO supply R7501 2 5 V 2 AHNEUS supply from DC DC conv C7590 3 2 V 3 FEM supply L7510 3 9 V 4 WCDMA PA supply from DC DC conv C7543 0 V 1 3 V when transmitting 5 Vbat at WCDMA PA C7547 3 9 V 6 Supply input to DC DC conv L7592 3 9 V RM 356 RF troubleshooting Issue 1 COMPANY CONFIDENTIAL Page 4 9 Copyright 2008 Nokia All rights reserved ...

Page 140: ...nix self tests Context Always start the troubleshooting procedure by running the Phoenix self tests If a test fails please follow the diagram below RM 356 RF troubleshooting Page 4 10 COMPANY CONFIDENTIAL Issue 1 Copyright 2008 Nokia All rights reserved ...

Page 141: ...t perform the self tests go to Dead or jammed device troubleshooting in the baseband troubleshooting section Troubleshooting flow RM 356 RF troubleshooting Issue 1 COMPANY CONFIDENTIAL Page 4 11 Copyright 2008 Nokia All rights reserved ...

Page 143: ...RX troubleshooting measurement is RSSI reading This test measures the signal strength of the received signal For GSM RSSI measurements see GSM RX chain activation for manual measurements GSM RSSI measurement page 4 18 For a similar test in WCDMA mode see WCDMA RSSI measurement page 4 21 RM 356 RF troubleshooting Issue 1 COMPANY CONFIDENTIAL Page 4 13 Copyright 2008 Nokia All rights reserved ...

Page 148: ... 46771MHz 67 71kHz offset at 60dBm 1842 86771MHz 67 71kHz offset at 60dBm 1960 06771MHz 67 71kHz offset at 60dBm Steps 1 Set the phone to local mode 2 Activate RSSI reading in Phoenix Testing GSM RSSI reading Results The reading should reflect the level of the signal generator losses 5 dB When varying the level in the range 30 to 102 dBm the reading should then follow within 5 dB RM 356 RF trouble...

Page 150: ...a Phoenix Testing menu choose WCDMA RX Control 2 In the RX control window make the following settings 3 Click Start to activate the settings If the settings are changed later on for example change of channel you have to click Stop and Start again Note Clicking Stop also disables TX control if it was active 4 Set the following RF generator settings RM 356 RF troubleshooting Page 4 20 COMPANY CONFID...

Page 151: ...ment window select Mode RSSI Continuous mode 3 Click Start to perform the measurement Transmitter troubleshooting General instructions for transmitter TX troubleshooting Please note the following before performing transmitter tests TX troubleshooting requires TX operation Do not transmit on frequencies that are in use The transmitter can be controlled in local mode for diagnostic purposes RM 356 R...

Page 152: ...nnector antenna RF measurement equipment or at least a 2 W dummy load otherwise the GSM or WCDMA Power amplifier PA may be damaged GSM transmitter troubleshooting Steps 1 Set the phone to local mode 2 Activate RF controls in Phoenix Testing GSM Rf Controls Use the following settings 3 Check the basic TX parameters i e power phase error modulation and switching spectrum using a communication analys...

Page 153: ...ou can troubleshoot the GSM transmitter for each GSM band separately one band at a time If you want to troubleshoot GSM850 GSM1800 or GSM1900 change the band with the RF controls and set the communication analyser accordingly RM 356 RF troubleshooting Issue 1 COMPANY CONFIDENTIAL Page 4 23 Copyright 2008 Nokia All rights reserved ...

Page 156: ...CDMA antenna is an IFA Inverted F Antenna which is divided into two branches and includes one parasitic element The antenna is functioning normally when it is properly attached to the B cover and the contact springs take proper contact to the PWB The main antenna functionality must also be checked by measuring the transmitted power with RF coupler at GSM900 channel 124 RM 356 RF troubleshooting Pa...

Page 157: ...antenna GPS antenna functionality The GPS antenna is a bended IFA on flex The antenna is functioning normally when it is properly attached to the B cover and it takes proper contact to the C clip on the PWB Figure 43 GPS antenna WCDMA transmitter troubleshooting Steps 1 Set the phone to local mode 2 In Phoenix select Testing WCDMA TX control RM 356 RF troubleshooting Issue 1 COMPANY CONFIDENTIAL P...

Page 158: ...evel option to set the TX power level 4 Click Send to enable the settings and activate TX If settings are changed eg new channel you have to click RF Stop and Send again 5 Use the CMU200 to check the WCDMA power RM 356 RF troubleshooting Page 4 28 COMPANY CONFIDENTIAL Issue 1 Copyright 2008 Nokia All rights reserved ...

Page 160: ...bleshooting flowchart Troubleshooting flow RF tunings Introduction to RF tunings Important Only perform RF tunings if RM 356 RF troubleshooting Page 4 30 COMPANY CONFIDENTIAL Issue 1 Copyright 2008 Nokia All rights reserved ...

Page 161: ...Autotune is designed to align the phone s RF part easier and faster It performs calibrations tunings and measurements of RX and TX The results are displayed and logged in a result file if initiated Hardware set up Hardware requirements for auto tuning PC Windows 2000 XP with GPIB card Power supply Product specific module jig Cables XRS 6 RF cable that requires an additional product specific adapte...

Page 162: ... Rx filter 0 16 31 Steps 1 From the Operating mode drop down menu set mode to Local 2 Choose Tuning Rf Channel Filter Calibration 3 Click Tune 4 To save the values to the PMM Phone Permanent Memory area click Write 5 To close the Rf Channel Filter Calibration window click Close Results Figure 47 Rf channel filter calibration typical values PA power amplifier detection Context The PA detection proc...

Page 163: ...ontext Rx Calibration is used to find out the real gain values of the GSM Rx AGC system and tuning response of the AFC system AFC D A init value and AFC slope Steps 1 Connect the GSM connector of the module jig to a signal generator 2 Start Phoenix service software 3 From the Operating mode drop down menu set mode to Local 4 Choose Tuning GSM Rx Calibration 5 Click Start RM 356 RF troubleshooting ...

Page 164: ...tenuation 7 To perform the tuning click OK 8 Check that the tuning values are within the limits specified in the following table Table 13 RF tuning limits in Rx calibration Min Typ Max Unit GSM850 AFC Value init 200 80 40 200 dB AFC slope 0 108 121 200 dB RSSI AGC 0 106 107 110 114 dB GSM900 AFC Value init 200 105 62 200 dB AFC slope 0 122 200 dB RSSI AGC 0 106 107 110 114 dB GSM1800 RM 356 RF tro...

Page 165: ...pensation GSM Prerequisites Rx calibration must be performed before the Rx band filter response compensation Context On each GSM Rx band there is a band filter in front of the RF ASIC front end The amplitude ripple caused by these filters causes ripple to the RSSI measurement and therefore calibration is needed RM 356 RF troubleshooting Issue 1 COMPANY CONFIDENTIAL Page 4 35 Copyright 2008 Nokia A...

Page 166: ...rator 2 Start Phoenix service software 3 From the Operating mode drop down menu set mode to Local 4 Select GSM900 band 5 Choose Tuning GSM Rx Band Filter Response Compensation 6 Select Tuning mode manual 7 Click Start RM 356 RF troubleshooting Page 4 36 COMPANY CONFIDENTIAL Issue 1 Copyright 2008 Nokia All rights reserved ...

Page 167: ...9 To perform tuning click OK 10 Go through all 9 frequencies The following table will be shown 11 Check that the tuning values are within the limits specified in the following table Min Typ Max Unit GSM850 Ch 118 867 26771 MHz 6 1 2 dB Ch 128 869 26771 MHz 3 0 2 dB RM 356 RF troubleshooting Issue 1 COMPANY CONFIDENTIAL Page 4 37 Copyright 2008 Nokia All rights reserved ...

Page 168: ... MHz 3 0 2 dB Ch 136 962 26771 MHz 6 1 2 dB GSM1800 Ch 497 1802 26771 MHz 6 1 3 dB Ch 512 1805 26771 MHz 3 0 3 dB Ch 535 1809 86771 MHz 3 0 3 dB Ch 606 1824 06771 MHz 3 0 3 dB Ch 700 1842 86771 MHz 3 0 3 dB Ch 791 1861 06771 MHz 3 0 3 dB Ch 870 1876 86771 MHz 3 0 3 dB Ch 885 1879 86771 MHz 3 0 3 dB Ch 908 1884 46771 MHz 6 1 3 dB GSM1900 Ch 496 1927 06771 MHz 6 1 2 dB Ch 512 1930 26771 MHz 3 0 2 dB...

Page 169: ...d analog hardware located after it cause unequal amplitude and phase disturbance to I and Q signal paths Tx IQ tuning balances the I and Q branches Tx IQ tuning must be performed for all GSM bands Steps 1 Start Phoenix service software 2 From the Operating mode drop down menu set mode to Local 3 Choose Tuning GSM Tx IQ Tuning 4 Select Mode Automatic 5 Select Band GSM900 and click Start 6 Click Nex...

Page 170: ...discrete component values the actual transmitter RF gain of each phone is different Tx power level tuning is used to find out mapping factors called power coefficients These adjust the GSM transmitter output power to fulfill the specifications For EDGE transmission the bias settings of the GSM PA are adjusted in order to improve linearity This affects the PA gain and hence the power levels have to...

Page 171: ... time 2ms Trigger Video triggering 10dBm Resolution BW 3MHz Video BW 3MHz Reference level offset sum cable attenuation with module jig attenuation Reference level 33dBm A power meter with a peak power detector can be also used Remember to take the attenuations into account RM 356 RF troubleshooting Issue 1 COMPANY CONFIDENTIAL Page 4 41 Copyright 2008 Nokia All rights reserved ...

Page 172: ...power for all bold power levels to correspond the Target dBm column by pressing or keys 9 If all bold power levels are adjusted click Next to continue with GSM850 EDGE 10 Adjust power for all bold power levels to correspond the Target dBm column by pressing or keys Next actions Continue tuning the bold power levels of the GSM900 GSM1800 and GSM1900 bands You will see this message if finished succe...

Page 173: ...t ways manual tune and sweep mode tune If the signal generator in use supports frequency sweep table the calibration is done in one step Steps 1 For manual tuning set mode to Local in the Operating Mode dropdown menu 2 In the Tuning menu choose WCDMA Rx Calibration 3 Click Start 4 Select Band WCDMA2100 or WCDMA900 5 Click Tune 6 Setup the signal generator to correspond with the values on the Rx Ca...

Page 174: ...0 6 1 5 to 3 5 6 dB Low Frequency 5 0 7 to 4 0 5 High Frequency 5 0 7 to 4 0 5 Alternative steps For sweep mode tuning set Mode to Local in the Operating Mode dropdown menu In the Tuning menu choose WCDMA Rx Calibration Click Start Select Band WCDMA2100 or WCDMA900 Check the Sweep Mode box Click Tune RM 356 RF troubleshooting Page 4 44 COMPANY CONFIDENTIAL Issue 1 Copyright 2008 Nokia All rights r...

Page 175: ...ctor tuning has two purposes to enable the phone to select the correct TxC value accurately in order to produce the required RF level to enable the phone to measure its own transmitter power accurately There are two ways to perform the tuning For an alternative method see Alternative steps Steps 1 From the Operating mode drop down menu set mode to Local 2 Choose Tuning WCDMA Tx AGC Power Detector ...

Page 176: ...ond after 750 us the third after 1250 us and so on for every 500 us until the table is filled Note It must be possible to measure power levels down to 68 dBm The measured power levels must be monotonously decreasing Make sure that the marker is not measuring the level of noise spikes on lower levels RM 356 RF troubleshooting Page 4 46 COMPANY CONFIDENTIAL Issue 1 Copyright 2008 Nokia All rights re...

Page 178: ... table 9 In the Wide Range pane click Calculate 10 In the High Burst pane click Tune 11 Adjust the spectrum analyzer according to the following settings RM 356 RF troubleshooting Page 4 48 COMPANY CONFIDENTIAL Issue 1 Copyright 2008 Nokia All rights reserved ...

Page 179: ...re 51 High burst measurement 13 In the High Burst pane click Calculate 14 Check that the calculated values are within the limits specified in the following table Min Max C0 high 0 5 5 C1 high 50 50 C2 high 400 900 C0 mid 0 7 0 7 C1 mid 0 50 C2 mid 400 900 C0 low 4 4 C1 low 400 440 C2 low 10000 15000 RM 356 RF troubleshooting Issue 1 COMPANY CONFIDENTIAL Page 4 49 Copyright 2008 Nokia All rights re...

Page 180: ... Max power limit check box detector calibration check 20 Setup the spectrum analyzer with the following settings Center frequency 1950 3MHz WCDMA I or 897 4MHz WCDMA VIII Span 0 Hz Reference level offset Cable attenuations adapter attenuation Reference level 24 dBm or 20 dBm depending on the level measured Input attenuation Automatic Resolution bandwidth 5 MHz Video bandwidth 5 MHz RM 356 RF troub...

Page 181: ...tarting this tuning procedure it is necessary to carry out Tx AGC Power Detector Calibration tuning This is because its results will be needed for this tuning operation In the Tuning Settings pane it is possible to edit the numbers of channels used in this tuning operation If the Calibrate Detector Response check box is checked only Tx response is calibrated Zero is written to the power detector c...

Page 182: ...ne Slot 0 is used for detector calibration and slot 1 for Tx calibration 9 Click Next 10 Switch the power meter to Channel Low frequency 11 Read the values from the power meter and enter them to Low power level fields 12 Switch the power meter to Channel High frequency 13 Read the values from the power meter and enter them to High power level fields 14 Click Next 15 Click Calculate The tuned value...

Page 183: ...set voltages in the Tx IQ signal lines and in the actual IQ modulator The tuning improves WCDMA Tx AGC dynamics at low power levels A self calibration routine selects the best combination for internal control words in order to produce minimum LO leakage Steps 1 From the Operating mode drop down menu set mode to Local 2 Choose Tuning WCDMA Tx LO Leakage 3 Click Tune 4 To end the tuning click Close ...

Page 184: ...ls Observe the signal strength Signal should show a signal strength Medium 50 or higher Note Local WLAN environment may affect test results especially if there are many WLAN access points nearby and any of them are using the same WLAN channel as SB 7 If you have problems performing the test consider repeating the test where local networks do not interfere with the lower strength signal of the SB 7...

Page 185: ...t Scan Product and check that the correct product version is displayed 3 From the Testing menu select Self Tests This opens up a Self Test dialogue box as shown below Select the ST_WLAN_TEST check box as shown and then click on the Start button The test turns on the WLAN sets up the SPI interface and then downloads the WLAN firmware into the WLAN module During the download the WLAN acknowledges th...

Page 186: ...st verifies that the WLAN to BT co existence interface signals are properly connected and there are no open circuit or shorts on the four interface signals The co existence interface comprises BT Txconfig BT RF Active BT Priority and BT Frequency RM 356 RF troubleshooting Page 4 56 COMPANY CONFIDENTIAL Issue 1 Copyright 2008 Nokia All rights reserved ...

Page 187: ... in the receive state When OFF WLAN is powered down TX tests From the testing toolbar select WLAN Tx Test option shown below This test can be used to verify TX configuration and functionality The default settings are sufficient for testing the TX operation although other channels and data rates are equally suitable To start the test select the Start option button 1 Measure and record the TX ON cur...

Page 188: ...at the WLAN antenna connection in the phone is not actually tested From the testing toolbar select WLAN Rx Test option shown below This test can be used to verify Rx configuration and functionality To start the test select the Start option button As the WLAN monitors an active WLAN network the Rx test results window will update and show the number of Frames received as well as the Packer error rat...

Page 195: ...erview 5 6 Camera HWA failure troubleshooting 5 8 Main camera failure troubleshooting 5 9 Secondary camera failure troubleshooting 5 10 Flash LED troubleshooting 5 10 RM 356 Camera Module Troubleshooting Issue 1 COMPANY CONFIDENTIAL Page 5 3 Copyright 2008 Nokia All rights reserved ...

Page 197: ...lf tests can be executed from Phoenix test software Connect the device to Phoenix and select Self Tests from the Testing menu RM 356 Camera Module Troubleshooting Issue 1 COMPANY CONFIDENTIAL Page 5 5 Copyright 2008 Nokia All rights reserved ...

Page 198: ... broken down into 2 parts Automatic and manual check The main purpose of the automatic check is to try and identify the fault automatically without any manual checks If the automatic check does not provide enough information manual check can be performed to narrow down the fault RM 356 Camera Module Troubleshooting Page 5 6 COMPANY CONFIDENTIAL Issue 1 Copyright 2008 Nokia All rights reserved ...

Page 202: ...mera failure troubleshooting Troubleshooting flow Flash LED troubleshooting Troubleshooting flow RM 356 Camera Module Troubleshooting Page 5 10 COMPANY CONFIDENTIAL Issue 1 Copyright 2008 Nokia All rights reserved ...

Page 205: ... TV out interface 6 21 Camera concept 6 21 Imaging characteristics 6 21 Imaging HWA 6 22 User interface 6 23 Resistive touch screen 6 23 Proximity sensor 6 23 Touch screen controller 6 25 Display 6 25 Display 6 25 Backlight and illumination 6 26 Digital Ambient Light Sensor ALS 6 27 ASICs 6 28 RAPIDOYAWE 6 28 EM ASIC N2300 Betty 6 28 EM ASIC N2200 Avilma 6 28 Device memories 6 29 Combo memory 6 29...

Page 206: ...r 6 8 Figure 53 Small right and wide left charger plugs 6 9 Figure 54 RM 356 clocking scheme TBD 6 12 Figure 55 FM interface 6 12 Figure 56 Micro B receptacle 6 13 Figure 57 SIM interface 6 14 Figure 58 Accelerometer schematics 6 15 Figure 59 Block diagram of the GPS system 6 17 Figure 60 Block diagram 6 19 Figure 61 Block diagram of TV out connection 6 21 Figure 62 Imaging and video subsystem blo...

Page 207: ...akers circuitry 6 33 Figure 78 External earpiece and microphone circuitry AV connected on the right 6 34 Figure 79 Vibra circuitry 6 35 Figure 80 Accessory AV connector with DAC33 and TPA6130 audio enhancements 6 36 Figure 81 RF block diagram using RF ASIC N7505 6 39 RM 356 System Module and User Interface Issue 1 COMPANY CONFIDENTIAL Page 6 5 Copyright 2008 Nokia All rights reserved ...

Page 209: ...Julie DM 500 N1400 PA GSM Front end module FEM quad band N7520 PA WCDMA N7540 Oscillators VCTCXO 32 768 kHz crystall oscillator G7501 B2200 Memory 1Gb DDR DRAM 2Gb M3 NAND Flash Combo D3000 Back up battery RTC back up battery 311 G2200 FM radio BTHFMRDS2 1M module D6000 Bluetooth BTHFMRDS2 1M module D6000 Battery BL 5J Battery connector Tabby blade interface X2070 RF connector X7501 TV out TV out ...

Page 210: ...ery pull down resistor Figure 52 Battery pin order The battery temperature is estimated by measuring separate battery temperature NTC via the BTEMP line This is located on the main PWB at the place where the phone temperature is closest to the battery temperature Battery connector The battery connector is a blade connector It has three blades BSI Battery size indicator RM 356 System Module and Use...

Page 211: ...mode using back up battery that supplies voltage to RTC in EM ASIC N2200 Normal and extreme voltages Energy management is mainly carried out in the two Application Specific Integrated Circuits ASICs BETTY and AVILMA These two circuits contains a number of regulators In addition there are some external regulators too In the table below normal and extreme voltages are shown when a BL 5J S pack batte...

Page 212: ...e back up battery voltage is too low BACK_UP The main battery is not present or its voltage is too low but back up battery voltage is adequate and the 32 kHz oscillator is running RTC is on PWR_OFF In this mode warm the main battery is present and its voltage is over N2300 BETTY master reset threshold All regulators are disabled PurX is on low state the RTC is on and the oscillator is on PWR_OFF c...

Page 214: ...eless link between a personal computer and the phone Bluetooth connects directly to the Rapido with UART universal asynchronous reveiver transmitter Control signals are connected to Rapido s genios BT_Wakeup UART_Wakeup Reset Bluetooth digital audio is connected to Rapido via PCM interface Clock source for Bluetooth module is a separated 38 4MHz oscillator which is also used for WLAN module BT WLA...

Page 215: ...st device Figure 56 Micro B receptacle CBUS interface CBUS is a main system control bus in BB5 RAPIDO controls the functionality of EM ASICs AVilma N2200 and Betty N2300 with CBUS CBUS is a four wire half duplex master slave interface In HW51 CBUS clock frequency is 4 39 MHz FBUS USB and FBUS have multiplexed interface between EM ASIC 2300 and RAPIDO ECI interface The ECI Enhancement Control Inter...

Page 216: ... not response to the ATR a 3 V interface voltage is used µSD card interface The µSD card is connected to the engine by an external level shifter with an ESD protection filter Supplied voltages VMMC 2 85 V from level shifter VIO 1 8 V from AVILMA The µSD card door state is detected by a detect switch When the door is open the µSD card is powered off Hot swap is supported which means that the card m...

Page 217: ...accelerometer N6501 is connected to I2C One GENIO is reserved for interrupt Figure 58 Accelerometer schematics I O Expander I O Expander is used for control signals that are not time critical such as for keyboard inputs enable reset signals etc It is connected to the I2C bus and has its own interrupt PURX is used as I O Expander s reset I O Expander is powered from VIO 1 8V RM 356 System Module an...

Page 218: ...twork and computes fix internally MS assisted the device receives aiding information from the network and computes pseudorange measurements The measurements are then sent back to the network for the fix calculation At the heart of the GPS solution is GPS5350 GPS receiver IC which has GPS RF receiver and GPS BB processor integrated into a single IC RF section performs down conversion filtering and ...

Page 219: ...ated TCXO G6200 38 4MHz reference clock from Ahneus RF ASIC 32 768kHz Sleepclk The GPS module is powered from VIO 1 8V and VBAT Block diagram The following block diagram shows how the GPS module is connected to the host side Figure 59 Block diagram of the GPS system RM 356 System Module and User Interface Issue 1 COMPANY CONFIDENTIAL Page 6 17 Copyright 2008 Nokia All rights reserved ...

Page 220: ...Cellular engine I O supply VBatt 1 3 P Phone battery power or SMPS power VBatt 2 P Phone battery power VSS P Ground plane WLAN functional description Functional description The WLAN Size 4 0 module is a single component Wireless Local Area Network WLAN radio access technology supporting the IEEE 802 11 standards for low error rate data transfer between mobiles and WLAN networks It incorporates a h...

Page 221: ...cellular phone battery The WLAN SW is downloaded from the host engine when the WLAN is turned on over the dedicated SPI interface The 38 4 MHz reference clock from the host engine is shared with other radio technologies e g Bluetooth and WLAN uses the clock request signal to request the reference clock to be turned on when WLAN needs to use it Block diagram and interface signals The following bloc...

Page 222: ...EQ IN BT priority indication signal Not used for Size 4 0 implementation BT_TX_CO NFx OUT WLAN PTA decision signal to BT CONTROL PMEN IN WLAN Enable signal from Host WLAN_IR Q OUT Host wake up request from WLAN Module Active High CLK_REQ OUT Clock request from WLAN module Active High CLOCKING SLEEP_CLK IN Cellular engine 32 768KHz Sleep Clock Input capacitance is 7Pf max CLK IN System clock for WL...

Page 223: ...ra concept Imaging characteristics The imaging and video baseband subsystem contains the complete imaging system for the cameras The main features of the imaging and video baseband subsystem are Hardware acceleration for image processing Support for the 3 megaixel main camera Support for secondary VGA camera module Support for Flash LEDs and its driver from ADI Key components DM500 imaging acceler...

Page 224: ...host processor using the GPIO Julie_REG_EN depending in the camera usage Block diagram Figure 62 Imaging and video subsystem block diagram Imaging HWA This devices uses a separate imaging and video engine Its main ASIC is DM500 processor N1400 which compresses and decodes camera pictures and video stream It is connected to the Rapido with a CCP2 serial interface for data and SPI interface for cont...

Page 225: ...ts accidental touch signals that could happen when for example user s cheek touches the phone The main parts of the proximity sensor subsystem are Proximity sensor Proximity boot mechanical part Figure 64 Proximity sensor and boot The proximity sensor is located on the upper flex assembly RM 356 System Module and User Interface Issue 1 COMPANY CONFIDENTIAL Page 6 23 Copyright 2008 Nokia All rights...

Page 226: ...computing the distance to any nearby objects from characteristics of the returned reflected signal When the object is under 20 mm distance detection will happen and output will go to high state 1 8V Reference design Figure 66 Proximity sensor reference design and measurement points Pin Signal name Description 1 Anode LED No connection 2 GND Ground 3 OUT Sensor output 0V or 1 8V Push Pull RM 356 Sy...

Page 227: ...essing function to reduce the output bus load The host interface in TSC2004 is I2C Figure 67 Touch screen controller Display Display Rapido has an external display buffer with 8Mbit display RAM The input interfaces for display buffer are ViSSI 12 for image data and LoSSI for commands The data interface between display buffer and display is CDP Compact Display Port display commands are sent by LoSS...

Page 228: ...o three LED zones It can also drive the RGB LED Figure 69 Backlight control for HW keys Display backlights Display backlights consist of two LED chains each containing three LEDs in series powered by TPA61061 switching mode power supply Display backlight brightness is controlled by the CABC signal and the equality of the current and thus the brightness through the two LED chains is ensured by a cu...

Page 229: ...h CABC and user settings adjust the display and keyboard illumination brightness The Ambient Light Sensor is located on the upper flex Figure 71 Digital Ambient Light Sensor location It is connected to the I2C bus and powered by the VOUT 2 5V voltage RM 356 System Module and User Interface Issue 1 COMPANY CONFIDENTIAL Page 6 27 Copyright 2008 Nokia All rights reserved ...

Page 230: ... regulator for USB FBUS Current gauge for battery current measuring LED driver for backlights Digital interface CBUS EM ASIC N2200 Avilma The EM ASIC N2200 includes the following functional blocks Start up logic and reset control Charger detection Battery voltage monitoring 32 768kHz clock with external crystal Real time clock with external backup battery SIM card interface Stereo audio codecs and...

Page 231: ...erter DAC33 DAC33 converts digital audio data to analogue signal and TPA6130 audio amplifier provides an interface for the accessory connector AVilma provides analogue signal for earpiece and for D class audio amplifier TPA2012D2 which drives the integrated stereo handsfree speakers There are four audio transducers Earpiece Two speakers Digital MEMS Microelectromechanical systems microphone Avilma...

Page 232: ...nternal HandsFree IHF call modes A digital MEMS microphone data and clock line are connected to RAPIDOYAWE and the operating voltage 3V is received from Avilma Figure 74 Internal microphone RM 356 System Module and User Interface Page 6 30 COMPANY CONFIDENTIAL Issue 1 Copyright 2008 Nokia All rights reserved ...

Page 233: ...edicated phone accessories External microphone circuitry is biased by Avilma ASIC MicB2 bias voltage output The circuitry provides an asymmetrical connection for the microphone from the AV connector XMICP to Avilma ASIC input mic2p and XMICN to GND RM 356 System Module and User Interface Issue 1 COMPANY CONFIDENTIAL Page 6 31 Copyright 2008 Nokia All rights reserved ...

Page 234: ...nternal earpiece Internal earpiece is used for the HandPortable HP call mode The earpiece capsule is connected to Avilma ASIC s differential output EarP and EarN RM 356 System Module and User Interface Page 6 32 COMPANY CONFIDENTIAL Issue 1 Copyright 2008 Nokia All rights reserved ...

Page 235: ...nal earpiece Galvanic accessories are connected to the AV connector Accessory audio mode is automatically enabled disabled during connection disconnection of dedicated phone accessories The Avilma ASIC provides two output channels in either single ended or differential format The Avilma ASIC outputs XearL and XearLC form the left channel audio output and XearR and XearRC from the right channel aud...

Page 236: ...right Vibra Vibra is used for the vibra alarm function The vibra motor is connected to the Avilma ASIC VibraP and VibraN Pulse Width Modulated PWM outputs RM 356 System Module and User Interface Page 6 34 COMPANY CONFIDENTIAL Issue 1 Copyright 2008 Nokia All rights reserved ...

Page 237: ...m headset Analogue microphone output Mic2P to AVilma Control data ECI Used by AVilma RAPIDOYAWE for accessory identification when the 3 5mm plug is detected TV out composite signal to 75ohm coax cable Composite signal is routed to AV connector through a switch which is controlled by AVVideoCtrl signal when TV is detected Connects FM receiver to headphones which serve as FM antenna Lines 4 5 throug...

Page 238: ...l interfaces Name of Connection Connector reference USB X3300 on engine PWB Charger X2000 Headset AV X2010 SIM X2700 on engine PWB MicroSD X3200 on engine PWB Battery connection X2070 on engine PWB RM 356 System Module and User Interface Page 6 36 COMPANY CONFIDENTIAL Issue 1 Copyright 2008 Nokia All rights reserved ...

Page 239: ...ical characteristics Table 16 Charging interface connections Pin Signal I O Engine connection Notes 1 Vchar In N2300 VCharIn1 2 Charging voltage charger detection Center pin 2 Charge GND Ground Charger ground Table 17 Charging IF electrical characteristics Description Parameter Min Max Unit Notes Vchar V Charge 0 9 V Center pin Vchar I Charge 0 85 A Center pin Charge GND 0 85 A Internal interfaces...

Page 240: ...characteristics Table 18 Back up battery connections Pin name I O Connection Notes L2207 VBack N2200 VBack Back up battery G2200 is connected to N2200 Table 19 Back up battery electrical characteristics Description Parameter Min Typ Max Unit Back Up Battery Voltage Vback 0 2 6 3 3 V RM 356 System Module and User Interface Page 6 38 COMPANY CONFIDENTIAL Issue 1 Copyright 2008 Nokia All rights reser...

Page 241: ...eceived by the phone s antenna The signal is converted to a digital signal and is then transferred further to the baseband eg to the earpiece The receiver functions are implemented in the RF ASIC Signals with different frequencies take different routes being handled by different components The principle of GSM and WCDMA is the same RM 356 System Module and User Interface Issue 1 COMPANY CONFIDENTI...

Page 242: ...y of this signal can be tuned to match the bandwidth of the system in use eg GSM900 The transmitter functions are implemented in the RF ASIC Even though the GSM and WCDMA signals pass different components the principles of the transmission is the same RM 356 System Module and User Interface Page 6 40 COMPANY CONFIDENTIAL Issue 1 Copyright 2008 Nokia All rights reserved ...

Page 249: ...885 2 3540 8 2951 930 2 3720 8 2727 885 4 3541 6 2952 930 4 3721 6 2728 885 6 3542 4 2953 930 6 3722 4 2729 885 8 3543 2 2954 930 8 3723 2 2730 886 3544 2955 931 3724 2731 886 2 3544 8 2956 931 2 3724 8 2732 886 4 3545 6 2957 931 4 3725 6 2733 886 6 3546 4 2958 931 6 3726 4 2734 886 8 3547 2 2959 931 8 3727 2 2735 887 3548 2960 932 3728 2736 887 2 3548 8 2961 932 2 3728 8 2737 887 4 3549 6 2962 93...

Page 250: ...2985 937 3748 2761 892 2 3568 8 2986 937 2 3748 8 2762 892 4 3569 6 2987 937 4 3749 6 2763 892 6 3570 4 2988 937 6 3750 4 2764 892 8 3571 2 2989 937 8 3751 2 2765 893 3572 2990 938 3752 2766 893 2 3572 8 2991 938 2 3752 8 2767 893 4 3573 6 2992 938 4 3753 6 2768 893 6 3574 4 2993 938 6 3754 4 2769 893 8 3575 2 2994 938 8 3755 2 2770 894 3576 2995 939 3756 2771 894 2 3576 8 2996 939 2 3756 8 2772 8...

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Page 252: ...3055 951 3804 2831 906 2 3624 8 3056 951 2 3804 8 2832 906 4 3625 6 3057 951 4 3805 6 2833 906 6 3626 4 3058 951 6 3806 4 2834 906 8 3627 2 3059 951 8 3807 2 2835 907 3628 3060 952 3808 2836 907 2 3628 8 3061 952 2 3808 8 2837 907 4 3629 6 3062 952 4 3809 6 2838 907 6 3630 4 3063 952 6 3810 4 2839 907 8 3631 2 3064 952 8 3811 2 2840 908 3632 3065 953 3812 2841 908 2 3632 8 3066 953 2 3812 8 2842 9...

Page 253: ...3 2 2855 911 3644 3080 956 3824 2856 911 2 3644 8 3081 956 2 3824 8 2857 911 4 3645 6 3082 956 4 3825 6 2858 911 6 3646 4 3083 956 6 3826 4 2859 911 8 3647 2 3084 956 8 3827 2 2860 912 3648 3085 957 3828 2861 912 2 3648 8 3086 957 2 3828 8 2862 912 4 3649 6 3087 957 4 3829 6 2863 912 6 3650 4 3088 957 6 3830 4 RM 356 System Module and User Interface Issue 1 COMPANY CONFIDENTIAL Page 6 51 Copyright...

Page 257: ... Indicator BT Bluetooth CBus MCU controlled serial bus connected to UPP_WD2 UEME and Zocus CCP Compact Camera Port CDMA Code division multiple access CDSP Cellular DSP expected to run at low levels CLDC Connected limited device configuration CMOS Complimentary metal oxide semiconductor circuit low power consumption COF Chip on Foil COG Chip on Glass CPU Central Processing Unit CSD Circuit switched...

Page 258: ...twisted nematic GMSK Gaussian Minimum Shift Keying GND Ground conductive mass GPIB General purpose interface bus GPRS General Packet Radio Service GSM Group Special Mobile Global System for Mobile communication HSDPA High speed downlink packet access HF Hands free HFCM Handsfree Common HS Handset HSCSD High speed circuit switched data data transmission connection faster than GSM HW Hardware I O In...

Page 259: ...ve temperature coefficient temperature sensitive resistor used as a temperature sensor OMA Object management architecture OMAP Operations maintenance and administration part Opamp Operational Amplifier PA Power amplifier PDA Pocket Data Application PDA Personal digital assistant PDRAM Program Data RAM on chip in Tiku Phoenix Software tool of DCT4 x and BB5 PIM Personal Information Management PLL P...

Page 260: ...rements SRAM Static random access memory STI Serial Trace Interface SW Software SWIM Subscriber Wallet Identification Module TCP IP Transmission control protocol Internet protocol TCXO Temperature controlled Oscillator Tiku Finnish for Chip Successor of the UPP TX Radio Transmitter UART Universal asynchronous receiver transmitter UEME Universal Energy Management chip Enhanced version UEMEK See UEM...

Page 261: ... SIM voltage WAP Wireless application protocol WCDMA Wideband code division multiple access WD Watchdog WLAN Wireless local area network XHTML Extensible hypertext markup language Zocus Current sensor used to monitor the current flow to and from the battery RM 356 Glossary Issue 1 COMPANY CONFIDENTIAL Page Glossary 7 Copyright 2008 Nokia All rights reserved ...

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