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4 — RF Troubleshooting

Instructions

Nokia Customer Care

Issue 1

COMPANY CONFIDENTIAL

Page 4 –1

Содержание 2630 RM-298

Страница 2: ...Amendment Record Sheet Amendment No Date Inserted By Comments Issue 1 07 2007 Y Liu RM 298 RM 299 Amendment Record Sheet Page ii COMPANY CONFIDENTIAL Issue 1 Copyright 2007 Nokia All rights reserved ...

Страница 3: ...er 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 purpose...

Страница 4: ...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 all...

Страница 5: ...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 298 RM 299 For your safety Issue 1 COMPANY CONFIDENTIAL Page v Copyright 2007 Nokia All rights reserved ...

Страница 6: ...tteries 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 clog t...

Страница 7: ...e 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 informat...

Страница 8: ...ory 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 whe...

Страница 9: ... 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 298 RM 299 Company Policy Issue ...

Страница 11: ...d Service Concepts 3 Baseband Troubleshooting Instructions 4 RF Troubleshooting Instructions 5 Camera Module Troubleshooting 6 System Module Glossary RM 298 RM 299 Nokia 2630 Service Manual Structure Issue 1 COMPANY CONFIDENTIAL Page xi Copyright 2007 Nokia All rights reserved ...

Страница 15: ...tions 1 7 Battery endurance 1 7 Environmental conditions 1 8 Electrical characteristics 1 8 List of Tables Table 1 Power 1 6 Table 2 Car 1 6 Table 3 Audio 1 7 Table 4 Normal and extreme voltages 1 8 Table 5 Current consumption 1 9 List of Figures Figure 1 RM 298 299 product picture 1 5 RM 298 RM 299 General Information Issue 1 COMPANY CONFIDENTIAL Page 1 3 Copyright 2007 Nokia All rights reserved ...

Страница 17: ...SM1900 networks Figure 1 RM 298 299 product picture Features Hardware features EGSM dualband 900 1800 for EMEA APAC China LTA GSM dualband 850 1900 for LTA Display 128x160 TFT color display Codecs HR FR EFR and AMR IHF Slim Malt 16mm Speaker Internal antenna Easy flash II system connector BT combined with FM radio VGA camera Built in Vibra GPRS Class 6 RM 298 RM 299 General Information Issue 1 COM...

Страница 18: ...va games downloadable To do list and Notes Countdown timer Phonebook image Menu with animated icons 2 font sizes are supported in the editor Calendar in day week month view Chinese lunar Calendar II not for all regions Pulsating light indicating missed call unread messages etc Mobile enhancements Table 1 Power Type Name BL 4B Battery 700 mAh Li Ion AC 3 Compact charger AC 4 Travel charger AC 5 Com...

Страница 19: ...h headset BH 100 HS 79W Nokia bluetooth headset BH 303 HS 80W Nokia bluetooth headset BH 208 HS 84W 88W Nokia bluetooth headset BH 204 HS 85W Nokia bluetooth headset BH 206 HS 86W Nokia bluetooth headset BH 207 MD 4 Mini speakers Technical specifications General specifications Unit DimensionLxWxT mm Weight g Volume cc Transceiver with BL 4B 700mAh Li Ion battery pack 98x44x9 9 70 43 Battery endura...

Страница 20: ... oC and 85 oC No storage An attempt to operate may cause permanent damage Charging allowed 15 oC 55 oC Long term storage conditions 0 oC 85 oC Humidity and water resistance Relative humidity range is 5 to 95 Condensed or dripping water may cause intermittent malfunctions Protection against dripping water has to be implemented in enclosure mechanics Continuous dampness will cause permanent damage t...

Страница 21: ...W shutdown limit in TA c During fast charging of an empty battery this voltage might exceed this value Voltages between 4 20 and 4 60 might appear for a short while d The minimum battery cell voltage required for the reset circuitry to turn on This is not confirmed by measures at pt Table 5 Current consumption Condition Min Typical Max Unit Call MoU E GSM 900 GSM 1800 GSM 1900 208 188 168 mA Idle ...

Страница 25: ...10 2 16 RF test BB tune concept with JBV 1 2 17 EM calibration concept with JBV 1 2 18 RF test BB tune flash concept with JBV 1 FPS 10 2 19 RF BB tune flash concept with MJ 137 FPS 10 2 20 List of Figures Figure 2 POS flash concept with FLS 4S 2 14 Figure 3 POS flash concept with FLS 5 2 15 Figure 4 Flash concept with FPS 10 2 16 Figure 5 RF test BB tune concept with JBV 1 2 17 Figure 6 EM calibra...

Страница 27: ... DC port to the flash prommer FPS 10 CA 111DS Easy flash II cable The cable is used for connecting phone DC port to either POS flashing device FLS 4S or to the PROMMER box FPS 11 CA 112DS Easy flash II cable The CA 112DS easy flash II cable is used for connecting phone DC port to the PROMMER facilities FLS 5 FPS 20 RM 298 RM 299 Service Tools and Service Concepts Issue 1 COMPANY CONFIDENTIAL Page ...

Страница 28: ...8 to connect to RF measurement equipment DA 69 Docking station adapter The docking station adapter is used for this phone in combination with JBV 1 The adapter supports flashing and energy management calibration Features include compatible with JBV 1 easy phone attachment and detachment reliable phone locking switch for detecting phone replaceable SIM interface RM 298 RM 299 Service Tools and Serv...

Страница 29: ...dapters valid for DCT4 products FLS 4S Flash device FLS 4S is a dongle and flash device incorporated into one package developed specifically for POS use FLS 5 Flash device FLS 5 is a dongle and flash device incorporated into one package developed specifically for POS use RM 298 RM 299 Service Tools and Service Concepts Issue 1 COMPANY CONFIDENTIAL Page 2 7 Copyright 2007 Nokia All rights reserved ...

Страница 30: ...e FPS 11 Parallel flash prommer FPS 11 interfaces with PC Control unit Flash adapter Smart card FPS 11 flash prommer features Can flash up to 8 phones at a time controlled by one PC Communication method between PC and FPS 11 is single USB2 0 No need for external power for powering up phones Smart Card reader for SX 2 and SX 4 Updates software Future feature will support all DCT 4 protocols and mod...

Страница 31: ...phone must be taken from the flash prommer Note JBV 1 main electrical functions are adjustable VBATT calibration voltage current measurement limit voltage VCHAR current measurement ICHAR adjustable ADC calibration voltage via BTEM and the BSI signal BTEMP and BSI calibration resistor signal from FBUS to the phone via the parallel jig control via FBUS or USB Flash OK FAIL indication RM 298 RM 299 S...

Страница 32: ...ether with MJ 138 CA 58RS is not a part of the MJ 138 sales package and has to be ordered separately The following table shows the attenuation values for MJ 138 Frequency Hz Loss dB 836600000 0 24 881600000 0 24 897400000 0 25 942400000 0 25 1747800000 0 35 1842800000 0 37 1880000000 0 38 1950000000 0 40 1960000000 0 40 2140000000 0 40 PCS 1 Power cable The PCS 1 power cable DC is used with a dock...

Страница 33: ...nabling the use of the service software when connected to the parallel LPT port of the PC Without the device it is not possible to use the service software Printer or any such device can be connected to the PC through the device if needed RJ 200 Soldering jig The jig is used for soldering and as a rework jig for the system module It is made of lead free rework compatible material RJ 51 Rework jig ...

Страница 34: ... 8 GSM1800 512 10 10 700 10 10 885 10 10 GSM1900 512 10 10 661 10 10 810 10 10 SRT 6 Opening tool SRT 6 is used to open phone covers and B to B connectors Caution Handle the tool with care because the tip is only 0 7 mm in diameter When not in use store in a safe location SS 88 Camera removal tool The camera removal tool SS 88 is used to remove attach the front camera module from to the socket SS ...

Страница 35: ...5 security device used to protect critical features in tuning and testing SX 4 is also needed together with FPS 10 when DCT 4 phones are flashed XCS 4 Modular cable XCS 4 is a shielded one specially shielded conductor modular cable for flashing and service purposes RM 298 RM 299 Service Tools and Service Concepts Issue 1 COMPANY CONFIDENTIAL Page 2 13 Copyright 2007 Nokia All rights reserved ...

Страница 36: ...Connector approximately 610 mm Attenuation for GSM850 900 0 3 0 1 dB GSM1800 1900 0 5 0 1 dB WLAN 0 6 0 1dB Service concepts POS flash concept with FLS 4S Figure 2 POS flash concept with FLS 4S RM 298 RM 299 Service Tools and Service Concepts Page 2 14 COMPANY CONFIDENTIAL Issue 1 Copyright 2007 Nokia All rights reserved ...

Страница 37: ...POS flash concept with FLS 5 Figure 3 POS flash concept with FLS 5 RM 298 RM 299 Service Tools and Service Concepts Issue 1 COMPANY CONFIDENTIAL Page 2 15 Copyright 2007 Nokia All rights reserved ...

Страница 38: ...Flash concept with FPS 10 Figure 4 Flash concept with FPS 10 RM 298 RM 299 Service Tools and Service Concepts Page 2 16 COMPANY CONFIDENTIAL Issue 1 Copyright 2007 Nokia All rights reserved ...

Страница 39: ...test BB tune concept with JBV 1 Figure 5 RF test BB tune concept with JBV 1 RM 298 RM 299 Service Tools and Service Concepts Issue 1 COMPANY CONFIDENTIAL Page 2 17 Copyright 2007 Nokia All rights reserved ...

Страница 40: ... calibration concept with JBV 1 Figure 6 EM calibration concept with JBV 1 RM 298 RM 299 Service Tools and Service Concepts Page 2 18 COMPANY CONFIDENTIAL Issue 1 Copyright 2007 Nokia All rights reserved ...

Страница 41: ...flash concept with JBV 1 FPS 10 Figure 7 RF test BB tune flash concept with JBV 1 FPS 10 RM 298 RM 299 Service Tools and Service Concepts Issue 1 COMPANY CONFIDENTIAL Page 2 19 Copyright 2007 Nokia All rights reserved ...

Страница 42: ...lash concept with MJ 137 FPS 10 Figure 8 RF BB tune flash concept with MJ 137 FPS 10 RM 298 RM 299 Service Tools and Service Concepts Page 2 20 COMPANY CONFIDENTIAL Issue 1 Copyright 2007 Nokia All rights reserved ...

Страница 45: ...23 IHF ringing tone fault 3 24 Microphone fault 3 25 Headset earpiece fault 3 26 Headset microphone fault 3 27 List of Tables Table 6 Connector for External Audio Accessories 3 20 List of Figures Figure 9 Troubleshooting when phone cannot be powered on 3 6 Figure 10 Troubleshooting when phone does not stay on or phone is jammed 3 7 Figure 11 Flash programming fault 3 9 Figure 12 Easy flash program...

Страница 46: ...art 3 24 Figure 26 Microphone fault flow chart 3 25 Figure 27 Headset earpiece fault flow chart 3 26 Figure 28 Headset microphone fault flow chart 3 27 RM 298 RM 299 Baseband Troubleshooting Instructions Page 3 4 COMPANY CONFIDENTIAL Issue 1 Copyright 2007 Nokia All rights reserved ...

Страница 47: ...t use any current at all when the supply is connected and or power key is pressed It is assumed that the voltage supplied is 3 6VDC The UEMCLite will prevent any functionality at battery supply levels below 2 9VDC RM 298 RM 299 Baseband Troubleshooting Instructions Issue 1 COMPANY CONFIDENTIAL Page 3 5 Copyright 2007 Nokia All rights reserved ...

Страница 48: ...ubleshooting flow Figure 9 Troubleshooting when phone cannot be powered on RM 298 RM 299 Baseband Troubleshooting Instructions Page 3 6 COMPANY CONFIDENTIAL Issue 1 Copyright 2007 Nokia All rights reserved ...

Страница 49: ...ice the watchdog register within the UEMCLite the operations watchdog will run out after approximately 32 seconds Unfortunately the service routine can not be measured Troubleshooting flow Figure 10 Troubleshooting when phone does not stay on or phone is jammed RM 298 RM 299 Baseband Troubleshooting Instructions Issue 1 COMPANY CONFIDENTIAL Page 3 7 Copyright 2007 Nokia All rights reserved ...

Страница 50: ...der µBGAs UEMCLite UPP4M FLASH or missing or misaligned components In flash programming error cases the flash prommer can give some information about a fault The fault information messages could be Phone doesn t set FBUS_TX line low Because of the use of uBGA components it is not possible to verify if there is a short circuit in the control and address lines of MCU UPP8M and the memory flash RM 29...

Страница 51: ...Troubleshooting flow Figure 11 Flash programming fault RM 298 RM 299 Baseband Troubleshooting Instructions Issue 1 COMPANY CONFIDENTIAL Page 3 9 Copyright 2007 Nokia All rights reserved ...

Страница 52: ...ollow up the trouble shooting below It is not possible to verify if there is a short circuit in control and address lines of MCU UPP8M and memory flash because BGA package is used in RM 298 299 RM 298 RM 299 Baseband Troubleshooting Instructions Page 3 10 COMPANY CONFIDENTIAL Issue 1 Copyright 2007 Nokia All rights reserved ...

Страница 53: ...Troubleshooting flow Figure 12 Easy flash programming fault RM 298 RM 299 Baseband Troubleshooting Instructions Issue 1 COMPANY CONFIDENTIAL Page 3 11 Copyright 2007 Nokia All rights reserved ...

Страница 54: ...e display will show the message Contact Service They are individual test cases so the below lineup of error hunting s has no chronological order Use common sense and experience to decide which test case to start error hunting at RM 298 RM 299 Baseband Troubleshooting Instructions Page 3 12 COMPANY CONFIDENTIAL Issue 1 Copyright 2007 Nokia All rights reserved ...

Страница 55: ...work the fault can be in either BB or RF Only few signals can be tested since several signals are buried in one or more of the inner layers of the PWB First check that SIM LOCK is not causing the error by using a Test SIM card and connect the phone to a tester RM 298 RM 299 Baseband Troubleshooting Instructions Issue 1 COMPANY CONFIDENTIAL Page 3 13 Copyright 2007 Nokia All rights reserved ...

Страница 56: ...Troubleshooting flow Figure 14 No registering or call RM 298 RM 299 Baseband Troubleshooting Instructions Page 3 14 COMPANY CONFIDENTIAL Issue 1 Copyright 2007 Nokia All rights reserved ...

Страница 57: ... without a SIM card When the power is switched on the phone first check for a 1 8V SIM card and then a 3V SIM card The phone will try this four times where after it will display Insert SIM card Figure 15 Insert SIM card fault RM 298 RM 299 Baseband Troubleshooting Instructions Issue 1 COMPANY CONFIDENTIAL Page 3 15 Copyright 2007 Nokia All rights reserved ...

Страница 58: ...rmal SIM power up is shown below Figure 17 Signal diagram User interface Blank display Context The display does not show any information at all If there is only main or sub display blank the problem mostly exists in individual display Replace related display first For main and sub display blank refer to troubleshooting flow below RM 298 RM 299 Baseband Troubleshooting Instructions Page 3 16 COMPAN...

Страница 59: ...s missing or fading segments or color presentation is incorrect Troubleshooting flow Dead keys Context One or more keys has no function RM 298 RM 299 Baseband Troubleshooting Instructions Issue 1 COMPANY CONFIDENTIAL Page 3 17 Copyright 2007 Nokia All rights reserved ...

Страница 60: ... are 3 kinds of statuses No backlight for both display and keys No backlight for only display No backlight for only keys Troubleshooting flow RM 298 RM 299 Baseband Troubleshooting Instructions Page 3 18 COMPANY CONFIDENTIAL Issue 1 Copyright 2007 Nokia All rights reserved ...

Страница 61: ...eshooting Audio troubleshooting using phoenix Figure 18 Phoenix audio test window RM 298 RM 299 Baseband Troubleshooting Instructions Issue 1 COMPANY CONFIDENTIAL Page 3 19 Copyright 2007 Nokia All rights reserved ...

Страница 62: ...ol data 1 HS GND Ground contact Check microphone using Hp microphone in Ext speaker out loop Steps 1 Connect phone with Phoenix 2 Open audio test window from Testing Audio test as shown in Figure Phoenix audio test window above 3 Select Hp microphone in Ext speaker out 4 Select Acc Detection as Off 5 Select Loop as On 6 Input sound at microphone port for example 94dB SPL 1kHz RM 298 RM 299 Baseban...

Страница 63: ... Loop as On 6 Input signal to HS MIC as shown in Figure 4 pole jack plug for audio accessory above for example 100mVpp 1kHz 7 Check if sound is heard in the earpiece Figure 21 Test arrangement for of earpiece Check IHF ringing tone function using Buzzer Steps 1 Connect phone with Phoenix 2 Open audio test window from Testing Audio test as shown in Figure Phoenix audio test window above 3 In Buzzer...

Страница 64: ...control window from Testing Vibra control as shown in the figure below 3 Select suitable intensity value for example 53 4 Select Vibra state as Enabled 5 Click Write 6 Check if Vibra works Figure 23 Checking vibra function by using vibra control RM 298 RM 299 Baseband Troubleshooting Instructions Page 3 22 COMPANY CONFIDENTIAL Issue 1 Copyright 2007 Nokia All rights reserved ...

Страница 65: ...arpiece fault Troubleshooting flow Figure 24 Earpiece fault flow chart RM 298 RM 299 Baseband Troubleshooting Instructions Issue 1 COMPANY CONFIDENTIAL Page 3 23 Copyright 2007 Nokia All rights reserved ...

Страница 66: ...ng tone fault Troubleshooting flow Figure 25 IHF ringing tone fault flow chart RM 298 RM 299 Baseband Troubleshooting Instructions Page 3 24 COMPANY CONFIDENTIAL Issue 1 Copyright 2007 Nokia All rights reserved ...

Страница 67: ...rophone fault Troubleshooting flow Figure 26 Microphone fault flow chart RM 298 RM 299 Baseband Troubleshooting Instructions Issue 1 COMPANY CONFIDENTIAL Page 3 25 Copyright 2007 Nokia All rights reserved ...

Страница 68: ...arpiece fault Troubleshooting flow Figure 27 Headset earpiece fault flow chart RM 298 RM 299 Baseband Troubleshooting Instructions Page 3 26 COMPANY CONFIDENTIAL Issue 1 Copyright 2007 Nokia All rights reserved ...

Страница 69: ...rophone fault Troubleshooting flow Figure 28 Headset microphone fault flow chart RM 298 RM 299 Baseband Troubleshooting Instructions Issue 1 COMPANY CONFIDENTIAL Page 3 27 Copyright 2007 Nokia All rights reserved ...

Страница 73: ... 32 Measurement points in the receiver 4 34 RM 299 transmitter 4 35 General instructions for GSM 850 TX troubleshooting 4 35 Troubleshooting diagram for GSM850 transmitter 4 37 GSM850 TX output power 4 38 General instructions for GSM1900 TX troubleshooting 4 40 Troubleshooting diagram for GSM1900 transmitter 4 42 GSM1900 TX output power 4 43 Synthesizer troubleshooting 4 45 Introduction 4 45 Troub...

Страница 74: ... Figure 57 GSM850 receiver troubleshooting 4 29 Figure 58 850 RX I Q signal waveform 4 30 Figure 59 GSM 1900 RF controls window 4 31 Figure 60 GSM1900 receiver troubleshooting 4 32 Figure 61 1900 RX I Q signal waveform 4 33 Figure 62 RX measurements point of the control voltages to FEM N7700 4 34 Figure 63 Measurement points at the RX SAW Filters Z7600 Z7602 4 34 Figure 64 RX I Q signals 4 35 Figu...

Страница 75: ... 51 Figure 86 FM module output signal 4 51 Figure 87 BER test result 4 53 Figure 88 Bluetooth self tests in Phoenix 4 54 Figure 89 Antenna troubleshooting 4 56 RM 298 RM 299 RF Troubleshooting Instructions Issue 1 COMPANY CONFIDENTIAL Page 4 5 Copyright 2007 Nokia All rights reserved ...

Страница 77: ...ring RF parameters on the antenna pad Remember to include the loss in the module repair jig when realigning the phone So ESD protection must be applied during repair ground straps and ESD soldering irons Mjoelner and Bifrost are moisture sensitive so parts must be pre baked prior to soldering Apart from key components described in this document there are a lot of discrete components resistors indu...

Страница 78: ...MHz crystal N6000 BT FM IC Z6000 BT SAW filter Refer to the picture below for measuring points at the UEM D2200 Figure 30 Supply points at UEM D2200 RM 298 RM 299 RF Troubleshooting Instructions Page 4 8 COMPANY CONFIDENTIAL Issue 1 Copyright 2007 Nokia All rights reserved ...

Страница 79: ...RF IC N7600 Figure 32 Supply point at BT FM IC N6000 Auto tuning This phone can be tuned automatically RM 298 RM 299 RF Troubleshooting Instructions Issue 1 COMPANY CONFIDENTIAL Page 4 9 Copyright 2007 Nokia All rights reserved ...

Страница 80: ...hown in Phoenix 2 The first time you are using automatic tuning on this phone model on this computer you will have to Set loss for cables and jigs 3 To go to autotune select Tuning Alt U Auto Tune Alt A from the menu 4 If you need more assistance please refer to the Phoenix Help RM 298 receiver General instructions for GSM900 RX troubleshooting Steps 1 Connect the phone to a PC with the module rep...

Страница 82: ...eshooting Results By measuring with an oscilloscope at RXIP or RXQP on a working GSM900 receiver this picture should be seen Signal amplitude peak peak 108mV DC offset 1 0V RM 298 RM 299 RF Troubleshooting Instructions Page 4 12 COMPANY CONFIDENTIAL Issue 1 Copyright 2007 Nokia All rights reserved ...

Страница 83: ...ile and Scan product 4 Wait a while for the PC to read the information from the phone 5 Select Testing and RF Controls 6 Set the parameters as follows i Active Unit RX ii Band GSM 1800 iii Operation Mode Continuous mode iv RX TX Channel 700 v AGC 8 FEG_ON DTOS_ON BB_6 Vgain_36 Results The setup should now look like this RM 298 RM 299 RF Troubleshooting Instructions Issue 1 COMPANY CONFIDENTIAL Pag...

Страница 85: ...leshooting Results By measuring with an oscilloscope at RXIP or RXQP on a working GSM1800 receiver this picture should be seen Signal amplitude peak peak 114mV DC offset 1 0V RM 298 RM 299 RF Troubleshooting Instructions Issue 1 COMPANY CONFIDENTIAL Page 4 15 Copyright 2007 Nokia All rights reserved ...

Страница 86: ...form Measurement points in the receiver Figure 39 RX measurements point of the control voltages to FEM N7700 RM 298 RM 299 RF Troubleshooting Instructions Page 4 16 COMPANY CONFIDENTIAL Issue 1 Copyright 2007 Nokia All rights reserved ...

Страница 87: ...ttenuator at least 10dB before connected to the measurement equipment otherwise the PA may be damaged 2 Start Phoenix and establish a connection to the phone with the data cable e g FBUS 3 Select File and Scan product 4 Wait a while for the PC to read the information from the phone 5 Select Testing and RF Controls 6 Set the parameters as follows i Band GSM 900 RM 298 RM 299 RF Troubleshooting Inst...

Страница 88: ...vel 5 iv TX Data Type Random Results The setup should now look like this Figure 42 GSM 900 RF controls window RM 298 RM 299 RF Troubleshooting Instructions Page 4 18 COMPANY CONFIDENTIAL Issue 1 Copyright 2007 Nokia All rights reserved ...

Страница 89: ...00 tarnsmitter troubleshooting GSM900 TX output power Measure the output power of the phone it should be about 32 5dBm Remember the cable loss is about 0 3dB RM 298 RM 299 RF Troubleshooting Instructions Issue 1 COMPANY CONFIDENTIAL Page 4 19 Copyright 2007 Nokia All rights reserved ...

Страница 92: ...e damaged 2 Start Phoenix and establish a connection to the phone with the data cable e g FBUS 3 Select File and Scan product 4 Wait a while for the PC to read the information from the phone 5 Select Testing and RF Controls 6 Set the parameters as follows i Band GSM 1800 ii Active Unit TX iii TX Power Level 0 iv TX Data Type Random Results The setup should now look like this RM 298 RM 299 RF Troub...

Страница 94: ...800 transmitter troubleshooting GSM1800 TX output power Measure the output power of the phone it should be about 30 5dBm Remember the cable loss is about 0 5dB RM 298 RM 299 RF Troubleshooting Instructions Page 4 24 COMPANY CONFIDENTIAL Issue 1 Copyright 2007 Nokia All rights reserved ...

Страница 95: ...Figure 51 TX I O signal Figure 52 VC1 VC2 VC3 signals RM 298 RM 299 RF Troubleshooting Instructions Issue 1 COMPANY CONFIDENTIAL Page 4 25 Copyright 2007 Nokia All rights reserved ...

Страница 97: ...ect File and Scan product 4 Wait a while for the PC to read the information from the phone 5 Select Testing and RF Controls 6 Set the parameters as follows i Active Unit RX ii Band GSM 850 iii Operation Mode Continuous mode iv RX TX Channel 190 v AGC 8 FEG_ON DTOS_ON BB_6 Vgain_36 Results The setup should now look like this RM 298 RM 299 RF Troubleshooting Instructions Issue 1 COMPANY CONFIDENTIAL...

Страница 99: ... diagram for GSM850 receiver Troubleshooting flow Figure 57 GSM850 receiver troubleshooting RM 298 RM 299 RF Troubleshooting Instructions Issue 1 COMPANY CONFIDENTIAL Page 4 29 Copyright 2007 Nokia All rights reserved ...

Страница 100: ...nd establish a connection to the phone with the data cable e g FBUS 3 Select File and Scan product 4 Wait a while for the PC to read the information from the phone 5 Select Testing and RF Controls 6 Set the parameters as follows i Active Unit RX ii Band GSM 1900 iii Operation Mode Continuous mode iv RX TX Channel 661 v AGC 8 FEG_ON DTOS_ON BB_6 Vgain_36 Results The setup should now look like this ...

Страница 102: ...diagram for GSM1900 receiver Troubleshooting flow Figure 60 GSM1900 receiver troubleshooting RM 298 RM 299 RF Troubleshooting Instructions Page 4 32 COMPANY CONFIDENTIAL Issue 1 Copyright 2007 Nokia All rights reserved ...

Страница 103: ... a working GSM1900 receiver this picture should be seen Signal amplitude 108 mVp p DC offset 1 0V Figure 61 1900 RX I Q signal waveform RM 298 RM 299 RF Troubleshooting Instructions Issue 1 COMPANY CONFIDENTIAL Page 4 33 Copyright 2007 Nokia All rights reserved ...

Страница 104: ...RX measurements point of the control voltages to FEM N7700 Figure 63 Measurement points at the RX SAW Filters Z7600 Z7602 RM 298 RM 299 RF Troubleshooting Instructions Page 4 34 COMPANY CONFIDENTIAL Issue 1 Copyright 2007 Nokia All rights reserved ...

Страница 105: ...A may be damaged 2 Start Phoenix and establish a connection to the phone with the data cable e g FBUS 3 Select File and Scan product 4 Wait a while for the PC to read the information from the phone 5 Select Testing and RF Controls 6 Set the parameters as follows i Band GSM 850 ii Active Unit TX iii TX Power Level 5 iv TX Data Type Random Results The setup should now look like this RM 298 RM 299 RF...

Страница 107: ...agram for GSM850 transmitter Troubleshooting flow Figure 66 GSM850 transmitter troubleshooting RM 298 RM 299 RF Troubleshooting Instructions Issue 1 COMPANY CONFIDENTIAL Page 4 37 Copyright 2007 Nokia All rights reserved ...

Страница 108: ...the phone it should be about 32 5 dBm Remember the cable loss is about 0 3 dB Figure 67 TX I O signal Figure 68 VC1 VC3 signal RM 298 RM 299 RF Troubleshooting Instructions Page 4 38 COMPANY CONFIDENTIAL Issue 1 Copyright 2007 Nokia All rights reserved ...

Страница 109: ...Figure 69 TXP signal Figure 70 TXC signals at PCL5 RM 298 RM 299 RF Troubleshooting Instructions Issue 1 COMPANY CONFIDENTIAL Page 4 39 Copyright 2007 Nokia All rights reserved ...

Страница 110: ...otherwise the PA may be damaged 2 Start Phoenix and establish a connection to the phone with the data cable e g FBUS 3 Select File and Scan product 4 Wait a while for the PC to read the information from the phone 5 Select Testing and RF Controls 6 Set the parameters as follows i Band GSM 1900 ii Active Unit TX iii TX Power Level 0 iv TX Data Type Random RM 298 RM 299 RF Troubleshooting Instruction...

Страница 111: ...7 The setup should now look like this Figure 72 GSM 1900 RF controls window RM 298 RM 299 RF Troubleshooting Instructions Issue 1 COMPANY CONFIDENTIAL Page 4 41 Copyright 2007 Nokia All rights reserved ...

Страница 112: ...gram for GSM1900 transmitter Troubleshooting flow Figure 73 GSM1900 transmitter troubleshooting RM 298 RM 299 RF Troubleshooting Instructions Page 4 42 COMPANY CONFIDENTIAL Issue 1 Copyright 2007 Nokia All rights reserved ...

Страница 113: ...he phone it should be about 29 1dBm Remember the cable loss is about 0 5dB Figure 74 TX I O signal Figure 75 VC1 VC2 VC3 signals RM 298 RM 299 RF Troubleshooting Instructions Issue 1 COMPANY CONFIDENTIAL Page 4 43 Copyright 2007 Nokia All rights reserved ...

Страница 114: ...Figure 76 TXP signal Figure 77 TXC signals at PCL0 RM 298 RM 299 RF Troubleshooting Instructions Page 4 44 COMPANY CONFIDENTIAL Issue 1 Copyright 2007 Nokia All rights reserved ...

Страница 115: ...this oscillator is set by an external crystal B7600 The reference oscillator is used as a reference frequency for the PLL synthesizer and as the system clock for the Baseband The 26MHz signal is divided by 2 to achieve 13MHz inside the UPP IC D2800 The 26MHz signal from the VCXO can be measured by probing R2900 The level at this point is approx 770mVpp Frequency of this oscillator is adjusted by c...

Страница 117: ...ubleshooting diagram for PLL synthesizer Figure 80 PLL Troubleshooting diagram RM 298 RM 299 RF Troubleshooting Instructions Issue 1 COMPANY CONFIDENTIAL Page 4 47 Copyright 2007 Nokia All rights reserved ...

Страница 118: ... settings Steps 1 Connect the phone to a PC with the module repair jig 2 Start Phoenix and establish a connection to the phone with the data cable e g FBUS 3 Phoenix settings shall be as follows RM 298 RM 299 RF Troubleshooting Instructions Page 4 48 COMPANY CONFIDENTIAL Issue 1 Copyright 2007 Nokia All rights reserved ...

Страница 119: ... the FM module 5 Signal generator settings shall be as follows i Frequency 98 MHz ii Level 60 dBm iii FM deviation 75 kHz iv LFGEN frequency 1 kHZ RM 298 RM 299 RF Troubleshooting Instructions Issue 1 COMPANY CONFIDENTIAL Page 4 49 Copyright 2007 Nokia All rights reserved ...

Страница 120: ...ng diagram for FM radio Troubleshooting flow Figure 83 FM circuit troubleshooting diagram RM 298 RM 299 RF Troubleshooting Instructions Page 4 50 COMPANY CONFIDENTIAL Issue 1 Copyright 2007 Nokia All rights reserved ...

Страница 121: ... Figure 84 Bluetooth and FM radio test points Figure 85 XAUDIO output signal Figure 86 FM module output signal RM 298 RM 299 RF Troubleshooting Instructions Issue 1 COMPANY CONFIDENTIAL Page 4 51 Copyright 2007 Nokia All rights reserved ...

Страница 122: ...oth settings for Phoenix Steps 1 Start Phoenix service software 2 From the File menu choose Open Product and then choose the correct type designator from the Product list 3 Place the phone to a flash adapter in the local mode 4 Choose Testing Bluetooth LOCALS 5 Locate JBT 9 s serial number 12 digits found in the type label on the back of JBT 9 In addition to JBT 9 also SB 6 JBT 3 and JBT 6 Bluetoo...

Страница 123: ... flash adapter 4 From the Mode drop down menu set mode to Local 5 Choose Testing Self Tests 6 In the Self Tests window check the following Bluetooth related tests ST_LPRF_IF_TEST ST_LPRF_AUDIO_LINES_TEST ST_BT_WAKEUP_TEST RM 298 RM 299 RF Troubleshooting Instructions Issue 1 COMPANY CONFIDENTIAL Page 4 53 Copyright 2007 Nokia All rights reserved ...

Страница 124: ...ting Context Basic encoding rules BER is a self identifying and self delimiting encoding scheme which means that each data value can be identified extracted and decoded individually RM 298 RM 299 RF Troubleshooting Instructions Page 4 54 COMPANY CONFIDENTIAL Issue 1 Copyright 2007 Nokia All rights reserved ...

Страница 126: ...ooting Antenna troubleshooting diagram Troubleshooting flow Figure 89 Antenna troubleshooting RM 298 RM 299 RF Troubleshooting Instructions Page 4 56 COMPANY CONFIDENTIAL Issue 1 Copyright 2007 Nokia All rights reserved ...

Страница 129: ...king hands 5 7 Figure 92 Near objects get skewed when taking images from a moving vehicle 5 7 Figure 93 Noisy image taken in 70 degrees Celsius 5 8 Figure 94 Image taken against light 5 8 Figure 95 Flicker in an image object illuminated by strong fluorescent light 5 9 Figure 96 A lens reflection effect caused by sunshine 5 9 Figure 97 Good image taken indoors 5 10 Figure 98 Good image taken outdoo...

Страница 131: ...ce When checking for possible errors in camera functionality knowing what error is suspected significantly helps the testing by narrowing down the amount of test cases The following types of image quality problems may be expected to appear Dust black spots Lack of sharpness Bit errors Terms Dynamic range Camera s ability to capture details in dark and bright areas of the scene simultaneously Expos...

Страница 132: ...jects In practice the operation is such that close objects may be noticed to get more blurred when distance to them is shorter than 20 cm The lack of sharpness is first visible in full resolution images If observing just the viewfinder even very close objects may seem to appear sharp This is normal do not change the camera module Figure 90 Blurred image Target too close The amount of light availab...

Страница 133: ...most CMOS camera types and usually cannot be avoided The movement of camera or object sometimes cause blurring indoors or in dim lighting conditions because of long exposure time This is normal do not change the camera module Figure 92 Near objects get skewed when taking images from a moving vehicle RM 298 RM 299 Camera Module Troubleshooting Issue 1 COMPANY CONFIDENTIAL Page 5 7 Copyright 2007 No...

Страница 134: ...es may be very dark depending on the setting If the display contrast is set too bright image contrast appears bad and faint This problem is solved by setting the display contrast correctly This is normal behaviour do not change the camera module Basic rules of photography especially shooting against light Because of dynamic range limitations taking images against bright light might cause either sa...

Страница 135: ...tificial illumination level This is normal behaviour do not change the camera module Figure 95 Flicker in an image object illuminated by strong fluorescent light Bright light outside of image view Especially the sun can cause clearly visible lens glare phenomenon and poor contrast in images This happens because of undesired reflections inside the camera optics Generally this kind of reflections ar...

Страница 136: ...tanding of the actual mechanical structure of the module Table 7 Camera specifications Sensor type CMOS Sensor Photo detectors 0 3 million F number Aperture f 2 8 Focal length 1 78 mm Focus range 20 cm to infinity Still Image resolutions 640x480 320x240 160x120 Still images file format EXIF JPEG jpg RM 298 RM 299 Camera Module Troubleshooting Page 5 10 COMPANY CONFIDENTIAL Issue 1 Copyright 2007 N...

Страница 137: ... capabilities of the device Video file format 3GPP 3gp Exposure Automatic White Balance Automatic Colours 16 7 million 24 bit Capture Modes Night mode Sequence mode self timer Figure 99 Camera module cross section and assembly principle RM 298 RM 299 Camera Module Troubleshooting Issue 1 COMPANY CONFIDENTIAL Page 5 11 Copyright 2007 Nokia All rights reserved ...

Страница 138: ... protection window Dynamic camera configuration DCC Dynamic Camera Configuration is a system to allow final camera tuning values to be programmed on Service Centre DCC data generated for a camera hardware is set by Camera Entity IQ department and placed into global DCC settings database Service centres could replace a defective module with a spare one to get camera function recovered by updating D...

Страница 139: ...ng happens try to reduce illumination level Use JPEG image format for analysing and set the image quality parameter to High Quality Black spots in an image are caused by dirt particles trapped inside the optical system Clearly visible and sharp edged black dots in an image are typically dust particles on the image sensor These spots are searched for in the manufacturing phase but it is possible th...

Страница 140: ... air the possibility of damaging the lens is substantial Always check the image sharpness after removing dust Testing camera image sharpness Symptoms and diagnosis If pictures taken with a device are claimed to be blurry there are six possible sources for the problem 1 The protection window is fingerprinted soiled dirty visibly scratched or broken 2 The photographed object is too close the camera ...

Страница 141: ...s at least 65000 colors 16 bit have to be used True colour 24 bit 16 million colours or 32 bit full colour setting is recommended Next actions If there appears to be a clearly noticeable difference between the reference image and the test images the module might have a misfocused lens change the module Re check the resolution after changing the camera module If the changed module produces the same...

Страница 142: ...problem between the camera module and the phone main PWB Very black images and viewfinder may also be caused by failure of the 2 8V supply to the camera You should check the camera assembly and connector contacts If the fault is in the camera module bit errors are typically visible only when using some specific image resolution For example in case of a viewfinder fault the error might exist but is...

Страница 143: ...shooting flow Note Make sure that the phone has the latest software before continuing RM 298 RM 299 Camera Module Troubleshooting Issue 1 COMPANY CONFIDENTIAL Page 5 17 Copyright 2007 Nokia All rights reserved ...

Страница 144: ...Camera baseband HW troubleshooting Troubleshooting flow RM 298 RM 299 Camera Module Troubleshooting Page 5 18 COMPANY CONFIDENTIAL Issue 1 Copyright 2007 Nokia All rights reserved ...

Страница 145: ...Camera viewfinder troubleshooting Troubleshooting flow RM 298 RM 299 Camera Module Troubleshooting Issue 1 COMPANY CONFIDENTIAL Page 5 19 Copyright 2007 Nokia All rights reserved ...

Страница 146: ...Bad camera image quality troubleshooting Troubleshooting flow RM 298 RM 299 Camera Module Troubleshooting Page 5 20 COMPANY CONFIDENTIAL Issue 1 Copyright 2007 Nokia All rights reserved ...

Страница 149: ... processing 6 21 Receiver general description 6 21 VCXO and PLL 6 22 List of Tables Table 8 Voltage limits 6 8 Table 9 Connector for External Audio Accessories 6 10 Table 10 AC and DC Characteristics of BB4 0 LiteV2 RF Base band Digital Signals 6 12 Table 11 AC and DC Characteristics of RF Base band Analogue Signals 6 14 Table 12 SIM interface 6 17 Table 13 System connector 6 18 Table 14 Battery I...

Страница 150: ...interface block diagram 6 17 Figure 114 BL 4B battery pack contacts 6 19 Figure 115 PWB top side component placement 6 20 Figure 116 PWB bottom side component placement 6 20 RM 298 RM 299 System Module Page 6 4 COMPANY CONFIDENTIAL Issue 1 Copyright 2007 Nokia All rights reserved ...

Страница 151: ...re situated at the UI side which is on the opposite side of the engine board The 2CP is the engine module of the mobile device and the 2CQ is the UI module of module of the mobile device Figure 106 Module block diagram RM 298 RM 299 System Module Issue 1 COMPANY CONFIDENTIAL Page 6 5 Copyright 2007 Nokia All rights reserved ...

Страница 152: ...splay with 65536 colors and 128 x 160 pixels with backlighting The keypad module features a function keymat with a 4 way navigation key with a center selection key UPP UPP Universal Phone Processor is the digital ASIC of the DCT4 generation base band UPP8M includes 4 5 MBit internal RAM 16 32 bit RISC MCU core UPP8Mv6 11 includes ARM7TDMI rev4 16 32 bit RISC MCU core TI Lead3 16 bit DSP phase2 cor...

Страница 153: ... in the illustration below Figure 107 Power connection diagram All connectors going to the outside world have filter components ESD protection and EMC reduction The Digital Data lines on SIM have special dedicated filter ASIP The below figure show the SIM filtering Figure 108 SIM filtering RM 298 RM 299 System Module Issue 1 COMPANY CONFIDENTIAL Page 6 7 Copyright 2007 Nokia All rights reserved ...

Страница 154: ...rs wanted settings VR regulators can be disabled enabled or forced into low quiescent current mode VR2 is always enabled in Active mode for system clock chain supply Sleep In sleep mode VCTCXO is shut down and 32 kHz sleep clock oscillator is used as reference clock for the base band Charging Charging can be performed in any operating mode The battery type size is indicated by a resistor inside th...

Страница 155: ...er the phone s internal microphone MIC1 inputs or an external microphone that connects to the carkit In these cases UEMcLite is capable of switching between MIC1 and MIC2 The audio control is taken care of by UEMcLite which contains the MCU and audio codec UPP contains DSP blocks and handling and processing of the audio signals Input and output selection and gain control is performed inside UEMcLi...

Страница 156: ...ves to place the high current consuming portions of the circuit into the sleep mode Periodically the device is awakened by this internal logic and the magnetic flux from the HALL element is evaluated against the predefined thresholds If the flux densityisaboveorbelowtheBOP BRPthresholds theoutputtransistorisdriventochangestatesaccordingly While in the sleep cycle the output transistor is latched i...

Страница 158: ...nIO5 0 0 0 4 V Load Resistance 10 kW Load Capacitanc e 20 pF Timing Accuracy symbo l TXP2 UPP RF IC 1 1 38 1 88 V Depends of the RF design GenIO6 0 0 0 4 V Load Resistance 10 kW Load Capacitanc e 20 pF Timing Accuracy symbo l RFBusEn1 X UPP RF IC 1 1 38 1 88 V RFIC Chip SelX 0 0 0 4 V Internal PU Current 50 uA Load resistance 10 kW Load capacitanc e 20 pF RM 298 RM 299 System Module Page 6 12 COMP...

Страница 159: ... Load resistance 10 kW Load capacitanc e 20 pF Data frequency 13 MHz GENIO3 UEMCLit e RF IC 1 2 78 V RF Control 0 V Depends of the RF design Load resistance kW Output current 4 mA GENIO4 UEMCLit e RF IC 1 2 78 V Audio clock input in UEMCLiteV3 and LittiV2 0 V Load resistance kW Output current 4 mA GENIO5 UEMCLit e RF IC 1 2 78 V RF Control 0 V Depends of the RF design Load resistance kW Output cur...

Страница 160: ...Gnd VCTCXO UPP DC Level 0 V System Clock slicer Ref GND not separated from pwb GND layer RXIP RXIN RXQP RXQN RF IC UEMCL ite Voltage swing static 1 4 1 45 Vpp Differential positive negative in phase and quadrature Rx Signals DC level 1 3 1 35 1 4 V I Q amplitude mismatch 0 2 dB I Q phase mismatch 0 5 0 5 deg TXIP TXIN TXQP TXQN UEMCLit e RF IC Differential voltage swing static 2 25 2 45 Vpp Differ...

Страница 161: ...s VCXOTEMP RF IC UEMCL ite Input voltage range 0 2 7 V Input resistance 900 6000 Ohm Resolution 10 bits PATEMP RF IC UEMCL ite Voltage at 20oC 1 57 V Usage depends of the RF design LCD interface The display is controlled by phone processor UPP The main LCD module is connected to the PWB by a 24 pin board to board connector The sub LCD module is connected to the PWB by a 10 pin board to board conne...

Страница 162: ...the SIM In addition the SIMCardDet signal is connected to UEMCLite The detection is taken from the BSI signal which detects the removal of the battery The monitoring of the BSI signal is done by a comparator inside UEMCLite The comparator offset is such that the comparator outputs do not alter state as long as the battery is connected The threshold voltage is calculated from the battery size speci...

Страница 163: ...5xVSIM 1 8V Vih 0 7xVSI M VSIM V SIM data input 1 8V Vil 0 0 15xVSIM Trise Tfall max 1us 3V Vil 0 7xVSI M VSIM 3V Vil 0 0 15xVSIM 5 NC Not connected 6 GND GND 0 0 V Ground VSIM specified in regulator section in this document Figure 113 SIM interface block diagram RM 298 RM 299 System Module Issue 1 COMPANY CONFIDENTIAL Page 6 17 Copyright 2007 Nokia All rights reserved ...

Страница 164: ...fferential DC coupled earpiece HF amplifier signal to accessory DC biased to 0 8V XEARN EAR Amp INT HEADINT Switch UEMC Lite 0 2 7V Dig in HS interrupt from bottom connector switch when plug inserted VCHARIN Charger UEMC Lite 11 1Vp eak 16 9 Vpeak Standard Vch from Charger Connector max 20V 7 9 VRMS 1 0 Apeak 7 0 VRMS 8 4 VRMS 9 2 VRMS Fast charger 850 mA GND GND GND from to Charger connector Batt...

Страница 165: ...on safety circuit and battery size indication BSI with an internal resistor The BSI fixed resistor value indicates type and default capacity of a battery Figure 114 BL 4B battery pack contacts Table 15 Pin numbering of battery pack Signal name Pin number Function GND 2 Negative common battery terminal BSI 3 Battery capacity measurement fixed resistor inside the battery pack VBAT 1 Positive battery...

Страница 166: ...16 PWB bottom side component placement RF description Frequency band power and multi slot class The requirement leads to the specification in the table below RM 298 RM 299 System Module Page 6 20 COMPANY CONFIDENTIAL Issue 1 Copyright 2007 Nokia All rights reserved ...

Страница 167: ...s filter located inside the FEM Front End Module Finally the transmit signal goes through the band selection and TX RX switches to the antenna port The FEM is controlled with four digital control signals TXP Vc1 Vc2 and Vc3 to meet the TDMA frame timing requirements Transmitter signal processing The I Q signals coming from the baseband section are fed into the modulator and converted up to the car...

Страница 168: ... the blocking filter the signal is fed into a buffer amplifier which also has programmable gain Around the amplifier there is the first DC offset compensation block which removes most of the cumulated DC offset so far The DC offset compensation method is based on digital successive approximation technique The next block in the RX chain is a switched capacitor SC channel filter which provides the c...

Страница 171: ...ooth CBus MCU controlled serial bus connected to UPP_WD2 UEME and Zocus CCP Compact Camera Port 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 CSR cambridge silicon radio CSTN Color Super Twisted Nematic CTSI Clock Ti...

Страница 172: ...bus GPRS General Packet Radio Service GSM Group Special Mobile Global System for Mobile communication HF Hands free HFCM Handsfree Common HS Handset HSCSD High speed circuit switched data data transmission connection faster than GSM HW Hardware I O Input Output IBAT Battery current IC Integrated circuit ICHAR Charger current IF Interface IHF Integrated hands free IMEI International Mobile Equipmen...

Страница 173: ...et Data Application PDA Personal digital assistant PDRAM Program Data RAM on chip in Tiku Phoenix Software tool of DCT4 x PIM Personal Information Management PLL Phase locked loop PM Phone Permanent memory PUP General Purpose IO PIO USARTS and Pulse Width Modulators PURX Power up reset PWB Printed Wiring Board PWM Pulse width modulation RC filter Resistance Capacitance filter RF Radio Frequency RF...

Страница 174: ...eceiver transmitter UEME Universal Energy Management chip Enhanced version UEMEK See UEME UI User Interface UPP Universal Phone Processor UPP_WD2 Communicator version of DCT4 system ASIC USB Universal Serial Bus VBAT Battery voltage VCHAR Charger voltage VCO Voltage controlled oscillator VCTCXO Voltage Controlled Temperature Compensated Crystal Oscillator VCXO Voltage Controlled Crystal Oscillator...

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