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Troubleshooting flow

Memory card troubleshooting

Cannot detect memory card

Context

Quantum support SD/MMC card.

RM-761; RM-799; RM-800

BB Troubleshooting and Manual Tuning Guide

Page 3 – 32

COMPANY CONFIDENTIAL

Issue 1

Содержание 201

Страница 1: ...Service Manual RM 761 RM 799 RM 800 Nokia 200 Nokia 2000 Nokia 201 Nokia 2010 Mobile Terminal Part No Issue 1 Nokia Customer Care COMPANY CONFIDENTIAL Copyright 2011 Nokia All rights reserved ...

Страница 2: ...nt Record Sheet Amendment No Date Inserted By Comments Original issue 11 2011 Jeff Zhao RM 761 RM 799 RM 800 Amendment Record Sheet Page ii COMPANY CONFIDENTIAL Issue 1 Copyright 2011 Nokia All rights reserved ...

Страница 3: ...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 ar...

Страница 4: ...ECTIONS 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 com...

Страница 5: ...oved 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 761 RM 799 RM 800 For your safety Issue 1 COMPANY CONFIDENTIAL Page v Copyright 2011 Nokia All rights reserved ...

Страница 6: ...ies 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 the m...

Страница 7: ...maged 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 information ...

Страница 8: ... 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 when y...

Страница 9: ...IA 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 761 RM 799 RM 800 Company policy Iss...

Страница 11: ... Service Tools and Service Concepts 3 BB Troubleshooting and Manual Tuning Guide 4 RF Troubleshooting 5 System Module Glossary RM 761 RM 799 RM 800 Nokia 200 Nokia 2000 Nokia 201 Nokia 2010 Service Manual Structure Issue 1 COMPANY CONFIDENTIAL Page xi Copyright 2011 Nokia All rights reserved ...

Страница 12: ...RM 761 RM 799 RM 800 Nokia 200 Nokia 2000 Nokia 201 Nokia 2010 Service Manual Structure This page left intentionally blank Page xii COMPANY CONFIDENTIAL Issue 1 Copyright 2011 Nokia All rights reserved ...

Страница 15: ...neral specifications 1 7 Battery endurance 1 7 Main RF characteristics for GSM band phone 1 7 List of Figures Figure 1 RM 761 RM 799 RM 800 Nokia 200 Nokia 2000 Nokia201 Nokia 2010 product picture 1 5 RM 761 RM 799 RM 800 General Information Issue 1 COMPANY CONFIDENTIAL Page 1 3 Copyright 2011 Nokia All rights reserved ...

Страница 17: ...ot swap enabled RM 761 only HW16 Dual band variants EGSM 900 1800 GSM 900 1800 GSM 850 1800 Edge down link only Combo 32 MB Flash 16 MB SDRAM Codecs supported FR EFR HR AMR SIM support 3volt 1 8volt 320x240 TFT display microSD card slot hot swap supported VGA Camera 2M Long battery life time BL 5J 1430 mAh Nokia AV connector Stereo FM Radio Radio recording RDS Bluetooth One 13 18 IHF speaker Clapt...

Страница 18: ...ced calculator Converter II FOTA NSU Applications Nokia Messaging Mail Chat 3 2 WhatsApp Single SIM only Nokia Social Communities 2 0 Standalone MobileQQ China only Social China solution China only Nokia Browser v1 WebApps Nokia Store Nokia Music sideloading Cherry Tips and Offers Ovi Life Tools 1 9 India Indonesia China Nigeria Accessories In box Phone Nokia 200 in China Nokia 2000 Nokia 201 in C...

Страница 19: ...y up to 30 if half rate is active and reduced by 5 if enhanced full rate is active Main RF characteristics for GSM band phone Parameter Unit Cellular system EGSM850 900 1800 1900 Rx frequency band EGSM850 869 894 MHz for RM 800 only EGSM900 925 960 MHz for RM 761 799 only GSM1800 1805 1880 MHz for RM 761 799 only GSM1900 1930 1990 MHz for RM 800 only Tx frequency band GSM850 824 849 MHz for RM 800...

Страница 20: ...9 only GSM1900 300 for RM 800 only Channel spacing GSM 200 kHz Number of Tx power levels GSM850 15 for RM 800 only GSM900 15 for RM 761 799 only GSM1800 16 for RM 761 799 only GSM1900 16 for RM 800 only RM 761 RM 799 RM 800 General Information Page 1 8 COMPANY CONFIDENTIAL Issue 1 Copyright 2011 Nokia All rights reserved ...

Страница 23: ...8 SRT 6 2 8 SS 227 2 9 SS 93 2 9 SX 4 2 9 Cables 2 9 CA 101 2 9 CA 128RS 2 10 CA 31D 2 10 CA 89DS 2 10 CA 99PS 2 10 PCS 1 2 11 XRS 6 2 11 Service concepts 2 11 Note 2 11 RM 761 RM 799 RM 800 Service Tools and Service Concepts Issue 1 COMPANY CONFIDENTIAL Page 2 3 Copyright 2011 Nokia All rights reserved ...

Страница 25: ...ting error analysis and repair of product RM 761 RM 799 RM 800 For the correct use of the service devices and the best effort of workbench setup please refer to various concepts RM 761 RM 799 RM 800 Service Tools and Service Concepts Issue 1 COMPANY CONFIDENTIAL Page 2 5 Copyright 2011 Nokia All rights reserved ...

Страница 26: ...BUS 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 service software Note Service software enables CU 4 regulators via USB when it is started Reconn...

Страница 27: ...for connecting external storage memory devices or mobile devices One USB B type device connector USB2 For connecting a PC Phone connector Service cable connection for connecting Flashbus FLA Ethernet RJ45 type socket 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 b...

Страница 28: ... Software protection key PK 1 is a hardware protection key with a USB interface It has the same functionality as the PKD 1 series dongle PK 1 is meant for use with a PC that does not have a series interface To use this USB dongle for security service functions please register the dongle in the same way as the PKD 1 series dongle RJ 230 Soldering jig RJ 230 is a soldering jig used for soldering and...

Страница 29: ...E connectors Note The SS 93 is included in Nokia Standard Toolkit SX 4 Smart card SX 4 is a BB5 security device used to protect critical features in tuning and testing SX 4 is also needed together with FPS 21 when DCT 4 phones are flashed Cables The table below gives a short overview of service devices that can be used for testing error analysis and repair of product RM 761 RM 799 RM 800 For the c...

Страница 30: ...21 to a PC It is included in the FPS 21 sales package CA 89DS Cable Provides VBAT and Flashbus connections to mobile device programming adapters CA 99PS Adapter CA 99PS adapter 3 5 jack to 5 5 plug RM 761 RM 799 RM 800 Service Tools and Service Concepts Page 2 10 COMPANY CONFIDENTIAL Issue 1 Copyright 2011 Nokia All rights reserved ...

Страница 31: ...or 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 WCDMA WLAN 0 6 0 1dB Service concepts Note For service concepts please refer to SR993 RM 761 RM 799 RM 800 Service Tools and Service Concepts Issue 1 COMPANY CONFIDENTIAL Page 2 11 Copyright 2011 Nokia All rights reserved ...

Страница 34: ...RM 761 RM 799 RM 800 BB Troubleshooting and Manual Tuning Guide This page left intentionally blank Page 3 2 COMPANY CONFIDENTIAL Issue 1 Copyright 2011 Nokia All rights reserved ...

Страница 35: ... troubleshooting 3 28 External microphone troubleshooting 3 29 Headset speaker troubleshooting 3 30 FM radio troubleshooting 3 31 FM radio troubleshooting 3 31 Memory card troubleshooting 3 32 Cannot detect memory card 3 32 List of Figures Figure 2 Baseband test point locations 3 5 Listing 1 High current when battery is inserted I 500mA 3 7 Figure 4 High current when battery inserted 3 7 Figure 5 ...

Страница 36: ... Figure 26 Internal microphone troubleshooting flow 3 26 Figure 27 Test arrangement for earpiece 3 27 Figure 28 Internal earpiece troubleshooting flow 3 27 Figure 29 Test arrangement for IHF speaker 3 28 Figure 30 IHF speaker troubleshooting flow 3 28 Figure 31 Test arrangement for external microphone 3 29 Figure 32 external microphone troubleshooting flow 3 29 Figure 33 Test arrangement for heads...

Страница 37: ...on on the most important test points is indicated in the following figure Figure 2 Baseband test point locations Non re workable Baseband Components The XGold 213 V2 1S GSM controller IC D3100 is non reworkable This means that if failure diagnostics leads to the conclusion of defective D3100 the PWB has to be swapped with a working unit Baseband main troubleshooting Thefollowingsectionswillcontain...

Страница 38: ... current If the phone draws excessively high current upon power on or insertion of battery it means that VBAT or a LDO output is shorted RM 761 RM 799 RM 800 BB Troubleshooting and Manual Tuning Guide Page 3 6 COMPANY CONFIDENTIAL Issue 1 Copyright 2011 Nokia All rights reserved ...

Страница 39: ...ure 4 High current when battery inserted Refer to the following picture Figure 5 IR picture showing component overheat RM 761 RM 799 RM 800 BB Troubleshooting and Manual Tuning Guide Issue 1 COMPANY CONFIDENTIAL Page 3 7 Copyright 2011 Nokia All rights reserved ...

Страница 40: ... pressing power on key 100mA I 500mA Figure 7 High current after pressing power on key RM 761 RM 799 RM 800 BB Troubleshooting and Manual Tuning Guide Page 3 8 COMPANY CONFIDENTIAL Issue 1 Copyright 2011 Nokia All rights reserved ...

Страница 41: ...king system troubleshooting 26 MHz clock does not work If the 26 MHz crystal does not work it may be due to B7100 malfunction or a soldering defect RM 761 RM 799 RM 800 BB Troubleshooting and Manual Tuning Guide Issue 1 COMPANY CONFIDENTIAL Page 3 9 Copyright 2011 Nokia All rights reserved ...

Страница 42: ...work If the 32 KHz crystal does not work it may be due to B3000 malfunction matching capacitor or B3000 soldering defect RM 761 RM 799 RM 800 BB Troubleshooting and Manual Tuning Guide Page 3 10 COMPANY CONFIDENTIAL Issue 1 Copyright 2011 Nokia All rights reserved ...

Страница 43: ...A chip it may also cause programming failure It is assumed that the integrity of the USB connection is verified prior to flashing troubleshooting The Phoenix tool can give some useful information about the failure as indicated in the following programming troubleshooting flow RM 761 RM 799 RM 800 BB Troubleshooting and Manual Tuning Guide Issue 1 COMPANY CONFIDENTIAL Page 3 11 Copyright 2011 Nokia...

Страница 44: ...text Possible issues happen on the main memory could be image corruption soldering issue or flash chip damaged RM 761 RM 799 RM 800 BB Troubleshooting and Manual Tuning Guide Page 3 12 COMPANY CONFIDENTIAL Issue 1 Copyright 2011 Nokia All rights reserved ...

Страница 45: ...ill detect a valid voltage if charger output voltage is 4 6 9 3V But if something is wrong with the voltage detect measurement circuit then the phone cannot correctly identify the charger RM 761 RM 799 RM 800 BB Troubleshooting and Manual Tuning Guide Issue 1 COMPANY CONFIDENTIAL Page 3 13 Copyright 2011 Nokia All rights reserved ...

Страница 46: ...tery though the V2206 transistor the phone measures charging current by sampling the voltage over resistor R2208 If there is something wrong at this path the charging current may be out of specification It is assumed that phone can detect the presence of the charger otherwise please refer to the above section RM 761 RM 799 RM 800 BB Troubleshooting and Manual Tuning Guide Page 3 14 COMPANY CONFIDE...

Страница 47: ...d without a SIM card When the phone is switched on the phone first checks for a 1 8V SIM card and then for a 3V SIM card The phone will try this several times where after it will display Insert SIM card Figure 13 Cannot identify SIM card RM 761 RM 799 RM 800 BB Troubleshooting and Manual Tuning Guide Issue 1 COMPANY CONFIDENTIAL Page 3 15 Copyright 2011 Nokia All rights reserved ...

Страница 48: ... data signal levels are wrong The first data is always ATR and it is sent from card to phone For reference a picture with normal SIM power up is shown below Figure 15 SIM voltages normal startup at 3V RM 761 RM 799 RM 800 BB Troubleshooting and Manual Tuning Guide Page 3 16 COMPANY CONFIDENTIAL Issue 1 Copyright 2011 Nokia All rights reserved ...

Страница 49: ...he self test passes The troubleshooting guides will as a consequence focus on dual SIM IC SIM card related problems It also assumed that troubleshooting on SIM1 is done using only one SIM card which is inserted either in slot 1 and troubleshooting on SIM2 is done using 2 SIM cards so both slots needs to be occupied SIM 1 not recognized Figure 16 SIM 1 troubleshooting flow RM 761 RM 799 RM 800 BB T...

Страница 50: ... when the USB cable is inserted this means that communication between phone and PC can not be setup This may be due to soldering issue or a malfunction in the ESD protection device RM 761 RM 799 RM 800 BB Troubleshooting and Manual Tuning Guide Page 3 18 COMPANY CONFIDENTIAL Issue 1 Copyright 2011 Nokia All rights reserved ...

Страница 51: ... User interface troubleshooting Keyboard troubleshooting Context One or more keys don t function at all RM 761 RM 799 RM 800 BB Troubleshooting and Manual Tuning Guide Issue 1 COMPANY CONFIDENTIAL Page 3 19 Copyright 2011 Nokia All rights reserved ...

Страница 52: ...he communication between XGOLD and LCD has problems the XGOLD may be not be able to initialize LCD correctly The XGOLD also feeds 2 power supplies to the LCD VAUX and 1V8 if these 2 power supply work abnormally the LCD also doesn t work RM 761 RM 799 RM 800 BB Troubleshooting and Manual Tuning Guide Page 3 20 COMPANY CONFIDENTIAL Issue 1 Copyright 2011 Nokia All rights reserved ...

Страница 53: ... backlight The backlight is driven by a DC DC converter If any component on this serial path is open circuit there is no backlight RM 761 RM 799 RM 800 BB Troubleshooting and Manual Tuning Guide Issue 1 COMPANY CONFIDENTIAL Page 3 21 Copyright 2011 Nokia All rights reserved ...

Страница 54: ...ging on the interface between N3000 and the baseband IC D3100 Troubleshooting on interface between camera and N3000 is outside the scope of this specification In the following troubleshooting guide it is assumed that the integrity of this interface is already verified and valid signal are present on the inputs of N3000 RM 761 RM 799 RM 800 BB Troubleshooting and Manual Tuning Guide Page 3 22 COMPA...

Страница 55: ... bit 0 J3003 Green Hsync J3005 Blue Vsync J3006 Actual pixel clock frequency Vsync and Hsync frequency and data content will depend on the camera used resolution frame rate and operating mode still picture capture video recording viewfinder mode RM 761 RM 799 RM 800 BB Troubleshooting and Manual Tuning Guide Issue 1 COMPANY CONFIDENTIAL Page 3 23 Copyright 2011 Nokia All rights reserved ...

Страница 56: ... camera interface chip IC CCP_CLASS_SEL GND SMIA Class 0 Strobe pins functions as Clock inputs ACME VGA module CCP_CLASS_SEL 1 8V SMIA Class 1 Strobe and Data 2MP module RM 761 RM 799 RM 800 BB Troubleshooting and Manual Tuning Guide Page 3 24 COMPANY CONFIDENTIAL Issue 1 Copyright 2011 Nokia All rights reserved ...

Страница 57: ...phoenix Figure 23 Phoenix audio control window Figure 24 PWB audio test point Internal microphone troubleshooting Steps 1 Connect phone with Phoenix RM 761 RM 799 RM 800 BB Troubleshooting and Manual Tuning Guide Issue 1 COMPANY CONFIDENTIAL Page 3 25 Copyright 2011 Nokia All rights reserved ...

Страница 58: ...icrophone port for example 94dB SPL 1kHz 6 Check if signal is detected at HS_EAR_L R pads as shown in Figure PWB audio test points above Figure 25 Test arrangement for microphone Figure 26 Internal microphone troubleshooting flow RM 761 RM 799 RM 800 BB Troubleshooting and Manual Tuning Guide Page 3 26 COMPANY CONFIDENTIAL Issue 1 Copyright 2011 Nokia All rights reserved ...

Страница 59: ...P ear 4 Set Activate on 5 Input signal to HS_MIC GND pads as shown in Figure PWB audio test point above for example 100mVpp 1kHz 6 Check if sound is heard in earpiece Figure 27 Test arrangement for earpiece Figure 28 Internal earpiece troubleshooting flow RM 761 RM 799 RM 800 BB Troubleshooting and Manual Tuning Guide Issue 1 COMPANY CONFIDENTIAL Page 3 27 Copyright 2011 Nokia All rights reserved ...

Страница 60: ...IHF ear 4 Set Activate on 5 Input signal to HS_MIC GND pads as shown in Figure PWB audio test point above for example 100mVpp 1kHz 6 Check if sound is heard in IHF Figure 29 Test arrangement for IHF speaker Figure 30 IHF speaker troubleshooting flow RM 761 RM 799 RM 800 BB Troubleshooting and Manual Tuning Guide Page 3 28 COMPANY CONFIDENTIAL Issue 1 Copyright 2011 Nokia All rights reserved ...

Страница 61: ...Set Activate on 5 Input sound at AV mic port for example 94dB SPL 1kHz 6 Check if signal is detected at HS_EAR_L R pads shown in Figure PWB audio test points above Figure 31 Test arrangement for external microphone Figure 32 external microphone troubleshooting flow RM 761 RM 799 RM 800 BB Troubleshooting and Manual Tuning Guide Issue 1 COMPANY CONFIDENTIAL Page 3 29 Copyright 2011 Nokia All rights...

Страница 62: ...r 4 Set Activate on 5 Input signal to HS_MIC GND pads as shown in Figure PWB audio test point above for example 100mVpp 1kHz 6 Check if sound is heard in headset Figure 33 Test arrangement for headset speaker Figure 34 external earpiece troubleshooting flow RM 761 RM 799 RM 800 BB Troubleshooting and Manual Tuning Guide Page 3 30 COMPANY CONFIDENTIAL Issue 1 Copyright 2011 Nokia All rights reserve...

Страница 63: ...latter case please refer to IHF speaker troubleshooting or Headset speaker troubleshooting for trouble shooting the downlink audio path and headset detection function It is assumed that live FM stations with sufficient signal strength are available on the point of service and that a dedicated FM signal generator is not used during troubleshooting RM 761 RM 799 RM 800 BB Troubleshooting and Manual ...

Страница 64: ...y card troubleshooting Cannot detect memory card Context Quantum support SD MMC card RM 761 RM 799 RM 800 BB Troubleshooting and Manual Tuning Guide Page 3 32 COMPANY CONFIDENTIAL Issue 1 Copyright 2011 Nokia All rights reserved ...

Страница 66: ...RM 761 RM 799 RM 800 BB Troubleshooting and Manual Tuning Guide This page left intentionally blank Page 3 34 COMPANY CONFIDENTIAL Issue 1 Copyright 2011 Nokia All rights reserved ...

Страница 69: ...eshooting overview 4 13 RX LB troubleshooting 4 14 RX HB troubleshooting 4 18 Transmitter troubleshooting 4 19 Transmitter troubleshooting overview 4 19 TX LB troubleshooting 4 21 TX HB troubleshooting 4 24 Maintenance step 3 Local mode verification and calibration 4 26 Maintenance step 3 local mode verification and calibration 4 26 Maintenance step 4 Signalling mode test 4 27 Maintenance step 4 S...

Страница 70: ...4 Figure 37 X Gold RX pin volts L7100 LB L7101 HB 4 15 Figure 38 RX LB FEM logic waveform C1 VC1 C2 VC2 C3 VC3 4 16 Figure 39 X Gold RX pin volts L7100 LB L7101 HB 4 18 Figure 40 TX checkpoints and component overview measurement point marked with blue 4 20 Figure 41 X Gold TX pin volts C7108 LB C7109 HB 4 21 Figure 42 RX LB FEM logic waveform C1 VC1 C2 VC2 C3 VC3 4 22 Figure 43 TX LB VPC logic wav...

Страница 71: ...mponents are described in this document but there are also a lot of discrete components resistors inductors and capacitors where the troubleshooting is done by checking if soldering of the component is done properly and checking if the component is missing from PWB Capacitors can be checked for short circuiting and resistors for value by means of an Ohm meter However it should be noted that in cir...

Страница 72: ...ere to debug Note Self test will not be able to specify which component s is failing only which functionality is failing Maintenance step 2 Step 2 is where the phone MS is disassembled and the RF production connector can be used i e the antenna is not mounted The purpose of this step is to identify the failing component s and replace it In this step the troubleshooting will be made Purpose of step...

Страница 73: ...e different working flow described depending on outcome of the different Self tests Case 1 All Self Tests Passed Below is the working flow for the case where all Self test passed illustrated The phone passes all the Self tests meaning that the Self Test was not able to detect any failure however it must be assumed that a failure is present In order to locate the area of the failure the RF verifica...

Страница 74: ...o the RX port not the antenna port as normal operation and then looped back to the RX input of the X GOLD213 The receiver of the X GOLD213 is then able to measure how much of the transmitted output power is looped back Since a fail in the RF loopback test can be a failure in the TX or RX LB or HB and the RF internal loopback self test is not able to highlight this it is recommended to do a verific...

Страница 75: ...y visual inspection or by troubleshooting Visual inspection check flow The purpose of the visual inspection is to try by visual to identify the area or component of root cause i e locate burned components mal colure destroyed components misplaced components and other visual abnormalities RM 761 RM 799 RM 800 RF Troubleshooting Issue 1 COMPANY CONFIDENTIAL Page 4 9 Copyright 2011 Nokia All rights r...

Страница 78: ...REL1SS REL1DS 2n4H 3640432 5p6 2320530 3p9 2320526 NA NA REL2SS REL2DS NA NA NA 3n9H 3649199 0R 1430690 REL3SS REL3DS 2n4H 3640432 5p6 2320530 3p9 2320526 NA NA RM 761 RM 799 RM 800 RF Troubleshooting Page 4 12 COMPANY CONFIDENTIAL Issue 1 Copyright 2011 Nokia All rights reserved ...

Страница 79: ...d Abbreviation and terms Specific abbreviations used in RX troubleshooting workflow are described here Abbreviation Definition RXLB_MN C7115 L7100 C7126 RXHB_MN C7114 L7101 C7129 FEM_RxCtl VC1 VC2 VC3 FEM_RxCtrlRes R7106 R7110 R7113 FEM_RxCtrlCap C7107 C7110 C7132 FEM_BatComp L7707 C7135 C7125 C7117 C7111 RM 761 RM 799 RM 800 RF Troubleshooting Issue 1 COMPANY CONFIDENTIAL Page 4 13 Copyright 2011...

Страница 80: ...of synchronizing to a GSM burst signal in local mode To excite the RSSI detector in the same way a modulated GSM signal does the test signal must either be GMSK modulated Pseudo random bit sequence PRBS or an un modulated CW signal with 67 7kHz offset from center frequency RM 761 RM 799 RM 800 RF Troubleshooting Page 4 14 COMPANY CONFIDENTIAL Issue 1 Copyright 2011 Nokia All rights reserved ...

Страница 82: ...ly voltages for the X GOLD213 IC RF sub system Name Ball No Test point Function VBAT G14 C7134 3 6V typ Battery voltage supply voltage of D2B LDO VDDRF2 G13 C7106 2 5V D2B output voltage part of RF supply RM 761 RM 799 RM 800 RF Troubleshooting Page 4 16 COMPANY CONFIDENTIAL Issue 1 Copyright 2011 Nokia All rights reserved ...

Страница 83: ...er supply VDDTDC B12 C7131 1 3V VDD for Time to Digital Converter of DPLL VDDMS H13 C7123 1 3V Mixed signal supply VDDXO E11 C7130 1 3V DCXO supply VDDMMD A12 NONE 1 3V VDD for Multi Modulus Divider of DPLL RM 761 RM 799 RM 800 RF Troubleshooting Issue 1 COMPANY CONFIDENTIAL Page 4 17 Copyright 2011 Nokia All rights reserved ...

Страница 85: ...Abbreviation and terms Specific abbreviations used in TX troubleshooting workflow are described here Abbreviation Definition TXLB_PI_ATT R7107 R7112 R7105 TXHB_PI_ATT R7104 R7108 R7103 TXLB_H4FILTER C7108 C7120 L7504 TXHB_H2FILTER C7109 C7101 L7106 FEM_TxCtl VC1 VC2 VC3 PAEN FEM_TxCtrlRes R7106 R7110 R7113 R7100 FEM_TxCtrlCap C7105 C7107 C7110 C7132 FEM_BatComp L7707 C7135 C7125 C7117 C7111 RM 761...

Страница 86: ...Figure 40 TX checkpoints and component overview measurement point marked with blue RM 761 RM 799 RM 800 RF Troubleshooting Page 4 20 COMPANY CONFIDENTIAL Issue 1 Copyright 2011 Nokia All rights reserved ...

Страница 88: ... Gold TX pin volts C7108 LB C7109 HB Figure 42 RX LB FEM logic waveform C1 VC1 C2 VC2 C3 VC3 RM 761 RM 799 RM 800 RF Troubleshooting Page 4 22 COMPANY CONFIDENTIAL Issue 1 Copyright 2011 Nokia All rights reserved ...

Страница 91: ...B FEM logic waveform C1 VC1 C2 VC2 C3 VC3 Figure 45 TX HB VPC logic waveform PCL0 C1 VPC C2 PAEN RM 761 RM 799 RM 800 RF Troubleshooting Issue 1 COMPANY CONFIDENTIAL Page 4 25 Copyright 2011 Nokia All rights reserved ...

Страница 92: ... Local mode verification and calibration Maintenance step 3 local mode verification and calibration RM 761 RM 799 RM 800 RF Troubleshooting Page 4 26 COMPANY CONFIDENTIAL Issue 1 Copyright 2011 Nokia All rights reserved ...

Страница 93: ...okia service software Read the information provided by the installation program carefully it often points out important steps in the installation Legal notice Copyright Nokia Corporation 2010 This material including documentation and any related computer programs is protected by copyright controlled by Nokia Corporation All rights are reserved Copying including reproducing storing adapting or tran...

Страница 94: ...m 1 GB Hard Disk 300 MB available Product specific service cable or service adapter SW requirements Microsoft NET Framework 2 0 Microsoft Core XML Services MSXML 6 Care Suite package Nokia_Care_Suite_Store_ year _ week _ build_number msi where year week and build number are available Product specific data packages from Online KICS Information Page or via online access to Nokia Firmware Repository ...

Страница 95: ...package and user guide for Care Suite can be found in Nokia Online Care Services KICS Information Page Install testing and tuning tool You can install Care Suite Testing and Tuning Tool on top of previous versions 1 Locate file Testing_and_tuning_tool_ year _ week _ build number exe where year week and build number are variable Installation package and user guide can be found in Nokia Online Care ...

Страница 96: ...for installation Please see step 8 below 5 After you have manually installed NI VISA package please continue Testing Tuning Tool installation from step 2 above 6 Fuse Drivers were successfully installed 7 Confirm to proceed with NI VISA installation by clicking Yes No skips the VISA installation and the installation continue in step 11 RM 761 RM 799 RM 800 RF Troubleshooting Page 4 30 COMPANY CONF...

Страница 97: ...8 NI VISA is downloaded 9 Downloaded package is extracted RM 761 RM 799 RM 800 RF Troubleshooting Issue 1 COMPANY CONFIDENTIAL Page 4 31 Copyright 2011 Nokia All rights reserved ...

Страница 98: ... to start NI VISA installation 11 Select I accept and click next 12 NI VISA is being installed RM 761 RM 799 RM 800 RF Troubleshooting Page 4 32 COMPANY CONFIDENTIAL Issue 1 Copyright 2011 Nokia All rights reserved ...

Страница 99: ... Click Next when space requirements computing is done If your PC does not have online connection to internet and you installed NI VISA package manually please continue manual installation from step 2 above 14 Click Install to proceed with installation RM 761 RM 799 RM 800 RF Troubleshooting Issue 1 COMPANY CONFIDENTIAL Page 4 33 Copyright 2011 Nokia All rights reserved ...

Страница 100: ...s The following info dialog indicates that Care Suite has not been installed Install Care Suite according the instructions you can find from Nokia Care Suite User Guide RM 761 RM 799 RM 800 RF Troubleshooting Page 4 34 COMPANY CONFIDENTIAL Issue 1 Copyright 2011 Nokia All rights reserved ...

Страница 101: ...installation ends Launching Care Suite Testing and tuning Tool You can launch Care Suite in the following ways If the Shortcut on desktop option was selected during installation double click the Nokia Care Suite shortcut on the desktop RM 761 RM 799 RM 800 RF Troubleshooting Issue 1 COMPANY CONFIDENTIAL Page 4 35 Copyright 2011 Nokia All rights reserved ...

Страница 102: ...okia Care Suite Nokia Care Suite application launcher shows the available applications for use Application launcher To launch the Nokia Care Suite Testing and Tuning Tool double click on the Testing and Tuning Tool Layout Welcome screen is displayed when Testing and Tuning Tool is started RM 761 RM 799 RM 800 RF Troubleshooting Page 4 36 COMPANY CONFIDENTIAL Issue 1 Copyright 2011 Nokia All rights...

Страница 103: ...d The progress about device predetection identification and product configuration Press Open Connection Management link to open Nokia Fuse application RM 761 RM 799 RM 800 RF Troubleshooting Issue 1 COMPANY CONFIDENTIAL Page 4 37 Copyright 2011 Nokia All rights reserved ...

Страница 104: ...des drop down menu freshes the connection and behaves like new product is attached and detected device predetection device identification and product configuration steps were executed Refresh functionality can be used when connection paired with CU 4 service adapter is stuck If no device is connected an empty connections are available for selection If you select an empty connection connection to w...

Страница 105: ...roductInformationcolumns make possible to hide items columns or make them visible again Action Report Log Logs all activities done for a particular device by serial number RM 761 RM 799 RM 800 RF Troubleshooting Issue 1 COMPANY CONFIDENTIAL Page 4 39 Copyright 2011 Nokia All rights reserved ...

Страница 106: ...nnections between phone and PC Connections can be managed by Nokia Fuse This is described in Nokia Care Suite User Guide One important addition is added here relating Service Adapter CU 4 used When connection is configured it must be paired with CU 4 Tick Pair this connection with service adapeter choice in connection settings dialog Paired service adapter and connection is visible in Fuse Overvie...

Страница 107: ...igurated via Preferences dialog Go to File Preferences Tools tab Tools to be shown in tools panel can be configured in Tools tab RM 761 RM 799 RM 800 RF Troubleshooting Issue 1 COMPANY CONFIDENTIAL Page 4 41 Copyright 2011 Nokia All rights reserved ...

Страница 108: ...rom local hard drive Online mode will try to connect to a server which contains latest data packages Product Information File Select whether you want to disable creation of the Product Information File use the default folder or define a folder Folder icon opens view to folder where Product Information Files are RM 761 RM 799 RM 800 RF Troubleshooting Page 4 42 COMPANY CONFIDENTIAL Issue 1 Copyrigh...

Страница 109: ...Logs tab Destination folders for logs files can be configured here RM 761 RM 799 RM 800 RF Troubleshooting Issue 1 COMPANY CONFIDENTIAL Page 4 43 Copyright 2011 Nokia All rights reserved ...

Страница 110: ...downloaded data packages The path is also included by default in package search paths Package search path List of search paths of data packages RM 761 RM 799 RM 800 RF Troubleshooting Page 4 44 COMPANY CONFIDENTIAL Issue 1 Copyright 2011 Nokia All rights reserved ...

Страница 111: ...avigation panel or Tools RF Tuning menu If data package is found for the attached product the following screen is displayed RM 761 RM 799 RM 800 RF Troubleshooting Issue 1 COMPANY CONFIDENTIAL Page 4 45 Copyright 2011 Nokia All rights reserved ...

Страница 112: ...or the sequence begins when the user clicks play button picture below button at far left in three button group The execution can be stopped by clicking stop button in the middle of three button group It does not stop the execution immediately but an ongoing step in the sequence is ended first A folder button at the right in three button group opens a window where log files the execution produces a...

Страница 113: ... passed successfully the results are not shown automatically but the user must click wanted step in the sequence view to see results for that step All results are scrollable by clicking the root of the tree view The result view can be closed or open again by clicking small arrow see tiny red rectangle in the middle of the picture below in the sequence result view RM 761 RM 799 RM 800 RF Troublesho...

Страница 114: ...us of step and sequence to red The limits come from data package and those are product specific All information shown in the result view is written to the log file during the execution RF testing RF Testing tool looks visually same like RF Tuning tool There are same controls for cable splitter and shield box selections RM 761 RM 799 RM 800 RF Troubleshooting Page 4 48 COMPANY CONFIDENTIAL Issue 1 ...

Страница 115: ...t then the old value remains in the phone and saving step is marked as a fail red indicator Notes Microsoft Windows Windows Vista and Windows XP are either registered trademarks or trademarks of Microsoft Corporation in the United States and or other countries NI VISA Runtime Copyright 2010 National Instruments Corporation All Rights Reserved Bluetooth Troubleshooting Bluetooth functional descript...

Страница 116: ...ere are any other Bluetooth devices attempting to communicate with it At other times when the Bluetooth device is in standby mode it is only necessary to provide a SLEEP_CLK signal The Bluetooth ASIC is powered directly from the phone battery voltage line VBAT An internal regulator is enabled when Bluetooth is switched on Bluetooth audio signals are sent to and from the device using a PCM interfac...

Страница 117: ...X O UART_RTS O Bluetooth Audio Interface PCM_IN I PCM interface to from host engine PCM_OUT O PCM_SYNC I PCM_CLK I Power VIO P Cellular engine I O supply VBAT P Phone battery power Alternative connection to 1 8V supply could be used Component placement The Bluetooth ASIC is checked when troubleshooting if supported The placement of Bluetooth and test probe points is shown below The Bluetooth anten...

Страница 118: ...o detect other Bluetooth devices Open circuit solder joints or detacted component in Bluetooth antenna circuit Repair of Bluetooth antenna circuit Problems connecting to specific manufacturer model Bluetooth accessory specific Bluetooth profile supported by phone and accessory in product specification Possible interoperability issue with accessory fixed in recent Nokia phone software release check...

Страница 119: ... BER test with BT Box or functional test with other Bluetooth device Bluetooth antenna circuit Repair of Bluetooth antenna circuit including RF filter The self tests run from Phoenix software are used for fault diagnosis If Phoenix software is not available the functional tests with phone accessories are sufficient to verify the functionality of Bluetooth Test Procedure Bluetooth Self Tests A CA 1...

Страница 120: ...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 Bluetooth troubleshooting Troubleshooting flow The specific troubleshooting fault repair chart only needs to be followed if there is a fault with a particular function RM 761 RM 799 RM 800 RF Troubleshooting Page 4 ...

Страница 121: ...6010 C6012 1 7 1 95 C6001 C6002 C6003 C6004 no longer present C6005 C6011 C6020 1 35V C6009 1 14V RM 761 RM 799 RM 800 RF Troubleshooting Issue 1 COMPANY CONFIDENTIAL Page 4 55 Copyright 2011 Nokia All rights reserved ...

Страница 125: ...ctrical interfaces Memory card 5 23 Baseband electrical interfaces Vibrator 5 23 Baseband electrical interfaces BT module 5 24 RF System Module 5 24 Overview 5 24 RF general description 5 24 Frequency plan 5 24 Regulators and power supply concept 5 25 RF block diagram 5 26 BOM release version and RF part list 5 28 List of Tables Table 3 Chipset key components 5 6 Table 4 Quantum Frequency Plan 5 2...

Страница 126: ...d loudspeaker components 5 21 Figure 64 Step up backlight driver 5 22 Figure 65 Camera de serializer for serial camera module 5 23 Figure 66 SD card interface 5 23 Figure 67 Vibrator circuits 5 23 Figure 68 BT circuits 5 24 Figure 69 Power concepts for X GOLD213 RF sub system 5 25 Figure 70 RF block diagram 5 26 Figure 71 Antenna detection circuit 5 27 Figure 72 RF schematic see the table below fo...

Страница 127: ...ge control with temperature and over current and over voltage protection Memory Up to 512Mbit 2Gbit NOR flash with burst mode access Up to 256Mbit PSRAM 296KB internal SRAM 1 8V memory supply constrained by overall IO mapping Audio 700mW Class D amplifier for IHF speaker Stereo DC coupled headset outputs Polyphonic ringing FM radio with RDS Voice CODECs FR EFR HR NB AMR SB ADPCM CODEC for true ton...

Страница 128: ...for flashing Chipset and key components The following table lists all major components in the design on baseband side Table 3 Chipset key components Part Number Function Reference Designator X GOLD 213 V2 1S Engine IC D3100 K5N1266ACM BT80 32MX16 NOR 4MX16 PSRAM D3000 STSMIA832 De serializer for Camera N3000 BC8810 Bluetooth module N6005 26MHz DCXO B7100 32 768KHz crystal B3000 RM 761 RM 799 RM 80...

Страница 129: ...erial data clock from the camera to the 8 bit parallel interface on the XG213 MMC SD card The MMCI interface of XGold213 is used for external data storage on a SD card The interface supports up to 52MHz clock rate giving a peak data bandwidth of 200Mb s Backlight The LCD backlight is designed around an integrated step up converter in X GOLD213 which enables high voltage generation for the serially...

Страница 130: ...river in the X GOLD213 This driver features a VBAT supplied push pull output stage which is intended for driving a vibra motor The engine also supports vibrating using the 3 in 1 multi actuator device please refer to 3 3 6 Accessory support The accessory connector is the Nokia AV connector The ECI function is not supported USB data communication is supported but USB OTG is not supported Also Janet...

Страница 131: ...First connect of VBAT with valid voltage has been detected Input On pin pressed goes from low to high Input RTCOUT caused by programmed alarm in RTC block A valid charger detected and the battery is charged above the SYSONPRE voltage level A USB cable has been connected external circuit The first startup of the PMU is based on local 50 kHz PMU oscillator This eliminates delays caused by slow start...

Страница 132: ... and the VCORE LDO are turned on controlled by the PMU HW state machine The control signal RF_SYSCLK_EN is asserted to power up the DCXO regulator in the RF macro and after the DCXO has stabilized the 26MHz system clock is available The RESETX signal is released 16ms after assertion of RF_SYSCLK_EN When RESETX is released activation and control of the remaining supplies is done by SW hence no exac...

Страница 133: ... flashing process is requested over the USB interface Depending if a flashing process is requested or not the boot ROM code will either exit and the flash PSI followed by normal system code will be executed in the case of a normal startup or the flashing process will be initiated by downloading and executing the RAM PSI from the flashing host Figure 50 System startup SW view RM 761 RM 799 RM 800 S...

Страница 134: ...r detection of a HW interrupt Power distribution The X GOLD213 contains regulators for all power supplies needed in various parts of the chip The regulators are LDO type linear regulators except the 1 8V step down DCDC converter The LDO s are powered from either battery or the step down converter The following figure depicts the complete power management unit with the regulators Supply inputs VRF1...

Страница 135: ... and C2206 Figure 52 Power supply distribution The above figure shows the power supply distribution of Quantum for the supplies which are used outside the X Gold213 Regulators in the X GOLD213 convert the battery voltage VBAT to regulated supplies for the various peripherals The SD card features dedicated regulator A shared supply concept is used for other peripherals This means in general that th...

Страница 136: ...s Currently in Quantum CLKOUT0 is assigned for the 32 kHz SLEEEPCLK and CLKOUT2 is assigned for the camera clock and CLKOUT1 is not used The low power 32 kHz oscillator is enabled under SW control and is available during system sleep for all HW blocks to allow operation is sleep mode with very low power consumption Audio concept The VMIC supply is intended for the biasing of the internal microphon...

Страница 137: ... in order to achieve a good common mode noise rejection Downlink audio can be routed to the headset output drivers earpiece driver or the class D speaker amplifier Figure 54 X Gold213 audio output selection The X Gold213 features stereo headset drivers each driving a 16ohm load with an output power up to 30mWrms With different register settings either a stereo or mono configuration can be selected...

Страница 138: ...y supply voltage range is 3 2V to 4 2V The middle pin of the connector is for battery ID the BSI resistor value should be 68K default value normal mode without charging or 3 3K test mode the nominal resistance of actual NTC resistor is 47K at room temperature Baseband electrical interfaces Charger Charge voltage is detected by an external voltage divider The voltage VCHG is measured by a 10 bit PM...

Страница 139: ...rial or parallel access of reading from or writing to the display The DIF module provides the following main features Serial interface supports up to 26 MHz clock rate 8 9 bits high speed parallel interface with programmable timing requirements Multiple input formats possible RGB up to 32 bit pixel Hardware accelerator for physical protocol pixel bit conversion allows to generate all common output...

Страница 140: ... the RC filter constant created by Rx and the DIF_D1 input capacitance Assuming Rx 2 2 kOhm and Cin 10 pF In single serial display applications Rx should be shorted MESSI_CMT0 and MESSI_CMT1 shorted In a dual display configuration a GPIO must provide the chip select output for the serial connected display Figure 59 Display interface parallel and serial coexist Baseband electrical interfaces Memory...

Страница 141: ...ent as an evolution of the SIM card It can be used for support of GSM Phase 2 and 3G modes The X GOLD213 USIM interface is compatible with ISO 7816 3 IC card standard required by GSM11 12 3 0V and GSM 11 18 1 8V standards It supports both 1 8V and 3 0V SIM Cards with T 0 and T 1 protocols supported by hardware For 3V SIM cards the nominal supply voltage is 2 85V The SIM card is provided with a 3 2...

Страница 142: ...he LFH1001 multiplexes the signal paths of the two SIM cards so that one will be connected to the SIM interface in the baseband IC while the other is left in clock stop mode This allows both SIM cards to be powered and provides a flexible and efficient way of switching between the two cards without having to execute repeated de activation and activation sequences in order to access the two cards F...

Страница 143: ...components to the second differential microphone input MICP2 and MICN2 and is designed pseudo differentially for better noise immunity DC blocking capacitors C2107 are used VUMIC for the biasing A low pass filter comprising R2105 and C2105 removes any potential noise picked up by VUMIC Figure 63 Earpiece and loudspeaker components Baseband electrical interfaces Backlight and illumination The backl...

Страница 144: ...ring standby In case of interrupt the CPU will read the corresponding row and initiate an active key scan to identify the correct column The key interface will also allow detection of two simultaneously pressed keys The PWRON key is for power on function it is pull up by VRTC Baseband electrical interfaces Camera The X Gold213 CIF is a high performance camera interface block that implements the co...

Страница 145: ...ovides a logic signal for detection of card insertion and removal Baseband electrical interfaces Vibrator The vibrator function is supported using the VIB driver in the X GOLD213 This driver features a VBAT supplied push pull output stage which is intended for driving a vibrator motor The engine also supports vibrating using the 3 in 1 multi actuator device Figure 67 Vibrator circuits RM 761 RM 79...

Страница 146: ... Level 3 as described in Recommended service equipment for authorized Nokia service suppliers Version 30 01 Nov 2009 by Nokia RF general description The RF part of the Quantum engine is a 2G block using the Infineon X GOLD213 IC RF sub system as the RF transceiver module which supports dual band GSM voice and data applications GPRS class 10 with the feature of RX EGPRS capability It also supports ...

Страница 147: ...tly for increasing the efficiency The following figure shows the power concept of the X GOLD213 IC RF sub system Figure 69 Power concepts for X GOLD213 RF sub system In the following table the RF power supply names IC ball numbers description for use and at which components the supply voltage can be measured at are listed Table 5 Power supply voltages for the X GOLD213 IC RF sub system Name Ball N...

Страница 148: ...ted output power level PCL of the GSM specification determined by the amplitude level of the Vramp signal The RF output signal from the FEM is delivered to the RF connector RF production debug connector ifaRFcableispresentortotheAntennaPadincaseofnoRFcableconnected Adetaileddescription of the TX path in the RF part of the Quantum engine can be found in Appendix B RX path overview The RX signal is ...

Страница 149: ...ding on the setting of the AFC DAC value Antenna detection The antenna detection circuit is applied to determine if the RF test cable is mechanically mounted or not The antenna circuitry consist by a current sourced ADC from the X Gold that s are sourcing the resistors R7454 and R7460 to the X7450 RF connector then finally goes to FEM output pin depend on RF test cable is assembled or not The FEM ...

Страница 150: ...e as shown in the table below The PA ID resistor embedded in the FEM makes it possible for the X GOLD to determine which release is used Table 6 Schematic differences between releases Rel 1 Rel 3 BAND EU EU C7114 2p2 2320520 2p2 2320520 C7129 2p2 2320520 2p2 2320520 C7115 3p9 2320526 3p9 2320526 C7126 3p9 2320526 3p9 2320526 L7100 15nH 3640122 18nH 3640171 L7101 5n6H 3646059 5n6H 3646059 N7100 Sky...

Страница 153: ...tor 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 data C...

Страница 154: ...ated super 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 Hard...

Страница 155: ...ipoint to point connection NFC Near field communication NTC Negative 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 PCM Pulse Code Modulation PDA Pocket Data Application PDA Personal digital assistant PDRAM Program Data RAM on ch...

Страница 156: ...odule SMPS Switched Mode Power Supply SNR Signal to noise ratio SPR Standard Product requirements 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 TD SCDMA Time Division Synchronous Code Division Multiple Access Tiku Finnish for Chip Succ...

Страница 157: ...led Crystal Oscillator VF View Finder Vp p Peak to peak voltage VSIM 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 761 RM 799 RM 800 Glossary Issue 1 COMPANY CONFIDENTIAL Page Glossary 7...

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