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Nokia Customer Care
Service Manual
RM-376 (Nokia 2608)
Mobile Terminal
Part No: (Issue 1)
COMPANY CONFIDENTIAL
Copyright © 2008 Nokia Corporation. All rights reserved.

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Troubleshooting

   Also See for Nokia 2608

   Summary of Contents for Nokia 2608

  • Page 1

    Nokia Customer Care Service Manual RM-376 (Nokia 2608) Mobile Terminal Part No: (Issue 1) COMPANY CONFIDENTIAL Copyright © 2008 Nokia Corporation. All rights reserved.

  • Page 2

    RM-376 Amendment Record Sheet Amendment Record Sheet Amendment No Date Inserted By Comments Issue 1 06/2008 Shelly Wang 09/2008 Shelly Wang update Page II Company Confidential Issue1 Copyright © 2008 Nokia. All rights reserved.

  • Page 3

    Nokia operates a policy of continuous development. Nokia reserves the right to make changes and improvements to any of the products described in this document without prior notice. Under no circumstances shall Nokia be responsible for any loss of data or income or any special, incidental, consequential or indirect damages howsoever caused.

  • Page 4

    WCDMA networks and cause problems to 3G cellular phone communication in a wide area. During testing never activate the GSM or WCDMA transmitter without a proper antenna load, otherwise GSM or WCDMA PA may be damaged. Page IV Company Confidential Issue1 Copyright © 2008 Nokia. All rights reserved.

  • Page 5

    RM-376 ESD protection ESD protection Nokia requires that service points have sufficient ESD protection (against static electricity) when servicing the phone. Any product of which the covers are removed must be handled with ESD protection. The SIM card can be replaced without ESD protection if the product is otherwise ready for use.

  • Page 6

    Use only the supplied or an approved replacement antenna. Unauthorised antennas, modifications or attachments could damage the phone and may violate regulations governing radio devices. All of the above suggestions apply equally to the product, battery, charger or any accessory. Page VI Company Confidential Issue1 Copyright © 2008 Nokia. All rights reserved.

  • Page 7

    While every endeavour has been made to ensure the accuracy of this document, some errors may exist. If any errors are found by the reader, NOKIA MOBILE PHONES Business Group should be notified in writing/email. Please state: Title of the Document + Issue Number/Date of publication...

  • Page 8

    Batteries' performance is particularly limited in temperatures well below freezing. Do not dispose of batteries in a fire! Dispose of batteries according to local regulations (e.g. recycling). Do not dispose as household waste. Page VIII Company Confidential Issue1 Copyright © 2008 Nokia. All rights reserved.

  • Page 9: Service Tools

    Nokia 2608 Service Manual Structure 1 General Information 2 Service Tools and Service Concepts 3 Baseband Troubleshooting 4 RF troubleshooting 5 System Module and User Interface 6 Glossary Issue1 Company Confidential Page IX Copyright © 2008 Nokia. All rights reserved.

  • Page 10

    RM-376 Nokia 2608 Service Manual Structure (This page left intentionally blank.) Page X Company Confidential Issue1 Copyright © 2008 Nokia. All rights reserved.

  • Page 11

    Nokia Customer Care 1- General Information Issue1 Company Confidential Page 1-1 Copyright © 2008 Nokia. All rights reserved.

  • Page 12

    RM-376 General Information (This page left intentionally blank.) Page 1-2 Company Confidential Issue1 Copyright © 2008 Nokia. All rights reserved.

  • Page 13: Table Of Contents

    General Information Table of Contents Product features and sales packages ..............................1-5 Mobile Enhancement......................................1-6 Technical specifications ....................................1-6 Transceiver general specifications............................1-6 Main RF characteristics for CDMA2000 Cell band 800..................1-6 Battery endurance..................................1-7 Issue1 Company Confidential Page 1-3 Copyright © 2008 Nokia. All rights reserved.

  • Page 14

    RM-376 General Information (This page left intentionally blank.) Page 1-4 Company Confidential Issue1 Copyright © 2008 Nokia. All rights reserved.

  • Page 15: Product Features And Sales Packages

    Calendar, alarm clock, calculator, stopwatch, world clock, count timer, to-do list, timers, key guard and notes/memo pad 3 pre-loaded themes (1 configurable carrier branded theme, 1 Nokia theme and 1 generic theme) and 10 pre-loaded wallpapers Downloadable ringtones and wallpapers via BREW...

  • Page 16: Mobile Enhancement

    Main RF characteristics for CDMA2000 Cell band 800 Parameter Unit Cellular system CDMA2000(800 MHz band) Rx frequency band Band class 0: 869 – 894 MHz Tx frequency band Band class 0: 824 – 849 MHz Page 1-6 Company Confidential Issue1 Copyright © 2008 Nokia. All rights reserved.

  • Page 17: Battery Endurance

    Operation times may vary depending on radio access technology used, operator network configuration and usage. Charging time AC-6U No more than 3 hours (from empty to full battery) Issue1 Company Confidential Page 1-7 Copyright © 2008 Nokia. All rights reserved.

  • Page 18

    RM-376 General Information (This page left intentionally blank.) Page 1-8 Company Confidential Issue1 Copyright © 2008 Nokia. All rights reserved.

  • Page 19: Issue1 Company Confidential Page

    Nokia Customer Care 2- Service Tools and Service Concept Issue1 Company Confidential Page 2-1 Copyright © 2008 Nokia. All rights reserved.

  • Page 20

    RM-376 Service Tools and Service Concept (This page left intentionally blank.) Page 2-2 Company Confidential Issue1 Copyright © 2008 Nokia. All rights reserved.

  • Page 21

    General tools....................................2-6 Cables........................................2-7 Service concepts........................................2-8 POS (Point of Sale) flash concept............................2-8 Flash concept with Module Jig ............................2-9 Covers-off BB/RF Troubleshooting using Module Jig..................2-10 Automated Tuning and Alignment concept......................2-11 Issue1 Company Confidential Page 2-3 Copyright © 2008 Nokia. All rights reserved.

  • Page 22

    Figure 1 POS flash concept………………………………………………………………………………………………………………………………8 Figure 2 Flash concepts with Module Jig………………………………………………………………………………………………………….9 Figure 3 Cover-off BB/RF Troubleshooting using Module Jig…………………………………………………………………………10 Figure 4 Automated Tuning and Alignment concept ……………………………………………………………………………………11 Page 2-4 Company Confidential Issue1 Copyright © 2008 Nokia. All rights reserved.

  • Page 23: Service Tools

    SS-190 Dome sheet Alignment Jig SS-190 is a jig to align the adhesive dome sheet assembly onto the PWB in the proper location during dome sheet replacement. Issue1 Company Confidential Page 2-5 Copyright © 2008 Nokia. All rights reserved.

  • Page 24: General Tools

    PK-83 is a hardware protection key with a USB interface to enable the use of the service software when connected to the USB port of the PC or Notebook. It is not possible to use the service software without PK-83 Page 2-6 Company Confidential Issue1 Copyright © 2008 Nokia. All rights reserved.

  • Page 25: Cables

    “ripple” over the width of each band Note: The RF Test Cable must be used for RF tuning. SRT-6 Opening tool SRT-6 is used to open phone covers. Issue1 Company Confidential Page 2-7 Copyright © 2008 Nokia. All rights reserved.

  • Page 26: Service Concepts

    Figure 1 POS flash concept Type Description Product specific tools BL-5BT Battery Other tools Nokia Care Suite PC with Nokia Care Suite service software Cables CA-101 Micro USB cable Page 2-8 Company Confidential Issue1 Copyright © 2008 Nokia. All rights reserved.

  • Page 27: Flash Concept With Module Jig

    Figure 2 Flash concept with Module Jig Type Description Product specific tools MJ-209 Module Jig Other tools Nokia Care Suite PC with Nokia Care Suite service software Cables CA-101 Micro USB cable PCS-1 Power Service Cable Issue1 Company Confidential Page 2-9...

  • Page 28: Covers-off Bb/rf Troubleshooting Using Module Jig

    Product specific tools MJ-209 Module Jig Other tools PK-83 AMS SW Protection Key (USB) Nokia Care Suite PC with Nokia Care Suite service software (L3 version) B89/PK800 R&S CMU200 with CDMA CALL BOX module Oscilloscope Multi-meter Probes used with Oscilloscope and Multi-meter...

  • Page 29: Automated Tuning And Alignment Concept

    Description Product specific tools MJ-209 Module Jig Other tools PK-83 AMS SW Protection Key (USB) Nokia Care Suite PC with Nokia Care Suite service software (L3 version) B89/PK800 R&S CMU200 with CDMA CALL BOX module Cables CA-101 Micro USB cable...

  • Page 30

    RM-376 Service Tools and Service Concept (This page left intentionally blank.) Page 2-12 Company Confidential Issue1 Copyright © 2008 Nokia. All rights reserved.

  • Page 31: Troubleshooting

    Nokia Customer Care 3- Baseband Troubleshooting Issue1 Company Confidential Page 3-1 Copyright © 2008 Nokia. All rights reserved.

  • Page 32

    RM-376 Baseband Troubleshooting (This page left intentionally blank.) Page 3-2 Company Confidential Issue1 Copyright © 2008 Nokia. All rights reserved.

  • Page 33

    ..................................3-9 Vibra troubleshooting....................................3-10 Display module troubleshooting ................................3-11 Audio troubleshooting....................................3-12 Audio troubleshooting test instructions ........................3-12 Internal receiver troubleshooting..........................3-17 Internal microphone troubleshooting........................3-18 IHF speakers troubleshooting ............................3-19 External earphone troubleshooting ..........................3-20 Issue1 Company Confidential Page 3-1 Copyright © 2008 Nokia. All rights reserved.

  • Page 34

    RM-376 Baseband Troubleshooting Page 3-2 Company Confidential Issue1 Copyright © 2008 Nokia. All rights reserved.

  • Page 35: Troubleshooting Overview

    RM-376 Baseband Troubleshooting Troubleshooting overview For practical reasons, troubleshooting is divided into two sections; Baseband troubleshooting RF troubleshooting Issue1 Company Confidential Page 3-3 Copyright © 2008 Nokia. All rights reserved.

  • Page 36: Dead Or Jammed Device Troubleshooting

    RM-376 Baseband Troubleshooting Dead or jammed device troubleshooting Troubleshooting flow Page 3-4 Company Confidential Issue1 Copyright © 2008 Nokia. All rights reserved.

  • Page 37: General Power Checking

    RUIM VREG 2.85 V TCXO VREG 2.6 V MSMA VREG 1.8 V MSME1 VREG 2.9 V MSME2 VREG 2.6 V MSMP VREG 1.2 V CORE 1.8 V BIAS Issue1 Company Confidential Page 3-5 Copyright © 2008 Nokia. All rights reserved.

  • Page 38: Charging Troubleshooting

    RM-376 Baseband Troubleshooting Charging troubleshooting Troubleshooting flow Page 3-6 Company Confidential Issue1 Copyright © 2008 Nokia. All rights reserved.

  • Page 39: Keyboard Troubleshooting

    (shortcut or open connection). For a more detailed description of the keyboard and keymatrix, see section Keyboard. If the failure mode is not clear, start with the Keyboard Test in L3 PST. Issue1 Company Confidential Page 3-7 Copyright © 2008 Nokia. All rights reserved.

  • Page 40

    RM-376 Baseband Troubleshooting Troubleshooting flow Page 3-8 Company Confidential Issue1 Copyright © 2008 Nokia. All rights reserved.

  • Page 41: Power Key Troubleshooting

    RM-376 Baseband Troubleshooting Power key troubleshooting Troubleshooting flow Issue1 Company Confidential Page 3-9 Copyright © 2008 Nokia. All rights reserved.

  • Page 42: Vibra Troubleshooting

    RM-376 Baseband Troubleshooting Vibra troubleshooting Troubleshooting flow Page 3-10 Company Confidential Issue1 Copyright © 2008 Nokia. All rights reserved.

  • Page 43: Display Module Troubleshooting

    RM-376 Baseband Troubleshooting Display module troubleshooting Troubleshooting flow Issue1 Company Confidential Page 3-11 Copyright © 2008 Nokia. All rights reserved.

  • Page 44: Audio Troubleshooting

    The results presented in the table apply, when no accessory is connected. Earpiece, internal mic and speaker are in place during measurement. Applying a headset accessory during measurement causes a significant drop in measured levels. Page 3-12 Company Confidential Issue1 Copyright © 2008 Nokia. All rights reserved.

  • Page 45

    RM-376 Baseband Troubleshooting Measurement data Receiver test Issue1 Company Confidential Page 3-13 Copyright © 2008 Nokia. All rights reserved.

  • Page 46

    RM-376 Baseband Troubleshooting Microphone test Page 3-14 Company Confidential Issue1 Copyright © 2008 Nokia. All rights reserved.

  • Page 47

    RM-376 Baseband Troubleshooting peaker test Issue1 Company Confidential Page 3-15 Copyright © 2008 Nokia. All rights reserved.

  • Page 48

    RM-376 Baseband Troubleshooting Headset test Page 3-16 Company Confidential Issue1 Copyright © 2008 Nokia. All rights reserved.

  • Page 49: Internal Receiver Troubleshooting

    RM-376 Baseband Troubleshooting Internal receiver troubleshooting Troubleshooting flow Issue1 Company Confidential Page 3-17 Copyright © 2008 Nokia. All rights reserved.

  • Page 50: Internal Microphone Troubleshooting

    RM-376 Baseband Troubleshooting Internal microphone troubleshooting Troubleshooting flow Page 3-18 Company Confidential Issue1 Copyright © 2008 Nokia. All rights reserved.

  • Page 51: Ihf Speakers Troubleshooting

    RM-376 Baseband Troubleshooting IHF speakers troubleshooting Troubleshooting flow Issue1 Company Confidential Page 3-19 Copyright © 2008 Nokia. All rights reserved.

  • Page 52: External Earphone Troubleshooting

    RM-376 Baseband Troubleshooting External earphone troubleshooting Troubleshooting flow Page 3-20 Company Confidential Issue1 Copyright © 2008 Nokia. All rights reserved.

  • Page 53

    Nokia Customer Care 4- RF Troubleshooting Issue1 Company Confidential Page 4-1 Copyright © 2008 Nokia. All rights reserved.

  • Page 54

    RM-376 RF Troubleshooting (This page left intentionally blank.) Page 4-2 Company Confidential Issue1 Copyright © 2008 Nokia. All rights reserved.

  • Page 55

    Introduction to RF troubleshooting..........................4-2 General information on RF troubleshooting......................4-2 RF key components..................................4-4 General voltage checking...............................4-5 RF CallTest in Nokia CDMA L3 PST Fx.x..........................4-9 Receiver troubleshooting..................................4-11 Introduction to receiver (RX) troubleshooting......................4-11 Setup for RX Troubleshooting............................4-11 Cell Receiver Check from RF to DVGA..........................4-13...

  • Page 56: General Rf Troubleshooting

    The scope of this guideline is to enable repairs at key-component level. Some key-components are not accessible, i.e. not replaceable. Please refer to the list of Non-replaceable RF components. General information on RF troubleshooting Page 4-2 Company Confidential Issue1 Copyright © 2008 Nokia. All rights reserved.

  • Page 57

    RM-376 RF Troubleshooting Issue1 Company Confidential Page 4-3 Copyright © 2008 Nokia. All rights reserved.

  • Page 58: Rf Key Components

    RM-376 RF Troubleshooting RF key components QSC6020 SAW Filter Power detector RF connector TQM613025 Page 4-4 Company Confidential Issue1 Copyright © 2008 Nokia. All rights reserved.

  • Page 59: General Voltage Checking

    PA_ON C1801.2 On :2.35~2.85V , Off :0V PA_R0 ow mode :2.35~2.85V , High mode :0V VREG_TCXO C1809 n :2.85V , Off :0V VPH_PWR C1807.1 3.4~4.2V VREG_RFTX C814.1 2.65V Issue1 Company Confidential Page 4-5 Copyright © 2008 Nokia. All rights reserved.

  • Page 60

    RM-376 RF Troubleshooting Figure 1 RF TX Path voltage checking test points Page 4-6 Company Confidential Issue1 Copyright © 2008 Nokia. All rights reserved.

  • Page 61

    RF Supply Line Resistance to Ground *Note: Always measure resistance m easure resistance with the phone powered o Figure 2 Bottom side TX voltage checking test point Issue1 Company Confidential Page 4-7 Copyright © 2008 Nokia. All rights reserved.

  • Page 62

    RF RX voltage checking Description Test Point Value XO_19.2M X801.1, X801.3 19.2 MHz VREG_RFRX C803.1 2.65V Rx bias R1705.2 122mV Figure 3 RF RX voltage checking test point Page 4-8 Company Confidential Issue1 Copyright © 2008 Nokia. All rights reserved.

  • Page 63: Rf Calltest In Nokia Cdma L3 Pst Fx.x

    RF CallTest in Nokia CDMA L3 PST Fx.x Context Always start the troubleshooting procedure by running the RF CallTest in Nokia CDMA L3 PST. If a test fails, please follow the diagram below. If the phone is dead and you cannot perform the self tests, go to Dead or jammed device troubleshooting in the baseband troubleshooting section.

  • Page 64

    RM-376 RF Troubleshooting Troubleshooting flow Page 4-10 Company Confidential Issue1 Copyright © 2008 Nokia. All rights reserved.

  • Page 65: Receiver Troubleshooting

    (RX) tr oubleshooting RX can be tested by making a phone call or in local mode. For the local mode testing, use the RF CallTest in Nokia CDMA L3 PST service software. The main RX troubleshooting measurement is RSSI reading. This test measures the signal strength of the received signal.

  • Page 66

    RM-376 RF Troubleshooting Figure4 RF Toolkit setup for RX troubleshooting Page 4-12 Company Confidential Issue1 Copyright © 2008 Nokia. All rights reserved.

  • Page 67: Dvga

    RF Connector to FEM -30dBm C1814.1 FEM OUTPUT -33dBm L1701.1 LNA IN -30dBm L1711.1 RX SAW INPUT -22dBm C1711.1 RX SAW OUTPUT -23dBm L1709.2, L1707.1 RX MIXER IN -27dBm Issue1 Company Confidential Page 4-13 Copyright © 2008 Nokia. All rights reserved.

  • Page 68

    RM-376 RF Troubleshooting Figure 5 RX RF test points Page 4-14 Company Confidential Issue1 Copyright © 2008 Nokia. All rights reserved.

  • Page 69: Cell 800 Rx Path Troubleshooting

    RM-376 RF Troubleshooting CELL 800 RX Path Troubleshooting Troubleshooting flow Issue1 Company Confidential Page 4-15 Copyright © 2008 Nokia. All rights reserved.

  • Page 70: Transmitter Troubleshooting

    Set the phone to normal mode Use the following settings: Check the basic TX parameters (i.e. power, phase error, modulation and switching spectrum), using a communication analyzer (for example CMU200). Page 4-16 Company Confidential Issue1 Copyright © 2008 Nokia. All rights reserved.

  • Page 71

    RM-376 RF Troubleshooting Figure 6 Typical readings Change the power level (RF controls) and make sure the power reading follows accordingly. Issue1 Company Confidential Page 4-17 Copyright © 2008 Nokia. All rights reserved.

  • Page 72: Setup For Tx Troubleshooting

    12. Set “Set TX AGC” to “80” 13. Get HDET value by setting “Set ADC Channel” to “4” and “Get ADC”. Figure 7 RF Toolkit setup for TX troubleshooting Page 4-18 Company Confidential Issue1 Copyright © 2008 Nokia. All rights reserved.

  • Page 73: Transmitter Rf Test Point

    FEM output to RF connector ( PA Low Gain 6dBm MODE ) J1801 RF connector ( PA Low Gain MODE ) 13dBm Figure 8 TX RF test point Issue1 Company Confidential Page 4-19 Copyright © 2008 Nokia. All rights reserved.

  • Page 74: Cell 800 Tx Path Troubleshooting

    RM-376 RF Troubleshooting CELL 800 TX Path Troubleshooting Troubleshooting flow Page 4-20 Company Confidential Issue1 Copyright © 2008 Nokia. All rights reserved.

  • Page 75: Fm Radio Troubleshooting

    RM-376 RF Troubleshooting FM radio troubleshooting FM Voltage Test Point Test Point Description Value C1602.1, C1603.1 3.4V~4.2V C1604.2 Vreg_ MSMP 2.6V Issue1 Company Confidential Page 4-21 Copyright © 2008 Nokia. All rights reserved.

  • Page 76

    J1001 and No Fault listen to FM signal Go to Headset troubleshooting Check Vph=3.4~4.2V at C1602, C1603 Go to general power supply troubleshooting Check Vreg_MSMP=2.6V at C1604 Replace U1601 Page 4-22 Company Confidential Issue1 Copyright © 2008 Nokia. All rights reserved.

  • Page 77: Rf Tunings

    Product specific module jig Cables: CA-128RS (RF cable), CA-101 Micro USB cable, PCS-1 Power Service Cable and GPIB cable PK-83 AMS SW protection key Service Software, Nokia CDMA L3 PST Fx.x (x.x means version number) Issue1 Company Confidential Page 4-23...

  • Page 78

    CDMA L3 PST Fx.x 2. Select “RF and Testing” and click “cable loss”. 3. Select Band class to BC0 for 2608. 4. If RF cable loss is known, select “set ini” and enter the loss value. 5. If RF cable loss is unknown, select “calculate”.

  • Page 79

    RM-376 RF Troubleshooting Issue1 Company Confidential Page 4-25 Copyright © 2008 Nokia. All rights reserved.

  • Page 80

    RM-376 RF Troubleshooting Page 4-26 Company Confidential Issue1 Copyright © 2008 Nokia. All rights reserved.

  • Page 81

    Nokia Customer Care 5- System Module and User Interface Issue1 Company Confidential Page 5-1 Copyright © 2008 Nokia. All rights reserved.

  • Page 82

    RM-376 System Module and User Interface (This page left intentionally blank.) Page 5-2 Company Confidential Issue1 Copyright © 2008 Nokia. All rights reserved.

  • Page 83

    Baseband technical specifications..............................5-30 External interfaces..................................5-30 Charger connector and charging interface connections & electrical characteristics....5-30 Description........................................5-31 Block diagram....................................5-31 Receiver (RX)....................................5-31 Transmitter (TX)..................................5-32 Frequency mappings....................................5-35 CDMA 800 frequencies................................5-35 Issue1 Company Confidential Page 5-3 Copyright © 2008 Nokia. All rights reserved.

  • Page 84: Introduction

    BL-5BT (870 mAh) lithium-ion battery is used as the main power source. ey components Function Description Item ref Main chip Qualcomm QSC6020 U100 Oscillators Memory S71WS128PC0HF3SR0 U901 Battery BL-5BT Battery connector CN501 RF connector Charging IC BQ24072 U503 Page 5-4 Company Confidential Issue1 Copyright © 2008 Nokia. All rights reserved.

  • Page 85

    RM-376 System Module and User Interface System module block diagram Issue1 Company Confidential Page 5-5 Copyright © 2008 Nokia. All rights reserved.

  • Page 86: Energy Management

    L-5BT battery he 2608 uses a Lithium-Ion cell battery with a capacity of 870 mAh. QSC6020 reads the resistor inside the battery pack on the BSI line to identify the battery size. Different charging algorithm will be used for different battery sizes.

  • Page 87

    (EMC), and transient protection of the input to the baseband module. The charger’s DC input is through the Micro USB connector. This mobile terminal supports AC-6U & DC-6 chargers. Issue1 Company Confidential Page 5-7 Copyright © 2008 Nokia. All rights reserved.

  • Page 88

    The input current limit and charge current are programmable using external resistors. Figure 5 Mobile terminal charger circuit Page 5-8 Company Confidential Issue1 Copyright © 2008 Nokia. All rights reserved.

  • Page 89: Backup Battery

    SW Shutdown Voltages Sw shutdown 3.20 In call Sw shutdown 3.20 In idle Min Operating Voltage Vcoff+ 2.9 ± 0.1 Off to o Vcoff- 2.6 ± 0.1 On to off Issue1 Company Confidential Page 5-9 Copyright © 2008 Nokia. All rights reserved.

  • Page 90: Power Key And System Power-up

    The PON_RESET_N (“RESIN_N” pin in 2608 schematic) line holds low for another 20ms and is sent to MSM. Resets are generated for the MSM’s internal MCU and its internal DSP, and MSM sends TCXO_ON (“TCXO_EN” pin in 2608 schematic) signal to PM to enable TCXO.

  • Page 91

    When the power key is pressed, the PM enters the power-up sequence. Pressing the power key causes the KPD_PWR_N (KPD_PWR_N pin in 2608 schematic) pin to GND. The KPD_PWR_N signal is not part of the keypad matrix. The power key is only connected to the PM. This means that when the power key is pressed, an interrupt will be generated to the MSM in order to power on the MCU.

  • Page 92: Power Off

    The MSM drives the PS_HOLD signal low responding to the pressing of the keypad power button Battery volt age drops below power off threshold (Battery voltage < 3.2 V) The PM die temperature exceeds its “severe” over-temperature threshold Page 5-12 Company Confidential Issue1 Copyright © 2008 Nokia. All rights reserved.

  • Page 93: Modes Of Operation

    PM switch off when the battery voltage reaches 4.2 V. The charging current is monitored by measuring the voltage drop across a 0.1 ohm resistor. Issue1 Company Confidential Page 5-13 Copyright © 2008 Nokia. All rights reserved.

  • Page 94: Power Distribution

    150 mA 2.60 V Enabled when the receiver is on RFTX 150 mA 2.60 V Enabled when the transmitter is on Note: All output regulators voltage accuracy +/-2% Page 5-14 Company Confidential Issue1 Copyright © 2008 Nokia. All rights reserved.

  • Page 95

    RM-376 System Module and User Interface Figure 7 Power Distribution Issue1 Company Confidential Page 5-15 Copyright © 2008 Nokia. All rights reserved.

  • Page 96: Clock Distribution

    47, but some circuits offer multiple implementation options. Detailed descriptions of all these functions and their options (where applicable) are presented in the following subsections. Figure 8 TCXO and SLEEP_XTAL Block Diagram Page 5-16 Company Confidential Issue1 Copyright © 2008 Nokia. All rights reserved.

  • Page 97

    The regulator of TCXO is turned off after the TCXO_EN signal is removed. Upon power-up, the PM defaults to this SBI-controlled mode with the TCXO defaulted on. This assures the MSM will always have a clock available immediately at power-up even if TCXO_EN is low. Issue1 Company Confidential Page 5-17 Copyright © 2008 Nokia. All rights reserved.

  • Page 98

    RM-376 System Module and User Interface TCXO waveform (19.2MHz+/-2ppm) Figure 10 TCXO Timing at 25P Page 5-18 Company Confidential Issue1 Copyright © 2008 Nokia. All rights reserved.

  • Page 99

    PM automatically switches to the RC oscillator and sends an MSM interrupt. Narrow pulses at the SLEEP_CLK output may occur during this switchover. The crystal oscillator dissipates little power, adjusting its bias current to the minimum required to maintain oscillation. Issue1 Company Confidential Page 5-19 Copyright © 2008 Nokia. All rights reserved.

  • Page 100

    RM-376 System Module and User Interface SLEEP Clock waveform (32.768KHz +/-20ppm) Figure 12 Sleep_CLK Timing at 25P Page 5-20 Company Confidential Issue1 Copyright © 2008 Nokia. All rights reserved.

  • Page 101

    The system clock is stopped during sleep mode by disabling the VREG_TCXO. The TCXO is turned off by the PM regulator, which is from MSM’s TCXO_EN output signal. Issue1 Company Confidential Page 5-21 Copyright © 2008 Nokia. All rights reserved.

  • Page 102: Usb

    USB. Figure 14 Micro USB Connector Charger interface This mobile terminal supports AC-6 & DC-6 chargers and be connected through this interface. Page 5-22 Company Confidential Issue1 Copyright © 2008 Nokia. All rights reserved.

  • Page 103: User Interface

    User Interface Display module The mobile terminal uses a TFT LCD. The interface uses a parallel bus to transfer the Command/ Data between QSC6020 and LCD. The main panel for 2608 is a 128x160 dot matrix TFT LCD module. LCM: 1.77”...

  • Page 104: Keyboard And Other Keys

    Figure 16 Display mechanical outline Keyboard and other keys The keyboard interface of the QSC6020 supports a 5x5 keyboard matrix. In this phone 5x4 sub matrixes are used (KEYSENSE0-4/KYPD0-3) Page 5-24 Company Confidential Issue1 Copyright © 2008 Nokia. All rights reserved.

  • Page 105

    RM-376 System Module and User Interface Figure 17 Keymat Figure 18 RM-376 Key matrix Issue1 Company Confidential Page 5-25 Copyright © 2008 Nokia. All rights reserved.

  • Page 106: Audio Concept

    FM_L Si4702B 1.8V for MIC LDO1 LDO2 BL D river +2LDO) LCD Backlight SC624A LED_1 & LE 20mA BL_EN_GPIO_52 I2C_GPIO_1 8,19 FLASH L Figure 19 Audio HW architecture Page 5-26 Company Confidential Issue1 Copyright © 2008 Nokia. All rights reserved.

  • Page 107: Internal Microphone

    RM-376 System Module and User Interface Internal microphone MIC1_P & MIC1_N inputs of 2608 schematic are used for the mobile terminal's internal microphone. MIC2_P & MIC2_N input are used for headsets. Every microphone input can have either a differential or single-ended AC connection to the QSC6020 c ircuit.

  • Page 108: Internal Speaker

    Figure 21 Internal earpiece circuitry Internal speaker The output power for the auxiliary speaker output is typically 0.6 W sine wave into impedance is 7 ohm in 1k Hz. The 2608 also supports a hands-free speaker. Figure 22 Internal speaker circuitry ibra circuitry Vibra is used for Vibra alarm function The vibra motor is connected to QSC6020 via VIB_DRV_N.

  • Page 109: Av Connector

    Table 3 AV i nter face electrical characteristics Signal Function/ Unit name Parameter HPH_AMP_O UT_L1 Ear L audio output uirement HPH_ AMP_ T_R1 Ear R audio output uirement MIC_BIAS MIcbias Voltage Issue1 Company Confidential Page 5-29 Copyright © 2008 Nokia. All rights reserved.

  • Page 110: Baseband Technical Specifications

    IF electrical charac istics Description ramet r Unit Notes Vchar harge Limit is given by charg ing IC Vchar I Charge Limit is given by char ging IC Charge GND Page 5-30 Company Confidential Issue1 Copyright © 2008 Nokia. All rights reserved.

  • Page 111: Rf Description

    , the Rx O circuit, Rx LO generation and distr tion ircuits, reference d clock circuits for th DCs, a d vario s inter e, control, and statu circuit Issue1 Company Confidential Page 5-31 Copyright © 2008 Nokia. All rights reserved.

  • Page 112: Transmitter (tx)

    DA s, the T phase- ked loop, the Tx VCO ircuit, T LO gen ation and distribution cuits, and various inte ce, control, and status cuits. Page 5-32 Company Confidential Issue1 Copyright © 2008 Nokia. All rights reserved.

  • Page 113

    Si4700 and supports mult iple us-mode . Powe anag ent is lso sim plified with an integrated regulator allowing direct conn ectio to a 2.7 5.5 V b atte Issue1 Company Confidential Page 5-33 Copyright © 2008 Nokia. All rights reserved.

  • Page 114

    RM-376 System Module and User Interface Figure 30 FM radio block diagram Page 5-34 Company Confidential Issue1 Copyright © 2008 Nokia. All rights reserved.

  • Page 115: Frequency Mappings

    3 825.09 870.09 826.2 871.2 77 827.31 872.31 114 828.42 873.42 151 829.53 874.53 4 825.12 870.12 41 826.23 871.23 78 827.34 872.34 115 828.45 873.45 152 829.56 874.56 Issue1 Company Confidential Page 5-35 Copyright © 2008 Nokia. All rights reserved.

  • Page 116

    335 835.05 880.05 188 830.64 875.64 225 831.75 876.75 262 832.86 877.86 299 833.97 878.97 336 835.08 880.08 189 830.67 875.67 226 831.78 876.78 263 832.89 877.89 337 835.11 880.11 Page 5-36 Company Confidential Issue1 Copyright © 2008 Nokia. All rights reserved.

  • Page 117

    373 836.19 881.19 837.3 882.3 447 838.41 883.41 484 839.52 884.52 521 840.63 885.63 374 836.22 881.22 411 837.33 882.33 448 838.44 883.44 485 839.55 884.55 522 840.66 885.66 Issue1 Company Confidential Page 5-37 Copyright © 2008 Nokia. All rights reserved.

  • Page 118

    558 841.74 886.74 595 842.85 887.85 632 843.96 888.96 669 845.07 890.07 706 846.18 891.18 559 841.77 886.77 596 842.88 887.88 633 843.99 888.99 845.1 890.1 707 846.21 891.21 Page 5-38 Company Confidential Issue1 Copyright © 2008 Nokia. All rights reserved.

  • Page 119

    847.14 892.14 848.25 893.25 847.17 892.17 848.28 893.28 847.2 892.2 848.31 893.31 847.23 892.23 848.34 893.34 847.26 892.26 848.37 893.37 847.29 892.29 848.4 893.4 847.32 892.32 848.43 893.43 Issue1 Company Confidential Page 5-39 Copyright © 2008 Nokia. All rights reserved.

  • Page 121

    Nokia Customer Care 6- Glossary Issue1 Company Confidential Page 6-1 Copyright © 2008 Nokia. All rights reserved.

  • Page 122

    RM-376 Glossary (This page left intentionally blank.) Page 6-2 Company Confidential Issue1 Copyright © 2008 Nokia. All rights reserved.

  • Page 123

    Differential to Single ended EDGE Enhanced data rates for global/GSM evaluation EGSM Extended GSM Energy management Electromagnetic compability Electromagnetic interference Electrostatic discharge Functional cover interface Flash Programming Tool Issue1 Company Confidential Page 6-3 Copyright © 2008 Nokia. All rights reserved.

  • Page 124

    Operations, maintenance, and administartion part Opamp Operational Amplifier Power amplifier Pocket Data Application Personal digital assistant PDRAM Program/Data RAM (on chip in Tiku) Personal Information Management Phase locked loop (Phone) Permanent memory Page 6-4 Company Confidential Issue1 Copyright © 2008 Nokia. All rights reserved.

  • Page 125

    Peak-to-peak voltage VSIM SIM voltage Wireless application protocol Watchdog XHTML Extensible hypertext markup language Zocus Current sensor, (used to monitor the current flow to and from the battery) Issue1 Company Confidential Page 6-5 Copyright © 2008 Nokia. All rights reserved.

  • Page 126

    RM-376 Glossary (This page left intentionally blank.) Page 6-6 Company Confidential Issue1 Copyright © 2008 Nokia. All rights reserved.

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