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Nokia RM-11 Series Troubleshooting Manual

Baseband
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CC Technical Documentation
RM-11 Series Transceivers
Troubleshooting - Baseband
©2005 Nokia Corporation
Issue 2 09/2005
Confidential

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Summary of Contents for Nokia RM-11 Series

  • Page 1 CC Technical Documentation RM-11 Series Transceivers Troubleshooting - Baseband ©2005 Nokia Corporation Issue 2 09/2005 Confidential...

  • Page 2: Table Of Contents

    Power Does Not Stay on or the Mobile Terminal is Jammed ............41 Charger Faults ............................43 Audio Faults ..............................44 Earpiece ..............................44 Microphone ............................. 45 Vibra ................................46 Display Faults ..............................47 Keypad Faults .............................49 Power Key ..............................49 ©2005 Nokia Corporation Page 2 Confidential Issue 2 09/2005...
  • Page 3 RM-11 CC Technical Documentation Troubleshooting - Baseband UI Modules............................... 50 FM Radio Faults ............................51 GPS Module ..............................52 ©2005 Nokia Corporation Issue 2 09/2005 Confidential Page 3...
  • Page 4 RM-11 Troubleshooting - Baseband Nokia Customer Care This page intentionally left blank. ©2005 Nokia Corporation Page 4 Confidential Issue 2 09/2005...

  • Page 5: Introduction

    Charging is controlled by UEM ASIC and EM SW. BLD-3 Li-ion battery is used as main power source and has a nominal capacity of 780 mAh. ©2005 Nokia Corporation Issue 2 09/2005 Confidential Page 5...
  • Page 6 RM-11 Troubleshooting - Baseband CC Technical Documentation Figure 1: Power distribution ©2005 Nokia Corporation Page 6 Confidential Issue 2 09/2005...

  • Page 7: Power Up And Reset

    PURX signal in order to always give the same watchdog response time to the MCU. The following diagram represents UEM start-up sequence from reset to power-on mode. ©2005 Nokia Corporation Issue 2 09/2005 Confidential...
  • Page 8 Reference signal PwrOnX Charger Detection UEMRSTX VFlash1 VCORE VANA 19.2MHz Clk PURX 32kHz XTAL t1 = 20ms t3 = 500us t2 = 200ms t4 = 20ms Figure 2: Power-up timing sequence ©2005 Nokia Corporation Page 8 Confidential Issue 2 09/2005...
  • Page 9 RM-11 CC Technical Documentation Troubleshooting - Baseband ©2005 Nokia Corporation Issue 2 09/2005 Confidential Page 9...

  • Page 10: Power Key

    SW initialization of the baseband. If the power on key does not indicate a valid power on situation the MCU powers off the baseband. ©2005 Nokia Corporation Page 10 Confidential...

  • Page 11: Charger Is Connected

    VBAT>VMSTR+ and UEM enters into reset sequence. If VBAT is detected to fall below VMSTR- during start-up charging, charging is cancelled. It restarts if a new rising edge on VCHAR input is detected (VCHAR rising above VCHDET+). ©2005 Nokia Corporation Issue 2 09/2005 Confidential Page 11...

  • Page 12: Rtc Alarm

    If the mobile terminal is in power off mode when the RTC alarm occurs, a wake-up procedure initiates. After the baseband is powered on, an interrupt is given to the MCU. When the RTC alarm occurs during active mode, an interrupt to the MCU is generated. ©2005 Nokia Corporation Page 12 Confidential...

  • Page 13: Power Off

    VR3 only turns off if both processors (DSP and MCU) request to be in sleep mode. ©2005 Nokia Corporation Issue 2 09/2005 Confidential...

  • Page 14: Power

    Vout (V) Notes Current (mA) VCORE Output voltage selectable 1.0V/1.3V/1.5V/1.8V DC/DC Default power at power-up is 1.5V Enabled always except during power-off mode VFLASH1 2.78 Enabled always except during power-off mode ©2005 Nokia Corporation Page 14 Confidential Issue 2 09/2005...
  • Page 15 Enabled when the receiver is on A charge pump used by VR1A is constructed around UEM. The charge pump works with Cbus (1.2 MHz Clk) and gives a 4.75 V regulated output voltage to RF. ©2005 Nokia Corporation Issue 2 09/2005 Confidential...

  • Page 16: Clock Distribution

    (VCTCXO), G503. This 19.2 MHz clock signal is generated at the RF and fed to RFCLK pin of the UPP. Figure 3: Waveform of the 19.2MHz clock (VCTCXO) ©2005 Nokia Corporation Page 16 Confidential Issue 2 09/2005...

  • Page 17: Rfconvclk (19.2 Mhz Digital)

    The UPP distributes the 19.2 MHz Clk to the internal processors, the DSP, and MCU, where the software multiplies this clock by seven for the DSP and by two for the MCU. Figure 4: RFCovCLk waveform ©2005 Nokia Corporation Issue 2 09/2005 Confidential...

  • Page 18: Cbusclk Interface

    CC Technical Documentation CBUSClk Interface A 1.2 MHz clock signal is used for CBUS, which is used by the MCU to transfer data between the UEM and UPP. Figure 5: CBUS data transfer ©2005 Nokia Corporation Page 18 Confidential Issue 2 09/2005...

  • Page 19: Dbus Clk Interface

    The system clock can be stopped during sleep mode by disabling the VCTCXO power supply from the UEM regulator output (VR3) and turning off the controlled output signal SleepX from the UPP. ©2005 Nokia Corporation Issue 2 09/2005 Confidential Page 19...

  • Page 20: Sleepclk (Digital)

    The UEM provides a 32 kHz sleep clock for internal use and to the UPP, where it is used for the sleep mode timing. Figure 7: 32 kHz Digital output from UEM ©2005 Nokia Corporation Page 20 Confidential Issue 2 09/2005...

  • Page 21: Sleepclk (Analog)

    UEM RTC circuit to turn on the mobile terminal during power off or sleep mode. Figure 8: 32 KHz analog waveform at 32 KHz crystal input ©2005 Nokia Corporation Issue 2 09/2005 Confidential Page 21...

  • Page 22: Flash Programming Error Codes

    Phone." Cx82 "The Prommer has detected a wrong ID byte in FbusTx from UPP->UEMC->Prommer the message, which it has received from the Phone." ©2005 Nokia Corporation Page 22 Confidential Issue 2 09/2005...
  • Page 23 FbusTx from UPP->UEMC->Prommer Cx84 "The phone has generated NAK signal during data block transfer." Cx85 "Data block handling timeout" Cx87 "Wrong MCU ID." RFClock UPP(Vcore) Startup Required startup for flashing Vflash1 VBatt flashing ©2005 Nokia Corporation Issue 2 09/2005 Confidential Page 23...

  • Page 24: Charging Operation

    A/D inputs in the mobile terminal. 4(GND) 3(BTEMP) 2(BSI) 1 (+) Figure 9: BLD-3 battery pack pin order Li-Ion VBATT Overcharge / Overdischarge BTEMP protection Figure 10: Interconnection diagram inside the battery pack ©2005 Nokia Corporation Page 24 Confidential Issue 2 09/2005...

  • Page 25: Charging Circuitry

    VCHAR VCHAR in VCHAR out VBATT Battery Vmstr Switch driver Over temperature detection Current VBATT Control logic sensing/limit Watchdog Comp PWM generator VBATT lim Figure 11: Charging circuitry ©2005 Nokia Corporation Issue 2 09/2005 Confidential Page 25...

  • Page 26: Charger Detection

    There are two PWM frequencies in use depending on the type of the charger: the 2-wire charger uses a 1 Hz and a 3-wire charger uses a 32 Hz. The duty cycle range is 0% to ©2005 Nokia Corporation Page 26...

  • Page 27: Audio

    UEM. Inputs for the microphone signals are differential. Also, the MICB1 is used for MIC1 and the MICB2 is used for MIC2 and MIC3 (Universal Headset). ©2005 Nokia Corporation Issue 2 09/2005 Confidential...

  • Page 28: Display And Keyboard

    LED driver for the LCD and keyboard. The color LCD uses 9-bit data transfer. The interface is quite similar to DCT3-type interface, except Command/Data information is transferred together with the data. The D/C bit is set during each transmitted byte. Figure 14: CLK frequency ©2005 Nokia Corporation Page 28 Confidential Issue 2 09/2005...

  • Page 29: Fm Radio

    Found Flag bit is set to high. If a band limit is reached during the search, the tuning system stops at the band limit, the Band Limit flag bit is set to high, and the Found Flag is set to high. ©2005 Nokia Corporation Issue 2 09/2005 Confidential...

  • Page 30: Fm Radio Test

    • FMCtrlClk = Test Point (FM02) : Control clock at 1.8 V • FMCtrlDa = Test Point (FM01) : Control data at 1.8 V Figure 16: FM Radio signals before Radio on ©2005 Nokia Corporation Page 30 Confidential Issue 2 09/2005...
  • Page 31 CC Technical Documentation Troubleshooting - Baseband • Ch1 : FMClk(32.768 KHz) • Ch2 : FMWrEn • Ch3 : FMctrlClk • Ch4 : FMctrlDA Figure 17: FM Radio signals after Radio on ©2005 Nokia Corporation Issue 2 09/2005 Confidential Page 31...

  • Page 32: Fm Radio Testing With Pop-Port Tm Headset

    2. Select the “Radio” menu from the mobile terminal’s User Interface Menu control. 3. Set a local station by selecting “Automatic Tuning” from the Radio menu and then pressing the Up arrow. ©2005 Nokia Corporation Page 32 Confidential Issue 2 09/2005...
  • Page 33 • If there is a signal present, the radio is functioning properly. • If there is no static or sound present, then inspect the FM radio, Baseband circuits, and audio circuits. ©2005 Nokia Corporation Issue 2 09/2005 Confidential Page 33...

  • Page 34: Accessories

    • HSear R P You can perform the following in Pop-port accessories: • Charging • Accessory detection • FBUS communication • USB communication • Fully differential audio interface for mono- and stereo outputs ©2005 Nokia Corporation Page 34 Confidential Issue 2 09/2005...

  • Page 35: Charging

    • CH3 = Battery voltage measure at R200 • CH4 = PURX Figure 20: Charging sequence In Channel 4, PURX is released, which this indicates when the mobile terminal operation goes from reset mode to power-on mode. ©2005 Nokia Corporation Issue 2 09/2005 Confidential Page 35...

  • Page 36: Pop-Port Tm Headset Detection

    Accessory detection on Pop-port is done digitally. The pins used for accessory detection are: • Pin 2 (Charge GND) • Pin 3 (ACI) • Pin 4 (Vout)) Figure 21: Waveform showing Pop-port accessory detection ©2005 Nokia Corporation Page 36 Confidential Issue 2 09/2005...

  • Page 37: Fbus Detection

    • Pin 2 (Charge GND) • Pin 3 (ACI) • Pin 4 (Vout) • Pin 6 (FBus Rx) • Pin 7 (FBus Tx) Figure 22: Waveform showing Pop-portT FBus communication ©2005 Nokia Corporation Issue 2 09/2005 Confidential Page 37...

  • Page 38: Accessory Detection Though Aci

    Pin 7 (USB -) Pin 11 (HSEAR N) Pin 8 (Data GND) Pin 12 (HSEAR P) Pin 13 (HSEAR R N) Pin 14 (HSEAR R P) Figure 23: Waveform showing accessory detection through ACI ©2005 Nokia Corporation Page 38 Confidential Issue 2 09/2005...

  • Page 39: Ruim (Sim Car)

    This picture may be taken when the SIM CARD is installed on the mobile terminal to measure the signals when the mobile terminal is turned on. The figure shows the proper waveforms when the interface is working. Figure 24: RUIM signal waveform ©2005 Nokia Corporation Issue 2 09/2005 Confidential Page 39...

  • Page 40: Test Points

    RM-11 Troubleshooting - Baseband Nokia Customer Care Test Points ©2005 Nokia Corporation Page 40 Confidential Issue 2 09/2005...
  • Page 41 RM-11 Nokia Customer Care Troubleshooting - Baseband ©2005 Nokia Corporation Issue 2 09/2005 Confidential Page 41...

  • Page 42: Troubleshooting

    Module" First, carry out a through visual check of the module. Ensure in particular that: • There are no mechanical damages • Soldered joints are OK • ASIC orientations are OK ©2005 Nokia Corporation Page 42 Confidential Issue 2 09/2005...

  • Page 43: Mobile Terminal Is Dead

    Flash Mobile terminal faults current is 35 mA Check BSI line X100, Is mobile terminal in R202, R203, and Change UEM Local Mode? C230. Are they OK? Repair OK restart ©2005 Nokia Corporation Issue 2 09/2005 Confidential Page 43...

  • Page 44: Flash Programming Does Not Work

    Change Flashbus TXD line on FBusTxO? low after the line has been high? Measure MBusRx (2.78V) Reflow or and MBUS (1.8V). Are they change UEM the same? Flash faults, page 2 ©2005 Nokia Corporation Page 44 Confidential Issue 2 09/2005...
  • Page 45 OK? the device ID? Is the mobile Mobile terminal totally terminal is dead? dead Does the mobile Mobile terminal not start up terminal is or is the phone jammed jammed? Retest ©2005 Nokia Corporation Issue 2 09/2005 Confidential Page 45...

  • Page 46: Power Does Not Stay On Or The Mobile Terminal Is Jammed

    D527. Are they Repair Change UPP Measure PURX and SleepX. Are they Is PURX OK? Change UEM high (1.8V)? Is SleepX OK? Change UPP Mobile terminal is jammed, page 2 ©2005 Nokia Corporation Page 46 Confidential Issue 2 09/2005...
  • Page 47 M easure FB usTx signal during m obile R eflow or change term inal info read. Is U P P. R etest it O K ? R eflow or change U E M . ©2005 Nokia Corporation Issue 2 09/2005 Confidential Page 47...

  • Page 48: Charger Faults

    L100, V100, C106, Vdc? C110 Read BTEMP value. Change UEM Is it ~25C (0319)? Remove (fuse) F100 and measure current. Change UEM Is it ~850mA? Make sure to use an ACP9 charger Retest ©2005 Nokia Corporation Page 48 Confidential Issue 2 09/2005...

  • Page 49: Audio Faults

    UEM on R151, R155, R152, R150, EARP and EARN? and R153. If OK, change the UEM. Check R177, R178, Audio and R179. If OK, faults, then change the page 2 earpiece. ©2005 Nokia Corporation Issue 2 09/2005 Confidential Page 49...

  • Page 50: Microphone

    XEAR, pin 11, 12, 13, and 14 on the C113, C114, C115, R163, bottom connector R976, R977, R165, R164, R112, R113. If OK, (X101)? Audio change UEM. faults, page 3 Retest ©2005 Nokia Corporation Page 50 Confidential Issue 2 09/2005...

  • Page 51: Vibra

    Troubleshooting -> Vibra Test. Select the following: Enable vibra state; 53% intensity; select Write. Measure the UEM signal on pin 2 of Change the UEM M300. Is the signal Change Vibra ©2005 Nokia Corporation Issue 2 09/2005 Confidential Page 51...

  • Page 52: Display Faults

    Measure the driver signal KLIGHT at Change UEM R304. Is the signal OK? Check N300, L300, Display V300, C302, C303, faults, C304, R300, R307, page 2 R315, R316, R317, and X301 connector ©2005 Nokia Corporation Page 52 Confidential Issue 2 09/2005...
  • Page 53 Check VIO and VFlash1 at X302. Also, check LCD signals LCDCSX (pin5), LCDCLK (pin4), LCDSDA Change UPP (pin3), and LCDRESX (pin2) at X302. Is signal OK? (Refer to Display section) Change Display ©2005 Nokia Corporation Issue 2 09/2005 Confidential Page 53...

  • Page 54: Keypad Faults

    Measure voltage at and R306. If OK, working? R306. Is it high? change UEM Measure voltage at R306 when power Retest key is pressed. Is it low? Keypad faults, Change S302 page 2 ©2005 Nokia Corporation Page 54 Confidential Issue 2 09/2005...
  • Page 55 X301. Are they OK, change UPP ~1.8V? Measure COL1-4 (P01-P04) signals between UPP and Change Z300 X302. Are they ~1.8V? Make sure there are no shorts on Z300. If OK, change UPP ©2005 Nokia Corporation Issue 2 09/2005 Confidential Page 55...
  • Page 56 C115. If OK, check L358. Is it 1.0V? change FM radio Pop-port connector chip (N356) (X101) on pin 11, 12, 13, 14. From Radio Radio faults 2 faults 2 ©2005 Nokia Corporation Page 56 Confidential Issue 2 09/2005...
  • Page 57 2 faults Measure VREF at Check C365 C365. Is it 1.6V? Measure VAFL/VAFR at C164/C168. Does Change FM Radio it have an audio chip (N356) signal? Retest Is FM Radio working? ©2005 Nokia Corporation Issue 2 09/2005 Confidential Page 57...
  • Page 58 Prior to performing diagnostics, perform a visual inspection on the GPS circuitry to see if the problem is physical (dislodged parts, corrosion, poor solder joints, etc.) ©2005 Nokia Corporation Page 58 Confidential...
  • Page 59 Determine why CE not sending signals? download signals SPI interface active? Replace GPS BB ASIC RF Data and clock? Replace GPS RF ASIC Debug RF front end Figure 26: GPS troubleshooting flowchart ©2005 Nokia Corporation Issue 2 09/2005 Confidential Page 59...
  • Page 60 RM-11 Troubleshooting - Baseband CC Technical Documentation This page intentionally left blank. ©2005 Nokia Corporation Page 60 Confidential Issue 2 09/2005...

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