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Nokia NPD-1 Series Troubleshooting - Bb

Nokia NPD-1 Series Troubleshooting - Bb

Transceivers
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CCS Technical Documentation
NPD-1 Series Transceivers
Troubleshooting — BB
Nokia Corporation
Issue 1 11/2002
Confidential

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  • Page 1 CCS Technical Documentation NPD-1 Series Transceivers Troubleshooting — BB Nokia Corporation Issue 1 11/2002 Confidential...
  • Page 2 NPD-1 Troubleshooting — BB CCS Technical Documentation Nokia Corporation Page 2 Confidential Issue 1 11/2002...

  • Page 3: Table Of Contents

    Power doesn’t stay on or the phone is jammed ............31 Charger ........................33 Audio faults .......................34 Earpiece........................34 Microphone ......................35 MIDI........................36 Vibra........................37 Display faults ......................38 Keypad faults ......................40 Power key........................ 40 UI modules ......................41 Nokia Corporation Issue 1 11/2002 Confidential Page 3...
  • Page 4 NPD-1 Troubleshooting — BB CCS Technical Documentation Nokia Corporation Page 4 Confidential Issue 1 11/2002...

  • Page 5: Troubleshooting Overview

    32 kHz clock supply. The period of the sleep/wake up cycle (slotted cycle) is 1.28N seconds, where N= 0, 1, 2, depending on the slot cycle index. Eagle supports standard Nokia two-wire and three-wire chargers (ACP-x and LCH-9). However, the three-wire chargers are treated as two-wire chargers. The PWM control signal for controlling the three-wire charger is ignored.

  • Page 6: Flash Programming

    The flash programming equipment is connected to the baseband using test pads for gal- vanic connection. The test pads are allocated in such a way that they can be accessed when the phone is assembled. The flash programming interface uses the VPP, FBUSTX, Nokia Corporation Page 6 Confidential...

  • Page 7: Baseband Power Up

    BSI signal will be pulled high, note a falling edge is required to load the compare register. Flashing • Flash programming is done by using FBUSTX, FBUSRX, MBUS, and BSI lines. Nokia Corporation Issue 1 11/2002 Confidential Page 7...
  • Page 8 MCU will indicate to prommer that it has been noticed, by using FBUSTX signal. After this, it reports UPP type ID and is ready to receive secondary boot code to its internal SRAM. (See the following figure.) Nokia Corporation Page 8 Confidential...
  • Page 9 This boot code asks MCU to report prommer phone’s configuration information, including flash device type. Now prommer can select and send algorithm code to MCU SRAM (and SRAM/Flash self-tests can be executed). (See the following figure.) Nokia Corporation Issue 1 11/2002 Confidential Page 9...

  • Page 10: Power Up And Reset

    Vflahs2 is used for active cover. The UEM internal watchdogs are running during the UEM reset state, with the longest watchdog time selected. If the watchdog expires, the UEM returns to power off state. The UEM watchdogs are internally Nokia Corporation Page 10 Confidential...
  • Page 11 Reference signal PwrOnX Charger Detection UEMRSTX VFlash1 VCORE VANA 19.2MHz Clk PURX 32kHz XTAL t1 = 20ms t3 = 500us t2 = 200ms t4 = 20ms Figure 5: Power on sequence and timing Nokia Corporation Issue 1 11/2002 Confidential Page 11...

  • Page 12: Power Up With Pwr Key

    START_UP charge circuitry. Connecting a charger forces VCHAR input to rise above charger detection threshold, VCH . By detection, start-up charging is DET+ started. UEM generates 100 mA constant output current from the connected charger’s Nokia Corporation Page 12 Confidential Issue 1 11/2002...

  • Page 13: Rtc Alarm Power Up

    In sleep mode, VCTCXO is shut down and 32 kHz sleep clock oscillator is used as refer- ence clock for the baseband. Nokia Corporation Issue 1 11/2002 Confidential Page 13...

  • Page 14: Power Distribution

    VCORE is supplied by a DC/DC switching supply, which provides nominal voltages and currents (See Table 1.) UEM supplies also voltages VR1A, VR1B, VR2, VR3, VR4, VR5, VR6, and VR7 for RF. (See Table 2.) Nokia Corporation Page 14 Confidential Issue 1 11/2002...

  • Page 15: Clock Distribution

    The main clock signal for the baseband is generated from the voltage and temperature controlled crystal oscillator VCTCXO (G501). This 19.2 MHz sine wave clock signal is fed to RFCLK pin of UPP. (See Figure 7 for the waveform.) Nokia Corporation Issue 1 11/2002 Confidential...

  • Page 16: Rfconvclk (19.2 Mhz Digital)

    The UPP distributes the 19.2MHz internal clock to the DSP and MCU, where SW multi- plies this clock by seven for the DSP and by two for the MCU. (See the following figure.) Figure 8: RF CovClk waveform Nokia Corporation Page 16 Confidential...

  • Page 17: Cbusclk Interface

    DBUSClk Interface A 9.6 MHz clock signal is used for DBUS, which is used by the DSP to transfer data between UEM and UPP. (See following figure.) Figure 10: Dbus data transfer Nokia Corporation Issue 1 11/2002 Confidential Page 17...

  • Page 18: Sleepclk (Digital)

    When the system enters sleep mode or power off mode, the external 32KHz crystal pro- vides a reference to the UEM RTC circuit to turn on the phone during power off or sleep mode. (See next figure.) Nokia Corporation Page 18 Confidential...

  • Page 19: Charging Operation

    BSI and BTEMP pins of battery connector. Phone has 100 kΩ pull-up resis- tors for these lines so that they can be read by A/D inputs in the phone. 4(GND) 3(BTEMP) 2(BSI) 1 (+) Figure 13: BLB-2 battery pack pin order Nokia Corporation Issue 1 11/2002 Confidential Page 19...

  • Page 20: Charging Circuitry

    2 V (VCHdet+ threshold) by UEM charging starts. VCHARDET signal is generated to indicate the presence of the charger for the SW. The charger identification/acceptance is controlled by EM SW. Nokia Corporation Page 20 Confidential...

  • Page 21: Charge Control

    MIC1, MIC,2 and MIC3. MIC1 input is used for the phone's internal microphone; MIC2 input is used for headsets (HDB-4, BHF-1, and CARK-126), Loopset (LPS-4). MIC3 input is used for third-party accessories (2.5mm Jack). Every microphone Nokia Corporation Issue 1 11/2002 Confidential...

  • Page 22: Display And Keyboard

    D/C bit set during each transmitted byte by MCU SW. The following figure is the waveform for LCD interface. Figure 17: LCD Interface Accessory Differential-ended external audio accessory connection is supported. Headset and data Nokia Corporation Page 22 Confidential Issue 1 11/2002...

  • Page 23: Test Points

    The driving signal for the active cover is provided from the output of the MIDI audio amplifier. It is AC-coupled to the cover input. Test Points BB test points, regulators, and BB ASICs diagrams follow. Nokia Corporation Issue 1 11/2002 Confidential Page 23...
  • Page 24 19.2 Mhz (UPP) 19.2 Mhz (UPP) 19.2 Mhz (UPP) FLASH FLASH VDC_DC VDC_DC TP2- SleepX TP996- GENIO 14 TP1- PURX TP999- GENIO 18 TP3-SleepClk TP995- TP997- GENIO 17 GENIO 15 TP998- GENIO 16 Nokia Corporation Page 24 Confidential Issue 1 11/2002...

  • Page 25: Troubleshooting/Flowcharts

    7 Charging fault First, carry out a thorough visual check of the module. Ensure in particular that: • there is no mechanical damage • soldered joints are OK • ASIC orientations are OK Nokia Corporation Issue 1 11/2002 Confidential Page 25...

  • Page 26: Top Troubleshooting Map

    NPD-1 Troubleshooting — BB CCS Technical Documentation Top troubleshooting map Phone dead Flash faults Phone is jammed Charger Top 2 Nokia Corporation Page 26 Confidential Issue 1 11/2002...
  • Page 27 NPD-1 CCS Technical Documentation Troubleshooting — BB Top 2 Audio faults Display faults Keypad faults Nokia Corporation Issue 1 11/2002 Confidential Page 27...

  • Page 28: Phone Is Totally Dead

    OK ? Phone current is <= 35 m A Check BSI line Is phone in LOCA L X110, R202, Change UEM MODE ? R203, C230 are they OK Repair OK restart Nokia Corporation Page 28 Confidential Issue 1 11/2002...

  • Page 29: Flash Programming Doesn't Work

    V101.if OK, then Flash pads . Does Change UEM or waveform match Figure 1 Change The phone does not set Flashbus TXD line low after the line has been high. Flash faults page 2 Nokia Corporation Issue 1 11/2002 Confidential Page 29...

  • Page 30: Phone Is Jammed

    Can you read the manufacturer ID and Change flash device ID? Is the phone totally GO TO dead? Phone is dead GO TO Phone doesn't start up Phone is or phone is jammed? jammed Re-test Nokia Corporation Page 30 Confidential Issue 1 11/2002...

  • Page 31: Power Doesn't Stay On Or The Phone Is Jammed

    Is it OK ? R522, R517, R518, VR1A andVR3.) Measure PURX If OK change G501 and SleepX at test points TP1 and TP2. Are they high (1.8V) ? Change UPP Jammed page 2 Change UEM Nokia Corporation Issue 1 11/2002 Confidential Page 31...
  • Page 32 Has the phone been Flash the phone after 32 seconds flashed? Change UPP and re-flash. If problem still exist, change UE M and reflash the phone Read phone info. Is it OK? Retest Nokia Corporation Page 32 Confidential Issue 1 11/2002...

  • Page 33: Charger

    F100, L100, V100, Is it > 3.0 Vdc? C106. Unit Read BTEMP value. Change UEM Is it ~ 25C (0319)? Remove (fuse) F100 and measure Change UEM current. Is it ~350-390 mA? Retest Nokia Corporation Issue 1 11/2002 Confidential Page 33...

  • Page 34: Audio Faults

    UEM on EARP and the bias voltage on EARN? one end of C193 (2.1V) If OK change the UEM. Check R150, C180, and C181. If OK then change earpiece. Audio faults 2 Nokia Corporation Page 34 Confidential Issue 1 11/2002...

  • Page 35: Microphone

    Is the signal going Check R160 if it is out of the UEM at shorted to GND. XEAR, pin 10 on the If OK change UEM. bottom connector ? Retest Audio faults 3 Nokia Corporation Issue 1 11/2002 Confidential Page 35...

  • Page 36: Midi

    Set phone in LOCAL m ode. Use Phoenix to digital loop MIC1 to HF single ended output. Also Set GenIO(28) high For AM S, select different Nokia ringing tone Talk to MIC1.Check signal @ C157. Is Change the UEM signal OK? Check signal @ MIDI speaker pads.

  • Page 37: Vibra

    PN_ACCESSORY --> PN_OBJ_ROUTING_REQ --> PN_OBJ_PC --> UTID_100 --> ACC_VIBRA_CTRL_REQ. Select "ACC_ON" and click "Send' Measure the UEM signal on pin 2 of Change the UEM M300. Is the signal OK? Change VIBRA Nokia Corporation Issue 1 11/2002 Confidential Page 37...

  • Page 38: Display Faults

    For AM S, m ake a call from the call box Measure the UEM signal @ R306 Change UEM. Is the signal OK? Measure the voltage Change LM 2795 @ LEDs Is it ~ 3.8V? Display foults 2 Change LED's Nokia Corporation Page 38 Confidential Issue 1 11/2002...
  • Page 39 TEST_DISPLAY_SET --> NUM_SB: --> TEST_SB_UI_DISPLAY_PATTE RN -->SB_LENGTH. Select "TEST_PATTERN_ALTPIXELS" and click "Send' Check signal @ pin 1 ("1"), 2 ("0"), 4 Change UPP (data), and 5 (clock) Are the signals OK? Change Display Nokia Corporation Issue 1 11/2002 Confidential Page 39...

  • Page 40: Keypad Faults

    Check S300, and Is the power key S300. R304. working? Is it HIGH? If OK change UEM. Measure voltage at S300 when power Change S300 key is pressed. Is it HIGH? Keypad faults 2 Nokia Corporation Page 40 Confidential Issue 1 11/2002...

  • Page 41: Ui Modules

    UI modules Keypad faults 2 Press malfunctioning key Retest or keys on the keypad. Are the signals correct ? Retest all key Change Z300, are presses the signals correct ? Change UPP (D400) Nokia Corporation Issue 1 11/2002 Confidential Page 41...
  • Page 42 NPD-1 Troubleshooting — BB CCS Technical Documentation Nokia Corporation Page 42 Confidential Issue 1 11/2002...

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