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Nokia RH-3 Series Troubleshooting - Bb

Nokia RH-3 Series Troubleshooting - Bb

Transceivers
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CCS Technical Documentation
RH-3 Series Transceivers
Troubleshooting — BB
Nokia Corporation
Issue 1 06/2003
Confidential

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  • Page 1 CCS Technical Documentation RH-3 Series Transceivers Troubleshooting — BB Nokia Corporation Issue 1 06/2003 Confidential...
  • Page 2 RH-3 Troubleshooting — BB CCS Technical Documentation Nokia Corporation Page 2 Confidential Issue 1 06/2003...

  • Page 3: Table Of Contents

    Phone is totally dead ....................26 Flash programming doesn‘t work ................27 Power doesn‘t stay on or the phone is jammed............29 Charger ........................31 Audio faults ......................32 Display faults......................36 Keypad faults......................38 Nokia Corporation Issue 1 06/2003 Confidential Page 3...
  • Page 4 RH-3 Troubleshooting — BB CCS Technical Documentation Nokia Corporation Page 4 Confidential Issue 1 06/2003...

  • Page 5: Baseband Troubleshooting

    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. RH-3 supports standard Nokia 2-wire and 3-wire chargers (ACP-x and LCH-x). However, the 3-wire chargers are treated as 2-wire chargers. The PWM control signal for control- ling the three-wire charger is ignored.

  • Page 6: Hw Architecture

    UPP, the MCU enters flash programming mode. In order to avoid accidental entry to the flash-programming mode, the MCU only waits for a specified time to get input data from the flash prommer. If the timer expires without any data being received, the MCU will Nokia Corporation Page 6 Confidential...

  • Page 7: Flashing

    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 Figure 2 on page 8). Nokia Corporation Issue 1 06/2003 Confidential...
  • Page 8 (See Figure 3 on page 8 and Figure 4 on page 9.) FLASH_2 CH1 = PURX CH2 = MBUS CH3 = FBUSTX CH4 = FBUSRX Measure points Production test pattern (J396) Figure 3: Flashing, continued Nokia Corporation Page 8 Confidential Issue 1 06/2003...

  • Page 9: Power Up And Reset

    The UEM watchdogs are internally acknowledged at the rising edge of the PURX signal in order to always give the same watchdog response time to the MCU. The following timing diagram (Figure 5 on page 10) represents UEM start-up sequence Nokia Corporation Issue 1 06/2003 Confidential...
  • Page 10 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 Page 10 Confidential Issue 1 06/2003...

  • Page 11: Power Up With Pwr Key

    ) is detected START_UP charge is terminated. MSTR+ Monitoring the VBAT voltage level is done by charge control block (CHACON). MSTRX=‘1’ output reset signal (internal to UEM) is given to UEM’s RESET block when VBAT>V MSTR+ Nokia Corporation Issue 1 06/2003 Confidential Page 11...

  • Page 12: Rtc Alarm Power Up

    There are several sub-states in the active mode depending on the phone present state of the phone such as: burst reception, burst transmission, if DSP is working, etc. Nokia Corporation Page 12 Confidential...

  • Page 13: Power Distribution

    VFLASH2) and the core voltage, which provide nominal voltages and currents according to Table 1. UEM supplies also voltages VR1A, VR1B, VR2, VR3, VR4, VR5, VR6, and VR7 for RF. See Table 2. Nokia Corporation Issue 1 06/2003 Confidential Page 13...

  • Page 14: Clock Distribution

    The main clock signal for the baseband is generated from the voltage and temperature controlled crystal oscillator VCTCXO (G500). This 19.2 MHz sine wave clock signal is fed to RFCLK pin of UPP. (See Figure 7 on page 15 for the waveform.) Nokia Corporation Page 14 Confidential...

  • Page 15: Rfconvclk (19.2 Mhz Digital)

    CBUSClk Interface A 1.2 MHz clock signal is use for CBUS, which is used by the MCU to transfer data between UEM and UPP. (See Figure 9 on page 16 for Cbus data transfer.) Nokia Corporation Issue 1 06/2003 Confidential...

  • Page 16: Dbusclk Interface

    Figure 10: Dbus data transferring The system clock is stopped during sleep mode by disabling the VCTCXO power supply (VR3) from the UEM regulator output by turning off the controlled output signal SleepX from UPP. Nokia Corporation Page 16 Confidential Issue 1 06/2003...

  • Page 17: Sleepclk (Digital)

    UEM RTC circuit to turn on the phone during porwer off or sleep mode. (See Figure 12 on page 17.) Figure 12: 32kHz analog waveform at 32KHz crystal input Nokia Corporation Issue 1 06/2003 Confidential...

  • Page 18: Charging Operation

    Both 2- and 3-wire type chargers are supported. For the 3-wire charger, the control line is not supported and not connected to the Baseband ASICs. See Figure 15 on page 19 for details. Nokia Corporation Page 18 Confidential...

  • Page 19: Charger Detection

    If the charger is accepted and identified, the appropriate charging algorithm is initiated. Tomahawk Charger connector F100 X102 L100 ________ + VCHAR 42R/100MHz 1.5A C106 V100 1PMT16AT3 CHARGER(4:0) Figure 16: Charging circuit Nokia Corporation Issue 1 06/2003 Confidential Page 19...

  • Page 20: Charge Control

    DCT3 type interface, except Command/Data information is transferred together with the data. D/C bit set during each transmitted byte by MCU SW. Figure 17 on page 21 is the waveform for LCD interface. Nokia Corporation Page 20 Confidential...

  • Page 21: Accessory

    ACI detection algorithm. However, the ACI pin is always grounded. It is end user's responsibility to set the phone for TTY/TDD since there are too many dif- ferent TTY/TDD devices to be detected. Nokia Corporation Issue 1 06/2003 Confidential Page 21...

  • Page 22: Test Points

    CCS Technical Documentation Test Points FBUSRX PURX DBUSCLK GENIO14 GENIO17 MBUSRX GENIO16 RFCONVCLK GENIO18 GENIO15 MBUSTX UEMRSTX FBUSTX CBUSCLK Vcore VR1B VR1A VFlash1 VANA Figure 18: RH-3 BB test points, regulators, and BB ASICs Nokia Corporation Page 22 Confidential Issue 1 06/2003...

  • Page 23: Troubleshooting

    7 Charging fault 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 Nokia Corporation Issue 1 06/2003 Confidential Page 23...

  • Page 24: Top Troubleshooting Map

    RH-3 Troubleshooting — BB CCS Technical Documentation Top troubleshooting map Phone dead Flash faults Phone is jammed Charger Top 2 Nokia Corporation Page 24 Confidential Issue 1 06/2003...
  • Page 25 RH-3 CCS Technical Documentation Troubleshooting — BB Top 2 Audio faults Display faults Keypad faults Nokia Corporation Issue 1 06/2003 Confidential Page 25...

  • Page 26: Phone Is Totally Dead

    <= 30 mA programming OK? jammed Flash faults Phone current is 35 mA Check BSI line Is phone in LOCAL X110, R202, Change UEM MODE ? R203, C230. Are they OK? Repair OK restart Nokia Corporation Page 26 Confidential Issue 1 06/2003...

  • Page 27: Flash Programming Doesn't Work

    V101. If OK, then and Flash pads. Does change UEM or waveform match Figure Change The phone does not set Flashbus TXD line low after the line has been high. Flash faults page 2 Nokia Corporation Issue 1 06/2003 Confidential Page 27...
  • Page 28 Can you read the manufacturer ID Change Flash and the Device Is the phone totally Phone is dead? dead Phone doesn't Phone is start up or the jammed phone is jammed? Retest Nokia Corporation Page 28 Confidential Issue 1 06/2003...

  • Page 29: Power Doesn't Stay On Or The Phone Is Jammed

    R522, R517, R518, VR1A and VR3.) If OK, Measure PURX 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 06/2003 Confidential Page 29...
  • Page 30 Has the phone Flash the phone after 32 seconds being flashed? Change UPP and reflash. If problem still exists, change UEM and reflash the phone. Read phone info. Is it OK? Retest Nokia Corporation Page 30 Confidential Issue 1 06/2003...

  • Page 31: Charger

    F100, L100, V100, Is it > 3.0 Vdc? C106. 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 06/2003 Confidential Page 31...

  • Page 32: Audio Faults

    L120, R180. Check EARP and EARN? the bias voltage on one end of C193 (2.1V). If OK, change UEM Check R150, C180, and C181. If OK, then change earpiece. Audio faults 2 Nokia Corporation Page 32 Confidential Issue 1 06/2003...
  • Page 33 Is the signal going Check if R160 is out of the UEM at shorted to GND. If XEAR, pin 10 on the OK, change UEM bottom connector? Retest Audio faults 3 Nokia Corporation Issue 1 06/2003 Confidential Page 33...
  • Page 34 GenIO(28) high. Talk to MIC1. Check signal @C157. Is Change the UEM signal OK? Check signal @MIDI speaker Change speaker pads. Is signal OK? Audio Change MIDI faults 4 amplifier N150 Nokia Corporation Page 34 Confidential Issue 1 06/2003...
  • Page 35 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 06/2003 Confidential Page 35...

  • Page 36: Display Faults

    LIGHT_CONTROL_TARGER_KBD. Select "LIGHT_STATE_BLINK" and click "Send' Measure the UEM signal @R306. Is Change the UEM the signal OK? Measure the voltage Change LM2795 @LEDs. Is it ~3.8V? Display faults 2 Change LEDs Nokia Corporation Page 36 Confidential Issue 1 06/2003...
  • Page 37 TEST_UI_TEST_REQ --> TEST_DISPLAY_SET -->NUM_SB -- > TEST_SB_UI_DISPLAY_PATTERN -->SB_LENGTH. Select "TEST_PATTERN_ALTPIXELS"and click "Send" Check signal @ pin 1 ("1"), 2 ("0"), 4 (data), and 5 Change UPP (clock). Are the signals OK? Change Display Nokia Corporation Issue 1 06/2003 Confidential Page 37...

  • Page 38: Keypad Faults

    Measure voltage at R304. If OK, change working? S300. Is it High? Measure voltage at S300 when power Change S300 key is pressed. Is it High? Phone is jammed Keypad faults 2 Nokia Corporation Page 38 Confidential Issue 1 06/2003...
  • Page 39 CCS Technical Documentation Troubleshooting — BB Keypad faults 2 Press malfunctioning key or keys. Are the Retest signals correct? Change Z300. Are Retest all key the signals correct? presses Change UPP (D400) Nokia Corporation Issue 1 06/2003 Confidential Page 39...
  • Page 40 RH-3 Troubleshooting — BB CCS Technical Documentation Nokia Corporation Page 40 Confidential Issue 1 06/2003...

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