Nokia RH-66 Troubleshooting Manual
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Nokia RH-66 Troubleshooting Manual

Nokia RH-66 Troubleshooting Manual

Baseband description and troubleshooting
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Nokia Customer Care
2115i/2116/2116i (RH-66)
Mobile Terminals
Baseband Description and
Troubleshooting
©2005 Nokia Corporation
Issue 1 03/2005
Company Confidential

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  • Page 1 Nokia Customer Care 2115i/2116/2116i (RH-66) Mobile Terminals Baseband Description and Troubleshooting ©2005 Nokia Corporation Issue 1 03/2005 Company Confidential...

  • Page 2: Table Of Contents

    2115i/2116/2116i (RH-66) Baseband Description and Troubleshooting Contents Page Introduction ..............................5 Baseband and RF Architecture ........................ 6 Power Up and Reset ............................ 7 Power Up ................................ 9 Power Key ..............................9 Charger ................................ 9 RTC Alarm ..............................10 Power Off ..............................10 Power Consumption and Operation Modes ..................10...
  • Page 3 2115i/2116/2116i (RH-66) Nokia Customer Care Baseband Description and Troubleshooting Flashlight Faults ............................51 GPS Faults ..............................52 ©2005 Nokia Corporation Issue 1 03/2005 Company Confidential Page 3...
  • Page 4 2115i/2116/2116i (RH-66) Baseband Description and Troubleshooting Nokia Customer Care This page intentionally left blank. ©2005 Nokia Corporation Page 4 Company Confidential Issue 1 03/2005...

  • Page 5: Introduction

    (slotted cycle) is 1.28N seconds, where N= 0, 1, 2, depending on the slot cycle index. The mobile terminal 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 controlling the 3-wire charger is ignored.

  • Page 6: Baseband And Rf Architecture

    2115i/2116/2116i (RH-66) Baseband Description and Troubleshooting Baseband and RF Architecture VBatt PRODTP Battery Flash Audio SIM Reader DC/DC GenIO JTAG Control Charger Bottom Conn. MBus UEMC VANA FBusRx FBusT V SIM VR1A CBus VR1B Vflash1 Core Vflash2 Dlight MBus Sleep Clk...

  • Page 7: Power Up And Reset

    2115i/2116/2116i (RH-66) Nokia Customer Care Baseband Description and Troubleshooting Power Up and Reset The UEMC ASIC controls the power up and reset. The baseband can power up in the following ways: • Pressing the Power button, which means grounding the PWRONX pin of the UEMC •...
  • Page 8 2115i/2116/2116i (RH-66) Baseband Description and Troubleshooting Figure 2: Power-on sequence and timing ©2005 Nokia Corporation Page 8 Company Confidential Issue 1 03/2005...

  • Page 9: Power Up

    2115i/2116/2116i (RH-66) Nokia Customer Care Baseband Description and Troubleshooting Figure 3: Measured power-on sequence and timing Power Up The mobile terminal can power up using the power key, a charger, or an RTC alarm. Power Key When the power key is pressed, the UEMC enters the power-up sequence. Pressing the power key causes the PWRONX pin on the UEMC to ground.

  • Page 10: Rtc Alarm

    2115i/2116/2116i (RH-66) Baseband Description and Troubleshooting Charging is controlled by START_UP charge circuitry when it detects the VBAT level to be below the master reset threshold (V ). Connecting a charger forces the VCHAR input MSTR- to rise above the charger detection threshold (VCH...

  • Page 11: Active Mode

    2115i/2116/2116i (RH-66) Nokia Customer Care Baseband Description and Troubleshooting Sleep mode is exited either by the expiration of a sleep clock counter in the UEMC or by some external interrupt (generated by a charger connection, key press, headset connection, etc.). The VCTCXO is shut down in sleep mode and the 32 kHz sleep clock oscillator is used as a reference clock for the baseband.
  • Page 12 2115i/2116/2116i (RH-66) Baseband Description and Troubleshooting The heart of the power distribution is the power control block inside the UEMC. It includes all the voltage regulators and feeds the power to the entire system. The UEMC handles hardware power-up functions so the regulators are not powered and the power up reset (PURX) is not released if the battery voltage is less than 3 V.

  • Page 13: Clock Distribution

    2115i/2116/2116i (RH-66) Nokia Customer Care Baseband Description and Troubleshooting Clock Distribution RFClk (19.2 MHz Analog) The main clock signal for the baseband is generated from the voltage and temperature controlled crystal oscillator (VCTCXO) and sent to the UPP at pin M5.

  • Page 14: Rfconvclk (19.2 Mhz Digital)

    2115i/2116/2116i (RH-66) Baseband Description and Troubleshooting RFConvClk (19.2 MHz digital) The UPP distributes the 19.2 MHz internal clock to the DSP and MCU, where the software multiplies this clock by seven for the DSP and by two for the MCU.

  • Page 15: Cbus Clk Interface

    2115i/2116/2116i (RH-66) Nokia Customer Care Baseband Description and Troubleshooting CBUS Clk Interface A 1.2 MHz clock signal is used for CBUS, which is used by the MCU to transfer data between the UEMC and the UPP. Figure 6: CBUS data transfer DBUS Clk Interface A 9.6 MHz clock signal is used for DBUS, which is used by the DSP to transfer data...

  • Page 16: Sleepclk (Digital)

    2115i/2116/2116i (RH-66) Baseband Description and Troubleshooting SleepCLK (Digital) The 32 kHz sleep clock in the UEMC is also used in the UPP for sleep mode timing. Figure 8: 32 kHz Digital output from UEMC SleepCLK (Analog) When the system enters sleep mode or power off mode, the external 32 KHz crystal provides a reference to the UEMC RTC circuit to turn on the mobile terminal during power-off or sleep mode.

  • Page 17: Flash Programming Error Codes

    2115i/2116/2116i (RH-66) Nokia Customer Care Baseband Description and Troubleshooting Flash Programming Error Codes The following characteristics apply to the information in Table • Error codes can be seen from the test results or from Phoenix's flash-tool. • Underlined information means that the connection under consideration is being used for the first time.
  • Page 18 2115i/2116/2116i (RH-66) Baseband Description and Troubleshooting Table 3: Flash Programming Error Codes (Continued) Error Description Not Working Properly A204 "The flash manufacturer and device IDs in the Flash existing algorithm files do not match with the IDs received from the target phone."...

  • Page 19: Charging Operation

    2115i/2116/2116i (RH-66) Nokia Customer Care Baseband Description and Troubleshooting Charging Operation Battery The 2115i/2116/2116i uses a Lithium-Ion cell battery with a capacity of 1070 mAh. Reading a resistor inside the battery pack on the BSI line indicates the battery size. The mobile terminal measures the approximate temperature of the battery on the BTEMP line with an NTC resistor on the PCB.

  • Page 20: Charger Detection

    2115i/2116/2116i (RH-66) Baseband Description and Troubleshooting UEMC 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 Charger Detection Connecting a charger creates voltage on the VCHAR input of the UEMC. Charging starts when the UEMC detects the VCHAR input voltage level above 2 V (VCHdet+ threshold).

  • Page 21: Charge Control

    2115i/2116/2116i (RH-66) Nokia Customer Care Baseband Description and Troubleshooting If the charger is accepted and identified, the appropriate charging algorithm is initiated. Figure 12: Charging circuit Charge Control In active mode, charging is controlled by the UEMC’s digital part. Charging voltage and current monitoring are used to limit charging into a safe area.

  • Page 22: Display And Keyboard

    2115i/2116/2116i (RH-66) Baseband Description and Troubleshooting UEMC. Inputs for the microphone signals are differential types. Also, MICBIAS1 is used for MIC1 and MICBIAS2 is used for MIC2. The 2115i/2116/2116i also support a hands-free speaker, which is driven by an IHF audio amplifier.

  • Page 23: Accessories

    2115i/2116/2116i (RH-66) Nokia Customer Care Baseband Description and Troubleshooting Accessories The 2115i/2116/2116i supports Pop-port accessories. Detection of the accessories is done through the ACI signal. Figure 15: Pop-port connector pin out The pin out on the Pop-port connector is as follows: •...
  • Page 24 2115i/2116/2116i (RH-66) Baseband Description and Troubleshooting Figure 16 shows the actual charging sequence. The channels shown are: • CH1 = Charging current across the .22 Ohm (R2200) resistor on UEMK • CH2 = Charger voltage measure at V2000 • CH3 = Battery voltage measure at R2200 •...

  • Page 25: Pop-Port Headset Detection

    2115i/2116/2116i (RH-66) Nokia Customer Care Baseband Description and Troubleshooting Pop-port Headset Detection Accessory detection on the Pop-port is done digitally. The pins used for this accessory detection are: • Pin 2 (Charge GND) • Pin 3 (ACI) • Pin 4 (Vout) Figure 17: Waveform showing Pop-port accessory detection ©2005 Nokia Corporation...

  • Page 26: Fbus Detection

    2115i/2116/2116i (RH-66) Baseband Description and Troubleshooting FBUS Detection FBUS communication in Pop-port is done through the following lines: • Pin 2 (Charge GND) • Pin 3 (ACI) • Pin 4 (Vout) • Pin 6 (FBUS Rx) • Pin 7 (FBUS Tx)
  • Page 27 2115i/2116/2116i (RH-66) Nokia Customer Care Baseband Description and Troubleshooting Table 4: Accessory Detection Signals (Continued) Audio/FM Pin 13 (HSEAR R N) Pin 14 (HSEAR R P) Figure 19: Waveform showing accessory detection through ACI ©2005 Nokia Corporation Issue 1 03/2005...

  • Page 28: Sim Car

    2115i/2116/2116i (RH-66) Baseband Description and Troubleshooting SIM CAR The 2115i/2116/2116i supports SIM CAR. Use the waveform in Figure 20 to verify that the sim_vcc, sim_i/o, cim_clk, and sim_rst signals are activated in the correct sequence at power up. The figure shows the proper waveforms when the interface is working. See...

  • Page 29: Gps Module

    2115i/2116/2116i (RH-66) Nokia Customer Care Baseband Description and Troubleshooting GPS Module The GPS circuitry utilizes RF signals from satellites stationed in geosynchronous orbit to determine longitude and latitude of the mobile terminal. The GPS circuitry is completely separate of the CE circuitry and is located almost exclusively on the secondary side of the PWB underneath the display module.
  • Page 30 2115i/2116/2116i (RH-66) Baseband Description and Troubleshooting Nokia Customer Care GPS DATA Baseband Core RF-BB GPS Clock (1.87V) TI RF RF Control SPI Interface RF Control Oscillator ASIC (1.8V) VBATT VRF 2.8V RTC CAL VBATT TCXO CAL GPS ENGINE 1.8V GPS BB/Cellular I/F...

  • Page 31: Test Points - Bottom

    2115i/2116/2116i (RH-66) Nokia Customer Care Baseband Description and Troubleshooting Test Points - Bottom Vibra Vbat vibra MIC1N MIC1P Audio amplifier 32KHz crystal Figure 22: Test points (bottom 1) ©2005 Nokia Corporation Issue 1 03/2005 Company Confidential Page 31...
  • Page 32 2115i/2116/2116i (RH-66) Baseband Description and Troubleshooting VCORE driver VCORE LED driver VBAT in to DC/DC 19.2MHz clock GPS_CLK VR1A VR1B VCORE LIN VFLASH1 VANA VRF_GPS Figure 23: BB test points (bottom 2) ©2005 Nokia Corporation Page 32 Company Confidential Issue 1 03/2005...
  • Page 33 2115i/2116/2116i (RH-66) Nokia Customer Care Baseband Description and Troubleshooting VBAT Power on switch IHFP POWERONX IHFN Figure 24: BB test points (bottom 3) ©2005 Nokia Corporation Issue 1 03/2005 Company Confidential Page 33...

  • Page 34: Test Points - Top

    2115i/2116/2116i (RH-66) Baseband Description and Troubleshooting Test Points - Top Torch light LED Display connector VBATT EARR EARN Figure 25: BB test points (top 1) ©2005 Nokia Corporation Page 34 Company Confidential Issue 1 03/2005...
  • Page 35 2115i/2116/2116i (RH-66) Nokia Customer Care Baseband Description and Troubleshooting RF convolution CBUS_EN UEMINT Keypad LED GPS_EN_RESET clock SLEEP_X DBUS_EN CBUS_CLK FBUSTXI SMPS_CLK UEMRSTX PURX SLEEP_CLK FBUSRXI MBUSRX MBUSTX CBUS_DA Keypad LEDs Figure 26: BB test points (top 2) ©2005 Nokia Corporation...

  • Page 36: Troubleshooting

    2115i/2116/2116i (RH-66) Baseband Description and Troubleshooting Troubleshooting First, carry out a through visual check of the module. Ensure in particular that: • There are no mechanical damages • Soldered joints are okay • ASIC orientations are okay The following hints should help finding the cause of the problem when the circuitry seems to be faulty.

  • Page 37: Mobile Terminal Is Dead

    2115i/2116/2116i (RH-66) Nokia Customer Care Baseband Description and Troubleshooting Mobile Terminal is Dead If current is zero, check the battery connector to make sure Vbat makes contact. Mobile Terminal is If current is too high, check for shorts. Dead Make sure all BB regulators are at their respective voltage levels (VANA, VIO, VCORE, VFlash1, and VR3).

  • Page 38: Flash Faults

    2115i/2116/2116i (RH-66) Baseband Description and Troubleshooting Flash Faults Flash Faults Does the mobile Measure BSI pulse during Check BSI line at terminal set the Flash programming. Is it X2000, C2000, and Flashbus TXD line high after the C2003. startup? Measure FBusRX (2.78V)
  • Page 39 2115i/2116/2116i (RH-66) Nokia Customer Care Baseband Description and Troubleshooting Flash Faults Page 2 Can you read the Re-flow or change manufacturer ID and the Flash. the device ID? Is the mobile Mobile terminal totally Terminal is dead? Dead Does the mobile...

  • Page 40: Power Does Not Stay On Or The Mobile Terminal Is Jammed

    2115i/2116/2116i (RH-66) Baseband Description and Troubleshooting Power Does Not Stay on or the Mobile Terminal is Jammed Mobile Terminal is Jammed Measure VIO, Check VBATT, VIO, VCORE, VFlash1, VCORE, VFlash1, VANA, and VR3 Repair capacitors VANA, VR3 capacitors. voltages. Are they...
  • Page 41 2115i/2116/2116i (RH-66) Nokia Customer Care Baseband Description and Troubleshooting Mobile Terminal is Jammed Is the ESN present? Rebuild the ESN Page 2 Has the mobile Does the mobile device been fully Perform a full terminal shut down erased and erase and reflash...

  • Page 42: Charger Faults

    2115i/2116/2116i (RH-66) Baseband Description and Troubleshooting Charger Faults Charger Faults Connect the charger and make sure the battery is connected. Does the battery bar Retest work (scroll)? Measure voltage Check the DC jack, over V2000. F2000, L2000, V2000, Is it >3.0 Vdc? and C2004.

  • Page 43: Audio Faults

    2115i/2116/2116i (RH-66) Nokia Customer Care Baseband Description and Troubleshooting Audio Faults Audio Faults Replace the Is the earpiece earpiece. Is it Retest working? working now? Set mobile terminal in Local Mode. Use Phoenix Troubleshooting > Phone Control > Phone State tab >...
  • Page 44 2115i/2116/2116i (RH-66) Baseband Description and Troubleshooting Audio Faults Page 2 Is the Change the microphone microphone. Is it Retest working? working now? Set the mobile terminal in Local Mode. Use Phoenix Troubleshooting > Phone Control > Phone State Tab >...
  • Page 45 2115i/2116/2116i (RH-66) Nokia Customer Care Baseband Description and Troubleshooting Audio Faults Page 3 Select a ring tone Is the internal and measure signals handsfree speaker Change IHF at L2003 and L2004. (IHF) working? Are the signals OK? Measure GenIO28. Is Change UPP it OK (1.8V)?
  • Page 46 2115i/2116/2116i (RH-66) Baseband Description and Troubleshooting Audio Faults Page 4 Measure VBATT Is the vibra Check VBATT line. voltage pin 1 on the Repair. working? Is it OK? vibra. Is it OK? Use UI Menu > Profile > Normal > Customize >...

  • Page 47: Display Faults

    2115i/2116/2116i (RH-66) Nokia Customer Care Baseband Description and Troubleshooting Display Faults Display Faults Are the keyboard LEDs turned on Measure VBATT Check VBATT line when the mobile voltage at L2400. Is and C2405, C2407, terminal is turned on it okay? and L2401.
  • Page 48 2115i/2116/2116i (RH-66) Baseband Description and Troubleshooting Display Faults Page 2 Change the display Does the display module. Does it Retest start? work? Measure VIO and Change UEM Flash1. Check LCD signals LCDCSX (pin5), LCDCLK (pin4), LCDSDA (pin3), and Change UPP LCDRESX (pin2) at X302.

  • Page 49: Keypad Faults

    2115i/2116/2116i (RH-66) Nokia Customer Care Baseband Description and Troubleshooting Keypad Faults Keypad Faults Is the power key Measure voltage at Check C2406 and Replace any bad working? S2418. Is it high? C2409. Are they OK? components. Change the UEM Measure voltage at...
  • Page 50 2115i/2116/2116i (RH-66) Baseband Description and Troubleshooting Keypad Faults Page 2 Change keypad Are the UI module module. Is it Retest keys working? working? Measure ROW0-4 Make sure there signals between are no shorts on UPP and keypad at Z2400. If OK, every dome key.
  • Page 51 2115i/2116/2116i (RH-66) Nokia Customer Care Baseband Description and Troubleshooting Flashlight Faults Flashlight Faults Are the flashlight LEDs turned on Measure VBATT Check VBATT line at when the mobile voltage at C2405. Is terminal is on and L2400. it OK? when pressing the...
  • Page 52 2115i/2116/2116i (RH-66) Baseband Description and Troubleshooting GPS Faults GPS Faults Troubleshoot CE Is VCORE at 1.5V? power supply Is VIO at 1.8V? GPS_RF_CLK Troubleshoot CE (19.2MHz) OK? VCTCXO circuit If the BB ASIC is being GPS_EN_RESET held held in reset,...

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