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Nokia 2366i Baseband Description And Troubleshooting

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Nokia Customer Care
2366i (RM-155)
Mobile Terminal
Baseband Description and
Troubleshooting
©2007 Nokia Corporation
Issue 2 - February 2007
Company Confidential

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  • Page 1 Nokia Customer Care 2366i (RM-155) Mobile Terminal Baseband Description and Troubleshooting ©2007 Nokia Corporation Issue 2 - February 2007 Company Confidential...

  • Page 2: Table Of Contents

    2366i (RM-155) Baseband Description and Troubleshooting Nokia Customer Care Contents Page Introduction ..............................4 Baseband Components..........................5 Power-Up Sequence ........................... 7 GPS..................................9 GPS Troubleshooting ..........................9 GPS Phoenix Interface ..........................11 Flip Detection..............................11 Troubleshooting ............................11 USB .................................. 12 USB Troubleshooting ..........................13 USB Phoenix Interface ..........................14...
  • Page 3 2366i (RM-155) Nokia Customer Care Baseband Description and Troubleshooting Reference ............................... 33 Signal References ............................33 Issue 2 - February 2007 Company Confidential Page 3...

  • Page 4: Introduction

    Baseband Description and Troubleshooting Nokia Customer Care Introduction The 2366i baseband module is a tri-mode, code division multiple access (CDMA), dual-band engine and is based on the DCT4.5 standard. The baseband engine includes two major Application Specific Integrated Circuits (ASICs): •...

  • Page 5: Baseband Components

    2366i (RM-155) Nokia Customer Care Baseband Description and Troubleshooting Baseband Components G7100 19.2MHz FBus Tx MBus Tx/Rx 32KHz FBus Rx VCORE VR1A VFlash1 VR1B VANA D2200 D3000 VSIM D2800 Figure 1: PWB - bottom side Issue 2 - February 2007...
  • Page 6 2366i (RM-155) Baseband Description and Troubleshooting Nokia Customer Care Figure 2: PWB - top side Page 6 Company Confidential Issue 2 - February 2007...

  • Page 7: Power-Up Sequence

    2366i (RM-155) Nokia Customer Care Baseband Description and Troubleshooting Power-Up Sequence When the mobile terminal is dead or jammed, check the power-up sequence of the baseband area. Verify all regulator and reset signals are correct to ensure proper power up of the UEMCR and the UPP integrated circuits.
  • Page 8 2366i (RM-155) Baseband Description and Troubleshooting Nokia Customer Care CH1- PURX CH2-MBUS CH3-FBUSTX CH4-FBUSRX Data transfer has started (Fbus_RX) Figure 4: Measured power-on sequence and timing - flash programming Page 8 Company Confidential Issue 2 - February 2007...

  • Page 9: Gps

    2366i (RM-155) Nokia Customer Care Baseband Description and Troubleshooting The GPS turns on by using Vcore and VIO from the UEMCR IC. The GPS communicates with the UPP using the UART interface, turning on the GPS engine’s BB integrated circuit and RF integrated circuit.
  • Page 10 2366i (RM-155) Baseband Description and Troubleshooting Nokia Customer Care • VRF is enabled • VRF_GPS =2.78 V dc • GPS clock = 16.384 Mhz • Use Phoenix to run Test Mode 1 • USART activity • GPS antenna Figure 6: RF and BB GPS integrated circuits (ICs) •...

  • Page 11: Gps Phoenix Interface

    2366i (RM-155) Nokia Customer Care Baseband Description and Troubleshooting GPS Phoenix Interface Run the GPS Quick Test in Phoenix to check the GPS BB. CW Test fails unless CW Tone is injected into the GPS RF Connector Figure 7: Phoenix GPS Quick Test option...

  • Page 12: Usb

    2366i (RM-155) Baseband Description and Troubleshooting Nokia Customer Care When the mobile terminal is connected to the computer using a DKU-2 or CA-53 data cable, the PC provides Vbus (5V) to and pull down D+ a, d D – lines. The mobile terminal responds by pulling the D+ line high.

  • Page 13: Usb Troubleshooting

    2366i (RM-155) Nokia Customer Care Baseband Description and Troubleshooting USB Troubleshooting When troubleshooting the USB, refer to Figure Figure Figure 11, and Figure 12; and use the following procedure to check these points: 1. Connect the mobile terminal to the Phoenix flash station using a DKU-2 or CA-53 data cable.

  • Page 14: Usb Phoenix Interface

    Figure 13: USB Tests dialog box Display The Nokia 2366i has a 128 x 160 CSTN display with 65k colors. This display is controlled by the D2800 UPP through a parallel interface and powered by the UEMCR using VIO and VFlash1.

  • Page 15: Display Troubleshooting

    2366i (RM-155) Nokia Customer Care Baseband Description and Troubleshooting Display Troubleshooting When troubleshooting the display, refer to Figure 14, and perform the following checks: Figure 14: Display test points and chart 1. Check that the display is connected properly and is making good contact with LCD connector. Try replacing the LCD.

  • Page 16: Display And Keypad Backlight Troubleshooting

    2366i (RM-155) Baseband Description and Troubleshooting Nokia Customer Care 3. Check for signal activity on the LCD test points. If no activity, check or replace the D2800 UPP IC. 4. For the internal display, check the DIF (parallel) interface. 5. The frequency of the DIF CLK signal should be 4.8 MHz.

  • Page 17: Display Phoenix Interface

    2366i (RM-155) Nokia Customer Care Baseband Description and Troubleshooting Display Phoenix Interface Run the Display Test in Phoenix to check the display. Click Write to turn on the display and keypad backlight. Figure 17: Lights tab on the Display Test dialog box...

  • Page 18: Keypad Backlight Troubleshooting

    2366i (RM-155) Baseband Description and Troubleshooting Nokia Customer Care Keypad Backlight Troubleshooting Refer to Figure 15. When troubleshooting the keypad backlight, make these common checks. 1. Perform a visual inspection of the LCD connector and the all the components, including the LEDs.

  • Page 19: Audio Phoenix Interface

    2366i (RM-155) Nokia Customer Care Baseband Description and Troubleshooting Audio Phoenix Interface Run the audio test in Phoenix to check the audio functionality. MIC1 MIC3 MIC2s Earpiece Figure 18: Audio Test in Phoenix Table 1: Audio Test Parameters Audio Component Description MIC1 Routes the audio from the internal microphone to the headset speaker.

  • Page 20: System Connector

    2366i (RM-155) Baseband Description and Troubleshooting Nokia Customer Care System Connector The system connector is the Pop-port connector as shown in Figure 19. The mobile terminal supports Pop-port (differential) and Universal Headset (single-ended) accessories. The ACI signal detects the Pop-port accessory, while TIKU_GENIO(4) signal detects the Universal Headset.

  • Page 21: Accessory Detection

    2366i (RM-155) Nokia Customer Care Baseband Description and Troubleshooting Accessory Detection Figure 20 shows how the mobile terminal detects accessories. Dumb accessories pull down to the GND ACI Line. Smart accessories pull down the ACI line with a 56K Ohm resistor allowing communication between the accessory and the UEMCR.

  • Page 22: Battery Interface Circuit

    2366i (RM-155) Baseband Description and Troubleshooting Nokia Customer Care 2. Click Select to search for the appropriate software. Figure 22: EZ Flash in Phoenix 3. After selecting the correct software package, click Flash to write the software to the mobile terminal.
  • Page 23 2366i (RM-155) Nokia Customer Care Baseband Description and Troubleshooting Figure 23: Charging troubleshooting diagram Issue 2 - February 2007 Company Confidential Page 23...

  • Page 24: Alignment

    2366i (RM-155) Baseband Description and Troubleshooting Nokia Customer Care Table 2: Charger detection levels Voltage level Minimum Typical Maximum VCHdet+ 1.9 V dc 2.0 V dc 2.1 V dc VCHdet- 1.7 V dc 1.8 V dc 1.9 V dc VBATlim1+ 3.54 V dc...

  • Page 25: Final Ui Check

    2366i (RM-155) Nokia Customer Care Baseband Description and Troubleshooting Final UI Check Final UI performs basic user interface, audio and accessory tests on the baseband: • Ensures that all keymats work. • Ensures that the internal mic and earpiece work.

  • Page 26: Other Potential Problems

    2366i (RM-155) Baseband Description and Troubleshooting Nokia Customer Care Other Potential Problems Mobile Terminal Does Not Power Up • Check the baseband regulators – VR3, VIO, VFLASH1, VCORE dc/dc, PURX. • Check VCTCXO 19.2MHz signal at the D2800 input. • Check the power up sequence.

  • Page 27: Phoenix Tools

    Local Mode Although most Nokia mobile terminals automatically come up in Local Mode, ensure the mobile terminal setting is set to Local Mode. Figure 25: Setting Local Mode in Phoenix...

  • Page 28: Reading The Mobile Terminal

    2366i (RM-155) Baseband Description and Troubleshooting Nokia Customer Care Reading the Mobile Terminal To retrieve the software information in the mobile terminal, use the following procedure Figure 26: File menu in Phoenix 1. Open the File menu, and click Scan Product. Phoenix scans the product and displays the applicable menus and commands.
  • Page 29 2366i (RM-155) Nokia Customer Care Baseband Description and Troubleshooting Figure 27: Phone Information Window in Phoenix 2. After Phoenix retrieves the mobile terminal information, the menu structure changes to meet the requirements and settings of the mobile terminal. Save the mobile terminal file to the computer in case you need to retrieve it later.

  • Page 30: Running The Self Test

    2366i (RM-155) Baseband Description and Troubleshooting Nokia Customer Care Running the Self Test Running the Self Test is one way of quickly finding where a problem might be in the mobile terminal. 1. Open the Testing menu, and click Self Test.

  • Page 31: Checking The Baseband Regulator/General I/O Parameters

    2366i (RM-155) Nokia Customer Care Baseband Description and Troubleshooting Checking the Baseband Regulator/General I/O parameters 1. To view the baseband regulator and general I/O parameters, open the Testing menu, point to BB/Hdw (Baseband/Hardware), and click the appropriate command. Figure 30: Baseband Regulator/General I/O Command in Phoenix Click Get All to display all of the parameters.

  • Page 32: Flashing The Mobile Terminal

    2366i (RM-155) Baseband Description and Troubleshooting Nokia Customer Care Flashing the Mobile Terminal To flash the mobile terminal, open the Flashing menu and select the appropriate menu command. Figure 32: Flashing Menu Flashing - EZ-Flash 1. To EZ-Flash the mobile terminal, open the Flashing menu, and click EZ-Flash.
  • Page 33 2366i (RM-155) Nokia Customer Care Baseband Description and Troubleshooting Reference Signal References Figure 34: Signal references 1 Issue 2 - February 2007 Company Confidential Page 33...
  • Page 34 2366i (RM-155) Baseband Description and Troubleshooting Nokia Customer Care Figure 35: Signal references 2 Page 34 Company Confidential Issue 2 - February 2007...
  • Page 35 2366i (RM-155) Nokia Customer Care Baseband Description and Troubleshooting Issue 2 - February 2007 Company Confidential Page 35...
  • Page 36 2366i (RM-155) Baseband Description and Troubleshooting Nokia Customer Care This page intentionally left blank. Page 36 Company Confidential Issue 2 - February 2007...

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