User Guide

ManualsBrandsNokia ManualsCell PhoneN70

Summary of content (60 pages)

PAGE 1
PAGE 3
RM-84/99 BB Troubleshooting and Manual Tuning Guide Nokia Customer Care Table of Contents Baseband troubleshooting...........................................................................................................................................................1–5 Dead or jammed device troubleshooting...............................................................................................................................1–6 General power checking troubleshooting...............................
PAGE 4
Nokia Customer Care RM-84/99 BB Troubleshooting and Manual Tuning Guide List of Figures Figure 1 Main troubleshooting tree..........................................................................................................................................1–5 Figure 2 SysCLK from C7528 & C7531........................................................................................................................................1–9 Figure 3 SleepCLK from R7558............................................
PAGE 5
RM-84/99 BB Troubleshooting and Manual Tuning Guide Nokia Customer Care Baseband troubleshooting Context This section is intended to be a guide for localising and repairing electrical faults. The fault repairing is divided into troubleshooting paths. The following main troubleshooting tree describes the different baseband troubleshooting paths to be followed in fault situations. Figure 1 Main troubleshooting tree Issue 1 Company Confidential Copyright ©2005 Nokia. All Rights Reserved.
PAGE 10
Nokia Customer Care RM-84/99 BB Troubleshooting and Manual Tuning Guide Figure 2 SysCLK from C7528 & C7531 Figure 3 SleepCLK from R7558 Page 1–10 Company Confidential Copyright ©2005 Nokia. All Rights Reserved.
PAGE 12
RM-84/99 BB Troubleshooting and Manual Tuning Guide Nokia Customer Care Battery current measuring fault troubleshooting Page 1–12 Company Confidential Copyright ©2005 Nokia. All Rights Reserved.
PAGE 13
RM-84/99 BB Troubleshooting and Manual Tuning Guide Nokia Customer Care Flash programming fault troubleshooting Figure 4 Flash programming fault troubleshooting 1/2 Issue 1 Company Confidential Copyright ©2005 Nokia. All Rights Reserved.
PAGE 14
Nokia Customer Care RM-84/99 BB Troubleshooting and Manual Tuning Guide Figure 5 Flash programming fault troubleshooting 2/2 Page 1–14 Company Confidential Copyright ©2005 Nokia. All Rights Reserved.
PAGE 15
RM-84/99 BB Troubleshooting and Manual Tuning Guide Nokia Customer Care Figure 6 Flashing pic 1. Take single trig measurement for the rise of the BSI signal. Figure 7 Flashing pic 2. Take single trig measurement for the rise of the BSI signal. Issue 1 Company Confidential Copyright ©2005 Nokia. All Rights Reserved.
PAGE 16
RM-84/99 BB Troubleshooting and Manual Tuning Guide Nokia Customer Care CMT SDRAM memory troubleshooting Figure 8 CMT SDRAM CLK from pin J2806 Page 1–16 Company Confidential Copyright ©2005 Nokia. All Rights Reserved.
PAGE 17
RM-84/99 BB Troubleshooting and Manual Tuning Guide Nokia Customer Care CMT NOR flash fault troubleshooting Figure 9 NOR CLK from J2813 Issue 1 Company Confidential Copyright ©2005 Nokia. All Rights Reserved.
PAGE 19
RM-84/99 BB Troubleshooting and Manual Tuning Guide Nokia Customer Care Legend Take single trig measurement on the falling edge of the CE signal (=J5001). Figure 10 COMBO NAND in boot pic 1. Issue 1 Company Confidential Copyright ©2005 Nokia. All Rights Reserved.
PAGE 22
Nokia Customer Care RM-84/99 BB Troubleshooting and Manual Tuning Guide Figure 11 USB 1: D-TXD (POP-PORT pin6) and D+RXD (POP-PORT pin7) voltage levels when USB connected. Figure 12 USB 2: Take single triggered measurement on the rising edge of the Helen usb0_txen (J4813) line. Page 1–22 Company Confidential Copyright ©2005 Nokia. All Rights Reserved.
PAGE 24
RM-84/99 BB Troubleshooting and Manual Tuning Guide Nokia Customer Care Legend SIM CLK frequency = 3.2MHz (Take single triggered measurement in boot on the VSIM1 line). Figure 13 SIM interface signals Page 1–24 Company Confidential Copyright ©2005 Nokia. All Rights Reserved.
PAGE 26
RM-84/99 BB Troubleshooting and Manual Tuning Guide Nokia Customer Care Legend Take singe trig measurement on the rising edge of the DAT signal. Figure 14 MMC card initialization Legend Take single trig measurement on the rising edge of the DAT signal. Figure 15 Data transfer Keyboard troubleshooting Context There are two possible failure modes in the keyboard module: • One or more keys can be stuck, so that the key does not react when a keydome is pressed.
PAGE 29
RM-84/99 BB Troubleshooting and Manual Tuning Guide Nokia Customer Care FM radio troubleshooting Certificate restoring for BB5.0 products Context After replacing a defective flash memory component in BB5.0 products, Certificate Restoring must be carried out to make the phone functional again. Issue 1 Company Confidential Copyright ©2005 Nokia. All Rights Reserved.
PAGE 30
Nokia Customer Care RM-84/99 BB Troubleshooting and Manual Tuning Guide Certificate restoring for BB5.0 products is basically the same process as IMEI / ESN Rebuild for DCT-4 generation products. All tunings (RF & Baseband, UI) must be done after replacing the flash IC. The procedure for Certificate Restoring when Flash IC has been replaced: • Flash the phone with the latest available software (Use FPS-8 or FPS-10, USB Flashing does not work for a dead BB5.0 phone). • Create a request file.
PAGE 31
RM-84/99 BB Troubleshooting and Manual Tuning Guide Nokia Customer Care Product is automatically set according to the phone support module which was opened manually, but the flash files cannot be found because the correct data cannot be read from the phone automatically. Code must be chosen manually, it determines the correct flash files to be used. Please choose the correct product code (can be seen in the phone type label) from the dropdown list. Flash Type must be set to Phone as Manufactured.
PAGE 32
Nokia Customer Care RM-84/99 BB Troubleshooting and Manual Tuning Guide Programming is completed when Flashing Completed message is displayed. The product type designator and MCU SW version are displayed in the status bar. vi Close the SW Update window and then choose File → Close Product . 2. Create a Request file. For this procedure, you must supply +12 V to CU-4 Control Unit from an external power supply. i To connect the phone with Phoenix, choose File → Scan Product .
PAGE 33
RM-84/99 BB Troubleshooting and Manual Tuning Guide Nokia Customer Care iv Name the file so that you can easily identify it, and click Open. The name of the file and its location are shown. v To create the Request file, click Start. vi When the file for Certificate Restore has been created, send it to Nokia as an e-mail attachment. 3. Restore Certificate. For this procedure, you must supply +12 V to CU-4 Control Unit from an external power supply. i Save the reply file sent by Nokia to your computer.
PAGE 34
Nokia Customer Care RM-84/99 BB Troubleshooting and Manual Tuning Guide iv From the Tools menu, choose Certificate Restore and select Process a response file in the Action pane. v To choose the location where response file is saved, click Browse. vi Click Open. The name of the file and the path where it is located are shown. Page 1–34 Company Confidential Copyright ©2005 Nokia. All Rights Reserved.
PAGE 35
RM-84/99 BB Troubleshooting and Manual Tuning Guide Nokia Customer Care vii To write the file to phone, click Start. Next action After a successful rewrite, you must retune the phone completely by using Phoenix tuning functions. Note: CARRY OUT ALL TUNINGS (BASEBAND, RF, UI)! Display module troubleshooting General instructions for display troubleshooting The first step is to verify with a working display that the fault is not on the display module itself. The display module cannot be repaired.
PAGE 36
RM-84/99 BB Troubleshooting and Manual Tuning Guide Nokia Customer Care Backlight dim or not working at all Backlight LED components are inside the display module. Backlight failure can also be in the connector or in the backlight power source in the main engine of the phone. Backlight is also controlled automatically by the ambient light sensor. This means that in case the display is working (image OK) but the backlight is not, follow the Display and keyboard backlight troubleshooting (Page 1–38).
PAGE 38
RM-84/99 BB Troubleshooting and Manual Tuning Guide Nokia Customer Care Display and keyboard backlight troubleshooting Context The device has one LED driver that provides current for both display and keyboard backlights. Keyboard backlights are turned ON only in dark conditions. This is controlled by the Ambient Light Sensor (ALS). Also the brightness of the display is adjusted by the ambient light sensor. You can enable/disable ALS with the help of Phoenix service software.
PAGE 39
RM-84/99 BB Troubleshooting and Manual Tuning Guide Nokia Customer Care ALS troubleshooting Context • If a phototransistor is broken, replace it with a typical phototransistor. • The phototransistor has to be also replaced, if calibration values are lost by some other reason (e.g. after replacing the NOR memory chip D3000). • If the phototransistor is changed, the calibration value in the phone memory has to be changed to the default value ‘1’.
PAGE 42
RM-84/99 BB Troubleshooting and Manual Tuning Guide Nokia Customer Care Bluetooth troubleshooting Introduction to Bluetooth troubleshooting There are two main Bluetooth problems that can occur: Problem Description Detachment of the BT antenna. This would most likely happen if the device has been dropped repeatedly to the ground. It could cause the BT antenna to become loose or partially detached from the PWB.
PAGE 44
RM-84/99 BB Troubleshooting and Manual Tuning Guide Nokia Customer Care Bluetooth settings for Phoenix Steps 1. 2. 3. 4. 5. 6. Start Phoenix service software. From the File menu, choose Open Product, and then choose the correct type designator from the Product list. Connect the phone to a docking station in the local mode. Choose Testing → Bluetooth LOCALS . Locate JBT-9’s serial number (12 digits) found in the type label on the back of JBT-9.
PAGE 45
RM-84/99 BB Troubleshooting and Manual Tuning Guide Nokia Customer Care 6. To run the tests, click Start. Figure 18 Bluetooth self tests in Phoenix Issue 1 Company Confidential Copyright ©2005 Nokia. All Rights Reserved.
PAGE 49
RM-84/99 BB Troubleshooting and Manual Tuning Guide Nokia Customer Care BT audio failure troubleshooting Audio troubleshooting Audio troubleshooting test instructions Differential external earpiece and internal earpiece outputs can be measured either with a single-ended or a differential probe. Issue 1 Company Confidential Copyright ©2005 Nokia. All Rights Reserved.
PAGE 50
RM-84/99 BB Troubleshooting and Manual Tuning Guide Nokia Customer Care When measuring with a single-ended probe each output is measured against the ground. Internal handsfree output is measured using a current probe, if a special low-pass filter designed for measuring a digital amplifier is not available. Note also that when using a current probe, the input signal frequency must be set to 2kHz. The input signal for each loop test can be either single-ended or differential.
PAGE 51
RM-84/99 BB Troubleshooting and Manual Tuning Guide Loop test External Mic to Internal Earpiece Input terminal XMICP and GND Nokia Customer Care Output terminal EarP and GND Path Input gain [dB] voltag (fixed) e [mVpp] Different ial output voltage [mVp-p] Outpu t DC level [V] Outp ut curre nt [mA] -4.5 1000 600 1.2 NA -5 1000 560 0 25m A (calc .) 22.7 100 1360 1.
PAGE 52
Nokia Customer Care RM-84/99 BB Troubleshooting and Manual Tuning Guide Measurement data Figure 19 Single-ended output waveform of the Ext_in_HP_out measurement when earpiece is connected. Page 1–52 Company Confidential Copyright ©2005 Nokia. All Rights Reserved.
PAGE 53
RM-84/99 BB Troubleshooting and Manual Tuning Guide Nokia Customer Care Legend If a special low-pass filter designed for measuring digital amplifiers is unavailable, the measurement must be performed with a current probe and the input signal frequency must be 2kHz. Figure 20 Differential output waveform of the Ext_in_IHF_out out loop measurement when speaker is connected. Figure 21 Single-ended output waveform of the HP_in_Ext_out loop when microphone is connected.
PAGE 54
RM-84/99 BB Troubleshooting and Manual Tuning Guide Nokia Customer Care Internal earpiece troubleshooting Before you begin Familiarize yourself with the Audio troubleshooting test instructions (Page 1–49). Page 1–54 Company Confidential Copyright ©2005 Nokia. All Rights Reserved.
PAGE 55
RM-84/99 BB Troubleshooting and Manual Tuning Guide Nokia Customer Care Internal microphone troubleshooting Before you begin Familiarize yourself with the Audio troubleshooting test instructions (Page 1–49). Issue 1 Company Confidential Copyright ©2005 Nokia. All Rights Reserved.
PAGE 56
Nokia Customer Care RM-84/99 BB Troubleshooting and Manual Tuning Guide IHF troubleshooting Before you begin Familiarize yourself with the Audio troubleshooting test instructions (Page 1–49). Page 1–56 Company Confidential Copyright ©2005 Nokia. All Rights Reserved.
PAGE 57
RM-84/99 BB Troubleshooting and Manual Tuning Guide Nokia Customer Care External microphone troubleshooting Before you begin Familiarize yourself with the Audio troubleshooting test instructions (Page 1–49). Issue 1 Company Confidential Copyright ©2005 Nokia. All Rights Reserved.
PAGE 58
RM-84/99 BB Troubleshooting and Manual Tuning Guide Nokia Customer Care External earpiece troubleshooting Before you begin Familiarize yourself with the Audio troubleshooting test instructions (Page 1–49). Page 1–58 Company Confidential Copyright ©2005 Nokia. All Rights Reserved.
PAGE 60
RM-84/99 BB Troubleshooting and Manual Tuning Guide Nokia Customer Care Baseband manual tuning guide Energy management calibration Before you begin Energy Management (EM) calibration is performed to calibrate the setting (gain and offset) of AD converters in several channels (that is, battery voltage, BSI, battery current) to get an accurate AD conversion result. Hardware setup: • An external power supply is needed. • Supply 12V DC from an external power supply to CU-4 to power up the phone.