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CONFIDENTIAL 2 (44) NHM—2/5/6 Repairhints Customer Care Europe, Middle East & Africa 3410 Version 4.0 Approved SCCE Training Group Date 20.11.2002 GENERAL -How to use this document Put the colored schematics behind this manual. Now you are able to follow these specifications with graphical layouts and it is easier for you to find the components and measuring points.
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This document is intended for use by authorized NOKIA Service Centers only. The purpose of this document is to provide some further service information for NOKIA 3310 / 3330/3410 phones. It contains a lot of collected tips and hints to find failures and repair solutions easily.
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CONFIDENTIAL 4 (44) NHM—2/5/6 Repairhints Customer Care Europe, Middle East & Africa 3410 Version 4.0 Approved SCCE Training Group Date 20.11.2002 Contents PREFACE General Introduction List of flowcharts List of figures Important Information AM Suppression tuning CHAPTER 1 HW – CHANGES Difficulties when removing B-Cover (SB13 / NHM-5) Intermittent switch-off problem (SB 28 / NHM-5, SB 7 / NHM 6) Correct component replacement in UB4_ 10 or later of NHM-5 (SB053) and NHM-6 (SB31)
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CONFIDENTIAL 5 (44) NHM—2/5/6 Repairhints Customer Care Europe, Middle East & Africa 3410 Version 4.0 Approved SCCE Training Group Date 20.11.2002 CHAPTER 8 CONTACT SERVICE MCU ROM Checksum failed CCONT Interface failed COBBA parallel/serial failed DSP Alive test failed EEPROM sec/tune checksum failed CHAPTER 9 SIMCARD FAULTS Display message “Insert SIMcard”...
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CONFIDENTIAL 6 (44) NHM—2/5/6 Repairhints Customer Care Europe, Middle East & Africa 3410 Version 4.0 Approved SCCE Training Group Date 20.11.2002 List of flowcharts Flowchart 3-1 Phone does not switch on Chapter 3 Flowchart 4-1 Flash update not possible Chapter 4 Flowchart 6-1 Low standby/Operation mode time Chapter 6...
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If it is necessary to change D301, take a look at chapter 2 on page 14 “Changing of D301” how to proceed. Furthermore never change D301 if you have no permission to rewrite IMEI – otherwise all phone data will be lost! To avoid further problems send the phone to a higher-level NOKIA Service Center. Changing of COBBA N800 If it is necessary to change COBBA, you have to rewrite IMEI &...
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CONFIDENTIAL 8 (44) NHM—2/5/6 Repairhints Customer Care Europe, Middle East & Africa 3410 Version 4.0 Approved SCCE Training Group Date 20.11.2002 AM-suppression tuning in NHM-2/5/6 Due to a software failure in the latest NHM-2/5/6 DLL 311.15.00 it is necessary to run AM-suppression tuning in a special way, as described in the following pages.
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CONFIDENTIAL 9 (44) NHM—2/5/6 Repairhints Customer Care Europe, Middle East & Africa 3410 Version 4.0 Approved SCCE Training Group Date 20.11.2002 To save the tuning values you have to click the “Save” button in this window. Afterwards start the tuning procedure again by pressing the “Measure” button, because tuning in PCN yet must be done. Next appearing window is shown below.
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CONFIDENTIAL 10 (44) NHM—2/5/6 Repairhints Customer Care Europe, Middle East & Africa 3410 Version 4.0 Approved SCCE Training Group Date 20.11.2002 Set generator to the signal values mentioned in the control box. Then press the “OK” button. To save the tuning values of AM-suppression in PCN band, do not use the “Yes” button. As in the case of EGSM900 choose the “Cancel”...
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CONFIDENTIAL 11 (44) NHM—2/5/6 Repairhints Customer Care Europe, Middle East & Africa 3410 Version 4.0 Approved SCCE Training Group Date 20.11.2002 CHAPTER 1: HW-CHANGES Difficulties when removing B-Cover (SB13 / NHM-5) Cut away the guiding pin of the D-Cover (see Figure 1-1), if customer critisizes bad removal of B-Cover. After this procedure it is necessary to assemble the phone with a torque screwdriver prepared for 30Ncm! Figure 1-1 Intermittent switch - off problem (SB17 / NHM-2, SB 28 &...
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CONFIDENTIAL 12 (44) NHM—2/5/6 Repairhints Customer Care Europe, Middle East & Africa 3410 Version 4.0 Approved SCCE Training Group Date 20.11.2002 Correct component replacement in UB4_ 10 or later of NHM-5 (SB053) and NHM-6 (SB31) If changing the power amplifier (N502) & antenna switches (Z502) is necessary, it is recommended to replace with the same type as the removed one.
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CONFIDENTIAL 13 (44) NHM—2/5/6 Repairhints Customer Care Europe, Middle East & Africa 3410 Version 4.0 Approved SCCE Training Group Date 20.11.2002 HW Change description Overview of NHM-2/6 UB4_10 08.06 UB4_10 08.17 UB4_11 09.03 UB4_11 09.15 UB4_11 09.23 UB4_12 10.03 UB4_12 10.24 UB4_10 08.07...
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CONFIDENTIAL 14 (44) NHM—2/5/6 Repairhints Customer Care Europe, Middle East & Africa 3410 Version 4.0 Approved SCCE Training Group Date 20.11.2002 CHAPTER 2: CHANGING OF D301 This chapter describes step by step how to change FLASH/EEPROM-combination D301 in NHM-2/5/6 phones: If you want to change D301 the first you always have to do is a backup of the phone identity information.
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CONFIDENTIAL 15 (44) NHM—2/5/6 Repairhints Customer Care Europe, Middle East & Africa 3410 Version 4.0 Approved SCCE Training Group Date 20.11.2002 Figure 2-3 Now by pressing on the squares with the three dots you have to choose a MCU Image file and PPM file for your phone. At this point it is not necessary to choose the right PPM file, because this SW-update is used only to make it possible to power the phone on.
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CONFIDENTIAL 16 (44) NHM—2/5/6 Repairhints Customer Care Europe, Middle East & Africa 3410 Version 4.0 Approved SCCE Training Group Date 20.11.2002 As the next step open Software / Set Factory Values, choose Full factory and press Set: Figure 2-5 You receive following message: Figure 2-6 After pressing Yes you will get order to Restore Default User Settings –...
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CONFIDENTIAL 17 (44) NHM—2/5/6 Repairhints Customer Care Europe, Middle East & Africa 3410 Version 4.0 Approved SCCE Training Group Date 20.11.2002 CHAPTER 3: PHONE DOES NOT SWITCH ON Flowchart 3-1 Phone does not switch on Check if current Continue with section consumption is higher than "LOW STANDBY/OPERATION MODE TIME"...
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CONFIDENTIAL 18 (44) NHM—2/5/6 Repairhints Customer Care Europe, Middle East & Africa 3410 Version 4.0 Approved SCCE Training Group Date 20.11.2002 Phone does not switch on The first thing you should do in this case is to check the current consumption of the phone: Off-state current normally varies between 0.1 mA and 0.6 mA, sleep mode current varies between 0.6 mA and 4 mA while call mode current varies between 100 mA (lowest TX-power level, lights off) and 550 mA (highest TX-power level, lights on).
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CONFIDENTIAL 19 (44) NHM—2/5/6 Repairhints Customer Care Europe, Middle East & Africa 3410 Version 4.0 Approved SCCE Training Group Date 20.11.2002 In case the signal shown in figure 3-2 is not measurable, check voltages at reference oscillator G502: Check VCC 2.6 VDC at G502 pin 2 and check control voltage (AFC) at pin 1 which normally is 1.2 VDC. Note that control voltage may vary between 0.1 VDC and 2.3 VDC.
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CONFIDENTIAL 20 (44) NHM—2/5/6 Repairhints Customer Care Europe, Middle East & Africa 3410 Version 4.0 Approved SCCE Training Group Date 20.11.2002 CHAPTER 4: FLASH UPDATE NOT POSSIBLE Flowchart 4-1 Flash update not possible Prommer fault code: 1. MCU boot failure Algorithm code fail, External RAM failure 2.
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CONFIDENTIAL 21 (44) NHM—2/5/6 Repairhints Customer Care Europe, Middle East & Africa 3410 Version 4.0 Approved SCCE Training Group Date 20.11.2002 Flash update not possible Failure message “MCU boot failure, serial clock-/dataline failure” If fault-code from prommer is one of the above mentioned and phone does not stay on, disable watchdog by connecting R224 to ground and try to update again.
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CONFIDENTIAL 22 (44) NHM—2/5/6 Repairhints Customer Care Europe, Middle East & Africa 3410 Version 4.0 Approved SCCE Training Group Date 20.11.2002 CHAPTER 5: PHONE INTERMITTENT SWITCHES OFF To solve the problem which cause a intermittent switch- off, even if battery is fully charged, the value of R301 has to be changed from 2x 2.2 k? to 2x 100 ? .
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CONFIDENTIAL 23 (44) NHM—2/5/6 Repairhints Customer Care Europe, Middle East & Africa 3410 Version 4.0 Approved SCCE Training Group Date 20.11.2002 CHAPTER 6: LOW STANDBY/OPERATION MODE TIME Flowchart 6-1 Check power consumption of phone Check capacitors Lift L513 Off state 0.1-0.6 mA C563/564 C570-572 check current or change N502...
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CONFIDENTIAL 24 (44) NHM—2/5/6 Repairhints Customer Care Europe, Middle East & Africa 3410 Version 4.0 Approved SCCE Training Group Date 20.11.2002 Low standby/operation mode time First of all check current consumption in different operation modes: Function mode Minimum current in mA Maximum current in mA Off state Sleep mode...
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CONFIDENTIAL 25 (44) NHM—2/5/6 Repairhints Customer Care Europe, Middle East & Africa 3410 Version 4.0 Approved SCCE Training Group Date 20.11.2002 CHAPTER 7:NOT CHARGING Flowchart 7-1 Nothing happens if charger is connected Check Check/change X200, voltage level at R210, F200, V201, L202 0.8 V if charger is and C215-217 connected...
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CONFIDENTIAL 26 (44) NHM—2/5/6 Repairhints Customer Care Europe, Middle East & Africa 3410 Version 4.0 Approved SCCE Training Group Date 20.11.2002 Not charging In case of any fault in the charging circuit: First thing you should do is running the energy management calibration to define the fault! You also should check whether the fault occurs only intermittendly or if it is permanently impossible to charge the battery.
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CONFIDENTIAL 27 (44) NHM—2/5/6 Repairhints Customer Care Europe, Middle East & Africa 3410 Version 4.0 Approved SCCE Training Group Date 20.11.2002 CHAPTER 8: CONTACT SERVICE This failure is easy to detect, because it appears on LCD as text and no more application are possible. Anyway the phone software is running and thus the watchdog of CCONT N201can be served.
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CONFIDENTIAL 29 (44) NHM—2/5/6 Repairhints Customer Care Europe, Middle East & Africa 3410 Version 4.0 Approved SCCE Training Group Date 20.11.2002 SIMCARD FAULTS Display message “Insert SIMcard” The easiest way to find out the reason for this fault is to check if every single SIMline is pulsed to the signal shown below after initializing the phone: Figure 9-1 You can check this signal easily at the SIMreader`s pogo-pins of the service-jig.
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CONFIDENTIAL 30 (44) NHM—2/5/6 Repairhints Customer Care Europe, Middle East & Africa 3410 Version 4.0 Approved SCCE Training Group Date 20.11.2002 CHAPTER 10: INTERNAL AUDIO FAULTS In case of any internal audio-fault in your phone, the easiest way to define the fault is to establish a call to the defect phone with another proper working one.
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CONFIDENTIAL 31 (44) NHM—2/5/6 Repairhints Customer Care Europe, Middle East & Africa 3410 Version 4.0 Approved SCCE Training Group Date 20.11.2002 CHAPTER 11: USER INTERFACE FAULTY Display failure Check mechanical appearance of display assy, especially the connector cavity. If they are bent, it causes a blank Display /missing segments. Change part if necessary (See figure 10.1). If LCD does not work after changing display assy, check VBB 2.8 VDC at C409/413.
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CONFIDENTIAL 32 (44) NHM—2/5/6 Repairhints Customer Care Europe, Middle East & Africa 3410 Version 4.0 Approved SCCE Training Group Date 20.11.2002 Vibra failure Check contact springs of vibramotor, make sure that pads for vibramotor on PCB are clean. Check VB 3.6 VDC at vibra pad located to the edge of the PCB, at the other pad and pin 16 of N400. You can check vibra signal with a scope (WinTesla: Testing/Vibra).
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CONFIDENTIAL 33 (44) NHM—2/5/6 Repairhints Customer Care Europe, Middle East & Africa 3410 Version 4.0 Approved SCCE Training Group Date 20.11.2002 CHAPTER 12: NO SERVICE The first you should do if this fault occurs is to calibrate RX/TX-values of the phone. If only TX-power is too low or not measurable continue with the chapter below.
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CONFIDENTIAL 34 (44) NHM—2/5/6 Repairhints Customer Care Europe, Middle East & Africa 3410 Version 4.0 Approved SCCE Training Group Date 20.11.2002 No or too low TX power GSM 900 Use WinTesla to set phone into following mode: Initialize/ Local mode/Testing/ RF Controls/ active unit TX, Ch.38. First of all check 26 MHz reference oscillator at C546: Figure 12-1 Amplitude of spectrum is approximately –10 dBm.
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CONFIDENTIAL 35 (44) NHM—2/5/6 Repairhints Customer Care Europe, Middle East & Africa 3410 Version 4.0 Approved SCCE Training Group Date 20.11.2002 If TXIQ-signals at R541/548 are ok, check 897.6 MHz TX-spectrum at both sides of L514: Figure 12-4 Amplitude of TX-spectrum at L514 is around 0 dBm. If this spectrum is not measurable, you have to check all signals, which HAGAR N500 needs to work: VTCXO 2.8 VDC at C506/518, VCHP 4.7 VDC at C505,...
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CONFIDENTIAL 36 (44) NHM—2/5/6 Repairhints Customer Care Europe, Middle East & Africa 3410 Version 4.0 Approved SCCE Training Group Date 20.11.2002 Note that R300 is only assembled on PCB-version < UB4_11! Furthermore these signals are necessary for a proper working HAGAR N500: Figure 11-8 Figure 11.9 TXC measured at C542.
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CONFIDENTIAL 37 (44) NHM—2/5/6 Repairhints Customer Care Europe, Middle East & Africa 3410 Version 4.0 Approved SCCE Training Group Date 20.11.2002 If 897.6 MHz TX-spectrum at L514 is ok, check same signal at C605. Amplitude normaly is around –3 dBm. If no spectrum is measurable or amplitude is too low, check solderings of balun T504 and filter Z503.
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CONFIDENTIAL 38 (44) NHM—2/5/6 Repairhints Customer Care Europe, Middle East & Africa 3410 Version 4.0 Approved SCCE Training Group Date 20.11.2002 Faulty spectrum Figure 12-13 Figure 12-14 1) Normal spectrum 2) Spectrum with broken solderings under CCONT. Spectrum turns to picture 1 if CCONT is pushed careful with some nonmetallic item.
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CONFIDENTIAL 39 (44) NHM—2/5/6 Repairhints Customer Care Europe, Middle East & Africa 3410 Version 4.0 Approved SCCE Training Group Date 20.11.2002 No RX calibration GSM 900 possible Flowchart 12-2 No RX-calibration possible Use WinTesla to set phone into RX-burstmode GSM 900 Ch.38 / GSM 1800 Ch.700 Set RF-generator to a high RF-level output...
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CONFIDENTIAL 40 (44) NHM—2/5/6 Repairhints Customer Care Europe, Middle East & Africa 3410 Version 4.0 Approved SCCE Training Group Date 20.11.2002 No RX-calibration GSM 900 possible Use WinTesla to set phone into local mode and activate under /Testing/RF Controls/ RX Ch.38, burst mode. Set RF-generator to RF-level output of –65 dBm.
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CONFIDENTIAL 41 (44) NHM—2/5/6 Repairhints Customer Care Europe, Middle East & Africa 3410 Version 4.0 Approved SCCE Training Group Date 20.11.2002 If 942.6 MHz RX-signal at C534 is ok, check same signal at both sides of L504: Amplitude at L504 approximately is –56 dBm. If signal is not ok, check solderings of T501 and C520/528. Also check that attenuation of Z500 is not higher than 3.5 dBm.
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CONFIDENTIAL 42 (44) NHM—2/5/6 Repairhints Customer Care Europe, Middle East & Africa 3410 Version 4.0 Approved SCCE Training Group Date 20.11.2002 If signals at R500 are ok, check 67.708 kHz on its constant DC-level of 1.2 V at R504: Figure 12-24 If signal at R504 is not measurable, check VREF_2 1.35 VDC at C535/536 and RXREF 1.2 VDC at C529.
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CONFIDENTIAL 43 (44) NHM—2/5/6 Repairhints Customer Care Europe, Middle East & Africa 3410 Version 4.0 Approved SCCE Training Group Date 20.11.2002 Poor service or no network coverage, C508 faulty In case of this fault combined with a working RX-calibration, but whose values are not ok (incorrect stepwidth as shown in figure 12-25), check signals at R500 and R504.
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CONFIDENTIAL 44 (44) NHM—2/5/6 Repairhints Customer Care Europe, Middle East & Africa 3410 Version 4.0 Approved SCCE Training Group Date 20.11.2002 CHANGE HISTORY Originator Status Version Date Comment CC-Training- Draft 14.02.2001 First draft version for the repair group Group CC-Training- Draft 02.03.2001 Remarks of Repairgroup added...