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CONFIDENTIAL

2

(25)

NPE-4 6310/NPL-1 6310i

Repairhints

Customer Care Europe & Africa

Version 1.0 Approved

SCCE Training Group

Date 15.08.2002

©

NMP 2002

Checked

by:

SCCE Training Group

Approved by:
SCCE

General

-How to use this document

Place the schematics behind this manual.
Now you are able to follow these specifictions with graphical layouts and it is easier for you to find the components and

measuring points.

-General handling

Be very careful when disassembling the NPE-4/NPL-1 while removing the A-Cover from the Back-Cover. Refer to disassembling
instructions at the service manual of NPE-4/NPL-1.

-µBGA components and broken balls

Special attention to µBGA components:
All replaceable µBGAs must be renewed after removing. Reflow using a hot air fan is not allowed.
Check soldering points and remove oxidated solderings (broken balls) carefully by enclosing a few new solders before placing new

components. The only allowed way changing µBGA components is to use µBGA rework maschines, approved from NMP (e.g.
ZEVAC/ OK International). Use recommended Fluxtype and an appropriate amount of it only.

-PCB handling & cleaning

To avoid damages of PCB and/or components through electrostatic discharging, handle the module in
ESD-suitable cases only. Always wear ESD-bracelets, which must be connected to earth bonding point.
Do not make any loose wiring connections or do some other unqualified rework anywhere.

For cleaning use appropriate materials only. Do not use scratching or rubbing tools.
Because of organic surface protection (OSP), cleaning must only be done with a lint-free cloth, which may be moistening with DI-

water. IPA or other solvent like ethanol should only be used to clean gold pads for spring contacts without affecting the
surrounding copper layers.

-Component charactaristics

Some components contain important data.

Several described steps are practicable only if you are able to reflash/ realign the phone and/ or rewrite IMEI/ SIMlock in certain
cases. Please pay attention to separate notes.

-Realign after repair

Characteristics of replacement parts are different.

To prevent additional faults after repair (RX quality, TX power etc.) it is necessary to retune phone values.

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Summary of Contents for 6310

Page 1: ... 6310 NPL 1 6310i Repairhints Customer Care Europe Africa Version 1 0 Approved SCCE Training Group Date 15 08 2002 NMP 2002 Checked by SCCE Training Group Approved by SCCE Repairhints Service Level 3 4 6310 6310i NPE 4 NPL 1 ...

Page 2: ...approved from NMP e g ZEVAC OK International Use recommended Fluxtype and an appropriate amount of it only PCB handling cleaning To avoid damages of PCB and or components through electrostatic discharging handle the module in ESD suitable cases only Always wear ESD bracelets which must be connected to earth bonding point Do not make any loose wiring connections or do some other unqualified rework ...

Page 3: ...r SW Phoenix Phoenix Application 3 72 002 Flash SW CMT 4 31 6310 4 80 6310i Test Jig MJS 40 Docking station JBV 1 Docking Adapter MJF 9 Digital Multimeter Fluke 73 Oscilloscope Fluke PM 3380A B Spectrum Analyzer Advantest R3162 with an analogue probe RF Generator CMU 200 GSM Tester While every endeavour has been made to ensure the accuracy of this document some errors may exist If the reader finds...

Page 4: ...Flowchart 12 No service no TX 13 TX Flowchart 15 Display to dark too light 16 CHAPTER 3 Tuning problems with Phoenix SW 3 72 002 17 Tuning problem with FPS 8 17 RX Channel Select Filter calibration all measurements 0 at GSM1800 17 TX tuning problem 17 CHAPTER 4 SW faults 17 Totally dead 17 Phone jammed 17 No memory access hangs up 17 No service 17 CHAPTER 5 Hookswitch problems 18 Sometimes not pos...

Page 5: ...e PWB on a plane underground so that the bottom connector is hanging free to prevent bending of PWB and cracking of the connector s solderings See pictures below Wrong Correct When disassembling the BB shield be very careful because Flash D450 could be damaged See pictures on next page Start by lifting and bending the lid with a tweezer at the marked points 1 3 see pictures below Do not use too mu...

Page 6: ...e battery connector X101 X102 take care that you use the same one The mixed replacement causes switch off trouble Different surface width and position of spring contacts Note It is not allowed to use the battery connectors of NPE 3 part code 5469069 because of smaller size Auto power off The phone turns off because the contact pads on the battery and the battery connectors are worn out and the pho...

Page 7: ...lloscope settings Ampl 200mV Time Div 10µs Div AC DC GND AC If there is no signal check B200 circuit for shorts or disconnection and change faulty components Check PWRONX at S300 pin 2 4 Key not pressed 3 6 VDC Depends on Workbench supply voltage Key pressed 0 VDC If not ok check PWRONX line from S300 to UPP D400 for shorts or disconnections Check SleepClk 32 768 kHz Vpp 1 8 V square wave at J404 ...

Page 8: ...C280 1 8VDC If not ok UEM D200 is faulty Change PWB as UEM is not changeable If both voltages are ok try to flash the phone with repair jig MJS 40 and measure the VFLASH2 again Now the voltage at C280 rises up to 2 8VDC If the voltage does not rise up to 2 8VDC change PWB as the UEM D200 is not changeable If all voltages are ok check the Flash for mechanical damage see also picture at chapter Addi...

Page 9: ... not ok check UEM D200 Check AFC around 1 3 VDC at G740 Check also if VR3 VCC 2 8 VDC is ok with an Oscilloscope If not ok check UEM D200 If both voltages are ok but the frequency drift is higher than 100Hz and the fault is getting stronger when pressing the top of the 26MHz oscillator G740 change the faulty component No service Set phone to local mode with Phoenix Open menu Maintenance Tuning RX ...

Page 10: ...calibration Check RX calibration in GSM PCN Check TX power at menu Maintenance Tuning TX power Refer to chapter No Service No RX Refer to chapter No Service No TX If the fault persists rewrite IMEI SIMLock settings are not ok Check CMU CMD if any errors appear on display e g frequency errors Refer to chapter Drop calls Insert a Test Sim set phone to normal mode and make a Test call Connection esta...

Page 11: ...ode DtoS Biquad Oscilloscope settings Ampl 500mV Time Div 200µs Div AC DC GND DC If the signal is not ok check in GSM the RX signal 942 4 MHz at channel 37 RF level 55 dBm at L626 If the signal is not ok check in PCN the RX signal 1842 4 MHz at channel 700 RF level 55 dBm at L616 If both RX signals not ok check RX lines from N600 Hagar to X802 antenna connector for shorts or disconnections If the ...

Page 12: ...l 942 4 MHz at L626 Check Sys CLK 26 MHz Vpp 800 mV at C752 Check following voltages VR3 2 8 VDC at C602 VR1A 4 7 VDC at C600 VR4 2 8 VDC at C601 VR5 2 8 VDC at C604 VR6 2 8 VDC at C605 VR7 2 8 VDC at R630 VREFRF01 VREFRF02 1 35 V at R726 Change N600 Hagar Check D200 UEM Check G740 26 MHz oscillator circuit Check PCN RX Signal 1842 4 MHz Ch 700 at L616 Check RX line to X102 antenna connector for s...

Page 13: ...nd power level 10 If there is no signal measurable check PCN TX signal at L662 See picture below Set spectrum analyzer to TX PCN 1747 8 MHz channel 700 Set phone to TX mode PCN 1747 8 MHz channel 700 and power level 10 If both TX signals ok check EGSM PCN TX lines between Hagar N600 and antenna connector X802 for shorts or disconnections If there is no TX signal measurable at L662 check TX I Q at ...

Page 14: ...ngs Ampl 500mV Time Div 1ms Div AC DC GND AC If the TXP signal is not ok check UPP D400 Check System Clk 26 MHz at C752 See picture at chapter Electrical faults Totally dead If also the Sys Clk is ok check following voltages Check VR3 2 8 VDC at C602 supply voltage for 26 MHz oscillator G740 Check VR4 2 8 VDC at C601 Check VR5 2 8 VDC at C604 Check VR6 VBB 2 8 VDC at C605 Check VR1A VCP 4 7 VDC at...

Page 15: ...8 V at C760 with oscilloscope Check TXC signal at C761 with oscilloscope Check UPP D400 Check UEM D200 Check 26 MHz at C752 Check the following voltages VR2 2 8 VDC at C294 VR3 2 8 VDC at C602 VR4 2 8 VDC at C601 VR5 2 8 VDC at C604 VR6 2 8 VDC at C605 VR7 2 8 VDC at C299 VrefRF01 VrefRF02 1 35 VDC at R726 VR1A 4 7 V at R600 Hagar N600 defect Check UEM D200 Check 26 MHz circuit especially G740 No ...

Page 16: ... When turning on the phone the display LED s V300 V303 See picture below shine in different brightness This is caused by use of different LEDs In this case change all LEDs and assemble the right ones with spare part code 4864293 Note When changing the LEDs first the RF frame has to be removed Be very careful when lifting the frame with hot air A little drift beside and some small components might ...

Page 17: ... information in RX Channel Select Filter calibration at GSM1800 All values are 0 after tuning the RX Channel Select Filter calibration under menu Tuning RX Channel Select Filter calibration The shown information is wrong Tune the phone only in GSM900 These values are the same also for GSM1800 For more information look at SB 026 TX tuning problem When starting TX tuning without connected coaxial ca...

Page 18: ...nd a call is coming in often it is not possible to release the call by pressing the hookswitch Often it is also not possible to initiate the voice call by pressing the hookswitch If one of the above mentioned problems occures the changing of R175 can solve the problem Open the BB shield and measure the resistor R175 100kΩ Ω Ω Ω If R175 100kΩ Ω Ω Ω change the resistor to 15kΩ Ω Ω Ω See pictue below...

Page 19: ... Find out which TX band is faulty If a connection is possible in GSM900 only refer to No GSM1800 1900 later on in this chapter Drop calls If in all GSM Bands a connection is possible but the bit error rate is to high and the connection is bad set phone too local mode and check TX spectrum at R805 GSM900 and See picture below Bad spectrum spectrum ok If the spectrum is not ok check following measur...

Page 20: ...rds UEM D200 are not ok UEM or PWB is faulty If one of the voltages is missing probably UEM D200 is faulty If all signals towards RF IC N601 are ok change Mjoelner N601 No TX 1800 1900 Check VAPC_DCS signal at R821 See picture below Use Phoenix and open menu Maintenance RF controls Set phone to TX 1800 Powerlevel 0 and or 15 Oscilloscope settings Ampl 50mV Time Div 2ms Div AC DC GND DC Powerlevel ...

Page 21: ...ocal Mode with Phoenix and check with HF Probe TX spectrum at R805 GSM900 and R819 GSM1800 1900 difficult to measure TX Spectrum ok Check cable connection between phone and e g CMD Wavetec Insert TestSim into phone and establish a connection at all GSM Bands with e g CMD Wavetec Make a call and find out which Band is faulty nOK OK OK nOK OK Tune TX I Q and TX power TX Spectrum ok nOK Phone ok OK C...

Page 22: ...and the other keys 0Ω Check Colum D5 keys End Down 7 8 9 resistance between the one and the other keys 0Ω If between two keys the resistance is approximate MΩ change PWB because of broken connection If all resistance 0Ω remove Z300 EMI Filter and measure the connection between keypad and red marked solderpads from EMI Filter If connection is not ok change PWB because of broken connection If connec...

Page 23: ... is ST_NO_SIGNAL 3 1 5 ST_PPM_VALIDITY_TEST This function checks the validity of PPM on flash 3 1 6 ST_SIM_CLK_LOOP_TEST This function tests the connection of SimClk and SimIODa signals between UPP and UEM This test also requires that SimIOCtrl signal can be set to high state See also st_sim_io_ctrl_loop_test If everything is ok the result is ST_OK If there is no connection the result is ST_NO_SIG...

Page 24: ...CD by checking voltage level of VLCD If voltage level is ok the result is ST_OK If voltage level is not ok the result is ST_FAIL 3 1 17 ST_IR_IF_TEST This function performs a self test on the IR device The test checks that IR energy is looped back when the module is operating normally 3 1 18 ST_UEM_CBUS_IF_TEST This function tests that the connection to UEM via CBUS is working First the value is w...

Page 25: ...CCE Training Group Approved by SCCE CHANGE HISTORY Originator Status Version Date Comment TS Training Group TS Training Group TS Training Group Draft Approved Draft 0 1 1 0 1 1 17 04 2002 27 05 2002 09 08 2002 First draft version for the repair group Approved version Draft version for the repair group TS Training Group Approved 2 0 15 08 2002 Approved version ...

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