Customer Care Europe & Africa SCCE Training Group 2002 Nokia Mobile Phones CONFIDENTIAL NHM-7 / NPM-9 1 (20) Repairhints Version 2.0 Approved Date 13.05.
Customer Care Europe & Africa SCCE Training Group 2002 Nokia Mobile Phones CONFIDENTIAL NHM-7 / NPM-9 2 (20) Repairhints Version 2.0 Approved Date 13.05.2002 GENERAL -How to use this document Put the colored schematics behind this manual. Now you are able to follow the signalpathes with graphical layout and it is easier for you to find the components and measuring points.
CONFIDENTIAL NHM-7 / NPM-9 Customer Care Europe & Africa SCCE Training Group 2002 Nokia Mobile Phones 3 (20) Repairhints Version 2.0 Approved Date 13.05.2002 INTRODUCTION IMPORTANT: 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 8310 and 6510 phones. It contains a lot of collected tips and hints to find failures and repair solutions easily.
Customer Care Europe & Africa SCCE Training Group 2002 Nokia Mobile Phones CONFIDENTIAL NHM-7 / NPM-9 4 (20) Repairhints Version 2.0 Approved Date 13.05.
CONFIDENTIAL NHM-7 / NPM-9 Customer Care Europe & Africa SCCE Training Group 2002 Nokia Mobile Phones 5 (20) Repairhints Version 2.0 Approved Date 13.05.
Customer Care Europe & Africa SCCE Training Group 2002 Nokia Mobile Phones CONFIDENTIAL NHM-7 / NPM-9 6 (20) Repairhints Version 2.0 Approved Date 13.05.2002 X101 - check mechanical appearance of battery connector. Change part if it is bent, soiled or corroded. S300 - check mechanical appearance of powerswitch, change if necessary. - check voltage at S300, 3.8VDC in case that switch is not pressed. If voltage is not measureable or too low especially check R301 and C312.
Customer Care Europe & Africa SCCE Training Group 2002 Nokia Mobile Phones CONFIDENTIAL NHM-7 / NPM-9 7 (20) Repairhints Version 2.0 Approved Date 13.05.2002 G660 - check voltage at C662, 2.8VDC - check signal of 26MHz reference oscillator at C660: With the voltage of 2.8VDC at C662 the oscillator must be able to work on a frequency around 26MHz, else you have to change G660.
Customer Care Europe & Africa SCCE Training Group 2002 Nokia Mobile Phones CONFIDENTIAL NHM-7 / NPM-9 8 (20) Repairhints Version 2.0 Approved Date 13.05.2002 CHAPTER 2 PHONE SWITCHES OFF ITSELF If this fault appears ensure that switching-off symptom is not the result of a too old phone software-version. SW-version should be 5.06 or newer! Also check that symptom is not caused by an insufficient charged battery. In case of doubt retest the phone with a new or well charged battery.
CONFIDENTIAL NHM-7 / NPM-9 Customer Care Europe & Africa SCCE Training Group 2002 Nokia Mobile Phones 9 (20) Repairhints Version 2.0 Approved Date 13.05.2002 CHAPTER 3 FLASH UPDATE NOT POSSIBLE Flash update not possible check that signals which are necessary for a working baseband (voltages, sleepclock, referenceclock, PURX) are ok nOK continue with section "Phone does not switch on" OK check that FBUS_TXO-line rise to 2.
Customer Care Europe & Africa SCCE Training Group 2002 Nokia Mobile Phones CONFIDENTIAL NHM-7 / NPM-9 10 (20) Repairhints Version 2.0 Approved Date 13.05.2002 CHAPTER 4 CONTACT SERVICE FAULTS With most of the selftests below it is possible to check the functionality of the lines between the several µBGAs, especially between UPP and UEM. If it was necessary to change UPP, remember to flash the phone, otherwise it will not switch on.
CONFIDENTIAL NHM-7 / NPM-9 Customer Care Europe & Africa SCCE Training Group 2002 Nokia Mobile Phones 11 (20) Repairhints Version 2.0 Approved Date 13.05.2002 CHAPTER 5 SIMCARD-FAULTS Display message "Insert SIM card" Check at SIM reader pin 1-4 if pulsed to 1.8V/3Vpp ok Check SIM card if dirty, check mechanical appearance of SIM reader and SIM cover, change parts if necessary ok Check / change R388, D200 or D400.
CONFIDENTIAL NHM-7 / NPM-9 Customer Care Europe & Africa SCCE Training Group 2002 Nokia Mobile Phones 12 (20) Repairhints Version 2.0 Approved Date 13.05.2002 CHAPTER 6 AUDIO-FAULTS In case of any audiofault in the phone, the best way to define the fault is to make a call with the defect phone to a proper working one.
CONFIDENTIAL NHM-7 / NPM-9 Customer Care Europe & Africa SCCE Training Group 2002 Nokia Mobile Phones 13 (20) Repairhints Version 2.0 Approved Date 13.05.
Customer Care Europe & Africa SCCE Training Group 2002 Nokia Mobile Phones CONFIDENTIAL NHM-7 / NPM-9 14 (20) Repairhints Version 2.0 Approved Date 13.05.2002 CHAPTER 8 USER INTERFACE FAULTS Display faulty - change displaymodule I004 to check if it is responsible for the fault - check mechanical appearance of displayconnector X300, change part if necessary - if fault persists check VIO 1.8VDC and VFLASH1 2.8VDC, both measurable at double capacitor C303 also check VOUT 8.
CONFIDENTIAL NHM-7 / NPM-9 Customer Care Europe & Africa SCCE Training Group 2002 Nokia Mobile Phones 15 (20) Repairhints Version 2.0 Approved Date 13.05.2002 CHAPTER 9 NO SERVICE In case that this fault occurs with your phone, the first thing you should do is to calibrate RX/TX-values of the phone. If for example TX-power is not measurable or too low, continue with the chapter below. If the receiver does not work, continue with the corresponding chapter on page 17.
Customer Care Europe & Africa SCCE Training Group 2002 Nokia Mobile Phones CONFIDENTIAL NHM-7 / NPM-9 16 (20) Repairhints Version 2.0 Approved Date 13.05.2002 G660 - set phone with Phoenix on local mode - check VR3 2.8VDC at C662. With only this voltage the oscillator must be able to work on a frequency of 26MHz, Otherwise you have to change G660. Check signal at C660: AFC-voltage at C661 normally is 1.25VDC, but may vary between 0.05VDC and 2.5VDC.
Customer Care Europe & Africa SCCE Training Group 2002 Nokia Mobile Phones CONFIDENTIAL NHM-7 / NPM-9 17 (20) Repairhints Version 2.0 Approved Date 13.05.2002 N600 - set phone with Phoenix to local mode and activate TX-burstmode Ch.37 (Ch.700 for GSM1800). - check 26MHz reference clock at C660, refer to signal shown on page 14. - check VR1A 4.75VDC at C600, VR2 2.8VDC at C723, VR3 2.8VDC at C662, VR4 2.8VDC at C601, VR5 2.8VDC at C603, VR6 2.8VDC at C605 and VR7 2.
CONFIDENTIAL NHM-7 / NPM-9 Customer Care Europe & Africa SCCE Training Group 2002 Nokia Mobile Phones 18 (20) Repairhints Version 2.0 Approved Date 13.05.2002 Receiver does not work RX does not work Use Phoenix to set phone into RX-burstmode GSM900 Ch.37 / GSM 1800 Ch.700 Set RF-generator to a high RF-level output GSM1800 Check C550 or change Z500/520 nOK Check 1842.8MHz at C551 OK Check/change V550/N600 Check/change C555/556, Z551 Check RXIQ-signals at C608/611 nOK nOK nOK Check 1842.
Customer Care Europe & Africa SCCE Training Group 2002 Nokia Mobile Phones CONFIDENTIAL NHM-7 / NPM-9 19 (20) Repairhints Version 2.0 Approved Date 13.05.2002 G660 - first thing to do as in case of TX-faults is to set phone with Phoenix to local mode, activate RX-burstmode Ch.37 - check VR3 2.8VDC at C662. With only this voltage the oscillator must be able to work on a frequency of 26MHz. Otherwise you have to change G660. Signal of G660 at C660 is shown on page 14. AFC-voltage at C661 normally is 1.
CONFIDENTIAL NHM-7 / NPM-9 Customer Care Europe & Africa SCCE Training Group 2002 Nokia Mobile Phones 20 (20) Repairhints Version 2.0 Approved Date 13.05.2002 CHANGE HISTORY Originator Status Draft Version 0.1 Date 11.02.2002 Comment First draft version for the repair group TS Training Group Approved 1.0 28.02.2002 First approved release TS Training Group Draft 1.5 29.04.2002 Contact service part added TS Training Group Approved 2.0 13.05.
