Repair Hints RH-30 (3200).pdf

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CONFIDENTIAL
Customer Care Europe, Middle East & Africa
Service & Support Readiness / Training Group
Copyright
2004 Nokia
Date 14.07.2004
1 (19)
Repair Hints
Version 1.0 Approved
Repair Hints
Service-Level 3 & 4
3200 / 6220
RH-30
RH-20
Checked by:
SCCE
Approved by:
Training Group
CONFIDENTIAL
Customer Care Europe, Middle East & Africa
Service & Support Readiness / Training Group
Copyright
2004 Nokia
Date 14.07.2004
2 (19)
Repair Hints
Version 1.0 Approved
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.
-Component characteristics
Some components contain important data such as tuning values or security data; therefore several steps
described are only feasible if you are able to reflash/ realign the phone and/or rewrite IMEI/SIMlock in certain
cases. Please pay attention to separate notes.
-Broken balls / underfill, µBGAs
All replaceable (not underfilled) µBGA components must be renewed after removing. Reflow with
uncontrolled hot-air fan is strictly forbidden! It is also not recommended only to reflow the old µBGA using a
µBGA rework station! µBGA must only be soldered with NMP approved µBGA rework machines (e.g. Zevac/
OK-Metcal/ Martin) to get durable solder joints.
After removing a µBGA check soldering points; if necessary rework oxidated solderings (broken balls)
carefully by tinplating these areas with few flux and a hot soldering iron. Before placing a new component
remove the tin and clean the PWB; e.g. with help of solder wick and flux cleaner such as “Kontakt LR”.
Use only recommended flux type and an appropriate amount of it – avoid drowning the PWB in flux as this
will lead to additional faults!
Also check underfilled parts for broken underfill material below. In this case carefully evaluate possible repair
actions as the phone probably was exposed to strong mechanical stress.
“rework” done with
uncontrolled hot air
PWB drowned in flux
Checked by:
SCCE
Approved by:
Training Group
CONFIDENTIAL
Customer Care Europe, Middle East & Africa
Service & Support Readiness / Training Group
Copyright
2004 Nokia
Date 14.07.2004
3 (19)
Repair Hints
Version 1.0 Approved
-PWB handling & cleaning
To avoid damages of PWB and/ or components through electrostatic discharging, handle the module in
ESD protected areas only (as shown on next page). When handling PWBs outside an ESD-bag always wear
ESD-wristbands, which must be connected to earth bonding point, and gloves to avoid corrosion and
fingerprints.
Damage by electrostatic discharge often leads to a module not failing directly but in a short period of time!
For cleaning use only appropriate materials, do not use scratching or rubbing tools. Useful tools for cleaning
are flux cleaners such as “Kontakt LR” or “Electrolube FLU” in connection with ionized compressed air.
-Shieldings, screw torques
To avoid RF-problems it is not allowed to reuse any shielding that once has been removed from shielding
frame. Always use new shieldings after successful repair!
To tighten screws only use a torque screwdriver with a torque adjusted to
21 Ncm for 3200
and
24Ncm for 6220
(see SB-020). Notice assembling: take reverse order to the one shown in the picture below!
3200
6220
Disassembling (1-6) and assembling (6-1) order
-Realign after repair
Characteristics of replacement parts may vary.
To prevent additional faults after repair (e.g. low standby time, losing network etc.) it is necessary to retune
phone values after repair; but never try to cover up a fault by justing the phone settings!
-Fault report in fault log (Phoenix)
It is very important to report all repaired failures in fault log after finishing the complete phone repair.
The report content should only contain the self-observed fault symptom, except “no fault found”.
In this case the report content should contain the symptom code that is given from the customer,
e.g “Does not switch on”(2101) and the fault code“no fault found”(470).
If the symptom code from the customer is not the same as the observed symptom, use always the self-
observed symptom code.
Checked by:
SCCE
Approved by:
Training Group
CONFIDENTIAL
Customer Care Europe, Middle East & Africa
Service & Support Readiness / Training Group
Copyright
2004 Nokia
Date 14.07.2004
4 (19)
Repair Hints
Version 1.0 Approved
ESD Protection requirements
Electrostatic discharge can easily damage the sensitive
components of electronic products. Therefore, every Service
Partner has to take care of at least some precautions, such as ESD
restricted area, floor, table, covering, chair(s), shoes or
wristbands.
For further information refer to the Partner Web Site document
“Service Supplier Requirements”
example of an electrostatic protected area (epa) set
up
source:
www.armeka.com
example of a workbench set up
source:
www.warmbier.com
example of a workbench and testers
source:
http://www.armekaengineering.com
Checked by:
SCCE
Approved by:
Training Group
CONFIDENTIAL
Customer Care Europe, Middle East & Africa
Service & Support Readiness / Training Group
Copyright
2004 Nokia
Date 14.07.2004
5 (19)
Repair Hints
Version 1.0 Approved
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 3200/6220 phones.
It contains a lot of collected tips and hints to find faults and repair solutions easily.
It also will give support to inexperienced technicians.
Saving process time and improving the repair quality is the aim of this document.
It is built up based on fault symptoms (listed in "Contents"), followed by detailed description for further
analysis.
The document is to be used additionally to the service manual and other service information such as Service
Bulletins. For that reason it does not contain any circuit or schematic diagrams.
All measurements are made using following equipment:
Nokia repair SW:
MCU SW:
Nokia module jig:
Digital multimeter:
Oscilloscope:
Spectrum Analyzer:
RF-Generator / GSM Tester:
Phoenix version A13 2004.08.5.42
4.16 for 3200; 5.15 for 6220
MJS-38
Fluke 73
Fluke PM 3380A/B
Advantest R3162 with an analog probe
Rohde & Schwarz CMU 200
While every endeavour has been made to ensure the accuracy of this document, some errors may exist. If the
reader finds any errors, NOKIA should be notified in writing, using the following procedure:
Please state:
title of the document + issue number/date of publication.
page(s) and/or figure(s) in error.
Email:
training.sace@nokia.com
Please send to:
Copyright © 2004. Nokia
This material, including documentation and any related computer programs is protected by copyright,
controlled by Nokia. All rights are reserved. Copying, including reproducing, modifying, storing, adapting or
translating any or all of this material requires the prior written consent of Nokia. This material also contains
confidential information, which may not be disclosed to others without the prior written consent of Nokia
Checked by:
SCCE
Approved by:
Training Group

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