CONFIDENTIAL
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Customer Care Europe, Middle East & Africa NAM-2 Repair Hints
Technical Services / SCCE Training Group Version 2.0 Approved
© 2004 Nokia Corporation
03/03/2004
© NMP 2004
Checked by:
SCCE
Approved by:
SCCE Training Group
-PWB handling & cleaning
To avoid damages of PWB and/or components through electrostatic discharging, handle the module in
ESD protected area. When handling PCBs outside an ESD-bag always wear ESD-bracelets, which must be
connected to earth bonding point. 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.
-Screw torques
To disassemble the phone, use a Torx T6 Plus screwdriver. Unscrew the 6 screws in the order shown in the
picture below. To assemble the phone, use the reverse order and torque of 17Ncm.
-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.
Disassembling (1-6) and assembling (6-1) order
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