CONFIDENTIAL 3 (16)
NHM-4/NHM-4NX 8910/8910i Repairhints
Customer Care Europe, Middle East & Africa Version 2.0 Approved
SCCE Training Group Date 03.06.2003
© NMP 2003
Checked by:
SCCE Training Group
Approved by:
SCCE
-PCB handling & cleaning
To avoid damages of PWB and/ or components through electrostatic discharging, handle the module in
ESD-suitable cases only. When handling PWBs outside an ESD-bag always wear ESD-wristbands, 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 only use 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.
-Screwing, torque
To assemble the phone, use a Torx T6 Plus screwdriver 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 adjusting the phone.
-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 by 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 identic to the observed symptom, always use the self-observed symptom
code.
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