Nokia 6020b Service Manual
Issue 1 03/2005
COMPANY CONFIDENTIAL
37
Copyright © 2005 Nokia. All Rights Reserved.
RM-31
7 - System Module
7 - System Module
Nokia Customer Care
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Power switch (S2419)
The power switch replacement has a direct influence to the phone usability and failure rates.
Improper placement can cause difficulties to switch the phone on / off or increase the switch’s
sensitivity when dropping the phone (peeling of the switch or its pads). For proper placement,
the line behind the switch needs to fit properly (as shown in the picture below, it must be centric
and just visible) even after soldering to get proper functionality of the switch.
Improper placement can cause difficulties to switch the phone on / off or increase the switch’s
sensitivity when dropping the phone (peeling of the switch or its pads). For proper placement,
the line behind the switch needs to fit properly (as shown in the picture below, it must be centric
and just visible) even after soldering to get proper functionality of the switch.
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Helgo RF-chip (N7500)
There are also corner marks introduced in order to help checking the placement after rework.
The placement shall be done with proper equipment. The corner marks indicate proper place-
ment after the soldering process. If the component is not placed properly the re-work process
must be repeated until the component fits properly.
The placement shall be done with proper equipment. The corner marks indicate proper place-
ment after the soldering process. If the component is not placed properly the re-work process
must be repeated until the component fits properly.