Dome Sheet Placement; Cleaning; Placing The Dome Sheet To The Light Guide - Nokia RM-94 Disassembly/Reassembly Instructions

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Dome Sheet Placement

Since the dome sheet has to be removed before every soldering process a new dome sheet

needs to be placed between the PWM and light guide.

Note: In some regions the light guide assembly (which includes the light guide, the metal frame

and the domesheet) will be replaced as one part (this is the preferred procedure). The descrip-

tion below is needed, when the domesheet needs to be replaced separately, which is not the

preferred procedure.

The PWB needs to be cleaned and all remaining material from the old dome sheet needs to be

removed. In some regions there is the possibility to exchange the dome sheet separately (not

together with the light guide assembly), then the light guide needs to be cleaned as well.

The dome sheet is delivered on transparency foil. First step is to remove the dome sheet from

the foil, where you need to ensure that the complete dome sheet is lifted and the protecting foil

on the other side of the dome sheet still sticks on the dome sheet. Please see picture below:

COMPANY CONFIDENTIAL

5 - Disassembly/Reassembly Instructions

RM-94

Protecting foil will

stick on dome sheet

All dome sheet parts

are lifted.

(Nothing sticks on

the bottom foil.)

Issue 1 04/2005

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