Nokia 3520 Service Manual 6 rh21 disass

Nokia Customer Care

RH-21 Series Transceivers

Disassembly/Assembly

Issue 2 07/2004  2004 Nokia Corporation. Page 1

Company Confidential

RH-21 Company Confidential
Disassembly/Assembly Nokia Customer Care

Page 2  2004 Nokia Corporation. Issue 2 07/2004

Company Confidential RH-21

Nokia Customer Care Disassembly/Assembly

Contents

Page No

ESD Protection ............................................................................................................5

Step-by-Step Disassembly Guide................................................................................... 5

Remove B-cover ..........................................................................................................5

Remove RF Plug ..........................................................................................................6

Remove A-cover ..........................................................................................................6

Remove screws ............................................................................................................6

Remove lightguide assembly .......................................................................................7

Remove metal frame and earpiece ...............................................................................7

Remove PWB assembly ..............................................................................................8

Remove shielding lids ..................................................................................................9

Remove components from D-cover assembly .............................................................9

SALT speaker.......................................................................................................... 10

Step-by-Step Assembly Guide ..................................................................................... 11

Mount components in D-cover ..................................................................................11

Mount shielding lids on PWB ...................................................................................12

Mount PWB on D-cover ............................................................................................12

Mount earpiece and metal frame ...............................................................................12

Mount domesheet .......................................................................................................13

Mount display assembly on D-cover .........................................................................13

Mount screws .............................................................................................................14

Mount keymat and A-cover assembly .......................................................................14

Insert RF Plug ............................................................................................................15

Place battery ...............................................................................................................16

Mount B-cover assembly ...........................................................................................16

Issue 2 07/2004  2004 Nokia Corporation. Page 3

RH-21 Company Confidential
Disassembly/Assembly Nokia Customer Care

Page 4  2004 Nokia Corporation. Issue 2 07/2004

Company Confidential RH-21

Nokia Customer Care Disassembly/Assembly

ESD Protection

Step-by-Step Disassembly Guide

The following diagrams may be helpful in explaining the correct sequence and technique
for disassembly of the RH-21 handsets.

Remove B-cover

1 Turn phone off

2 Remove the B-cover by pushing the button (indicated by arrow)

3 Lift the B-cover up as shown by the arrows.

Issue 2 07/2004  2004 Nokia Corporation. Page 5