Nokia 6820a Service Manual 07 nsb 9 disas

CCS Technical Documentation
NSB-9 Series Transceivers
Disassembly and Assembly
Instructions
Issue 1 04/03 Nokia Corporation.
NSB-9 Company confidential
Disassembly and Assembly Instructions CCS Technical Documentation
Page No
Disassembly Instructions ............................................................................................... 3
Exchange of dome sheet ................................................................................................ 8
Page 2 Nokia Corporation. Issue 1 04/03
Company confidential NSB-9
CCS Technical Documentation Disassembly and Assembly Instructions

Disassembly Instructions

Protect LCD window to avoid dust and scratches.
Unscrew the two TORX PLUS® size 6 screws using the order shown. For assembly, the reverse order and a
torque of 17Ncm have to be used.
Press Release Button before removing Battery Cover.
Place the SRT-6 between B-Cover and A-Cover and shift it carefully as shown in the picture. Note the correct position of the SRT-6, the tip should not touch the PWB.
Now, the same procedure on the other side. Separate the modules.
Issue 1 04/03 Nokia Corporation. Page 3
NSB-9 Company confidential
Disassembly and Assembly Instructions CCS Technical Documentation
Protect LCD to avoid dust and scratches. Keymat drops out when turning A-Cover.
Open the Flip Cover.
Function Keys are attached with four snaps to A­cover. Use SRT-6 to release the snaps. Take care not to damage the spring contacts.
Separate A-Cover from Flip Cover as shown in the pic­ture. Note the right position of the Flip Hinges on reassembly.
Remove Function Keys if needed. Use always new keys in reassembly!
Page 4 Nokia Corporation. Issue 1 04/03
Company confidential NSB-9
CCS Technical Documentation Disassembly and Assembly Instructions
Unscrew the five TORX PLUS® size 6 screws using the order shown. For assembly, the reverse order and a
torque of 17Ncm have to be used.
Open the Light Guide snaps. Remove the Light Guide.
Lift the engine from B-Cover.
The LCD Metal Frame is attached with snaps to the Radio Module on both sides.
Note the right position of the LCD Module in LCD Metal Frame when assembling. Also take care not to damage the LCD spring contacts of Radio Module.
Issue 1 04/03 Nokia Corporation. Page 5
Release the snap on the other side of the engine and take away the LCD Module.
Separate the LCD Metal Frame from LCD Module and protect the LCD window again.
NSB-9 Company confidential
Disassembly and Assembly Instructions CCS Technical Documentation
Do not remove the Earpiece from the LCD Frame, as they are supplied as one part.
To remove the DC Jack, place tweezers between the spring contacts and under the Jack. You’ll need to use additional force to pull the Jack upwards.
Volume Key can be removed easily.
Use tweezers to pull up the Microphone.
Remove the Vibra Motor from its guidance. Place the SRT-6 between the spring contacts and lift
up the Antenna carefully. Do not damage the spring contacts and the Antenna Radiator when removing the Antenna.
Page 6 Nokia Corporation. Issue 1 04/03
Company confidential NSB-9
CCS Technical Documentation Disassembly and Assembly Instructions
Remove the Antenna from B-Cover. The Logo Bracket is attached with snaps to the B-
Cover. Take care not to break the snaps when releas­ing the Bracket.
After releasing of the snaps, the Logo Bracket can be removed.
Issue 1 04/03 Nokia Corporation. Page 7
NSB-9 Company confidential
Disassembly and Assembly Instructions CCS Technical Documentation

Exchange of dome sheet

Remove the defective Dome Sheet carefully. Put the new Dome Sheet onto the Dome Sheet
Assembly Jig. Note the guiding pins.
Place the Radio Module on the Jig. Press on the Radio Module evenly.
Lift the Radio Module with the new Dome Sheet from the Jig.
Check that the Dome Sheet is correctly stuck to the Radio Module. Do not damage the spring contacts of LCD.
Page 8 Nokia Corporation. Issue 1 04/03
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