Keyboard - Nokia N72 Service Manual

RM-180
System Module
The display module does not require any tunings in service.

Keyboard

The device keyboard is connected to the main PWB with a board-to-board connector.
The keymatrix has six rows and four columns. The voice key on the main PWB and the navigation key are
connected to the same keymatrix.
Key
0
1
2
3
4
5
6
7
8
9
*
#
END
SEND
EDIT
CLEAR
APPS
Operator
NAVI Left
NAVI Right
NAVI Up
NAVI Down
NAVI Select
Left Soft Key
Right Soft Key
Camera
Voice
Issue 1
Table 17 Keymatrix
Row# kbc_#
6
3
2
2
5
3
3
2
2
4
4
4
5
1
6
6
6
5
0
0
1
1
1
0
0
4
Not Required
COMPANY CONFIDENTIAL
Copyright © 2006 Nokia. All rights reserved.
Column# kbr#
0
2
1
2
3
0
3
0
3
0
1
3
0
1
1
2
3
2
2
3
2
3
0
0
1
2
Nokia Customer Care
Switch Ref.
U21
U19
U14
U16
U23
U18
U20
U15
U17
U22
U21
S2
U13
U1
U11
U10
U12
U9
S320
U7
U6
S1
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