Nokia 8390 Manuales De Servicio
PAMS Technical Documentation
System Module & UI
NSB-8
Issue 1 01/02
ãNokia Corporation
Page 15
External Signals and Connections
UI (board-to-board) connector
LCD connector
Table 9: UI (board-to-board) connector
Pin
Signal
Min.
Nom
Max
Condition
Note
1
SLOWAD(2)
1.5V
0.1V
2.7V
1.0V
Flip closed
Flip open
Not used in NSB-8
2
VBAT
3.0V
3.6V
4.2V
Battery voltage for LEDs
3
ROW(4)
0.7xVIO
0
1.8V
0.3xVIO
High
Low
Keyboard matrix row 4
4
ROW(3)
0.7xVIO
0
VIO
0.3xVIO
High
Low
Keyboard matrix row 3
5
COL(2)
0.7xVIO
0
VIO
0.3xVIO
High
Low
Keyboard matrix column 2
6
ROW(2)
0.7xVIO
0
VIO
0.3xVIO
High
Low
Keyboard matrix row 2
7
COL(1)
0.7xVIO
0
VIO
0.3xVIO
High
Low
Keyboard matrix column 1
8
ROW(0)
0.7xVIO
0
VIO
0.3xVIO
High
Low
Keyboard matrix row 0
9
KLIGHT
VBAT
0.3xVBAT
LED off
LED on
LED control
10
ROW(1)
0.7xVIO
0
VIO
0.3xVIO
High
Low
Keyboard matrix row 1
11
COL(3)
0.7xVIO
0
VIO
0.3xVIO
High
Low
Keyboard matrix column 3
12
COL(4)
0.7xVIO
0
VIO
0.3xVIO
High
Low
Keyboard matrix column 4
13
GND
0V
14
GND
0V
15
GND
0V
16
GND
0V
Table 10: LCD connector
Pin
Signal
Min.
Nom
Max
Condition
Note
1
XRES
0.8*VIO
0
VIO
0.22*VIO
Logic '1'
Logic '0'
Logic '0'
Reset
Active low
100ns
trw
Reset active