Nokia RM-57 Service Manual page 361

RM-57/58
System Module
UI module connector and IF connections
Pin
1 GND
2 LED+
3 Col2
4 LED-
5 Col1
6 GND
7 Row3
8 Row2
9 Row1
10 Row6
11 Row0
12 Col0
13 Row5
14 Row4
Issue 1
Figure 117 UI connector
Table 25 User interface connections
Signal I/O
<-
->
->
->
->
->
->
->
->
->
->
->
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Engine connection
GND
N2301 VLEDOUT2
Helen3 Kbc_2
R2305 + V2300 SETCURR2
Helen3 Kbc_1
GND
Helen3 Kbr_3
Helen3 Kbr_2
Helen3 Kbr_1
Helen3 Kbr_6
Helen3 Kbr_0
Helen3 Kbc_0
Helen3 Kbr_5
Helen3 Kbr_4
Nokia Customer Care
Notes
Discrete
Backlight SMPS
(controlled by
Tahvo)
Serial resistor +
Transistor
switch
(controlled by
Tahvo)
Voice switch
connection
Voice switch
connection
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