User Guide

Name of Connection Connector reference Material Code Notes
ALS V4400 486B033 Ambient Light Sensor
Vibra M2100 6800057
Microphone B2100 5140265
Earpiece B2101 5140251
IHF speaker B2102 5140253
UI module connector and IF connections
Figure 114 UI connector
Table 14 User interface connections
Pin Signal I/O Engine connection Notes
1 GND GND
2 LED+ <- N2301 VLEDOUT2
Discrete
Backlight SMPS
(controlled by
Tahvo)
3 Col2 -> Helen3 Kbc_2
4 LED-
->
R2305 + V2300 SETCURR2
Serial resistor +
Transistor
switch
(controlled by
Tahvo)
5 Col1
->
Helen3 Kbc_1
Voice switch
connection
6 GND GND
7 Row3 -> Helen3 Kbr_3
8 Row2 -> Helen3 Kbr_2
RM-1
Nokia Customer Care System Module
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