User Guide

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• Cover keyboard (S60 keyboard)

• PDA keyboard

Cover keyboard

Cover keyboard domes are assembled on 1NP UI-FLEX. Keyboard matrix consists also SEND, END and two SW

keys that are located on both sides of PDA display.

1NP UI-FLEX is assembled to the chassis part of phone. If there’s failure on these parts, whole chassis assy

has to be replaced.

Table 9 Cover keyboard matrix

Col 0 Col 1 Col 2 Col 3

Row 0 UP RIGHT LEFT SK

Row 1 SELECT CLEAR DOWN SEND

Row 2 END 3 2 APPS

Row 3 6 9 8 LEFT

Row 4 # RIGHT SK 5 1

Row 5 * 0 7 4

Row 6 CBA1

(Send)

CBA2

(End)

CBA3 (SW

key)

CBA4 (SW

key)

• Col 0-3 and Row 0-6 are filtered with ASIP Z4502.

• Power key is also placed on the UI FPC module 1NP. It connected directly to EM ASIC N2200 PWRONX PIN

PDA keyboard

PDA keyboard pads are placed directly on the system/RF module. System/RF module includes also side keys

(volume keys and 2-position camera key).

Display and keyboard backlights

The device uses SMPS LED driver to drive cover display, PDA display and cover keyboard LED’s.

• In cover display, there is four white LED´s connected in series (LED´s are located in display module)

• In PDA display, there is 3 + 3 white LED´s connected in series (LED´s are located in display module)

• Current mirror is controlling that equal current is flown in both branches

• In cover keyboard, there is 3+3 leds connected in series (LED´s are located in UI-FPC 1NP)

Display LED brightness can be controlled with PWM signal (0-100%, ~293Hz). Cover keyboard LEDs can be

turned OFF separately.

In PDA keyboard there is EL (electroluminescent) lamp used. Needed EL driver (N4400) and related

components are located on system/ RF module.

RA-6

System Module

Issue 1 COMPANY CONFIDENTIAL Page 6 –21