LGE Internal Use Only
Copyright © 2007 LG Electronics. Inc. All right reserved.
Only for training and service purposes
3.11.4. Key Pad
There are 17 buttons and 5 side keys in Figure. Shows the Keypad circuit. ‘END’ Key is connected
On_SW to PMIC(PM6650).
3. TECHNICAL BRIEF
- 58 -
Figure. Keypad Circuit
Table. Key Matrix Mapping Table
COL(0)
COL(1)
COL(2)
COL(3)
ROW0
1
2
Up
Music
ROW(1)
3
4
Down
ROW(2)
5
6
Multi
ROW(3)
7
8
9
ROW(4)
0
#
*
Side KEY
KEY
100ohm
R22
MULTI
ONE
EVLC18S02015
VA1
UP
FOUR
EIGHT
EVLC18S02015
VA15
STAR
SHARP
SEVEN
FIVE
END
ZERO
SIX
NINE
TWO
R35
100ohm
MUSIC
DOWN
THREE
VA12
EVLC18S02015
KEY_ON_SW_N
KEY_ROW(0)
KEY_COL(3)
KEY_COL(2)
KEY_ROW(0)
KEY_ROW(1)
KEY_ROW(2)
KEY_ROW(1)
KEY_ROW(2)
KEY_ROW(0)
KEY_ROW(3)
KEY_ROW(4)
KEY_COL(0)
KEY_COL(1)
KEY_COL(2)