3.9.4 Key Pad
There are 18 key buttons. Shows the Key Matrix & Keypad circuit. ‘END’ Key is connected to
PMIC(PM6635).
LGE Internal Use Only
Copyright © 2008 LG Electronics. Inc. All right reserved.
Only for training and service purposes
- 45 -
[Table 3.8] Key Matrix Mapping Table
COL(0)
COL(1)
COL(2)
COL(3)
COL(4)
ROW0
1
2
3
SEND
ROW(1)
4
5
6
CLR
0
ROW(2)
7
8
9
COM
CAMERA
ROW(3)
*
0
#
FOCUS
CAMERA
0
9
HOT3
2
7
8
HOT4
KEY MAP
1
FOCUS
3
4
5
6
VA107
PRSB6.8C
CAMERA
VA102
PRSB6.8C
VA103
100
PRSB6.8C
R108
R107
100ohm
R106
100ohm
100ohm
100K
2
4
6
8
1
3
5
7
HOT100
VREG_MSMP_2.7V
RA100
108
102
101
VA100
PRSB6.8C
106
VA110
PRSB6.8C
103
104
VA105
SND
PRSB6.8C
109
VA109
PRSB6.8C
COM
END
105
107
100ohm
CLR
R105
VA104
PRSB6.8C
PRSB6.8C
VA106
HOT101
PRSB6.8C
VA108
0.1u
KEY_ROW(2)
KEY_ROW(1)
KEY_ROW(3)
C100
PM_ON_SW_N
KEY_COL(4)
KEY_COL(3)
KEY_COL(2)
KEY_COL(1)
KEY_COL(0)
KEY_ROW(0)
[Fig. 3.17] Main Keypad Circuit
SIDE KEY
OK
EVL14K02200
VA100
VREG_MSMP_2.7V
VA101
R101
100K
EVL14K02200
KEY_COL(4)
KEY_ROW(0)
Z3X-BOX.COM
Содержание KF690
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