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3. TECHNICAL BRIEF
3.7 Keypad Switching & Scanning
The keypad interface is a peripheral which can be used for scanning keypads up to 8 rows (outputs
from Port Control Logic) and 8 columns (inputs to PCL). The number of rows and columns depend on
settings of the PCL.
LGE Internal Use Only
Copyright © 2008 LG Electronics. Inc. All right reserved.
Only for training and service purposes
Figure 10 Key pad part key matrix
SEL
SEND
0
DOWN
*
SIDE KEY_VOL
VOL_UP
KEYPAD
1
2
3
LEFT
4
7
8
VOL_DOWN
UP
6
FAV
#
RIGHT
CONF
MENU
CAMERA
9
CLR
5
FAV
SW102
SW105
SW100
SW106
RIGHT
SEL
SW101
SW104
UP
CAMERA
*
SW103
SW109
LEFT
DOWN
SEND
SHARP
MENU
SW108
CONF
SW107
VOL_UP
VOL_DOWN
CLR
KEY_COL1
KEY_COL2
KEY_COL3
KEY_COL5
KEY_ROW0
KEY_ROW5
KEY_ROW1
KEY_ROW2
KEY_ROW3
KEY_ROW4
KEY_COL0
END
VBAT
ON/END
END_KEY
(1%)
R217
100K
10K
R215
Q202
KTC4075E
2
3
1
VA201
ICVN0505X150FR
KEY_ROW0
KEY_COL2
END_KEY_IN
END_KEY
Содержание KF350
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