LG KF700Q Service Manual page 55

3. TECHNICAL BRIEF
3.10.4 Key Pad
There are 18 key buttons. Shows the Key Matrix & Keypad circuit. 'END' Key is connected to
PMIC(PM6658).
COL(0)
ROW0
ROW(1)
ROW(2)
ROW(3)
VREG_MSMP_2.7V
C502
0.1u
KEY_ROW(0)
KEY_ROW(1)
KEY_ROW(2)
KEY_ROW(3)
KEY_COL(0)
KEY_COL(1)
KEY_COL(2)
KEY_COL(3)
LGE Internal Use Only
COL(1)
1 2
4 5
7 8
* 0
[Table 3.9] Key Matrix Mapping Table
PM_ON_SW_N
501 502 503
1 2 3
504 505 506
4 5 6
507 508 509
7 8 9
HOT501 510 HOT502
HOT4 0 HOT3
KEY MAP
[Fig. 3.19] Main Keypad Circuit
- 56 -
COL(2) COL(3)
3 SEND
6 CLR
9
#
END
SIDE KEY
PRSB6.8C
CN501
1
SND
2
3
4
5
CLR
CN502
1
2
3
Copyright © 2008 LG Electronics. Inc. All right reserved.
Only for training and service purposes
COL(4)
OK
LOCK
CAMERA
FOCUS
CAMERA Double & LOCK KEY
KEY_ROW(1)
KEY_ROW(2)
KEY_ROW(3)
KEY_COL(4)
OK
KEY_ROW(0)
KEY_COL(4)