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LGE Internal Use Only
Copyright © 2007 LG Electronics. Inc. All right reserved.
Only for training and service purposes
3. TECHNICAL BRIEF
- 45 -
3.14.4 Key Pad
There are 24 buttons and 5 side keys in Figure. Shows the Keypad circuit. ‘END’ Key is connected
On_SW to PMIC(PM6650).
Figure. Keypad Circuit
HOT4
4
KEY
7
8
3
HOT5
HOT3
1
2
5
0
6
9
OK
608
HOT602
603
UP
MENU
SEARCH
604
CLR
LEFT
2
4
6
8
1
3
5
7
RA600
100K
R602
100K
RIGHT
SND
HOT600
601
607
600
606
HOT601
BACK
DN
609
605
602
KEY_ROW(1)
KEY_ROW(2)
KEY_ROW(3)
KEY_ROW(4)
VREG_MSMP_2.6V
KEY_ROW(0)
KEY_COL(2)
KEY_COL(4)
KEY_COL(3)
KEY_COL(1)
KEY_COL(0)
COL0
COL1
COL2
COL3
COL4
COL5
ROW0
Multi
CLR
MENU
Side
(up)
ROW1
1
2
3
LEFT
UP
Side
(down)
ROW2
4
5
6
OK
Right
Side
PTT
ROW3
7
8
9
SEND
SEARCH
CAM
ROW4
*
0
#
Down
BACK
SPK
Summary of Contents for CU405
Page 1: ...Date May 2007 Issue 1 0 Service Manual Model CU405 Service Manual CU405 Internal Use Only ...
Page 175: ...Note ...
Page 176: ...Note ...