LG HB620 Service Manual

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3. TECHNICAL BRIEF
LGE Internal Use Only Copyright © 2008 LG Electronics. Inc. All right reserved.
Only for training and service purposes
3.10.4 Key Pad
There are 29 key buttons. Shows the Key Matrix & Keypad circuit. ‘END’ Key is connected to
PMIC(PM6650).
[Table 3.11] Key Matrix Mapping Table
COL(0) COL(1) COL(2) COL(3) COL(4) COL(5)
ROW 0 SEND 1 4 7 * SIDE1
ROW 1 SOET1 2 5 8 0 SIDE2
ROW 2 UP 3 6 9 # SIDE3
ROW 3 SOET2 TV Guide MYch MENU HOOK
ROW 4 LEFT OK RIGHT CLR DOWN
(MENU)
KEY MATRIX
(VT CALL)
(JAVA)
HOT505HOT504
HOT503
504
VREG_MSMP_2.7V
51KR504
HOT510
503
506505
509508
502
51KR503
R505 51K R507 51K
HOT502
sharp
HOT501 star
HOT509
501
507
R506 51K
HOT507HOT506 HOT508
510
KEY_ROW[1]
KEY_COL[1]
KEY_COL[2]
KEY_ROW[0]
KEY_COL[0]
KEY_COL[3]
KEY_COL[4]
KEY_ROW[3]
KEY_ROW[4]
KEY_ROW[2]
SIDE_VOLUME_UP_KEY
SIDE_VOLUME_DOWN_KEY
SIDE KEY
SIDE_VOLUME_CAMERA
1
2
3
4
CN503
100ohm
R906
R905
100ohm
100ohm
R904
VA710 EVLC14S02050
100ohm
R908
VA711 EVLC14S02050
CN504
1
2
3
VA713
EVLC14S02050
VA714 EVLC14S02050
VA712 EVLC14S02050
R907
100ohm
KEY_COL[5]
KEY_ROW[2]
KEY_COL[5]
KEY_ROW[1]
KEY_ROW[0]
[Fig. 3.22] Main Keypad Circuit
Z3X-BOX.COM

LG HB620 Specifications

General

Brand	LG
Model	HB620
Category	Cell Phone
Language	English