LG GX200 - Page 92

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4.13.2 Circuit Diagram
Key Board PAD Circuit
S116_2
KP_COL3
KP_COL2
S112_2
KP_COL1
KP_COL0
KP_ROW0
KP_ROW1
KP_ROW2
HSP1308
ESD_PAD_1
12
KP_ROW3
KP_ROW4
KP_ROW5
KP_COL0
HSP1309
ESD_PAD_1
12
HSP1310
ESD_PAD_1
12
S120_2
S116_2
S112_2
C1411
33.0pF
12
HSP1305
ESD_PAD_1
12
C1412
33.0pF
12
HSP1311
ESD_PAD_1
12
C1413
33.0pF
12
L1402
100nH
1 2
HSP1312
ESD_PAD_1
12
C1414
33.0pF
12
L1403
100nH
1 2
L1404
100nH
1 2
L1405
100nH
1 2
L1406
100nH
1 2
HSP1313
ESD_PAD_1
12
HSP1301
ESD_PAD_1
12
HSP1302
ESD_PAD_1
12
L1407
100nH
1 2
L1408
100nH
1 2
L1409
100nH
1 2
L1410
100nH
1 2
L1411
100nH
1 2
HSP1314
ESD_PAD_1
12
L1412
100nH
1 2
HSP1303
ESD_PAD_1
12
HSP1304
ESD_PAD_1
12
C1403
33.0pF
12
S120
1 2
HSP1306
ESD_PAD_1
12
S116
1 2
C1404
33.0pF
12
C1405
33.0pF
12
C1406
33.0pF
12
S112
1 2
C1407
33.0pF
12
C1408
33.0pF
12
L1401
100nH
1 2
POWER KEY
KP_PWRKEY
KEY PAD
S103
1 2
[OK]
S101
1 2
S105
1 2
S102
1 2
S109
1 2
S108
1 2
S110
1 2
S107
1 2
S106
1 2
S115
1 2
S114
1 2
S111
1 2
S113
1 2
S119
1 2
S122
ON/OFF
12
S121
1 2
S117
1 2
S118
1 2
KP_COL1
[DOWN]
[SOFT_R]
[UP] [SOFT_L]
1
#
[SEND]
3
2 5
4 7
6
8
*
9
0
C1409
33.0pF
12
HSP1307
ESD_PAD_1
12
C1410
33.0pF
12
HSP1315
ESD_PAD_1
12
HSP1316
ESD_PAD_1
12
HSP1317
ESD_PAD_1
12
HSP1318
ESD_PAD_1
12
S120_2
KJ101
DF40C-20DP-0.4V(51)
20
20
19
19
18
18
17
17
1
1
13
13
12
12
11
11
15
15
7
7
14
14
6
6
5
5
4
4
10
10
9
9
8
8
2
2
3
3
16
16
21
21
22
22
23
23
24
24
KP_ROW2
KP_ROW3
KP_ROW4
KP_ROW5
KP_ROW0
KP_ROW1KP_COL2
B to B connector
KP_PWRKEY
Keypad_LED
KP_COL0
KP_COL1
KP_COL3
VBAT
Main Board Key pad Circuit
Check this component of KJ101
soldering work properly
Check this around component of soldering work
properly of Key function
“
7
”
”
8
”
“
9
”
“
*
”
“
0
“
“
#
”