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4. Circuit Description
4.2.6 KEY SWITCHES
Circuit Diagram
KCOL3
KCOL2
KCOL1
KCOL0
KROW0
KROW1
KROW2
KROW3
KROW4
KROW5
PWRKEY
LGE Internal Use Only
HSP110
S102
1
2
S106
S107
HSP109
1
2
1
2
1
S110
S111
HSP108
1
2
1
2
1
6
S114
S115
HSP107
1
2
1
2
1
S118
S119
HSP105
1
2
1
2
1
HSP106
HSP101
HSP102
S122
KEY PA D
2
1
ON/OFF
POWER KEY
S101
1
2
S105
1
2
HSP104
S108
S109
2
1
2
L104
L103
S112
S113
82nH
82nH
2
1
2
9
C106
33pF
L102
S116
S117
82nH
2
1
2
L105
82nH
8
0
C107
33pF
L101
S120
S121
82nH
2
1
2
L106
82nH
7
*
C104
33pF
HSP103
Copyright © 2007 LG Electronics. Inc. All right reserved.
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C105
33pF
C102
33pF
C101
33pF
Only for training and service purposes
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