- 41 -
Copyright © 2010 LG Electronics. Inc. All right reserved.
Only for training and service purposes
LGE Internal Use Only
3. TECHNICAL BRIEF
LG Electronics
42/147
LGE Property
3.8 Keypad Switching & Scanning
The keypad interface is a peripheral which can be used for scanning keypads up to 3 rows (outputs from Port
Control Logic) and 3columns (inputs to PCL). The number of rows and columns depend on settings of the PCL.
Figure 10 Key pad part key matrix
680
R405
VA403
VA402
680
R404
VA400
680
R403
VA413
CN403
4
3
2
1
680
R402
VA412
VA401
680
R401
KB402
VA420
680
R400
680
R450
KB401
KB400
R416
680
R417
680
VA414 VA416
CN404
4
3
2
1
VA415
R415
680
KP_OUT[2]
KP_OUT[2]
KP_IN[5]
KP_OUT[3]
KP_OUT[3]
KP_OUT[1]
KP_OUT[1]
KP_IN[3]
KP_IN[3]
KP_IN[6]
CLR
VOL UP & DOWN
Multi
SEND
CAM&AF
KEY PAD
Содержание GM360i
Страница 1: ...Service Manual Model GM360i Internal Use Only Service Manual GM360i Date June 2010 Issue 1 0 ...
Страница 121: ... 122 LGE Internal Use Only Copyright 2010 LG Electronics Inc All right reserved Only for training and service purposes ...
Страница 147: ... 148 LGE Internal Use Only Copyright 2010 LG Electronics Inc All right reserved Only for training and service purposes ...