3. TECHNICAL BRIEF
- 55 -
3.9 Keypad Switches and Scanning
CLR
1
9
CAMERA
LEFT
RIGHT
VOL_DOWN
SEL
#
2
0
8
5
4
OK
7
DOWN
SEND
3
SCHEDULE
6
END
VOL_UP
MENU
FAV
*
UP
R320
100
100
R321
SW319
SW312
R318
100
100
R317
SW307
EVLC18S02015
VA300
SW323
SW300
SW308
SW305
R335
680
EVLC18S02015
VA303
R351
680
VA302
EVLC18S02015
EVLC18S02015
VA301
VA308
EVLC18S02015
SW320
SW322
680
R350
R337
680
SW304
SW316
680
R336
SW311
SW318
SW303
SW310
680
R314
SW301
SW321
SW313
SW315
CN300
1
2
3
SW306
SW302
VBAT
VA304
EVLC18S02015
SW314
EVLC18S02015
VA309
CN301
1
2
3
4
SW317
100
R319
10K
R313
SW309
KEY_ROW5
KEY_COL0
KEY_COL3
KEY_COL2
KEY_COL1
KEY_ROW0
KEY_COL4
KEY_ROW1
KEY_ROW2
KEY_ROW3
KEY_ROW4
POWERKEY
Figure 3-27. Keypad Switches and Scanning
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Summary of Contents for MG300d
Page 23: ...3 TECHNICAL BRIEF 24 Figure 3 1 SKY74400 FUNCTIONAL BLOCK DIAGRAM Z 3 X B O X C O M ...
Page 83: ...4 TROUBLE SHOOTING 84 4 6 LCD Trouble EMI FILTER CN600 Test Points Z 3 X B O X C O M ...
Page 110: ...5 DOWNLOAD AND CALIBRATION 111 8 Push the START button Z 3 X B O X C O M ...
Page 111: ...5 DOWNLOAD AND CALIBRATION 112 9 Phone test Finish is shown in below screen Z 3 X B O X C O M ...
Page 112: ...6 BLOCK DIAGRAM 113 6 BLOCK DIAGRAM Z 3 X B O X C O M ...
Page 113: ... 114 Z 3 X B O X C O M ...
Page 124: ... 125 MG300d 8 PCB LAYOUT Z 3 X B O X C O M ...
Page 125: ... 126 MG300d 8 PCB LAYOUT Z 3 X B O X C O M ...
Page 137: ... 138 Z 3 X B O X C O M ...
Page 138: ... 139 Z 3 X B O X C O M ...
Page 140: ... 141 12 EXPLODED VIEW REPLACEMENT PART LIST Z 3 X B O X C O M ...
Page 141: ... 142 Z 3 X B O X C O M ...