Samsung SCH-A310 Service Manual page 87

12. PCB Diagram
12-1 Main PCB Top Diagram
LED210
LED211
U290
R155
UP
R228
R233
R234
R121
R118
R114
R113
R161 R112
R111
C114 R115
R108
R116
R105
R104 C216
R103
RWR
R420
R427
I CLK
DOWN
TALK
D250
R240
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D215
D216
3 6 9
R426
2 5 8
1 4 7
U499
D217
D213
12-1
SHARP
R246
R247
C241
R245
U503
R156 R159
C169
R149
C221
0
MIC200
R153
C171
C279
R220
C177 C174
R217 R219
U251
R216 C220
R212
C210
R214
STAR