Samsung SGH-B300 Service Manual page 16

Flow Chart of Troubleshooting
U501
R430
C407
C313
C310
C206
C314
C308
C309
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R444
TA501
C300 R211
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R446
R427 C417
TP300
Q300
DSP_IO
INTRQ
C208
OSC200
10-4
C207
C210
C216
C217