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9. Flow Chart of Troubleshooting
9-1. Baseband
9-1-1. Power ON
'Power ON' Does not work
Check the current consumption
Current consumption
≥ 100mA ?
Check the V bat. voltage
Voltage ≥ 3.3V ?
Check the pins of U300
C315 ≥ 1.8V ?
C317 and C318 = 2.8V?
Check the clock signal
at pin #3 of TCX101
Freq.=13MHz,Vrms ≥ 300mV
Check the Initial operation
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YES
YES
YES
YES
YES
END
SAMSUNG Proprietary-Contents may change without notice
NO
NO
NO
NO
C319=1.5V?
YES
NO
9-1
Down load again
Charge the Battery
Check U300 and C315
NO
Check U300 and C319
Check the clock generation
circuit (TCX101, U104 pin#4)
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