
SAMSUNG Proprietary-Contents may change without notice
6. SGH-V205 Flow Chart of Troubleshooting and Circuit Diagrams
6-
1
1. Power On
Current cons umption >=100mA
' Power On ' does not work
Voltage >= 3.3V
Download again
Charge the Battery
pin#15 >=
2.8V
Check U100 and C113
pin#46 and pin#39 = 2.8V
Check U100 and C112
Freq = 13MHz ,
Vrms ≥ 300mV and
Vpp
ㆃ
900mVpp
Check the clock generation circuit
(related to U703 and U704)
END
No
Yes
Yes
Yes
Yes
Yes
No
No
No
No
pin#13 = 1.8V
No
Yes
Check the V bat. Voltage
Check the pin of U100
Check the clock signal at pin#4 of U704
Check the initial operation
Check the current cons umption