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2. SGH-E610 Flow Chart of Troubleshooting and Circuit Diagrams
1.Baseband
1. Power ON
'Power On' does not work
Check the current
consumtion more than
Check the Vbat(battery+ O )
Voltage more than 3.3V
Check the pin
B14 of U201 is more
than 2.8V
U201 pin C16
U201 pin E15
Check the clock signal at
pin3 of OSC101
Freq=13MHz
Vrms °√ 300mV
Vpp is around 900mVpp
'Power On' does not work
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100mA
YES
YES
YES
= 1.8V
YES
= 1.8V
YES
YES
END
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NO
Downloader again
NO
Charge the Battery
NO
Check U201 and C205
NO
Check U201 and C204
NO
Check U201 and C200
NO
Check the clock generation circuit
2-1
(OSC201)
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