User Guide

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2. SGH-E610 Flow Chart of Troubleshooting and Circuit Diagrams
2-1
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1.Baseband
1. Power ON
Check the current
consumtion more than
100mA
Check the Vbat(battery+O)
Voltagemorethan3.3V
Downloader again
NO
Charge the Battery
NO
Check U201 and C205
NO
YES
YES
YES
YES
'Power On' does not work
Check the pin
B14 of U201 is more
than 2.8V
U201 pin C16
=1.8V
U201 pin E15
=1.8V
Checktheclocksignalat
pin3 of OSC101
Freq=13MHz
Vrms
°√
300mV
Vpp is around 900mVpp
Check the clock generation circuit
(OSC201)
NO
'Power On' does not work
YES
END
YES
Check U201 and C204
NO
Check U201 and C200
NO