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Flow Chart of Troubleshooting and Circuit Diagrams
3-8
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3-1-3. Sim Part
Check the SIM connector's
(CON300)connection to SIM card?
Resolder or change CON300
or connect again
"Insert SIM" is displayed on the LCD
END
Check the SIM Card
YES
NO
NO
YES
Check the voltage at Pin
#4 of CON300 >=2.8V
Check the UCP 300
IS there any signals Pin
#5,#6,#8
NO
Check the UCP 300
YES
YES
Содержание SGH-S720i
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