Level 3 Repair
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8-32
Check L126
≤
-65dBm ?
8-3-15. GSM1800, GSM1900 RX
Check the voltage at
{C230,C231=2.2V ?}
&
{C234,C240,C246,C249,C2
50,C253=1.3V ?}
resolder or change
U501
Check the freq. at
OSC500 : 19.2MHz ?
change or resolder
OSC500
GSM1800/1900 Receiver is O.K?
resolder or change
U204
END
NO
NO
YES
NO
YES
YES
Check
L114,L114,L116,L134
≥
-65dBm ?
NO
YES
esolder or change
F101,L114,L114,L116,L134
NORMAL CONDITION
catch the channel?
Check the Voltage at
L108 = 2.85V
CHECK soldered
RFS100,L126,L122,C105,C110
resolder or change
U501
NO
YES
NO
NO
YES
Summary of Contents for GT-I8350
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