LG VX8500 Service Manual page 64

Dual band cdma pcs/cellular/w/gps cdma mobile phone
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VX8500
4.2.1.2. Check VCTCXO Circuit
Test Point
X100. Pin3
Circuit Diagram
TCXO Waveform
LG Electronics Inc.
Checking Flow
Start
Check X100 Pin3
Refer to Graph4.2.1.2
Similar?
NO
Check X101 Pin4
+2.8V?
YES
Replace X100
72
YES
VCTCXO Circuit OK See
NO
Check U301

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