Asus P552W Manual page 54

華 碩 電 腦
華 碩 電 腦
GTC ■ Service Manual
● C1806
Check whether FEM (U1804) operates normally or not. U1804
needs to be replaced if improper RF power, no power or lower power
than that on the golden sample, is measured on C1806. C1806 is the
test point for GSM900 band, DCS1800 and PCS1900 band. The
following figures, which sequentially indicate measurement result of
GSM900, DCS1800 and PCS1900 on C1806, are examples of RF
signal measurement on the spectrum analyzer.
<GSM900>
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