Asus P552W Manual page 52

華 碩 電 腦
華 碩 電 腦
GTC ■ Service Manual
● C1836/C1839
Check whether PA (U1803) operates normally or not. U1803 needs
to be replaced if improper RF power, no power or lower power than
that on the golden sample, is measured on C1836 and C1839. C1836
is the test point for GSM900 band. C1839 is the test point for
DCS1800 and PCS1900 band. The following figures, which
sequentially indicate measurement result of GSM900 on C1836 and
DCS1800/PCS1900 on C1839, are examples of RF signal easurement
on the spectrum analyzer.
<GSM900>
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