Asus M530w Service Manual page 63

華 碩 電 腦
華 碩 電 腦
c. Antenna pad: all components on Tx path are good if power is measured
from antenna pad within 25dBm~32dBm. In this case, engineers shall go to
next debug process, general GSM Rx debug.
d. L59: Check whether GSM RF connector (CON6) is good or not. CON6
needs to be reworked if power is measured within 25dBm~ 32dBm on L59, and
no signal is measured from antenna pad. The following figure is an example of
L59 signal measurement on the spectrum analyzer.
e. C228: Check whether T/R switch (U902) is good or not. T/R switch
needs to be reworked if power is measured within 25dBm~ 32dBm on C228,
and no signal is measured on L59. The following figure is an example of C228
signal measurement on the spectrum analyzer.
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