Blu LIFE 8, Руководство по обслуживанию

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Step 2: If the signal of PA is right then measure if the signal output from PA is right. If the
signal is wrong then check the PA and parts around of it, if no clear issue found then
rework or change the PA IC.
Step 3: If the signal out from PA is right then measure the if the input and output signal of
transceiver are right, If the input signal of transceiver is wrong, please check the related RF
circuit between transceiver and PA. If the input signal of transceiver is right but the output
signal is wrong, please check the solder process of transceiver, and check if it’s working
voltage is right.
Step 4: If the signal are right then check the solder process of CPU IC, we’ll change it if no
clear issue found.