Lenovo A516 Panduan Servis - Halaman 35
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Halaman Cetak
Repair Manual of Lenovo A516 Mobile Phone
Repair manner:
Check whether RF cable and fixtures are
well connected?
Whether Rf connector CON2101，Tx module
U2101 and the surrounding circuit devices are
in cold solder joint？
TPC
N
N
Whether
WCDMA
U2202,
U2203
oppositely pasted or in cold
N
solder joint?
Whether
the
duplexer
U2201 and U2207 through
which
WCDMA
transmission channel passes
is in cold solder joint?
Y
Y
PA
Y
Re-weld
is
Y
Re-weld
35
Reconnect and
calibration
Re-weld