Lenovo i909 Manual de manutenção - Página 19
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I908 Mobile Phone Maintenance Manual
3.6 The Phone cannot be Powered on
The
Firstly check U1402 for pseudo
soldering. Is
the
VTCXO, VCORE, VMEM and
Y
Is U2107 normal at
26MHz?
Y
Are
there
problems at U1101?
N
output
of
N
Check for pseudo
N
soldering
LENOVO
Re-solder
U1402
ld i
t U2106
Y
Touch
up
and
tr
Re-solder
U1101
Page 19
N
Check
the
circuit
U2106