Blu VIVO 4.8, Руководство по обслуживанию

Страница: 9 / 24

Page 9 of 24
No receiving
Start the META software to connect the PC and the phone
，
making the phone into the
receiving state. Signal generator is also adjusted to the correspond CH. And signal lines
connected to the phone.
的同轴开关上。
Transceiver has
IQ?
Check
CPU
Y
Transceiver has
received signal?
号？
N
Transceiver SDATA
、
SCLK
、
LE
、
CXOEN
are correct ?
Y
Check
CPU
N
Whether the
voltage of the
transceiver is
normal? Whether
26MHZ is
normal?
正常？
Y
Check the
corresponding
power supply and
26MHZ resulting
circuit
N
Replace transceiver
Y
PA has
received
signal?
N
Check to see if there has
signal in the matching
circuit between PA and
ANT
N
Check to see if there
has signal in the
matching circuit
between PA and
transceiver
Y