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
Summary of Contents for VIVO 4.8
Page 1: ...Page 1 of 24 BLU VIVO 4 8 Service Manual ...
Page 20: ...Page 20 of 24 2 2 4 9 M sensor Circuit 2 2 4 10 Gyroscope Circuit ...
Page 21: ...Page 21 of 24 3 Service tools equipment list ...
Page 22: ...Page 22 of 24 ...
Page 23: ...Page 23 of 24 4 Disassembly Instruction 5 ...
Page 24: ...Page 24 of 24 ...
