Blu DASH 3.5, Руководство по обслуживанию, Страница: 21 / 25

3.11 Camera fail
First, change a new camera module, check camera connector ok or not;
Second, check AVDD, DOVDD.
Third, use oscilloscope to test I2C, CAM_RST, CAM_MCLK, CAM_PCLK, MIPI_DATA,
and MIPI_CLK. If signals abnormal check U0401, re-hot or change a new one.
Camera fail
Is camera connector
soldering well?
Y
Check camera ok or
not?
Y
Check AVDD
DOVDD ok or
not?
Y
Check each signal
of Camera is ok or
not?
N
N
N
N
Re-solder or
change new
one
Change a new
camera
Hot U1001 or
change a new one
Hot U0401 or
change a new one