FLY MC165 Maintenance Instruction page 53

Enable the BT function,
check whether C5302
has a voltage of 2.8V,
C5305 has 1.2V
Y
Check whether
C5301 has an output
frequency of 26M
Y
Change U5300, check
whether it is OK
N
Change the CPU
OK
Check whether
N
the voltage at R5301
is the high level
N
Change C5301, C2637
Change U5300
Y
N
Change CPU