Check EE1 for 12V output ?
F1 damage or check
the power supply
Check EC2 for 5V output
LC1/47μH
is damaged
or false welding
Check UL1 for 3.3V, UL41 for
2.5V, UL51 for1.8V output?
Check the circuit of
Check EC32 for
Y
N
N
Y
Y
N
1
、
、
、
、
Power Supply Trouble
It’s normal but the
voltage is high
It’s normal but the
voltage is Low
UL1,UL41,UL51
Check EC32 for
1.2V output
UC32/
LC3406CB5TR damage
LC32/10μH
is damaged
or false welding
It’s normal but the
voltage is high
It’s normal but the
voltage is Low
Check if pin No.4 for
UC32/
LC3406CB5TR is
false welding or UC32
is damaged
EC32 is damaged
or the loader is in
short circuit
Y
N
voltage is high
voltage is Low
Check if pin No.4 for
UC1
is false welding or
UC1
is damaged
EC2 is damaged
or the loader is in
short circuit
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