Daewoo LM32L2 Series User Manual

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5. Hardware Trouble shooting
5-1) Power Supply Trouble
Check E1 for 5V and E2 for 3.3V output ?
Y
N
Check power line or power supply
Put on the TV, Check for C10 ,C16,E5 E3 for 5V
output
Y
N
Check power board
for 5V output
Check if U2 for 3.3V and
U3 for 2.5V output?
Y
N
for
5V
output
Check the circuit
Check U4 for 1.2V
YN
Y
N
of U2 ,U3
Check if the power
on pin of power
board for 5V?
OK
Check
U4
for
1.2V
output
YN
U4/DC-DC IC damaged
L2/10μH is damaged or
false welding
It ’s normal but
the voltage is
high
It’s normal but
the voltage is
Low
E6 i d d th
Check if pin No.4 for U4/(DC-DC chip) is
false welding or U4 is damaged
E6
i
s
d
amage
d
or
th
e
loader is in short
circuit

Daewoo LM32L2 Series Specifications

General

Brand	Daewoo
Model	LM32L2 Series
Category	LCD TV
Language	English