LG WD-1020W - Page 20

8-2.Fault diagnosis and Trouble shooting
1.
Be
careful
of
electric
shock
or
disconnecting
the
parts
while
trouble
shooting.
NEUEN
2.
First
of
all,
check
the
connection
of
each
part
terminal
with
wiring
diagram.
3.
Voltage
of
each
terminal
is
AC
220-240V
while
applying
an
electric
current
(except secondary part of the transformer and sensor pressure)
When measuring the voltage of the outlet,
is the voltage AC 220-240V?
YES
When measuring the voltage of blue
connector of the PWB assy (Power)
is the voltage AC 220-240V?
| When the red connector pull out from the
$reg
Is © connector disconnected or
disassembled?
3 yy =
Is wire of the PWB assy(Display)
disconnected?
Replace PWB assy(Display)
(6871FC2272A)
PWB assy(Main) Is the voltage AC 12V or more? WO»
=>
>
20
Check the fuse?
Replace PWB assy
(Power)
Replace transformer
(Controlier)
(6170FR2027E)
cc
Reconnect and repair
connector.
[Se
Replace PWB assy(Main)