Troubleshooting; Error Mode And Action - LG PSF1032A Service Manual

6. Troubleshooting

▣ Error mode and action

* Caution: First, check whether the power cord is unplugged from the outlet and then check/repair
according to the safety precaution and procedure.
Error mode Check point
Check whether the power
cord and other internal
wiring is done correctly
Check whether the fuse is
disconnected
Does not
light up
Check error check mode:
initially
Flash error LED 1 time
Check error check mode:
Flash error LED 2 times
Check system power
consumption
Check whether DC fan of
LDM part is operating
normally
Check error check mode:
Lamp goes
Flash error LED 5 times
off trying to
turn on
Check error check mode:
Flash error LED 1 time
Check resonator condition Check if the resonator is
Check system power
Lamp is dark consumption
Check method
Check for any issue on L, N,
GND and internal wiring
Separate the noise filter box of
the power supply and visually
check whether the fuse is
disconnected
Check the input power voltage
Check whether BLDC rotates
Check BLDC cable wiring
After checking the power
consumption using the
measuring device, check
whether it is normal
Check system DC fan cable
Check whether PSM cooling
fan is operating and whether
there is any issue with wiring
Check input power voltage
crushed or have any holes
Check the system power
consumption using the
measuring device
16
Action item 1
(If not resolved by action item 1)
Check wiring based
on installation
standard and internal
wiring
Replace PSM (Power
Supply Module)
Replace bulb assembly
Connect the cable
If normal, replace the
bulb assembly
Connect the cable
Connect the cable
Replace LDM (Light
Drive Module)
Replace PSM
Action item 2
Replace generator
assembly
Replace DC fan
Replace DC fan
Replace generator
module