6-12. When refrigerator ROOM Lamp does not light up
6. Self Diagnosis & Trouble Shooting
To do list
Start
Does the
DOOR S/W sense properly?
(Open/Close)
NO
YES
Door & MICOM State
Door
MICOM(#28)
Right and Left
Close 0V(Low)
Open 5V(High)
Is the output
voltage of IC01 MICOM #28
normal?
NO
YES
Is the output
voltage of IC76
normal?
NO
Replace/Rep air the PCB.
Repair IC76
YES
Check/Replace REED S/W,
Magnet ASS`Y
Replace/Repair the PCB
When controlling the refrigerator light with Regulator(12V) : LED LAMP
→ Applying to the F/R/Flex Zone Room compartment (Option)
* If the Vegetable Lamp does not work properly, check the R compartment LED Lamp because it is connected with
the R compartment LED Lamp in parallel. Refer to the circuit diagram to repair.
MICOM State
Door
(Right and Left)
FF FZ
#28 #29
Close 0V(Low) 0V(Low)
Open 5V(High) 5V(High)
IC76(R)/IC77(F) State
MICOM IC76(R) / IC77(F)
0V(Low) 0V(Low)
5V(High) 11~12V(High)
203
To Next Page
Loading...
Need help?
General
