85
Is the
connector of
pantry room
inserted correctly
Is MAIN PCB
Connector (CN51) inserted
correctly?
Is signal of MAIN
PCB CN51 normal?
Is the lighting
operated when replace Pantry
Panel-PCB?
Reinsert connector in MAIN PCB
4-2-11.
If Pantry Panel PCB is not working normally
You should check the display after door opening because the display of this model operates only
when the fresh food compartment door is opened.
Start
Does R
room
Door switch
operate normally?
Is a key pressed
continuously?
Is the PCB system
still operated by separating
of the mechanism?
Is the lighting operated
after replacing the Pantry
Panel-PCB?
Is a normal voltage
outputted from MAIN PCB IC51
during the key operating?
Check and repair the switch
* Refer to <how to repair door switch>
Reinsert Connector, Repair bad contact
Check voltage/Replace MAIN PCB
Panel PCB itself has trouble.
Reassemble PCB ASS'Y / Enforce
the cancelation of pressed keys
Reassemble PCB ASS'Y /
Enforce the cancelation of pressed
keys
Convertible compartment Panel
PCB itself has trouble.
① Replace MAIN PCB
② Check the short of MAIN
Panel wire
① Check the wires of Pantry Room - disconnection, short between wires
② Recheck the control circuit of MAIN PCB Pantry Panel
③ Check the wire assembling between Panel and MAIN
① Check the wire of Pantry Room - disconnection, short between
wires
② Check the short/open of the pantry panel lighting circuit in
MAIN PCB.
② If Panel PCB Key is not selected
※ If it is not repaired with the above basic checking method
If Panel Key is not
selected
☞
Checking method of voltage Based on PCB typical
Ground J23 JUMMPER
1) Key voltage ; CN51-"11"(Sky Blue)
a) Working: 2V
±
0.5V b) Normal: 0V
PCB Typical Ground J23 JUMMPER
The Voltage of KEY is
Working every 2msec/4min
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