Samsung RF267AEXAA, RF267AEBP Troubleshooting, If Pantry Panel PCB is not working normally, Start

TROUBLESHOOTING

4-2-10. 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 fresh food

compartment door switch

operate normally?

Is the connector of

pantry room in fresh food

compartment inserted

correctly?

Is MAIN PCB

Connector (CN51), CN79

inserted correctly?

Is signal of

MAIN PCB CN51, CN79

Check and repair the switch

* Refer to<how to repair door switch>

Reinsert Connector,

Repair bad contact

Reinsert connector in MAIN PCB

If Panel Key is not selected

normal?

Check voltage/Replace MAIN PCB

Typical PCB Ground REG1 Heater Sink

Is the lighting

operated when replace Pantry

Panel-PCB?

Panel PCB itself has trouble.

Check the wires of Pantry Room - disconnection, short between wires Recheck the control circuit of MAIN PCB Pantry Panel

Check the wire assembling between Panel and MAIN

If Panel PCB Key is not selected

If it is not repaired with the above basic checking method

Checking method of voltage Based on

PCB typical Ground REG1 Heater Sink 1) Key voltage ; CN51#6"(Purple)

1)select(operating)(0V) 2)normal(about5.0V 0.5V)

2) LED part voltage ; CN51-"1"(Yellow),

"2"(Pink),"3"(Orange) Voltage of CN51 is same as IC50 #14,#13,#12 voltage.

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?

Reassemble PCB ASS'Y / Enforce the cancelation of pressed keys

Reassemble PCB ASS'Y / Enforce the cancelation of pressed keys

- Display On (0.7V 0.5V) - Display Off (11V 1V)

Convertible compartment Panel PCB itself has trouble.

Isanormalvoltage

outputtedfromMAINPCBIC51,CN79

duringthekeyoperating?

Check the wire of Pantry Room - disconnection, short between wires

Check the short/open of the pantry panel lighting circuit in MAIN PCB.

Replace MAIN PCB Check the short of MAIN Panel wire

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