CHECK AND TEST 1

Step 1

Unscrew cover of mainboard with a Cross-head screwdriver.

Step 2

Check if terminal is inserted to final position
in PCB area.


Step 3

Check if wire order for LED is right or not in
PCB area.
Right picture shows the correct condition.

Step 4

Check if wire order is correct, or if terminal
is filled with foam.
Use tweezers to pick foam out and insert the
terminal into its position again.

DIAGNOSIS 1

GENERAL PROCEDURES
FOR RECONNECTING
INTERNAL WIRES.

Step 1

Cut wire off.

Step 2

Peel off the sleeve

Step 3

Check to ensure proper wire order and reconnect them.

Step 4

Tin soldering.                                      

Step 5

Cover connecting point with electrical tape.

CHECK AND TEST 2

Step 1

Power on the appliance,
open fridge door, check
if LED light is on or not.

Step 2

Press down the mechanical switch,
check if LED light is off or not.

DIAGNOSIS 2

PROCEDURE 1


CASE 1:

LED LIGHT WITHOUT CONTROL BOARD

 

Step 1

Prize off the cover with 2mm slotted driver.

Step 2

Unscrew with 6mm Philips screwdriver.



Step 3

Pull down the lamp box.

Step 4

Disconnect the terminal.

Step 5

Loosen the clips and take off the LED lamp.

CHECK AND TEST 3

Step 1

Provide DC12V to LED on the top to check if it is on or not.

DIAGNOSIS 3

CHECK AND TEST 4

Step 1

Set multimeter to resistance gear.

Step 2

Check wire connection from PCB area to LED
area.

DIAGNOSIS 4


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