CHECK AND TEST 1



Step 1

Unscrew cover of mainboard with a Cross-head screwdriver. 


Step 2

Check if the earthing wire is connected well.
If not, reconnect it well.

Step 3

Check if wires in mainboard area are
broken or not.

DIAGNOSIS 1


PROCEDURE 1


Step 1

Cut off the wire. 


Step 2

Peel off the sleeves.


Step 3

Make sure wires are in proper order and
connect them.


Step 4

Tin soldering.

Step 5

Cover connecting point with electrical tape.

CHECK AND TEST 2

Step 1

Install the mainboard cover again.

Step 2

Perform current leakage test. 

Put one detector on earthing wire of socket, and another detector on surface.

DIAGNOSIS 2 


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