CHECK AND TEST 1

Step 1

Unscrew cover of mainboard with  a Cross-head screwdriver. 


Step 2

Remove the mainboard cover.

Step 3

Check to see wether wires in mainboard area are broken.

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

Screws cover of mainboard with a Cross-head screwdriver. 

Step 2

Perform current leakage test. 
Put one detector on earthing wire of socket, and another detector on surface(metal part) 

DIAGNOSIS 2 


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