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.

Step 3

Check to see whether 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.

Step 6

Unscrew cover of mainboard with a Cross-head screwdriver.

CHECK AND TEST 2

Step 1

Power on and perform a leakage test.
Put one detector on earthing wire of socket, and another detector on surface.

DIAGNOSIS 2


GO BACK TO COMPONENT LIST