CHECK AND TEST 1
Step 1
Unscrew cover of mainboard with a Cross-head screwdriver.
Step 2
Take of the cover of
mainboard.
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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.
CHECK AND TEST 2
Step 1
Unscrew 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 of the appliance.
DIAGNOSIS 2
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