CHECK AND TEST 1

Step 1

Check the flashing
times of LED.



Note



DIAGNOSIS 1



CHECK AND TEST 2

Step 1

Unscrew cover of mainboard with a Cross-head screwdriver. 

Step 2

Check if terminal in PCB
area is inserted to final
position.
If not, reinsert it to final
position.

Step 3

Unscrew hinge cover.

Step 4

Check if terminal in hinge
cover is inserted to final
position.
If not, reinsert it to final
position.

DIAGNOSIS 2



CHECK AND TEST 3

Step 1

Check if wire order in
PCB area and hinge
cover area are correct or
not.
Right picture shows the
correct wire order.



DIAGNOSIS 3


PROCEDURE 1


Step 1

Cut wire off.

Step 2

Peel off the sleeves.

Step 3

Check to ensure proper
wire order and connect
them.

Step 4

Tin soldering.

Step 5

Cover connection with
electrical tape.

PROCEDURE 2

Step 1

Push a 6mm sucker
onto display and turn
the knob to strengthen
suction force.

Step 2

Wrap a belt around knob
to make it easier to pull
out of display board.

Tips for installing
display.

Tip 1

After connecting
terminal, please use tape
to fasten wires to avoid
crushing with cover.

Tip 2

After putting display
into cavity, press edge
until you hear a clicking
sound, this means the
board is pushed into final
position.

Tip 3

Please press all buttons
on display board to make
sure it works well.

CHECK AND TEST 4

Step 1

Check if connection and
wire order in display area
are correct or not.

DIAGNOSIS 4

CHECK AND TEST 5

Step 1

Set multimeter to
resistance gear.

Step 2

Check wire connection
from PCB area to hinge
cover area.

Step 3

Check wire connection
from hinge cover area to
display area.

DIAGNOSIS 5

PROCEDURE 3

Step 1

Unscrew hinge cover.

Step 2

Remove the wire cover
on door.

Step 3

Take out hinge cover.

Step 4

Disconnect door switch.

Step 5

Disconnect the terminal.

Step 6

Loosen 3 bolts.

Step 7

Remove hinge.

Step 8

Remove the door.

Reverse steps above
to install the door. Pay
attention to the key
points below.

Tip 1

1) Make sure gasket is
attached well.
2) Make sure gaps
between doors are even.

DIAGNOSIS 6

PROCEDURE 4

Step 1

Unscrew cover of
mainboard with a
cross-head screwdriver.

Step 2

Disconnect terminals.

Step 3

Prize up the buckle and
disconnect the terminal.

Step 4

Unscrew the mainboard.

Step 5

Remove the mainboard.

Reverse steps above
to install a new
mainboard.

DIAGNOSIS 7