8.1 RELIABILITY FAULTS:

BUTTONS ON DISPLAY DOESEN'T WORK

CHECK AND TEST 1

Step 1

If you have verified that
it is impossible to adjust
settings by using the
button on the display
board.

DIAGNOSIS 1


PROCEDURE 1



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.


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

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 2





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