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START
(SYSTEM IN
Dose
light?
NO
Replace the safety switch on
the lamp outer housing
light?
E!
Replace driver
YE!
Figure
3
YES
Reconnect the
end
board
NO
on the driver
Dose screen appear?
Replace driver
the main board
4-4
Dose menu key runs normal? YES
screen will appear)
I
NO
Replace
board
NO
board
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