6-3
FAILURE MODE FLOW CHART
No display (No power)
No
Yes
Yes
Is it 120V AC?
Check the harness of between L1~N
Disconnect power
No
Normal?
Replace the defective harness
1
Check the power transformer (Refer to the below)
measure LVT coil resistance
(Normal: approximately Fig1)
Primary
S2 S1
P
Secondary
Fig.1
Side Lead Color DCR(Ω)
P
S1
S2
black ~ white
yellow ~ yellow
red ~ red
25 ~ 28
1.0 ~ 1.3
1.8 ~ 2.1
Replace the Main PCB(002A)
Normal?
END
Replace the power transformer
END
No
Yes
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