3-3
DESPLAY CONDITION?
INVERTOR ABNORMAL
Appear shadow form interference
in black background
There is only bring light.(LCD B/D abnormal)
Fuse Replace
IC(U1) Check and Replace
D2, D3, D8 Check
Main B/D on located
IC(U6) Check and Replace
A/V IN S/W Check
IC(U2) Check and Replace
IC(U3) Check and Replace
FUSE NORMAL?
IC(U1) NORMAL OPERAE
7.5V, 15V, -14.5V Normal?
+5V Normal?
Y/C Display signal?
R. G .B signal output?
VCOM signal?(5.5Vpp)
YES
YES
NO
NO
NO
NO
NO
NO
NO
YES
YES
YES
YES
LCD TROUBLE SHOOTING GUIDE(1/2)
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