Vizio L42HDTV10A, GV42L HDTV TV, Composite VIDEO1, 2, S-VIDEO is not Display Correctly

(TV, COMPOSITE VIDEO1, 2, S-VIDEO) IS NOT DISPLAY CORRECTLY

Start

N0

Input signal good?

Yes

N0

U11 input correct?

Yes

N0

1.Check video 2.Check DVD player

1.Check P2&P12 signal 2.Check signal between P2 and

U11 (IF AV1/AV2 mode) 3.Check Tuner &U11 (IF TV mode) 4.Check P12 (IF S-Video) 5.Check U11 POWER +3.3V 6.Check Y1 is OK?

U11 output correct?

Yes

N0

LVDS output correct?

1.Check signal between U20 and U9

1.Check LVDS LINE 2.Check U11 clock (27MHz) 3.Check U11 power

Yes

1.Chcak J5 Connect is good? 2.Is panel working ok?

END

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