Vizio L42HDTV10A, GV42L HDTV service manual Trouble of DDC Reading

TROUBLE OF DDC READING

Start

N0

Analog DDC OK?

Yes

N0

HDMIDDC OK?

Yes

Support DDC1/2B 1.Analog cable ok? 2.Check signal (U20 to P3) 3.Check U20 Voltage 4.Is compliant protocol?

Support DDC1/2B 1.Analog cable ok? 2.Check signal (U32 to P10)

3.Check signal (U34 to P11) 4.Is compliant protocol?

END

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