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Zenith DVP7771 Manual page 15

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LCD TROUBLE SHOOTING GUIDE(2/2)
IC805's CLK and CONT signal?
YES
LCD MODE CONT signal?
ALL "LOW"(NORMAL condition)
YES
TFT LCD pressure voltage?
+17V, -15V, +5V, +3.3V
YES
TFT LCD Normal?
YES
Color Adjusting Normal?
YES
Each CONNECTOR?
YES
INVERTOR Normal?
YES
END
NO
IC805 Replace
NO
MAIN B/D Check
NO
Power source and D803, D804 Check
NO
Replace
NO
Readjust as adjustement standard.
NO
Replace and Reassemble
NO
Replace
3-6

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