LG HT303PD Service Manual page 24

3. TRAY OPEN/CLOSE SIGNAL
1) Tray open/close waveform
3) Tray open waveform
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2
3
4
FIG 3-1
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3
4
FIG 3-3
2) Tray close waveform
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2
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4
2-15
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2
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4
FIG 3-2
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