Sharp DV-SL90UM Service Manual - Page 43

SYSTEM CONTROL TIMING CHARTS, Tray Close ~ Play / Play ~ Tray Open

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SYSTEM CONTROL TIMING CHARTS Tray Close ~ Play / Play ~ Tray Open Tray IN (TL221) 3.3V 0V Tray Close Sled Drive (TP303) 1.65V 0V Disc Drive (TP301) 1.65V 0V Focus Drive (TP304) 1.65V 0V Tracking Drive 1.65V (TP302) 0V Disc Rotation Play Disc Tray Stop Open 1-13-1 E5945TI

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1-13-1
E5945TI
SYSTEM CONTROL TIMING CHARTS
Tray IN
(TL221)
Sled Drive
(TP303)
Disc Drive
(TP301)
Focus Drive
(TP304)
Tracking Drive
(TP302)
0V
3.3V
0V
1.65V
0V
0V
0V
1.65V
1.65V
1.65V
Tray Close ~ Play / Play ~ Tray Open
Tray
Close
Disc
Rotation
Play
Disc
Stop
Tray
Open