Alpine 3JDE-788S Service Manual page 70

DS-L
SERIES
410. Disc loading status check :
The status for the disc to move to the mechanism is checked by two photo sensors (PT701,
PT702).
The voltages of IC601 pin #76 and #79 are controlled by both the photo sensors and change to
Low —> High —> Low.
This means that the disc loading has been completed.
11. Tray magazine importation :
After the voltages of IC601 pin #76 and #79 are controlled by both the photo sensors and change
to Low —> High —> Low and the load switch (1C601 pin #27) is turned on, IC601 pin #25 (tray
BWD) outputs 5V, 7V is supplied to the magazine tray motor (tray motor BWD side -black wire)
from |C702 pin #3, which returns the magazine tray to its original position, and the disc is
chucked until the LPS HEX value reaches the 40 home position.
M LOAD
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