Sanyo DCS-AVD8501 Service Manual page 14

DVD P.W.BOARD OPERATION (SIGNAL)
c. In the case of CD Disc
B. Disc diameter identification
a. In the case of 12cm Disc
Spindle kick
SPD
Tm > 300ms
FG
6 FG = 1 revolution
c. In the case of NO Disc
SPDO
Tm < 155 ms
FG
6 FG = 1 revolution
b. In the case of 8cm Disc
SPDO
Tm > 155 ms
FG
6 FG = 1 revolution
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