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KD-S680
QQ
3 7 63 1515 0
Flow of functional operation until TOC read
• When the pickup correctly moves
to the inner area of the disc
Microprocessor
commands
FMO
TC9462 "53"
FEED MOTOR
+TERMINAL
TERMINAL
IC581 "5"
REST SW
• When correctly focused
Focus Servo Loop ON
TE
L 13942296513
www
1-12
http://www.xiaoyu163.com
Set Function to CD
Pickup feed to the inner area
RF signal eye-pattern
remains closed
Tracking loop closed
RF signal eye-pattern
opens
Jump to the first track
x
ao
y
.
i
http://www.xiaoyu163.com
8
Power ON
Disc inserted
YES
Laser emitted
"No disc"
Focus search
display
YES
Disc rotates
Microprocessor
Q Q
3
6 7
1 3
commands
Spindle
motor (-)
IC581 "7"
TOC readout
Play
• RF signal
u163
.
2 9
9 4
2 8
• When the laser diode correctly
emits
Microprocessor
commands
• When the disc correctly rotates
1 5
0 5
8
2 9
Rough
Acceleration
Acceleration
Servo
Servo CLV
0.5 Sec 0.5 Sec
Tracking Servo Loop ON
Rough Servo Mode
CLV Servo Mode
(ProgramArea)
m
co
CLV Servo Mode
(Lead-In Area;
Digital: 0)
9 9
9 4
2 8
9 9
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