Table of Contents
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Flow of functional operation until TOC read
• When the pickup correctly moves
to the inner area of the disc
Microprocessor
$ 82 $81
$ 83
commands
FMO
TC9462
53
FEED MOTOR
TERMINAL
IC581
20
RESET SW
• When correctly focused
Focus Servo Loop ON
Power ON
Set Function to CD
Disc inserted
5V
Hi-Z
0V
Pickup feed to the inner area
6V
4V
2V
Laser emitted
OFF
ON
Focus search
Disc rotates
Tracking loop closed
TOC readout
Jump to the first track
Play
YES
"No disc"
display
YES
• When the disc correctly rotates
Microprocessor
RF signal eye-pattern
commands
remains closed
RF signal eye-pattern
Spindle
opens
motor (+)
• RF signal
CH-X470RF
• When the laser diode correctly
emits
Microprocessor
$ 84
commands
SEL
TC9462
57
LD
CN502
5
or
CN503
22
Rough
Acceler
Acceleration
Acceleration
ation
Servo
Servo CLV
Tracking Servo Loop ON
Rough Servo Mode
CLV Servo Mode
(ProgramArea)
CLV Servo Mode
(Lead-In Area;
Digital: 0)
5V
0V
4V
0V
1-23
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