Flow Of Functional - JVC KD-S871R Service Manual

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
Power ON
Set Function to CD
Disc inserted
Pickup feed to the inner area
YES
Laser emitted
Focus search
Disc rotates
RF signal eye-pattern
remains closed
Tracking loop closed
RF signal eye-pattern
opens
TOC readout
Jump to the first track
Play
• When the laser diode correctly
Microprocessor
commands
"No disc"
display
YES
• When the disc correctly rotates
Microprocessor
commands
Spindle
motor (-)
IC581 "7"
Acceleration Acceleration
0.5 Sec 0.5 Sec
Tracking Servo Loop ON
• RF signal
KD-S871R
emits
Rough
Servo
Servo CLV
Rough Servo Mode
CLV Servo Mode
(ProgramArea)
CLV Servo Mode
(Lead-In Area;
Digital: 0)
1-13