Flow Of Functional Operation Unit Toc Read - JVC KD-SH707 Service Manual

KD-SH707

Flow of functional operation unit TOC read

When the pickup correctly moves
to the inner area of the disc
$83
Microprocessor
commands
FMO
TC94A14FA" 40"
FEED MOTOR
+TERMINAL
IC561"4"
REST SW
When correctly focused
FEO
TA2157" 15"
Focus Servo Loop ON
1-24
v
$82 $81
3.3V
Hi-Z
0V
Pickup feed to the inner area
6V
4V
2V
OFF
ON
2.2V
o
RF signal eye-pattern n
remains closed
RF signal eye-pattern
opens
Power ON
Set Function CD
Disc inserted
YES
Laser emitted
Focus search
YES
Disc rotates
Tracking loop closed
TOC read out
Jump to the first track
Play
When the laser diode correctly
emits
$84
Microprocessor
commands
SEL
TC94A14FA"38"
LD
CN501"15"
"No disc"
display
When the disc correctly rotates
Microprocessor
$84 $86 $ A200
commands
DMO
TC94A14FA"41"
Spindle
motor(-)
IC561"1"
Rough
Acceleration
Servo
0.5 Sec 0.5 Sec
Tracking Servo Loop ON
RF signal
Rough Servo Mode
CLV Servo Mode
(Program Area)
CLV Servo Mode
(Lead-In Area;
Digital :0)
3.3V
0V
4V
0V
3.3V
2.2V
0V
6V
3.2
2V
Servo CLV
v