Flow Of Functional Operation Unit Toc Read - JVC KD-SX870 Service Manual

QQ
3 7 63 1515 0

Flow of Functional Operation Unit TOC Read

When the pickup correctly moves
to the inner area of the disc
$83
Microprocessor
commands
FMO
TC9462"53"
FEED MOTOR
+TERMINAL
IC501"10"
REST SW
When correctly focused
FSO
TA2109
14
TE
L 13942296513
Focus Servo Loop ON
www
.
http://www.xiaoyu163.com
Set Function CD
$82 $81
5V
Hi-Z
0V
Pickup feed to the inner area
6V
4V
2V
OFF
ON
2.2V
RF signal eye-pattern
remains closed
Tracking loop closed
RF signal eye-pattern
opens
Jump to the first track
x ao u163
y
i
2 9
8
Power ON
Disc inserted
YES
Laser emitted
"No disc"
Focus search
display
YES
Q Q
3 6 7 1 3
Disc rotates
Microprocessor
commands
DMO
TC9462
Spindle
motor(-)
IC501"9"
TOC readout
Play
.
9 4 2 8
When the laser diode correctly
emits
$84
Microprocessor
commands
SEL
57
TC9462
LD
1
CN501
1 5 0 5 8 2 9 9 4
When the disc correctly rotates
$84 $86 $ A200
55
Rough
Acceleration Servo CLV
Servo
0.5 Sec 0.5 Sec
Tracking Servo Loop ON
RF signal
Rough Servo Mode
m
CLV Servo Mode
(Program Area)
co
CLV Servo Mode
(Lead-In Area;
Digital: 0)
KD-SX870
KD-SX770
9 9
5V
0V
4V
0V
2 8 9 9
5V
2.2V
0V
6V
3.2
2V
1-11