1-21
KD-LH7R
Power ON
Set Function to CD
Play
Jump to the first track
TOC readout
Tracking loop closed
Disc rotates
Disc inserted
YES
YES
Laser emitted
Pickup feed to the inner area
Focus search
RF signal eye-pattern
opens
RF signal eye-pattern
remains closed
"No disc"
display
• When correctly focused
Focus Servo Loop ON
• When the laser diode correctly
emits
Microprocessor
commands
Rough Servo Mode
CLV Servo Mode
(ProgramArea)
CLV Servo Mode
(Lead-In Area;
Digital: 0)
• RF signal
Flow of functional operation until TOC read
• When the pickup correctly moves
to the inner area of the disc
TERMINAL
Microprocessor
commands
FMO
TC94A14FA "40"
FEED MOTOR
+TERMINAL
IC681 "4"
REST SW
• When the disc correctly rotates
Tracking Servo Loop ON
Servo CLV
Rough
Servo
AccelerationAcceleration
Microprocessor
commands
Spindle
motor (-)
IC681 "7"
0.5 Sec
0.5 Sec
FEO
1
TA2157FN "15"
TC94A14FA"38"
CN601"10"
3.3V
TN94A14FA
"41"
3.3V
w
w
w
.
x
i
a
o
y
u
1
6
3
.
c
o
m
Q
Q
3
7
6
3
1
5
1
5
0
9
9
2
8
9
4
2
9
8
T
E
L
1
3
9
4
2
2
9
6
5
1
3
9
9
2
8
9
4
2
9
8
0
5
1
5
1
3
6
7
3
Q
Q
TEL 13942296513 QQ 376315150 892498299
TEL 13942296513 QQ 376315150 892498299
http://www.xiaoyu163.com
http://www.xiaoyu163.com
“无奇不有”电路图网 http://www.xiaoyu163.com
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