LG CED-8083B Service Manual page 70

5. Block Diagram
5
* CED-8080B : Optical Pick-up KRS-202A
* CED-8083B : Optical Pick-up KRS-220C
4
Disc
Motor unit
GRS-R02A/
OSM-32A
3
SPINDLE FOCUS TRACKING
MOTOR COIL
BA6664FM
MOTOR DRIVE
2
+8V
8V Reg.
1
A
76
CXA2551R
RF Amp.
Wobble
ALPC
*Optical
Pick-up
KRS-202A/220C
Laser
Control
SLED LOADING
COIL MOTOR MOTOR
BA5983FM
F.T.S.F DRIVE
+5V
GND
GND
+12V
B
33.86MHz
OTI9790
DSP + Servo
DECODER
ENCODER
ATIP Demodulator
Write Strategy
I/F
Data
Command
20MHz
H8/3062
System
Controller
Beta
RF
ROPC
Circuit
A1,A2, B Level
3.3V Reg. +3.3V
+3.9V
3.9V Reg.
+5V
GND
GND
+12V
C
I/F
H
cable
O
S
T
Data
DRAM
CPLD
AUDIO
Circuitry
Headphone
Jack
R-ch
L-ch
Line-out
D