Functional Block Diagram - LG GCE-8240B Service Manual

BLOCK DIAGRAM

FUNCTIONAL BLOCK DIAGRAM

5
4
Spindle Motor
MSDH-R001A/
SSC35A/C-SP
3
FOCUS
SPINDLE
COIL
MOTOR
BD7902CFS
Spindle/Focus/Tracking/SLED/
Loading DRIVE IC
2
IC501
Host
1
+5V
GND
GND
+12V
A
78
Optical
CXA2638R
Pick-up
RF Amp.
KRS-310B
Wobble
ALPC
SLED Motor
TRACKING
SLED LOADING
COIL
MOTOR MOTOR
+5V
GND
GND
+12V
IC401
IC301
MB90F482
SERVO/DSP
System
Controller
FLASH
MEMORY
2 Mbit
20MHz
X301
IC101
3.3V Reg.
IC102
2.5V Reg.
B
X201
33.8688MHz
IC201
OTI-9797
DECODER
ENCODER
ATIP Demodulator
Wirte Strategy
Data
I/F
IC203
EEPROM
32 Kbit
AUDIO
&
Circuitry
+3.3V
+2.5V
C
I/F
H
Cable
O
S
T
IC202
SDRAM
8M Byte
Line-out
R-ch
L-ch
IC801
Headphone
AMP
BH3544F
D