LG CRD-8161B Service Manual page 24

5
BLOCK DIAGRAM
4
DISC MOTOR
UNIT
SPINDLE
FOCUS TRACKING
MOTOR COIL
3
BA6849
MOTOR DRIVE
SPINDLE
FOCUSING
TRACKING
MOTOR
DRIVE
SIGNAL
SIGNAL
2
SENSOR
1
A
32
CXA2556Q
RF AMP
LASER
PICK-UP
SLED LOADINF
MOTOR MOTOR
COIL
M56759
MOTOR DRIVE
LOADING
SLED
MOTOR
MOTOR
SIGNAL
SIGNAL
DRIVE
SIGNAL
HALL
SLED CONTROL
BLOCK
33.86MHZ
CXD3000R
DSP + SSP
H8/3396
SYSTEM
CONTROLLER
16.934MHz
B
R-CH
L-CH
R-CH
AUDIO
AMP
CIRCUITARY
L-CH
I/F CABLE
OTI-911LP
DECODER+I/F
37MHZ
V53C8125HK45
DRAM
+3.9V
3.9V
REG
+5V
GND
GND
+12V
+8V
8V
REG
C
R-CH
GND
GND
L-CH
HEADPHONE
(OPTIONAL)
HOST
COMPUTER
PC
POWER
+5V
GND
GND
+12V
D