Schematic Diagram - Cd Section - Sony HCD-GX20 Service Manual

HCD-GX20
Q Q
5-5. Schematic Diagram – CD Section – • See page 34,35 for IC Block Diagrams.
3 7 6 3 1 5 1 5 0
CD BOARD
OPTICAL PICK-UP
BLOCK
(KSM-213DCP)
CN731
T E
L 1 3 9 4 2 2 9 6 5 1 3
SPDL
IC B/D
BOARD
( )
( )
( )
CN732
CN01
w w w
• See page 19 for Waveforms.
LD DRIVER
4.9
4.2
1.6
50V
IC731
FOCUS/TRACKING/SLED/
SPINDLE SERVO,RF AMP
IC731
LA9242M
IC B/D
IC781
MM1469XH
0
0.7
IC781 SWITCH
FCS/TRK COIL,
SL/SP MOTOR
DRIVER
x a o
y
. i
http://www.xiaoyu163.com
8
IC751
1
DIGITAL SIGNAL
PROCESSOR
IC751
LC78622NE
IC B/D
Q Q
3 7 6 3
ADDRESS SENSOR BOARD
(OPEN/CLOSE)
(UP/DOWN)
SG-264
0.1
1.2
CN711 CN722
IC711
MOTOR BOARD
TABLE SENSOR
u 1 6 3
.
24 24
http://www.xiaoyu163.com
2 4
9 9 8
SWITCH
0
0.8 0.8 0.6
/
0.2
MUTE
MUTE
0.6
0
1 5 1 5 0 8 9 2 4
CN735
CN701
DRIVER BOARD
IC701
MOTOR
DRIVER
IC B/D
(TURN)
CN721 CN702
m
No mark:CD
c o
2
9 9
CN733
TO
A
PANEL BOARD
CN602
(Page 31)
TO
B
MAIN BOARD (1/4)
CN704
(Page 26)
CN734
9 8 2 9 9