15
15
CDX-CA720X
3-2. BLOCK DIAGRAM — CD SECTION —
(Page 16)
LD
DRIVE
Q1
62 63 64 65
CDMD ON
SWITCH
Q352
CD ON
SWITCH
Q353
CD+5V
REG
Q350,D350
CD DRIVE+6V
REG
Q351,D351
M902
(SLED)
M901
(SPINDLE)
M903
(LOADING)
SW1
(DISC IN)
SW2
(SELF)
SW3
(LIMIT)
SW5
(DOWN)
X1
16.9344MHz
OPTICAL PICK-UP
KSS-720A
I-V
CONV.
R-CH
23
24
M
M
M
S551
(RESET)
IC551
BU+5.8V
BATT
D352
A
C
B
D
E
F
PD
LD
A+5V
FCS-
FCS+
TRK+
TRK-
SL-
SL+
SP-
SP+
LD-
LD+
FOCUS
COIL
TRACKING
COIL
FD
TD
SD
MD
LOAD
EJECT
SYSTEM CONTROL
IC501(1/3)
RF AMP,DIGITAL SERVO
DIGITAL SIGNAL PROCESSOR
IC1
FOCUS/TRACKING COIL DRIVE,
SLED/SPINDLE/LOADING MOTOR DRIVE
IC2
• Signal path
:CD
• R-ch is omitted due to
same as L-ch.
A+5V
AU+5V
D+5V
DR+6V