15
15
CDX-L490EE
LD
DRIVE
Q1
62 63 64 65
M902
(SLED)
M901
(SPINDLE)
M903
(LOADING)
SW3
(LIMIT)
SW2
(SELF)
SW5
(DOWN)
SW1
(DISC IN)
X1
16.9344MHz
OPTICAL PICK-UP
(KSS-721A)
I-V
CONV.
CDL
CDR
23
24
M
M
M
IC602
B.UP+B
A
C
B
D
E
F
PD
LD
FOCUS
COIL
TRACKING
COIL
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
A5V
AU5V
D5V
DR6V
SERVO 5V
MECH6V
+
-
+
-
+
-
S702
RESET
3-2. BLOCK DIAGRAM — CD SECTION —
(Page 16)
w w w . x i a o y u 1 6 3 . c o m
Q Q 3 7 6 3 1 5 1 5 0
9
9
2
8
9
4
2
9
8
T E L
1 3 9 4 2 2 9 6 5 1 3
9
9
2
8
9
4
2
9
8
1
3
6
7
3
Q
Q
TEL 13942296513 QQ 376315150 892498299
TEL 13942296513 QQ 376315150 892498299