Block Diagram -Cd Section - Sony CDX-L300 Service Manual

3-2. BLOCK DIAGRAM — CD SECTION —
OPTICAL PICK-UP
KSS-720A
B
A 84
D
C 85
A
B
82
C
I-V
D
83
CONV.
E
E
87
TRACKING
F
F 86
PD APC
PD
97
LD
DRIVE
LD A5V
Q1
LD
98
FOCUS/TRACKING COIL DRIVE,
SLED/SPINDLE/LOADING MOTOR DRIVE
IC2(MG-393X-121//K)
IC2(MG-393XA-121//K)
FCS-
FOCUS
15
FOCUS
COIL
FCS+
COIL
16 DRIVE
TRK+
TRACKING
17
TRACKING
COIL
TRK-
COIL
18
DRIVE
SL-
M SLED
M902 13
MOTOR
(SLED)
SL+
14
DRIVE
SP+
SPINDLE
M 11
M901
MOTOR
(SPINDLE) SP-
12 DRIVE
LD-
LOADING
M 9
M903
MOTOR
(LOADING) LD+
10
DRIVE
RF AMP,DIGITAL SERVO
DIGITAL SIGNAL PROCESSOR
IC1(MG-393X-121//K)
IC1(MG-393XA-121//K)
D/A
RF EFM
CONV
EQ DEMOD
DSUB CODE
PROCESS
FORCUS
ERROR
I/F
ERROR
SERVO
CTL
OSC
62 63 64 65 23
X1
16.9344MHz
FD
26
TD
23
SD
5
MD
6
LOAD
1
EJECT
2
REG
A_5V
Q910,D910
AU_5V
D_5V
DR_6V
Q907,D908
21
(Page 22)
MAIN
SECTION
LOUT
A
SYSTEM CONTROL
16
CDL
ROUT
IC801(1/3)
12 R-CH
PACK
52
TSTB
56
TSCK
55
TSI
54
SI
8 54 X_SO
SO
7 55 X_SI
SCK
6 56 X_SCK
STB
5 61
STB
AO
4 60
A0
RST
3 58 X_RST
RFOK
2 57
RFOK
XTALEN
9 62 XEN
24
1 D_SW
SW1
(DOWN)
45 SELF_SW
SW2
(SELF)
2 IN_SW
SW3
(DISC IN)
63 L_SW
SW4
(LIMIT)
4 LM _LO
5 LM_ EJ
POWER
50
CDM ON
CONTROL
Q905,906
D909
POWER
51 XCD_ON
CONTROL
Q921
REG
BATT
21
CDX-L300/L460X
IC902
RESET 36 1 RESET 2 U_COM+5V
S581
(RESET)
• Signal path
:CD
• R-ch is omitted due to
same as L-ch.