Block Diagram -Cd Section - Sony CDX-L550X Service Manual

3-2. BLOCK DIAGRAM — CD SECTION —
OPTICAL PICK-UP
KSS-720A
A
A
82
C
C 83
B
B
84
D
I-V
D
85
CONV.
E
E
87
F
F 86
APC
PD
PD 97
LD
LD
DRIVE
LD 98
Q1
FOCUS/TRACKING COIL DRIVE
SLED/SPINDLE/LOADING MOTOR DRIVE
IC2
FCS-
FOCUS
15
FOCUS COIL
FCS+
COIL 16
DRIVE
TRK+
TRACKING
17
TRACKING
COIL
TRK-
COIL
18
DRIVE
SL-
SLED
M902 M 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
RF EFM
EQ DEMOD
DSUB CODE
PROCESS
FORCUS
ERROR
TRACKING
ERROR
SERVO
CTL
62 63 64 65 23
16.9344MHz
FD
26
TD
23
SD
5
MD
6
LOAD
1
EJECT
2
REG
A5V
Q911
AU5V
D5V
DR6V
(Page 16)
TUNER
SECTION
LOUT
A
SYSTEM CONTROL
16
D/A CDL
ROUT
CONV
12 R-CH
PACK
52 31 CD PACK
TSTB
56 51 TSTB
TSCK
55
TSI
54
SI
8 21 CD_SO/TSO
SO
7 22 CD_SI/TSI
SCK
6 23 CD_CKO/TCKO
I/F STB
5 55 CD_TSTB
AO
4 54 CD_AO
RST
3 53 CD_XRST
RFOK
2 52 CD_RFOK
XTALEN
9 56 CD_XTALEN
OSC
24
X1
SW1 60 CD_INSW/PH2
(DISC IN)
30 CD_SELF SW
SW2
(SELF)
CD_LIMIT
57
SW3
(LIMIT)
59 CD_DSW
SW4
(DOWN)
62 CD_LM LO
63 CD_LM EJ
POWER
68
CDM ON
CONTROL
Q908, 909
POWER
79 CD ON
CONTROL
Q907
REG
BATT
Q910
15 15
IC801(1/3)
Q802, 805
BUFFER
BATT DET
28
BU IN
Q803
IC802
D901
RESET 33 1 RESET 2 BU 5V
S901
RESET
• Signal path
CDX-L550X/L570X
D804
BATT
:CD