Block Diagram - Cd Section - Sony CFD-S250L Service Manual

CFD-S250L
6-3. BLOCK DIAGRAM — CD SECTION —
A
C
B
D
E
F
LD
PD
VREF
OPTICAL PICK-UP
BLOCK
(KSS-213R)
TRACKING
COIL
FOCUS
COIL
M702
M
SLED
MOTOR
M701
M
SPINDLE
MOTOR
S701
(LIMIT)
S801
PUSH
OPEN/
CLOSE
RF
A FIN2
8 4
C
PH/BH
B FIN1
7
D
E TIN1
9
F
TIN2
10
LD POWER
LD LDD
CONTROLLER 80
Q701
APC
PD
LDS
79
VR
VREF
VREF 11 VREF
T+
T+ TIN TD
TRACKING
12
9
T– COIL
T–
11
DRIVE
F+ F+ FIN FD
FOCUS
17 19
F– F– COIL
18
DRIVE
MUTE 7
SL+ SL+ SLIN SL
SLED
26 25
SL– SL– MOTOR
27
DRIVE
SP+
SP+ SPIN
SPINDLE SP
2
3
SP– SP– MOTOR
1
DRIVE
SLED/SPINDLE
MOTOR DRIVER, VREF
23
TRACKING/FOCUS
OPIN 15
COIL DRIVER
IC702
29 CD-DOOR
51
Q815
Signal path
CD +3.3V
CD 3.3V REG
: CD
Q957-959,D957
: CD (DIGITAL)
CD-CONT
2
(Page 19)
SLICE
ERROR
EFMIN
LEVEL
3 CORRECTION
CONTROL
AUDIO CD
CLV,CAV
CONTROL
AGC
HFL
PH(RFENV)
A/D
CONVERTER,
FE SWITCH
SERVO
TE
PROCESSOR
VREF
FRAME SYNC
DETECT,PROTECT
INSERT
EFM DECODER
D/A
CONVERTER
GENERAL
PURPOSE
PORT
20 21 22 23 67 31 72 25
VREF
61 63
SYSTEM CONTROLLER
IC802 (1/2) CD
41 40 39 65
POWER +3.3V REG
3.3V 3
CONTROLLER IC801
BATTERY
Q819,D802
CHECK
Q804,806
AUDIO+6V
REG
RADIO 6V
Q955,D953
AUDIO 6V
CD 6V
POWER
VDD (SW) SWITCH
Q952,953
D951
POWER
SWITCH
Q951
18 18
LCHO
42
INTERPOLATION 8FS
MUTE DIGITAL
LPF
& FILTER
ATTENUATION & RCHO
45
DEEMPHASIS 1-bit DAC
AUDIO DOUT
IC705
39 2
OUT
RF AMP,
SYSTEM SERVO PROCESSOR,
DIGITAL SIGNAL PROCESSOR
IC701
PLL
VCEC
COMMAND CLOCK
INTERFACE GENERATOR
66 63 61 62 65 64 49 48
X701
16.93MHz
POWER
TRANSFORMER
64 54 62 55 52 53
F902
D901 – 904
RECT
28
Q801
2
AC-HI
BATT COM
VDD
U-COM
(VDD)
CD_IN_ L
1
(Page 19)
CD_IN_R
IC705
OPTICAL
DIGITAL
OUT(CD)
T901
J901
AC IN
4.5V
DRY BATTERY
SIZE " D "
(IEC DESIGNATION R20)
6PCS, 9V
4.5V