Block Diagram - Cd Section - Sony ICF-CD832 Service Manual

5-2. BLOCK DIAGRAM — CD SECTION —
CD BOARD
FIN2
A A
8
C C
B B FIN1
7
D D
E
E TIN1
9
F F TIN2
10
LD POWER
LD LDD
LD
CONTROLLER 80
Q701
PD
PD LDS
79
VR
VREF
VREF
VREF
VREF 11
OPTICAL PICK-UP
BLOCK
(KSS-213R)
T+
T+
TRACKING
12
T–
T–
COIL
11
F+
F+
FOCUS 17
F–
F–
COIL
18
M702
SL+ SL+
M 26
SLED
SL–
SL–
MOTOR 27
M701
SP+ SP+
M
2
SPINDLE
SP– SP–
MOTOR 1
S701
(LIMIT)
SLICE
RF EFMIN
4 3 LEVEL
CONTROL
PH/BH
AGC
HFL
PH(RFENV)
A/D
CONVERTER,
FE
SERVO
TE
PROCESSOR
VREF
APC
D/A
CONVERTER
20 21 22 23
TD
TRACKING TIN
9
COIL
DRIVE
FIN FD
FOCUS
19
COIL
DRIVE
7
MUTE
SLIN
SL
SLED
25
MOTOR
DRIVE
SPINDLE SPIN SP
3
MOTOR
DRIVE
SLED/SPINDLE
MOTOR DRIVER, VREF
23 VREF
TRACKING/FOCUS
OPIN 15
COIL DRIVER
IC702
15 15
INTERPOLATION 8FS
ERROR MUTE DIGITAL
CORRECTION & FILTER
AUDIO CD ATTENUATION &
DEEMPHASIS 1-bit DAC
CLV,CAV RF AMP,
CONTROL SYSTEM SERVO PROCESSOR,
DIGITAL SIGNAL PROCESSOR
IC701
SWITCH
FRAME SYNC
PLL
DETECT,PROTECT
VCEC
INSERT
EFM DECODER
GENERAL
COMMAND CLOCK
PURPOSE
INTERFACE GENERATOR
PORT
67 31 72 25 66 63 61 62 65 64 49 48
X701
16.93MHz
ICF-CD832
CNP702
LCHO 12
42
LPF
RCHO 11
45
MAIN
B
BOARD
CN501
(Page 17)
9
5
7
8
10
4
6
3
2
+6V
14
CD+B
• Signal path
: CD