Diagrams; Block Diagram - Cd Section - Sony ICF-CD855V Service Manual

ICF-CD855V
SECTION 6

DIAGRAMS

6-1. BLOCK DIAGRAM – CD Section –
FIN2
PD1
8
DETECTOR
A D
FIN1
PD2
7
B C
F
TIN2
F
10
E
TIN1
E
9
OPTICAL PICK-UP
BLOCK
(KSM-900AAA)
LASER DIODE
AUTOMATIC
LDD
LD
POWER
80
CONTROL
Q701
PD LD
PD
FOCUS/TRACKING COIL DRIVE,
SPINDLE/SLED MOTOR DRIVE
2-AXIS
DEVICE
T+
T+
12
T–
11
T–
F+
F+
17
F–
F–
18
SL+
27
M701
M
SL–
MOTOR DRIVE
(SLED)
26
SP+
2
M702
M
SP–
(SPINDLE) MOTOR DRIVE
1
RF AMP, FOCUS/TRACKING SERVO,
DIGITAL SIGNAL PROCESSOR, CLV SERVO,
DIGITAL FILTER, D/A CONVERTER
+
LPF
IC701
RF
MIX EQ AGC 4
PH
BH
SW
TBAL LPF
TRACK
JUMP
AUDIO
ADJUST
S/H
APC
79 13 15 20 21 23 22
IC702
TIN
TRACKING
9
COIL DRIVE
FOCUS FIN
19
COIL DRIVE
SLIN
SLED
25
SPIN
SPINDLE
3
MUTE 7
RAM
INTERPOLATION
ERROR
MUTE
EFMIN
SLISE LEVEL
3 CORRECTION
CONTROL
AUDIO CD ATTENUATION
DEEMPHASIS
A/D
CLV, CAV
CONTROL
RUPTURE
DETECT
SERVO
RAM
PROCESSOR
D/A SW
GENERAL PURPOSE
PORTS
25 72 66
S701
(LIMIT)
ON : When the optical pick-up
is inner position
16 16
LCHO
8FS
1 BIT 42
DIGITAL LPF RCHO
DAC
45 R-CH
FILTER
AUDIO DOUT
39
OUT
FRAME SYNC
FSEQ
DETECT,
31
PROTECT, INSERT,
EFM DECODE
PLL
VCEC
XOUT
48
CLOCK
X701
GENERATOR XIN
16.9344MHz
49
DRF
DRF 67
COMMAND
INTERFACE
65 61 62 63 64
S619
CD LID OPEN/CLOSE
DETECT
• R-ch is omitted due to same as L-ch.
• SIGNAL PATH
CD L-OUT
A
(Page 18)
39 FSEQ
41 DRF
SYSTEM
CONTROLLER
IC401
(1/2)
53 CD DATA-IN
54 CD DATA
55 CD CLK
56 CD CE
50 WRQ
58 XRST
40
: CD PLAY