Block Diagrams - Cd Section - Sony HCD-EP414 Service Manual

6-1. Block Diagram – CD Section –
DETECTOR CD +5V
A
A
6
RF
B SUMMING
B
AMP
7
C
C
8
D
ERROR AMP
D
9
F
F
11 F I-V AMP
E
TRACKING
E
10 E I-V AMP
ERROR AMP
OPTICAL PICK-UP
BLOCK
(KSM-213EDP)
LASER DIODE
Q101
LD
AUTOMATIC APC LD
1
POWER AMP
CONTROL
PD LD
IC102
FOCUS/TRACKING COIL DRIVE,
SPINDLE/SLED MOTOR DRIVE
CH4OUTF
15
CH4SIN
MOTOR
M
M101
CH4OUTR
DRIVE
(SPINDLE) 16
CH3FIN
CH3OUTF
17
MOTOR
M103 M
CH3RIN
CH3OUTR
DRIVE
(SLED)
18
2-AXIS
DEVICE
CH2OUTR CH2RIN
11
COIL
CH2FIN
CH2OUTF
DRIVE
12
CH1OUTR CH1RIN
13
COIL
CH1OUTF CH1FIN
DRIVE
14
MUTE
IC103
RF AMP,
FOCUS/TRACKING ERROR AMP
AC EQ
SUM IN
RFAC RFAC
4 3 EQ 15
VCA
FE
FOCUS
16
FEI
17
RFDCO
RF DC
28
AMP
RFDCI PWM3
29
TE
18
SW
12
PD
2
PWM2
25
40 41 39 43
IC101 (2/2)
DIGITAL SERVO
24
PROCESSOR
A/D
23 CONVERTER
SFDR
28
SRDR
29
TFDR
MIRR/DFCT/
6 30
FOK
TRDR
5 31
DETECTOR
FFDR
32
FRDR
33
3
TO SERVO INTERFACE
2
20
FILTER
IC101 (1/2)
DIGITAL SIGNAL PROCESSOR,
DIGITAL FILTER, D/A CONVERTER
54 56 53 55
16K
RAM
RFAC
ASYMMETRY DIGITAL EFM
51
CORRECTION PLL DEMODULATOR
ASYI
49
ASYO
48
ERROR
CORRECTOR
SUBCODE
DIGITAL SERVO AUTO SERVO
CLV PROCESSOR SEQUENCER INTERFACE
CPU INTERFACE
26 3 14 5 7 6 8 20 1 2 9 21 27
S101
(LIMIT)
36 27 37 35
31 CD DATA
33 CD CLK
32 CD XLT
93 CD LDON
PWM2
9 CD PWM1
PWM3
10 CD PWM2
IC801 (1/2)
SYSTEM CONTROLLER
FOK
24
MIRR
22
DFCT
23
92 CD XRST
17 17
PCMD
62
BCK
D/A
63
LRCK
INTERFACE
61
C2PO
19
AOUT1
70
SERIAL DIGITAL PWM
IN FILTER, &
AOUT2
INTERFACE NOISE SHAPER INTEGRATOR
77
TO MIRR/DFCT/
FOK DETECTOR
DIGITAL
OUT
64 15 18 60
+7V
Q102 Q317
+3.3V
CD +5V
+7V
REG REG
+5V
• Signal Path
: CD
HCD-EP414
CD
AIN1 LOUT1
71 72 L-CH
A
BUFFER
AIN2 LOUT2
76 75
R-CH
MAIN SECTION
XTAI
66
CLOCK
TIMING
XTAO
GENERATOR X101
LOGIC
67
16.9344MHz