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6-1.
BLOCK DIAGRAM – CD SERVO Section –
RF AMP,
FOCUS/TRACKING ERROR AMP
IC103
DETECTOR
D+5V
7
A
A
4
5
RF
B
SUMMING
B
AMP
2
6
C
C
1
7
D
D
5
8
FOCUS
ERROR AMP
F
F
10
10
F I-V AMP
E
TRACKING
E
6
11
E I-V AMP
ERROR AMP
OPTICAL PICK-UP
(KSS-213B/C2N)
LASER DIODE
AUTOMATIC
LD
POWER
APC LD
3
CONTROL
AMP
Q101
PD
LD
FOCUS/TRACKING COIL DRIVE,
SPINDLE/SLED MOTOR DRIVE
IC102
CH4OUTF
15
CH4SIN
M101
MOTOR
M
25
CH4OUTR
(SPINDLE)
DRIVE
16
CH3OUTF
CH3FIN
17
24
M102
MOTOR
M
CH3OUTR
CH3RIN
(SLED)
DRIVE
18
23
2-AXIS
DEVICE
CH2OUTF
CH2FIN
12
5
COIL
CH2OUTR
CH2RIN
DRIVE
11
6
CH1OUTF
CH1FIN
14
2
COIL
CH1RIN
CH1OUTR
DRIVE
13
3
MUTE
20
05
SECTION 6
DIAGRAMS
54
RFO
RFAC
RF EQ
ASYMMETRY
16
51
AMP
CORRECTION
ASYI
49
ASYO
48
FE
14
DIGITAL
SUBCODE
TE
CLV
PROCESSOR
13
HOLD SW
21
26
3
14
5 6
LDON
22
APC PD
PD
4
AMP
40
41
39
43
DIGITAL SERVO
PROCESSOR
IC101 (2/2)
A/D
CONVERTER
SFDR
28
SRDR
29
FOK
TFDR
24
MIRR/DFCT/
30
MIRR
22
FOK
TRDR
DFCT
31
DETECTOR
23
FFDR
32
FRDR
33
TO SERVO INTERFACE
DISC IN DETECT
LEVEL SHIFT
SENSOR
Q701
D704, Q703
ROTARY
ENCODER
S707
DISC TRAY
ADDRESS DETECT
– 41 –
FILTER
DIGITAL SIGNAL PROCESSOR,
DIGITAL FILTER, D/A CONVERTER
IC101 (1/2)
56 53
55
16K
PCMD
62
RAM
BCK
D/A
63
LRCK
INTERFACE
61
C2PO
DIGITAL
EFM
19
PLL
DEMODULATOR
SERIAL
IN
INTERFACE
NOISE SHAPER
ERROR
CORRECTOR
SERVO AUTO
SERVO
SEQUENCER
INTERFACE
DIGITAL
CPU INTERFACE
OUT
7
8
20
1 2
9 21 27
64 15
18
60
S101
(LIMIT)
ON :
When the optical pick-up
is inner position.
74 46
68 70
2
1
BUSD0
33
30
CLK
IC304
31
XLT
CD DIGITAL OUT
29
DATA
SWITCH
71
LPH (XMODE)
S702
S702 (LID)
PANEL SW
32
(ON: When CD lid is close.)
S701
S701 (MID OUT)
MIDOUT SW
20
(ON: When tray is going to open/close.)
S708
S708 (OUT)
OUT SW 18
(ON: When tray is open.)
S704
S704 (IN)
IN SW 19
(ON: When sub tray set to play position.)
S703
S703 (MID IN)
MIDIN SW 21
(ON: When sub tray move between tray and stocker.)
S705
S705 (INIT)
INIT SW 26
(ON: When elevator down to buttom.)
S706
S706 (COUNT)
CNT SW 60
(ON: When elevator up/down each sub tray stock position.)
MASTER CONTROLLER
(CD MECHANISM CONTROLLER)
IC300 (1/2)
LOADING MOTOR DRIVE
IC702
IN1
LOD NEG
15
3
MOTOR
IN2
DRIVE
LOD POS
14
6
10 BDRST
ELEVATOR
DISC SENS
59
UP/DOWN MOTOR DRIVE
IC701
IN1
16
3
CLP POS
MOTOR
23
ENCODE0
IN2
DRIVE
24
ENCODE1
CLP NEG
17
6
25
ENCODE2
AOUT1
AIN1
LOUT1
70
71
DIGITAL
PWM
FILTER,
&
BUFFER
AOUT2
AIN2
LOUT2
INTEGRATOR
77
76
TO MIRR/DFCT/
FOK DETECTOR
XTAI
CLOCK
TIMING
XTAO
GENERATOR
LOGIC
+5V
Q405
Q406
SWITCH
IC405
(1/3)
10
8
CD DIGITAL OUT/
4
9
OPTICAL INPUT SIGNAL
SELECTOR
IC405
IC405
(3/3)
IC404
5
(2/3)
OPTICAL
1
OPTICAL IN
RECEIVER
3
4
DIGITAL IN
2
IC404
OUT1
7
M702
M
OUT2
(LOADING)
2
• SIGNAL PATH
OUT1
7
M701
M
OUT2
(ELEVATOR UP/DOWN)
2
– 42 –
HMC-MD777
J901 (1/2)
72
L
LOW-PASS
FILTER
75
IC901
R
CD ANALOG OUT
66
X101
67
16.9344MHz
OPT SEL
D
(Page 44)
IC405
CD DIGITAL/
OPTICAL IN
6
B
(Page 44)
CS/BS SEL
E
(Page 48)
: CD PLAY (ANALOG)
: CD PLAY (DIGITAL)
: OPTICAL IN
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