Read Sony CMT-C7NT / HCD-C7NT Service Manual online
46
46
HCD-C7NT
6-2. Block Diagram – CD Servo Section –
• Signal Path
: CD
OPTICAL PICK-UP
BLOCK
OPTIMA-720L1E
VA
9
VB
VE
VF
LD
1/2VCC
VCC
+5V
GND
MD
VR
LD
DRIVE
Q101
RF AMP
IC103
VC
27
VFC
25
B
7
A
6
C
8
D
9
E
10
F
11
LD
1
PD
2
VC
IC102
MOTOR/COIL DRIVER
VO1(+)
14
VO1(-)
13
12
11
15
16
M
M
FEED
MOTOR
18
17
M
SPINDLE
MOTOR
F+
FOCUS
COIL
TRACKING
COIL
F-
TR+
TR-
2
OPIN1(+)
3
OPIN1(-)
5
6
27
26
23
MDP
25
SRDR
30
SFDR
29
TRDR
32
TFDR
31
FRDR
34
FFDR
33
DIGITAL SIGNAL PROCESSOR
IC101
DIGITAL SERVO,
D OUT
RFAC
50
28
RFDCO
15
26
RFAC
16
FE
18
TE
12
SW
17
FEI
29
RFDCI
RFDC
43
FE
39
TE
41
SE
VCC
RV101
40
4
DATA
DATA
6
CLOK
CLK
5
XLAT
XLT
76
SQSO
SQSO
7
SENS
SENS
26 SSTP
19 TE_BAL
2
XRST
69
XTSL
MASTER CONTROL
IC501(1/2)
CXD-DATA
7
8
SCLK
77
SQCK
SCLK
15
SCOR
SCOR
71
XTAI
72
XTAO
CXD-CLK
8
CXD-XLT
11
SUBQ
15
SENSE
14
SCLK
17
SCOR
95
CTRL1
CTRL1(1-2)
18
LDON
LDON
13
BDRST
XRST
29
27
26
7
9
4
2
PWM1
PWM1
12
PWM2
PWM2
19
PWM3
PWM3
20
VO2(+)
VO2(-)
VO4(+)
VO4(-)
VO3(-)
VO3(+)
OPIN2(+)
OPIN(2-)
OPIN4(+)
OPIN4(-)
OPIN3(-)
RFC
SWITCH
Q102
+3.3V
REG
Q103,D101
X201
33.8688MHz
S5
LIMIT
IN
SWITCH
+5V
+5V
+3.3V
8
4
6
2
3
7
10
5
1
SD+
SD-
SP+
SP-
SW1
30
SW2
31
SW3
32
SW4
S1
(Disc IN/8cm Disc Detect )
S2
(12cm Disc/12cm Disc Eject End Detect)
S3
(Disc/Chacking/Release Detect)
S4
(8cm Disc Eject End Detect)
33
IC1102
LOADING MOTOR DRIVER
RIN
FIN
OUT1
OUT2
LODPOS
LODNEG
M902
(LOADING)
M903
M904
A
64
D OUT
USB
SECTION
(Page 49)
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