Sony DVP-M35 / DVP-S300 / DVP-S305 / DVP-S315 / DVP-S500D / DVP-S505D / DVP-S715 Service Manual ▷ View online
– 50 –
3-3-2. CD Sled Control
CD sled control is exactly the same as the DVD.
However settings in IC506 (DSP:CXD8730R) differ.
3-3-3. CD Spindle Control
As the RF signal is processed inside IC806 (CXD1865), the process from the ARP is the
same as the DVD.
3-3-4.
Tilt Control
At CD playing, the tilt control is made using the tilt sensor of optical pickup in a period from
the start of play (start of spindle rotation) to the completion of TOC data reading.
The tilt control in this case is same as tilt servo control by tilt sensor during DVD playing.
The tilt servo is turned off after the completion of TOC data reading.
The tilt servo mode ON/OFF control is done with the tilt servo amplifier in the IC006
(SSI33P3720) on the TK-47 board. (Figure. 3-12)
3-4.
Disc Loading and Chucking
5
18
27
28
44
17
20
13
8
9
43
16
16
19
M
SH
(IC805)
HD6437034
SD13F
L G/A
(IC804)
CXD8728Q
OPN/CLS
IN
BIAS
+2.5V
IC361
LOADING/TILT Driver
BA5912
OUT+
OUT–
MUTE
TREY FREE
System control
MB-78 board
CN302
CN008
CN452
CHUCK
TRAY
CN601
CN101
FL-88 board
S123
O/C
AD4
IFSI
I/F MYCON
(IC604)
MB90T678PFG
–BND
CN005
CN004
Loading
Motor
+5V
+5V
R093
100
S001
R095
10K
TRAY OUT
Sensor
CHUCKING
Sensor
PH001
R094
10K
LDMT+
TK-47 board
LDMT–
13
14
15
6
5
22
23
1
2
14
Figure. 3-19 Loading block
– 51 –
Disc loading, unloading, and chucking operations are performed with one DC motor. Its
block diagram is dhown in Figure 3-19.
3-4-1. Motor Driver
The system controller IC (IC805) controls the open and close of the tray. It monitors the
sensors of the mechanism and
controls the operations of the tray motor via the L G/A IC (IC804).
The tray open/close signal is output by 3-state PWM modulation from IC804.
H (5V) = Open
High Z = Stop
L (Gnd) = Close
The tray speed is controlled by increasing/decreasing the PWM duty ratio.
The TRAY FREE signal is used to control the Mute terminal of the driver directly, turn OFF
the motor drive, and free the operations.
During the stop state, the potential difference between the two terminals of the motor is
controlled to 0V, while during the Tray Free state, the motor is not controlled at all.
3-4-2.
Tray Position Detection
Tray position detection is carried out by the chucking sensor PH001 and tray out sensor
S001 on the TK-47 board. These signals are input to the MB-78 board via the flexible flat
cable, and input to L G/A (IC804) CHUCK @¶P, and TRAY @•P.
The relation between tray position and sensor signals is as shown below:
Mode
<TRAY OUT (CN0055)>
<CHUCKING (CN0056)>
Tray out position
H
L
Tray operating
L
L
Chucking position
L
H
– 52 –
3-5. Differentiation of Disc Type
This series can determine three types of discs (CD/DVD-SL/DVD-DL) at one time
when performing focus-search.
3-5-1. CD/DVD Differentiation
The pit shape and track pitch are quite different between CD and DVD. Because of this
difference, TE is not generated even if a large laser spot for CD is shot at a high density
disk such as DVD. This feature is utilized to judge CD or DVD.
Specifically, even if DVD is played in the CD mode (the optical pickup operates at the
CD side), TE is not generated almost all.
On the other hand, by playing CDs in the CD mode, naturally, the 2Vp-p traverse
waveform (approx.) will be measured. This is used for the detection.
3-5-2. SL/DL Differentiation
SL/DL is differentiated by the PI level.
3-5-3. Differentiation
1)
The servo system mode is CD (MB-78 board: IC452 “9”P and “!º” are “L”)
2)
PI mode is DVD (MB-78 board: IC452 !¡P is “H”)
3)
Both lasers turn ON
4)
The spindle turns ON
5)
The sled is moved to the external circumference slow.
6)
Both focus actuators are moved up and down.
7)
The signal is measured.
IC506 DSP (CXD8730R)
• When the p-p value of the CD traverse waveform (24p) is measured, the PI level
of the DVD is measured at the same time.
• IC805 SH (system controller) reads the TE and PI levels measured by the DSP to
differentiate between CD/DVD-SL/DVD-DL.
• CD/DVD differentiation: TE is generated as a clear traverse waveform,
CD/DVD differentiation: Judged as CD if TE is generated as a clear traverse
waveform.
Figure. 3-21. PI waveform
Figure. 3-20. Traverse waveform
Approx. 2Vp-p
CD
DVD
Approx. 1V
Approx. 0.5V
SL
DL
SL/DL differentiation: The PI level becomes SL>DL.
– 53 –
– 54 –
3-6.
Block diagram (Servo)
Q009,IC004
CN005
CN452
OPTICAL BLOCK
CN001
RF DET.
Control Bus
IDO~7
IC006
57
DVD_RF+
26
2
DVD_RF+
IC806
DVD PDIC
9
9
RFP
63
MDS0
… …
10
10
RFM
64
RF HOLD
47
CXD1865R
MDP0
63
56
IDO~7
Master clock
14
14
A
1
37
DVD_PI
23
5
DVD_PI
IA1 72
CLKIN 65
27M_DSP
13
13
B
2 SSi33P3720A
39
DVD_FE
22
6
DVD_FE
IDO~7
TCK 79
(27.00MHz)
6
6
C
3
IC011
IC506
18
18
D
4
38
DPD
20
8
DPD
… …
3
ACK
IDO~7
PISW
8
SERVO DSP
84 SDPRST
7
94
98
4
100
71
70
8
MIRR 88 TRREF
DVD LD &
5
5
VR
9
23
TIE
11
17
TIE
CXD8730R
ERROR
Module
10
26
TI_ERR
10
18
TI_ERR
BUSY
IC508
IC501
TZC 89 TRIN
FON
27
Q008
Band Pass Filter
TZC DET.
SDSPWR
DFCT
7 DFCTA
SDSPRD
3
3
DVD_LD
Q005
18
DEFECT DET.
44
SSSD
19
9
SSSD
IC452
4
4
DVD_PD
17
43
SCKG3
18
10
SCKG3
SELECTOR
11
PISW
IC503(1/4)
PI 21 AIN5
45
SDEN
17
11
SDEN
DVD_PI 13
BUFFER
2
2
VLD
Q004
20
CDRFDC 12
14
21
16
DVD_FE
3
IC503(3/4)
FE 26 AIN0
Q371
MIRR 30
IC011
CD_FE
5
4
FE
BUFFER
2
CD/DVD
Level
TIOF 19
DPD
1
Sifter
FDCHG
33
MIRR
1
27
MIRR
CD_TE
2
15 TE
IC503(2/4)
TE 24 AIN2
9,10
BUFFER
CD/DVD
MC 14053
Q372
SKEW SENSOR
D004
Q008
SLED-
IC502(2/4)
SLED- 19 AIN7
1
ICD/DVD
Level
38
38
LED
Q001
DVDLDON 21
7
DVDLDON
BUFFER
Sifter
41
41
TIA
SLED+
IC502(3/4)
SLED+
20 AIN6
42
42
TIB
BUFFER
IC005
21
22
CDRF
16
12
CDRF
HYDET
IC502(4/4)
HYDET 18 AIN8
AOUT0
49 TOUT
6,23
IC363
18
CD
28
28
PD1
3
15
CDFE
14
14
CDFE
BUFFER
AOUT1
46 FOUT
3,26
FOCUS & TRACKING
17
LASER
29
29
PD2
4
13
CDTE
13
15
CDTE
TEAGC0
12 GIO2
AOUT2
41 SOUT
DRIVER
11
COUPLER
CXA2555
32
CDRFDC
15
CDRFDC
IC503(4/4)
TEAGC1
11 GIO3
AOUT3
38 SDCNT
12
19
19
AL
25
CDLDON
12
16
CDLDON
BUFFER
BA5981FP
15
27
27
CD_E
5
19
TEATT
2
26
TEATT
DFCTS
99 GIO14
PWM0 75 HYCNTR
16
20
20
CD_F
6
TIOFS
4
20
TIOFS
PWM1 74 SLOFS
9 CD MUTE
14
TILT/H
3
21
TILT/H
TKC 14 GIO0
PWM2 73 TIOFS
20 DVD MUTE
13
23
23
CD_LD
Q007
1
CHUCK
6
22
CHUCK
16
Vc
TRAY
5
23
19
TRAY
Vtop
Vbtm
26
26
MON
2
19
(3.75v)
(1.25v)
25
25
CD_VR
DFCTS
9
DFCTS
PH001
IC507
Power
Power
CD
Supply
FOCUS
S001
TRACKING
COIL
CN008
CN302
30
30
CDFCS+
CDFCS+
23
5
CDFCS+
CDFCS+
31
31
CDFCS-
CDFCS-
21
7
CDFCS-
CDFCS-
DVD
34
34
DVDFCS+
DVDFCS+
22
6
DVDFCS+
DVDFCS+
FOCUS
35
35
DVDFCS-
DVDFCS-
20
8
DVDFCS-
DVDFCS-
TRACKING
COIL
33
33
CDTRK+
CDTRK+
19
9
CDTRK+
CDTRK+
32
32
CDTRK-
CDTRK-
17
11
CDTRK-
CDTRK-
36
36
DVDTRK+
DVDTRK+
18
10
DVDTRK+
DVDTRK+
37
37
DVDTRK-
DVDTRK-
16
12
DVDTRK-
DVDTRK-
CN002
SPINDLE BOARD
SVC
1
24
27
27
3
1
SVC
IC502(1/4)
IC301
2
MDS0
2
2
BUFFER
8
5V
Low Pass Filter
5
MDP0
& Summing Amp
1
1
Gnd
3
3
5
5
W IN2
W IN2
3
25
W IN2
W IN2
1
IC303
DVDLDON
2
3
13
27
28
7
9
8
22
10
58
77
17
14
15
54
46
48
5
18
19
SDSPRD
SPINDLE
6
6
W IN1
W IN1
4
24
W IN1
W IN1
34 SPINDLE DRIVER
CDLDON
SDSPWR
7
7
V IN2
V IN2
5
23
V IN2
V IN2
33
14,15
SPERR
TILT/H
IC804
FON
8
8
V IN1
V IN1
6
22
V IN1
V IN1
32
LB1896
CHUCK
BUSY
9
9
U IN2
U IN2
7
21
U IN2
U IN2 31
27 HFG
TRAY
CXD8728Q
ERROR
10
10
U IN1
U IN1
8
20
U IN1
U IN1 30
11
11
SPVH+
SPVH+
10
18
SPVH+
SPVH+
29
7 NST
NST
12
12
SPVH-
SPVH-
9
19
SPVH-
SPVH-
28
9 SPCTL0
SPCTL0
13
13
U OUT
U OUT
11
17
U OUT
U OUT
23
8 SPCTL1
SPCTL1
LG/A
SSSD
14
14
V OUT
V OUT
12
16
V OUT
V OUT
22
11 SPGC1
SPGC1
SCKG3
15
15
W OUT
W OUT
13
15
W OUT
W OUT
19
10 SPGC2
SPGC2
SDEN
OPN/CLS
TRAY_FREE
CN004
S12VOFF
LOADING
1
1
LDMT+
LDMT+
14
14
LDMT+
LDMT+
8 IC361
17
OPN/CLS
2
2
LDMT-
LDMT-
15
13
2
1
LDMT-
LDMT-
9 TILT DRIVER
13
TRAY_FREE
CN303
LOADING DRIVER
S12VOFF
1
PI
2
D GND
FG-43
CN003
CN361
BA5912
3
FE
TILT
1
TIMT-
TIMT-
TIMT-
TIMT-
5
2
Q452
4
TE
2
TIMT+
TIMT+
TIMT+
TIMT+
6
21
TI_ERR
TI_ERR
CN301
SW
IC501
3
HA-
HA-
1
HA-
HA-
33 IC302
18 TKC
IC502
4
HA+
HA+
2
HA+
HA+
34 SLED DRIVER
DV-
8 SDCNT
IC455
µ
PC393
5
SLVH+
SLVH+
3
SLVH+
SLVH+
23
CTRL
25 HYCNTR
1
3
6
HB+
HB+
4
HB+
HB+
30
7 window
TIE
7
HB-
HB-
5
HB-
HB- 29
DVI 12 SOUT
Comparator
8
SLVH-
SLVH-
6
SLVH-
SLVH-
22
LA6527
SLED
9
SLDMT-
SLDMT-
7
SLDMT-
SLDMT-
5
A+
32
13
HYDET
10
SLDMT+
SLDMT+
8
SLDMT+
SLDMT+
2
SLOFS
CN501
1
HCK
2
HFS
3
HR
SHD7
4
5
SHD6
6
SHD5
7
SHD4
8
SHD3
9
SHD2
10
SHD1
11
SHD0
12
TMS
13
IRST
14
TDI
15
D+5V
16
GND
17
TDO
18
GND
19
20
21
TCK
GND
EMU0
22
EMU1
vc
TK-47
vc
to IC804
to IC805 (SH)
VC
VC
to IC805 (SH)
VC
M
MB-78 Servo Block
VC
10
43
48
74
12
6
1
2
7
3
3
10
6
5
10
12
12
1
1
8
7
7
8
14
14
to CN452
M
M
M
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